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Nakasa T, Ikuta Y, Sumii J, Nekomoto A, Kawabata S, Luthfi APWY, Adachi N. Loosening of the anterolateral capsule affects the stability after arthroscopic lateral ankle ligament repair of chronic ankle instability. Arch Orthop Trauma Surg 2024; 144:189-196. [PMID: 37801132 DOI: 10.1007/s00402-023-05076-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/14/2023] [Accepted: 09/17/2023] [Indexed: 10/07/2023]
Abstract
PURPOSE Arthroscopic anterior talofibular ligament (ATFL) repair for chronic lateral ankle instability (CLAI) has been widely performed. The recurrence of the instability after the surgery sometimes occurs, which may cause the development of osteoarthritis. Therefore, it is important to elucidate the factors of the recurrence. This study aimed to evaluate the loosening of the capsule in the MRI and whether it affected clinical outcomes or not in arthroscopic ATFL repair. MATERIALS AND METHODS Thirty-eight ankles in 35 patients with CLAI treated by arthroscopic lateral ligament repair were included. The capsule protrusion area defined as the area that protruded ATFL laterally from the line connecting the fibula and talus attachment on MRI was measured. Capsule protrusion area in ankles with or without CLAI was compared and the relationships between it and clinical outcomes were assessed. RESULTS The capsule protrusion area in the CLAI group (74.2 ± 36.4 mm2) was significantly larger than that in the control (25.5 ± 14.3 mm2) (p < 0.01). The capsule protrusion area in the poor remnant group (93.8 ± 36.4 mm2) was significantly larger than that in the excellent (53.2 ± 40.3 mm2) (p < 0.05). The capsule protrusion area in the patients with recurrent instability (99.8 ± 35.2 mm2) was significantly larger than that without recurrent instability (62.4 ± 30.9 mm2) (p < 0.01). Clinical scores in the recurrent group were significantly lower than those in the non-recurrent group (p < 0.05). CONCLUSIONS Capsule loosening would be one of the causes of the recurrence of instability after arthroscopic lateral ankle ligament repair. Evaluation of the capsule protrusion area on MRI is helpful to choose appropriate surgical procedures for CLAI patients. LEVEL OF EVIDENCE: 4
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Affiliation(s)
- Tomoyuki Nakasa
- Department of Orthopaedic Surgery, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3 Kasumi, Minamiku, Hiroshima, Hiroshima, 734-8551, Japan.
| | - Yasunari Ikuta
- Department of Orthopaedic Surgery, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3 Kasumi, Minamiku, Hiroshima, Hiroshima, 734-8551, Japan
| | - Junichi Sumii
- Department of Orthopaedic Surgery, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3 Kasumi, Minamiku, Hiroshima, Hiroshima, 734-8551, Japan
| | - Akinori Nekomoto
- Department of Orthopaedic Surgery, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3 Kasumi, Minamiku, Hiroshima, Hiroshima, 734-8551, Japan
| | - Shingo Kawabata
- Department of Orthopaedic Surgery, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3 Kasumi, Minamiku, Hiroshima, Hiroshima, 734-8551, Japan
| | - Andi Praja Wira Yudha Luthfi
- Department of Orthopaedic Surgery, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3 Kasumi, Minamiku, Hiroshima, Hiroshima, 734-8551, Japan
- Department of Orthopaedics and Traumatology, Bhayangkara Tk.I R. Said Sukanto Police Hospital, Jakarta, Indonesia
| | - Nobuo Adachi
- Department of Orthopaedic Surgery, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3 Kasumi, Minamiku, Hiroshima, Hiroshima, 734-8551, Japan
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Kizawa F, Suzuki D, Nagoya S, Kanaizumi A, Shimizu T, Irie T, Takahashi D, Iwasaki N. Joint instability in patients with borderline developmental dysplasia of the hip. Clin Biomech (Bristol, Avon) 2024; 111:106136. [PMID: 38065038 DOI: 10.1016/j.clinbiomech.2023.106136] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/05/2022] [Revised: 10/08/2023] [Accepted: 10/27/2023] [Indexed: 01/16/2024]
Abstract
BACKGROUND The treatment strategy for developmental dysplasia of the hip is determined based on the lateral center-edge angle. Nonetheless, an evaluation of joint instability may be important in determining the treatment strategy. This study classified the displacement patterns of the femoral head center during hip abduction. METHODS Ten patients with borderline developmental dysplasia of the hip, 10 patients with developmental dysplasia of the hip, and 10 patients with normal hips were analyzed. Image matching was performed using X-ray images of hip abduction with a three-dimensional hip model. The displacement of the femoral head center and its trajectory length were measured. A cluster analysis was conducted to classify the displacement pattern of the femoral head center, and trajectory lengths were compared. FINDINGS Displacement was classified into three patterns: medialization, hinge abduction, and centering. Patients with borderline developmental hip dysplasia exhibited all three patterns. Almost all patients with developmental dysplasia of the hip showed medialization and hinge abduction, whereas all normal patients had the centering type. The mean trajectory length indices for the medialization and hinge abduction types were significantly longer than those for the centering type (P = 0.01 and P = 0.016, respectively). INTERPRETATION Borderline developmental dysplasia of the hip is a heterogeneous condition characterized by varying hip instability levels. Our findings suggest that uniform evaluation based on the lateral center-edge angle is inappropriate and that joint instability must be evaluated in each patient with borderline developmental dysplasia of the hip.
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Affiliation(s)
- Fumiya Kizawa
- Division of Rehabilitation, Hokkaido University Hospital, Kita-14, Nishi-5, Kita-ku, Sapporo 060-8648, Japan; Department of Musculoskeletal Biomechanics and Surgical Development, Sapporo Medical University, Minami-1, Nishi-17, Chuo-ku, Sapporo 060-8556, Japan.
| | - Daisuke Suzuki
- Department of Musculoskeletal Biomechanics and Surgical Development, Sapporo Medical University, Minami-1, Nishi-17, Chuo-ku, Sapporo 060-8556, Japan; Department of Health Sciences, Hokkaido Chitose College of Rehabilitation, Satomi 2-10, Chitose 066-0055, Japan.
| | - Satoshi Nagoya
- Department of Musculoskeletal Biomechanics and Surgical Development, Sapporo Medical University, Minami-1, Nishi-17, Chuo-ku, Sapporo 060-8556, Japan.
| | - Arata Kanaizumi
- Department of Orthopaedic Surgery, Sapporo Medical University School of Medicine, Minami-1, Nishi-17, Chuo-ku, Sapporo 060-8556, Japan
| | - Tomohiro Shimizu
- Department of Orthopaedic Surgery, Faculty of Medicine, Hokkaido University Graduate School of Medicine, Kita-15, Nishi-7, Kita-ku, Sapporo 060-8638, Japan.
| | - Tohru Irie
- Department of Orthopaedic Surgery, Faculty of Medicine, Hokkaido University Graduate School of Medicine, Kita-15, Nishi-7, Kita-ku, Sapporo 060-8638, Japan
| | - Daisuke Takahashi
- Department of Orthopaedic Surgery, Faculty of Medicine, Hokkaido University Graduate School of Medicine, Kita-15, Nishi-7, Kita-ku, Sapporo 060-8638, Japan.
| | - Norimasa Iwasaki
- Department of Orthopaedic Surgery, Faculty of Medicine, Hokkaido University Graduate School of Medicine, Kita-15, Nishi-7, Kita-ku, Sapporo 060-8638, Japan.
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Zhang L, Sun X, Jiang L, Zhou X, Shi H, Yang Y, Cai M, Wang G. The morphology of osseous structure in subtalar joint with chronic ankle instability. Foot Ankle Surg 2024; 30:74-78. [PMID: 37748980 DOI: 10.1016/j.fas.2023.09.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/18/2023] [Revised: 07/22/2023] [Accepted: 09/19/2023] [Indexed: 09/27/2023]
Abstract
BACKGROUND Osseous structures have been demonstrated as risk factors for chronic ankle instability (CAI). Previously, the researchers only focused on the osseous structures of ankle, but ignored the osseous structures of subtalar joint(STJ). Accordingly, the aim of our study was to investigate the morphological characteristics of STJ osseous structures in CAI. METHODS 52 patients with CAI and 52 sex- and age- matched control subjects were enrolled from The Affiliated Traditional Chinese Medicine Hospital of Southwest Medical University. The lateral radiographs of ankle in weight-bearing were used to compare the diversity of the two groups. Specifically, The Length of calcaneus, Calcaneal facet height and Absolute foot height, Böhler's angle, Gissane's angle, Calcaneal inclination angle, Talocalcaneal angle, Tibiotalar angle, Tibiocalcaneal angle, Talar-horizontal angle, talar declination angle, facet inclination angle were gauged in the two groups. RESULTS The Böhler's angle, Calcaneal inclination, Talocalcaneal angle, Tibiotalar angle, Talar-horizontal angle, Talar declination angle, Facet inclination angle and Absolute foot height of CAI group were significantly higher than normal control group (P < 0.05). There were no significant differences in Gissane's angle, Tibiocalcaneal angle, Length of calcaneus and Calcaneal facet height between patients with CAI and normal controls (P > 0.05). CONCLUSIONS The osseous structures of STJ in CAI patients are different from normal people in morphology. Therefore, we should pay more attention to the changes of STJ anatomical parameters in the diagnosis and prevention of CAI. LEVEL OF EVIDENCE Ⅲ.
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Affiliation(s)
- Lei Zhang
- Department of Orthopedics, The Affiliated Traditional Chinese Medicine Hospital of Southwest Medical University, Luzhou 646000, China; Center for Orthopedic Diseases Research, The Affiliated Traditional Chinese Medicine Hospital of Southwest Medical University, Luzhou 646000, China
| | - Xinghao Sun
- School of Clinical Medicine, Southwest Medical University, Luzhou 646000, China
| | - Lu Jiang
- School of Traditional Chinese and Western Medicine, Southwest Medical University, Luzhou 646000, China
| | - Xin Zhou
- Department of Orthopedics, The Affiliated Traditional Chinese Medicine Hospital of Southwest Medical University, Luzhou 646000, China; Center for Orthopedic Diseases Research, The Affiliated Traditional Chinese Medicine Hospital of Southwest Medical University, Luzhou 646000, China
| | - Houyin Shi
- Department of Orthopedics, The Affiliated Traditional Chinese Medicine Hospital of Southwest Medical University, Luzhou 646000, China; Center for Orthopedic Diseases Research, The Affiliated Traditional Chinese Medicine Hospital of Southwest Medical University, Luzhou 646000, China
| | - Yuening Yang
- School of Clinical Medicine, Southwest Medical University, Luzhou 646000, China
| | - Mingyang Cai
- School of Traditional Chinese and Western Medicine, Southwest Medical University, Luzhou 646000, China
| | - Guoyou Wang
- Department of Orthopedics, The Affiliated Traditional Chinese Medicine Hospital of Southwest Medical University, Luzhou 646000, China; Center for Orthopedic Diseases Research, The Affiliated Traditional Chinese Medicine Hospital of Southwest Medical University, Luzhou 646000, China.
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Li Q, Li Y, Shan J, Hua Y. Prevalence and Injury Patterns of CFL Injury in Chronic Lateral Ankle Instability: An Observational Cross-Sectional Study Using Ultrasound. J Foot Ankle Surg 2024; 63:27-32. [PMID: 37597584 DOI: 10.1053/j.jfas.2023.08.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/10/2021] [Revised: 05/18/2023] [Accepted: 08/13/2023] [Indexed: 08/21/2023]
Abstract
The purpose of this paper is to assess the prevalence and injury patterns of the calcaneofibular ligament (CFL) in chronic lateral ankle instability (CAI) patients using ultrasound imaging. This retrospective study included 938 ankle ultrasound images from January 2016 to May 2018. The patients' demographic data and the injury pattern classified by the injury location and the remnant quality were recorded and correlated using t tests, Fisher's exact tests, and post hoc tests accordingly. Of the 938 CAI patients, CFL injury was found in 408/938 (44%). Among the 408 anterior talofibular ligament (ATFL) and CFL complex injury patients, 71/408 (17%) presented with a completely absorbed ATFL, whereas 13/71 (18%) presented with an absorbed CFL. The total CFL absorption proportion in all patients was relatively low (30/938 = 3%). Post hoc tests indicated a negative association between thickened ATFLs and complex injuries. In addition, a positive association existed between absorbed ATFLs and complex injuries as well as absorbed ATFLs and absorbed CFLs. Thus, the results indicated that total tearing and absorption injury patterns of the CFL in CAI are not common. Even when the ATFL is absorbed, only approximately one-fifth (13/71 = 18%) of CFLs require reconstruction, suggesting that it is unnecessary to routinely repair or reconstruct CFLs in all lateral ligament surgeries.
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Affiliation(s)
- Qianru Li
- Department of Sports Medicine, Huashan Hospital, Fudan University, Shanghai, China
| | - Yibin Li
- Department of Sports Medicine, Quanzhou Orthopedic-Traumatological Hospital, Fujian University of Traditional Chinese Medicine, Quanzhou, Fujian, China
| | - Jieling Shan
- Department of Ultrasound, Huashan Hospital, Fudan University, Shanghai, China.
| | - Yinghui Hua
- Department of Sports Medicine, Huashan Hospital, Fudan University, Shanghai, China.
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Bhatia DN, Malviya P. How does dynamic arthroscopic tracking compare with radiologic glenoid track for identification of on- and off-track lesions in anterior shoulder instability? J Shoulder Elbow Surg 2024; 33:23-31. [PMID: 37339701 DOI: 10.1016/j.jse.2023.05.018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/12/2023] [Revised: 04/14/2023] [Accepted: 05/06/2023] [Indexed: 06/22/2023]
Abstract
BACKGROUND Current treatment paradigms for anterior shoulder instability are based on radiologic measurements of glenohumeral bone defects, and mathematical calculation of the glenoid track (GT) is used to classify lesions into on-track and off-track morphology. However, radiologic measurements have shown high variability, and GT widths under dynamic conditions have been reported to be significantly smaller than those under static radiologic conditions. The purpose of this study was to assess the reliability, reproducibility, and diagnostic validity of dynamic arthroscopic standardized tracking (DAST) in comparison to the gold-standard radiologic track measurement method for the identification of on- and off-track bony lesions in patients with anteroinferior shoulder instability. METHODS Between January 2018 and August 2022, 114 patients with traumatic anterior shoulder instability were evaluated using 3-T magnetic resonance imaging or computed tomography scans; glenoid bone loss, Hill-Sachs interval, GT, and Hill-Sachs occupancy ratio (HSO) were measured, and defects were classified as on-track or off-track defects and peripheral-track defects (based on HSO percentage) by 2 independent researchers. During arthroscopy, a standardized method (DAST method) was used by 2 independent observers to classify defects into on-track defects (central and peripheral) and off-track defects. Interobserver reliability of the DAST and radiologic methods was calculated using the κ statistic and reported as percentage agreement. Diagnostic validity (sensitivity, specificity, positive predictive value, and negative predictive value) of the DAST method was calculated using the radiologic track (HSO percentage) as the gold standard. RESULTS The radiologically measured mean glenoid bone loss percentage, Hill-Sachs interval, and HSO in off-track lesions were lower with the arthroscopic method (DAST) as compared with the radiologic method. The DAST method showed nearly perfect agreement between the 2 observers for the on-track/off-track classification (κ = 0.96, P < .001) and the on-track central or peripheral /off-track classification (κ = 0.88, P < .001). The radiologic method showed greater interobserver variability (κ = 0.31 and κ = 0.24, respectively) with only fair agreement for both classifications. Inter-method agreement varied between 71% and 79% (95% confidence interval, 62%-86%) between the 2 observers, and reliability was assessed as slight (κ = 0.16) to fair (κ = 0.38). Overall, for identification of an off-track lesion, the DAST method showed maximum specificity (81% and 78%) when radiologic peripheral-track lesions (HSO percentage of 75%-100%) were considered off-track and showed maximum sensitivity when arthroscopic peripheral-track lesions were classified as off-track. CONCLUSION Although inter-method agreement was low, a standardized arthroscopic tracking method (DAST method) showed superior interobserver agreement and reliability for lesion classification in comparison to the radiologic track method. Incorporating DAST into current algorithms may help reduce variability in surgical decision making.
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Affiliation(s)
- Deepak N Bhatia
- Shoulder and Upper Limb Surgery, SportsDocs, Mumbai, India; Department of Orthopaedic Surgery, Sir H.N. Reliance Foundation Hospital and Research Center, Mumbai, India.
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Xue X, Lu R, Li H, Chen Z, Sheng D, Jin Z, Liu S, Liu A, Yan X, Tang W, Chen S, Hua Y. In Vivo Characterization of Cerebellar Peduncles in Chronic Ankle Instability: A Single and Multishell Diffusion-Weighted Imaging Study. Sports Health 2024; 16:38-46. [PMID: 38112261 PMCID: PMC10732106 DOI: 10.1177/19417381231156544] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2023] Open
Abstract
BACKGROUND Ankle sprain causes proprioceptor injuries and prolonged joint deafferentation, which might lead to maladaptive neuroplasticity in patients with chronic ankle instability (CAI), especially in the cerebellum. Previous studies have indicated the impairment of superior cerebellar peduncle (SCP), but the inferior cerebellar peduncle (ICP) and middle cerebellar peduncle (MCP) have not been fully analyzed. HYPOTHESIS The cerebellar peduncles of participants with CAI would have altered fractional anisotropy (FA) and orientation dispersion index (ODI) in comparison with healthy controls without ankle injury history. In addition, FA and ODI would be correlated with the duration or severity of the sensorimotor deficits in CAI. STUDY DESIGN Cross-sectional study. LEVEL OF EVIDENCE Level 3. METHODS A group of 27 participants with CAI and 26 healthy controls underwent diffusion-weighted imaging scanning, with the cerebellar peduncles as the regions of interest. The measures obtained by single-shell diffusion tensor imaging and the multishell neurite orientation dispersion and density imaging were used. Correlation analyses were performed to examine the potential relationship between the FA/ODI and both the normalized Y-balance scores and the durations of ankle instability. RESULTS The ipsilateral ICP of the injured ankle in participants with CAI showed significantly lower FA (Cohen d 95% CI, -1.33 to -0.21; P = 0.04) and marginally significant higher ODI (Cohen d 95% CI, 0.10 to 1.20, P = 0.08) when compared with the same measures in the control group, with the ODI being positively correlated with the duration of ankle instability (r = 0.42, P = 0.03). CONCLUSION The ICP in participants with CAI exhibited impaired integrity and a trend of abnormally organized neurites in comparison with a healthy control group. CLINICAL RELEVANCE The impairments of ICP might be an ongoing part of the pathological process of CAI, having the potential to become a target for the diagnostic evaluation of this clinical entity.
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Affiliation(s)
- Xiao’ao Xue
- Department of Sports Medicine, Huashan Hospital, Fudan University, Shanghai, China
| | - Rong Lu
- Department of Radiology, Huashan Hospital, Fudan University, Shanghai, China
| | - Hong Li
- Department of Sports Medicine, Huashan Hospital, Fudan University, Shanghai, China
| | - Ziyi Chen
- Department of Sports Medicine, Huashan Hospital, Fudan University, Shanghai, China
| | - Dandan Sheng
- Department of Sports Medicine, Huashan Hospital, Fudan University, Shanghai, China
| | - Zhengbiao Jin
- Department of Sports Medicine, Huashan Hospital, Fudan University, Shanghai, China
| | - Shiyin Liu
- Department of Radiology, Huashan Hospital, Fudan University, Shanghai, China
| | - Ailin Liu
- Department of Medical Ultrasound, Huashan Hospital, Fudan University, Shanghai, China
| | - Xu Yan
- Scientific Marketing, Siemens Healthcare Ltd., Shanghai, China
| | - Weijun Tang
- Department of Radiology, Huashan Hospital, Fudan University, Shanghai, China
| | - Shuang Chen
- Department of Radiology, Huashan Hospital, Fudan University, Shanghai, China
| | - Yinghui Hua
- Department of Sports Medicine, Huashan Hospital, Fudan University, Shanghai, China
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Borjali A, Ashkani-Esfahani S, Bhimani R, Guss D, Muratoglu OK, DiGiovanni CW, Varadarajan KM, Lubberts B. The use of deep learning enables high diagnostic accuracy in detecting syndesmotic instability on weight-bearing CT scanning. Knee Surg Sports Traumatol Arthrosc 2023; 31:6039-6045. [PMID: 37823903 DOI: 10.1007/s00167-023-07565-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/09/2022] [Accepted: 09/02/2023] [Indexed: 10/13/2023]
Abstract
PURPOSE Delayed diagnosis of syndesmosis instability can lead to significant morbidity and accelerated arthritic change in the ankle joint. Weight-bearing computed tomography (WBCT) has shown promising potential for early and reliable detection of isolated syndesmotic instability using 3D volumetric measurements. While these measurements have been reported to be highly accurate, they are also experience-dependent, time-consuming, and need a particular 3D measurement software tool that leads the clinicians to still show more interest in the conventional diagnostic methods for syndesmotic instability. The purpose of this study was to increase accuracy, accelerate analysis time, and reduce interobserver bias by automating 3D volume assessment of syndesmosis anatomy using WBCT scans. METHODS A retrospective study was conducted using previously collected WBCT scans of patients with unilateral syndesmotic instability. One-hundred and forty-four bilateral ankle WBCT scans were evaluated (48 unstable, 96 control). We developed three deep learning models for analyzing WBCT scans to recognize syndesmosis instability. These three models included two state-of-the-art models (Model 1-3D Convolutional Neural Network [CNN], and Model 2-CNN with long short-term memory [LSTM]), and a new model (Model 3-differential CNN LSTM) that we introduced in this study. RESULTS Model 1 failed to analyze the WBCT scans (F1 score = 0). Model 2 only misclassified two cases (F1 score = 0.80). Model 3 outperformed Model 2 and achieved a nearly perfect performance, misclassifying only one case (F1 score = 0.91) in the control group as unstable while being faster than Model 2. CONCLUSIONS In this study, a deep learning model for 3D WBCT syndesmosis assessment was developed that achieved very high accuracy and accelerated analytics. This deep learning model shows promise for use by clinicians to improve diagnostic accuracy, reduce measurement bias, and save both time and expenditure for the healthcare system. LEVEL OF EVIDENCE II.
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Affiliation(s)
- Alireza Borjali
- Harris Orthopaedics Laboratory, Department of Orthopaedic Surgery, Massachusetts General Hospital, 55 Fruit St. GRJ 1121B, Boston, MA, 02114, USA.
- Department of Orthopaedic Surgery, Harvard Medical School, Boston, MA, USA.
| | - Soheil Ashkani-Esfahani
- Department of Orthopaedic Surgery, Harvard Medical School, Boston, MA, USA
- Foot & Ankle Research and Innovation Laboratory, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
| | - Rohan Bhimani
- Foot & Ankle Research and Innovation Laboratory, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
| | - Daniel Guss
- Department of Orthopaedic Surgery, Harvard Medical School, Boston, MA, USA
- Foot & Ankle Research and Innovation Laboratory, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
| | - Orhun K Muratoglu
- Harris Orthopaedics Laboratory, Department of Orthopaedic Surgery, Massachusetts General Hospital, 55 Fruit St. GRJ 1121B, Boston, MA, 02114, USA
- Department of Orthopaedic Surgery, Harvard Medical School, Boston, MA, USA
| | - Christopher W DiGiovanni
- Department of Orthopaedic Surgery, Harvard Medical School, Boston, MA, USA
- Foot & Ankle Research and Innovation Laboratory, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
| | | | - Bart Lubberts
- Foot & Ankle Research and Innovation Laboratory, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
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Takasawa E, Iizuka Y, Takakura K, Inomata K, Tomomatsu Y, Ito S, Honda A, Ishiwata S, Mieda T, Chikuda H. Radiographic Predictors of Subaxial Subluxation After Atlantoaxial Fusion. Clin Spine Surg 2023; 36:E524-E529. [PMID: 37651563 DOI: 10.1097/bsd.0000000000001514] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/28/2022] [Accepted: 07/19/2023] [Indexed: 09/02/2023]
Abstract
STUDY DESIGN A retrospective study. OBJECTIVE The aim of this study was to clarify preoperative radiographic predictors associated with the development of subaxial subluxation (SAS) after surgery. BACKGROUND The incidence of atlantoaxial fusion for atlantoaxial instability has been increasing. SAS can develop after surgery despite atlantoaxial fusion with the optimal C1-C2 angle. We hypothesized that preoperative discordant angular contribution in the upper and subaxial cervical spine is associated with the occurrence of postoperative SAS. MATERIALS AND METHODS Patients who underwent surgery for atlantoaxial instability with a minimum 5-year follow-up and control participants were included. The O-C2 angle, C2 slope (C2S), C2-C7 cervical lordosis (CL), and T1 slope (T1S) were measured. We focused on the angular contribution ratio in the upper cervical spine to the whole CL, and the preoperative C2/T1S ratio was defined as the ratio of C2S to T1S. RESULTS Twenty-seven patients (SAS=11, no-SAS=16; mean age, 60.7 y old; 77.8% female; mean follow-up duration, 6.8 y) and 23 demographically matched control participants were enrolled. The SAS onset was at 4.7 postoperative years. Preoperatively, the O-C2 angle, C2-C7 CL, and T1S were comparable between the SAS, no-SAS, and control groups. The preoperative C2S and C2/T1S ratio were smaller in the SAS group than in the no-SAS or control group (C2S, 11.0 vs. 18.4 vs. 18.7 degrees; C2/T1S ratio, 0.49 vs. 0.77 vs. 0.78, P <0.05). The receiver operating characteristic curve analysis demonstrated that the C2/T1S ratio had higher specificity and similar sensitivity as a predictor of postoperative SAS than C2S (specificity: 0.90 vs. 0.87; sensitivity: 0.73 vs. 0.73). The estimated cutoff values of the C2S and C2/T1S ratio were 14 degrees and 0.58, respectively. CONCLUSIONS The preoperative C2/T1S ratio was closely associated with postoperative SAS. Patients with a C2/T1S ratio <0.58 were at a high risk of SAS after atlantoaxial fusion. LEVEL OF EVIDENCE Level 4.
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Affiliation(s)
- Eiji Takasawa
- Department of Orthopaedic Surgery, Gunma University Graduate School of Medicine, Maebashi, Gunma Prefecture, Japan
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Parikh SN, Rajdev N. Patients with bilateral patellar instability have multiple and symmetric risk factors in each knee. Knee Surg Sports Traumatol Arthrosc 2023; 31:5299-5305. [PMID: 37735205 DOI: 10.1007/s00167-023-07569-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/02/2023] [Accepted: 09/02/2023] [Indexed: 09/23/2023]
Abstract
PURPOSE Bilateral involvement is common in patients with patellar instability. The management of bilateral patellar instability is associated with increased complication rate. The higher complication rate in this cohort may be related to the presence of underlying anatomic risk factors. The purpose of the study was to evaluate the presence and side-to-side differences in risk factors between knees in bilateral patellar instability. METHODS In a retrospective study (2008-2017), demographic information, characteristics of patellar dislocation and anatomic risk factors on MRI (trochlear dysplasia, patellar height, tibial tubercle lateralization, patellar tilt, sulcus angle, bump height) were evaluated in both knees of all patients (n = 32, 15 males and 17 females) with bilateral patellar instability. The risk factors were analyzed based on established cut off values and were compared between gender, laterality and more symptomatic (index) knee. Knee symmetry and absolute differences between risk factors for both knees were analyzed. RESULTS The mean age of 32 patients was 14.6 ± 2.3 years. Of the 4 major anatomic risk factors, the most common were trochlear dysplasia in 59/64 (92.1%) knees and patella alta in 51/64 (79.7%) knees. Tibial tubercle lateralization was the least common risk factor being present in 8/64 (12.5%) knees. Of 64 knees, 55 (85.9%) had 2 or more risk factors and 30 (46.8%) had 3 or all 4 risk factors present. There were no significant differences in risk factors based on gender, laterality or index knee. There was symmetry between paired knees for 31/32 (96.8%) patients for trochlear depth, 29/32 (90.6%) for patellar tilt, 27/32 (84.3%) for TT-TG distance and 25/32 (78.1%) for patellar height. There were no significant differences in absolute measurements between knees for any of the risk factors. CONCLUSION Patients with bilateral instability had multiple risk factors, with trochlear dysplasia being the most common and increased TT-TG distance being the least common. Majority of patients had 2 or more risk factors and about half had 3 or 4 risk factors in each knee. There was symmetry between paired knees for each risk factor without any significant differences between the index knee compared to the contralateral knee. LEVEL OF EVIDENCE Level III.
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Affiliation(s)
- Shital N Parikh
- Cincinnati Children's Hospital Medical Center, 3333 Burnet Ave, Cincinnati, OH, 45229, USA.
| | - Neil Rajdev
- University of Cincinnati, Cincinnati, OH, USA
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Dwi Damayanthi E, Pineda T, Maruli Tua Lubis A, Arioharjo Utoyo G, Fi Ahsani Nur Alaina I. Sulcus deepening trochleoplasty versus bereiter trochleoplasty for high grade trochlear dysplasia: A systematic review and meta-analysis for clinical outcome and recurrent instability. Knee 2023; 45:147-155. [PMID: 37925805 DOI: 10.1016/j.knee.2023.10.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/10/2023] [Revised: 09/07/2023] [Accepted: 10/03/2023] [Indexed: 11/07/2023]
Abstract
BACKGROUND Trochlear dysplasia is a condition in which the femoral trochlea has an abnormal shape and function. Trochleoplasty aims to change the shape of the trochlea in order to stabilize an unstable patella. This study compared clinical outcomes and recurrent instability after surgery between sulcus deepening trochleoplasty (Lyon) and Bereiter trochleoplasty in patients with high-grade trochlear dysplasia. METHODS We conducted a meta-analysis comparing Bereiter and Lyon trochleoplasty based on PRISMA guidelines regarding clinical outcome and recurrent instability for high-grade trochlear dysplasia. Searching on five databases, we found 11 eligible studies with a total of 520 subjects to be analysed. Studies were qualitatively and quantitatively evaluated using Review Manager 5.4 or equivalent. RESULTS Both techniques showed no differences in sulcus angle, return-to-sport rate, and satisfactory rate. The IKDC and Kujala scores showed good outcomes but were not significantly different. IKDC score was not different after analysis between Bereiter and Lyon techniques. The pooled improvement of IKDC score on both subgroups was 24.39 (95% CI 21.14-27.65). A pooled analysis of 10 studies found that the Kujala score did not differ between groups with Bereiter and Lyon techniques. The total pooled mean difference of both groups was 25.87 (95% CI 21.70-30.05). CONCLUSION None of the techniques analysed highlighted an absolute superiority. Clinical relevance showed both techniques have good clinical outcomes, fewer complications, and recurrent instability for high-grade trochlear dysplasia.
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Affiliation(s)
- Essy Dwi Damayanthi
- Departement of Orthopaedic and Traumatology, Ulin General Hospital, Faculty of Medicine Universitas Lambung Mangkurat, Banjarmasin, Indonesia
| | - Tomas Pineda
- Department of Orthopaedic, Hospital El Carmen, Santiago de Chile, Chile
| | - Andri Maruli Tua Lubis
- Departement of Orthopaedic and Traumatology Cipto Mangunkusumo Hospital, Faculty Of Medicine Universitas Indonesia, Jakarta, Indonesia
| | - Ghuna Arioharjo Utoyo
- Departement of Orthopaedic and Traumatology, Hasan Sadikin Hospital, Faculty of Medicine Universitas Padjadjaran, Bandung, Indonesia
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Pineda T, Dejour D. Inconsistent repeatability of the Dejour classification of trochlear dysplasia due to the variability of imaging modalities: a systematic review. Knee Surg Sports Traumatol Arthrosc 2023; 31:5707-5720. [PMID: 37919443 DOI: 10.1007/s00167-023-07612-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/08/2023] [Accepted: 09/28/2023] [Indexed: 11/04/2023]
Abstract
PURPOSE The purpose of this systematic review was to critically assess the quality of papers that report on the intra- and inter-observer repeatability of the Dejour classification for trochlear dysplasia, and to identify the possible causes for poor repeatability. METHODS Two authors independently conducted an electronic search (four databases) on 8 February 2023 for studies (English or French) that assessed trochlear dysplasia classifications on imaging of skeletally mature participants. Exclusion criteria were reviews of clinical studies, conference proceedings, or editorials. After title, abstract, and full-text screening, characteristics of eligible studies were tabulated (author, year, journal, study design, cohort characteristics, and intra- and/or inter-observer agreement coefficients). The methodological quality of studies was assessed using the Joanna Briggs Institute (JBI) checklist for analytical cross-sectional studies. Authors analysed three components of the included studies: (1) classifications based on true lateral radiographs and slice imaging; (2) dysplasia graded into Type A vs B vs C vs D and 3) coefficients of intra- and/or inter-observer agreement. RESULTS The electronic search returned 3,178 references, and after removal of duplicates and irrelevant studies, ten were eligible for data extraction. A second search (31 July 2023) yielded one additional study. Eight studies did not include lateral radiographs, two studies did not explicitly state if radiographs were true lateral views, and one used true lateral radiographs in isolation. Classification of trochlear dysplasia into A vs B vs C vs D using different imaging modalities resulted in moderate to near-perfect intra-observer agreement, and slight to near-perfect inter-observer agreement. Studies distinguished between moderate and severe dysplasia using a variety of combinations: A vs B/C/D, A/B vs C/D and A/C vs B/D. CONCLUSION This systematic review revealed that the Dejour classification remains the most widely used to assess trochlear dysplasia and that the majority of studies that assessed the reliability of the Dejour classification, reported moderate to near-perfect inter-observer agreement; however, pooling of results for comparison among the included studies was inappropriate due to substantial variation in imaging protocols and non-standardised criteria to distinguish severe from moderate dysplasia. LEVEL OF EVIDENCE Level IV. TRIAL REGISTRY The PROSPERO registration number is CRD42023386731.
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Affiliation(s)
- Tomas Pineda
- Lyon-Ortho-Clinic, Clinique de La Sauvegarde, 29 Avenue des Sources, 69009, Ramsay Santé, Lyon, France
| | - David Dejour
- Lyon-Ortho-Clinic, Clinique de La Sauvegarde, 29 Avenue des Sources, 69009, Ramsay Santé, Lyon, France
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Mabrouk A, Olson CP, Tagliero AJ, Larson CM, Wulf CA, Kennedy NI, LaPrade RF. Reference standards for stress radiography measurements in knee ligament injury and instability: a systematic review. Knee Surg Sports Traumatol Arthrosc 2023; 31:5721-5746. [PMID: 37923947 DOI: 10.1007/s00167-023-07617-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/01/2023] [Accepted: 09/28/2023] [Indexed: 11/06/2023]
Abstract
PURPOSE Stress radiographs are an easily accessible, cost-effective tool in the evaluation of acute and chronic ligament knee injuries. Stress radiographs provide an objective, quantifiable, and functional assessment of the injured ligament and can be a useful adjunct when planning surgical management and to objectively assess postoperative outcomes. This study aimed to review the literature reporting on stress radiographic techniques in evaluating knee ligament injury and instability and propose thresholds for interpreting stress radiography techniques. METHODS The following three databases, OVID MEDLINE, the EMBASE library, and the Cochrane Controlled Trials Register, were systematically searched on January 23, 2023, for studies published from January 1970 to January 2023. The search extended to the reference lists of all relevant studies and orthopedic journals. Included studies were those that described a stress technique for the diagnosis of knee ligament injury; studies that reported a description or comparison of the accuracy and/or reliability of one or several stress radiography techniques, or studies that reported a comparison with alternative diagnostic modalities. RESULTS Sixteen stress radiography techniques were reported for assessing the ACL with stress applied in the anterior plane, 10 techniques for assessing the PCL with stress applied in the posterior plane, 3 techniques for valgus stress, and 4 techniques for varus stress. The Telos device was the most commonly used stress device in the ACL and PCL studies. There was no consensus on the accuracy and reliability of stress radiography techniques for the diagnosis of any knee ligament injury. Stress radiography techniques were compared with alternative diagnostic techniques including instrumented arthrometry, MRI, and physical examination in 18 studies, with variability in the advantages and disadvantages of stress radiography techniques and alternatives. Analysis of results pooled from different studies demonstrated average delta gapping in knees with a completely injured ligament compared to the normal contralateral knee as per the following: for the ACL 4.9 ± 1.4 mm; PCL 8.1 ± 2.5 mm; MCL 2.3 ± 0.05 mm; and the FCL 3.4 ± 0.2 mm. CONCLUSION Despite heterogeneity in the available literature with regard to stress examination techniques and device utilization, the data support that stress radiography techniques were accurate and reliable when compared to numerous alternatives in the diagnosis of acute and chronic knee ligament injuries. The present study also provides average increased ipsilateral compartment gapping/translation for specific knee ligament injuries based on the best available data. These values provide a reference standard for the interpretation of stress radiography techniques, help to guide surgical decision-making, and provide benchmark values for future investigations. LEVEL OF EVIDENCE III.
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Affiliation(s)
| | - Conner P Olson
- Twin Cities Orthopedics, 4010 W 65th Street, Edina, MN, 55455, USA
| | | | - Chris M Larson
- Twin Cities Orthopedics, 4010 W 65th Street, Edina, MN, 55455, USA
| | - Corey A Wulf
- Twin Cities Orthopedics, 4010 W 65th Street, Edina, MN, 55455, USA
| | | | - Robert F LaPrade
- Twin Cities Orthopedics, 4010 W 65th Street, Edina, MN, 55455, USA.
- University of Virginia, Charlottesville, VA, USA.
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Zhang JK, Dibble CF, Cashin J, Hajji S, Dorward I, Hawasli AH. Treatment of sacroiliac joint laxity-induced coronal imbalance with the kickstand rod technique. Br J Neurosurg 2023; 37:1732-1737. [PMID: 33612027 DOI: 10.1080/02688697.2021.1887452] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2019] [Accepted: 02/04/2021] [Indexed: 10/22/2022]
Abstract
BACKGROUND Considerations of the sacroiliac joint (SIJ) and its role in causing lower back and limb pain have taken a secondary role ever since Mixter and Barr's hallmark article in 1934 on the herniated nucleus pulposus. However, recent literature has highlighted the contribution of sacroiliac joint degeneration in the development of failed back surgery syndrome (FBSS), especially in patients undergoing lumbar or lumbosacral spinal fusion surgeries. Many reports have studied the anatomy, physiology, and clinical significance of the sacroiliac joint, but none have linked its dysfunction with other spinal deformities. CASE DESCRIPTION A 63-year-old female with a history of multiple complex instrumented spinal fusions presented to our institution with progressive leftward coronal imbalance despite successful arthrodesis from T3 through S1. She was initially treated with decompression and reimplantation, but adjacent segment disease at the SIJ led to laxity, distal failure, and a worsening coronal deformity. A mechanical fall after her decompression surgery led to a dramatically increased coronal imbalance, which was ultimately treated using Lenke's kickstand rod technique. At 3.5 years follow up, the patient's coronal balance remains stable. CONCLUSION Few studies have related SIJ degeneration and laxity with spinal deformity. Our case describes SIJ degeneration that evolved to joint laxity, which ultimately produced a leftward coronal imbalance according to the adjacent segment disease mechanism. Additionally, we describe the use of a kickstand rod to effectively correct the coronal imbalance, reduce pain levels, promote SIJ arthrodesis, and prevent further SIJ-related issues without significant complications over 3 years post-operation.
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Affiliation(s)
- Justin K Zhang
- Department of Neurosurgery, Washington University School of Medicine, St. Louis, MO, USA
| | - Christopher F Dibble
- Department of Neurosurgery, Washington University School of Medicine, St. Louis, MO, USA
| | - John Cashin
- Department of Neurosurgery, Washington University School of Medicine, St. Louis, MO, USA
| | - Samer Hajji
- Department of Neurosurgery, Washington University School of Medicine, St. Louis, MO, USA
| | - Ian Dorward
- Department of Neurosurgery, Washington University School of Medicine, St. Louis, MO, USA
| | - Ammar H Hawasli
- Department of Neurosurgery, Washington University School of Medicine, St. Louis, MO, USA
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Antuña SA, Raganato R, Dopico LR, Barco R. Influence of Coronoid fixation on the functional outcome and rate of complications in surgically treated acute complex elbow instability. Injury 2023; 54 Suppl 7:110892. [PMID: 38225156 DOI: 10.1016/j.injury.2023.110892] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/10/2022] [Revised: 06/04/2023] [Accepted: 06/11/2023] [Indexed: 01/17/2024]
Abstract
INTRODUCTION Fractures of the coronoid commonly present in elbow fracture-dislocations. Despite the evidence that the coronoid plays an important role in elbow stability, there is still controversy on which fractures should be surgically fixed. The aim of this study is to compare the clinical outcomes and rate of complications of patients with elbow fracture-dislocations in which the coronoid was fixed or left untreated. MATERIALS AND METHODS Thirty-nine patients with an elbow fracture-dislocation involving a coronoid fracture were prospectively followed for an average of 90 months (range 24-190). According to Morrey´s classification there were 22 type II and 8 type III. Nine patients had an anteromedial fracture of the coronoid. In 24 patients the coronoid was repaired (suture fixation in 9, screws fixation in 10 and plate fixation in 5) and in 15 patients the coronoid was not fixed. In 18 patients the radial head was replaced and in 8 patients it was fixed. All patients underwent repair of the lateral ligament complex. Clinical evaluation was performed with the MEPS. Radiographically, the rate of coronoid nonunion was specifically analyzed. Postoperative neurological complications were recorded. RESULTS At the most recent follow up, the average arc of flexion-extension was 120° (range 70°-140°) with a mean MEPS of 90 (range 25-100). No statistically significant differences were found in the MEPS and flexion-extension arc between the patients in whom synthesis was performed (117° ROM, and 89 MEPS) and those in whom it was not (122° ROM, 94 MEPS) (p = 0.42; p = 0.34). Coronoid fracture healing could be assessed in 36 patients: in 19 patients the coronoid was radiographically healed, and in 17 a nonunion was present, with no difference in the final clinical outcome between both groups. Nine patients, 6 of whom had undergone coronoid fixation, had a neurological complication related to the ulnar nerve. CONCLUSIONS Coronoid fractures affecting around 50% of its height can be treated without internal fixation as long as the rest of the osteo-ligamentous structures are adequately repaired. Osteosynthesis of the coronoid through a medial approach may carry a non-negligible risk of associated neurological injury.
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Affiliation(s)
- Samuel A Antuña
- Shoulder & Elbow Unit, Hospital Universitario La Paz, Universidad Autónoma de Madrid, Madrid, Spain.
| | - Riccardo Raganato
- Shoulder & Elbow Unit, Hospital Universitario La Paz, Universidad Autónoma de Madrid, Madrid, Spain
| | - Lucia Ros Dopico
- Rehabilitation and Physical therapy Department, Hospital Universitario La Paz, Universidad Autónoma de Madrid, Madrid, Spain
| | - Raúl Barco
- Shoulder & Elbow Unit, Hospital Universitario La Paz, Universidad Autónoma de Madrid, Madrid, Spain
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Haemmerli J, Ferdowssian K, Wessels L, Mertens R, Hecht N, Woitzik J, Schneider UC, Bayerl SH, Vajkoczy P, Czabanka M. Comparison of intraoperative CT- and cone beam CT-based spinal navigation for the treatment of atlantoaxial instability. Spine J 2023; 23:1799-1807. [PMID: 37619869 DOI: 10.1016/j.spinee.2023.08.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/20/2023] [Revised: 07/18/2023] [Accepted: 08/13/2023] [Indexed: 08/26/2023]
Abstract
BACKGROUND CONTEXT Due to the complexity of neurovascular structures in the atlantoaxial region, spinal navigation for posterior C1-C2 instrumentation is nowadays a helpful tool to increase accuracy of surgery and safety of patients. Many available intraoperative navigation devices have proven their reliability in this part of the spine. Two main imaging techniques are used: intraoperative CT (iCT) and cone beam computed tomography (CBCT). PURPOSE Comparison of iCT- and CBCT-based technologies for navigated posterior instrumentation in C1-C2 instability. STUDY DESIGN Retrospective study. PATIENT SAMPLE A total of 81 consecutive patients from July 2014 to April 2020. OUTCOME MEASURES Screw accuracy and operating time. METHODS Patients with C1-C2 instability received posterior instrumentation using C2 pedicle screws, C1 lateral mass or pedicle screws. All screws were inserted using intraoperative imaging either using iCT or CBCT systems and spinal navigation with autoregistration technology. Following navigated screw insertion, a second intraoperative scan was performed to assess the accuracy of screw placement. Accuracy was defined as the percentage of correctly placed screws or with minor cortical breach (<2 mm) as graded by an independent observer compared to misplaced screws. RESULTS A total of 81 patients with C1-C2 instability were retrospectively analyzed. Of these, 34 patients were operated with the use of iCT and 47 with CBCT. No significant demographic difference was found between groups. In the iCT group, 97.7% of the C1-C2 screws were correctly inserted; 2.3% showed a minor cortical breach (<2 mm); no misplacement (>2 mm). In the CBCT group, 98.9% of screws were correctly inserted; no minor pedicle breach; 1.1% showed misplacement >2 mm. Accuracy of screw placement demonstrated no significant difference between groups. Both technologies allowed sufficient identification of screw misplacement intraoperatively leading to two screw revisions in the iCT and three in the CBCT group. Median time of surgery was significantly shorter using CBCT technology (166.5 minutes [iCT] vs 122 minutes [CBCT]; p<.01). CONCLUSIONS Spinal navigation using either iCT- or CBCT-based systems with autoregistration allows safe and reliable screw placement and intraoperative assessment of screw positioning. Using the herein presented procedural protocols, CBCT systems allow shorter operating time.
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Affiliation(s)
- Julien Haemmerli
- Department of Neurosurgery, Charité - Universitätsmedizin Berlin, Charitéplatz 1, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin 10117, Germany
| | - Kiarash Ferdowssian
- Department of Neurosurgery, Charité - Universitätsmedizin Berlin, Charitéplatz 1, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin 10117, Germany
| | - Lars Wessels
- Department of Neurosurgery, Charité - Universitätsmedizin Berlin, Charitéplatz 1, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin 10117, Germany
| | - Robert Mertens
- Department of Neurosurgery, Charité - Universitätsmedizin Berlin, Charitéplatz 1, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin 10117, Germany
| | - Nils Hecht
- Department of Neurosurgery, Charité - Universitätsmedizin Berlin, Charitéplatz 1, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin 10117, Germany
| | - Johannes Woitzik
- Department of Neurosurgery, Charité - Universitätsmedizin Berlin, Charitéplatz 1, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin 10117, Germany
| | - Ulf C Schneider
- Department of Neurosurgery, Charité - Universitätsmedizin Berlin, Charitéplatz 1, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin 10117, Germany
| | - Simon H Bayerl
- Department of Neurosurgery, Charité - Universitätsmedizin Berlin, Charitéplatz 1, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin 10117, Germany
| | - Peter Vajkoczy
- Department of Neurosurgery, Charité - Universitätsmedizin Berlin, Charitéplatz 1, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin 10117, Germany.
| | - Marcus Czabanka
- Department of Neurosurgery, Charité - Universitätsmedizin Berlin, Charitéplatz 1, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin 10117, Germany
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Fujii S, Tanabe T, Miaki H, Kosaka M. Relationship between shoulder rotation deficit and elbow instability in healthy baseball players. J Sports Med Phys Fitness 2023; 63:1317-1323. [PMID: 37791827 DOI: 10.23736/s0022-4707.23.15143-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/05/2023]
Abstract
BACKGROUND Elbow valgus instability is a risk factor for elbow medial collateral ligament injury. This study aimed to investigate the relationship between shoulder range of motion and elbow valgus instability using an ultrasound imaging system. A questionnaire and ultrasound examination were used for the study. METHODS Thirty-seven high school baseball players (15-18 years) with no history of shoulder or elbow disorders were included. Shoulder range of motion was measured at 90° of adduction, 10° of horizontal adduction, and 90° of elbow flexion in the supine resting position. To evaluate elbow valgus instability, an ultrasound imaging system was used to measure the shortest distance from the apex of the ulnar capitulum to the humeral glenoid with 2.5 kg of valgus stress applied to the ulnohumeral joint. The presence of elbow valgus instability was determined by the value obtained by subtracting the joint space distance on the non-throwing side from that on the throwing side. Student's t-test was applied for the range of shoulder rotation between the two groups, and Pearson's correlation coefficient was used for the relationship between the range of shoulder rotation and elbow instability. Statistical significance was set at 5%. RESULTS The range of internal and total shoulder rotation was significantly lower in participants with elbow valgus instability than those without elbow valgus instability (P<0.001). In addition, a significant moderate correlation was found in the range of internal (r=0.608, P<0.001) and total shoulder (r=0.479, P<0.001) rotations. CONCLUSIONS Decreased shoulder range of motion may affect elbow valgus instability.
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Affiliation(s)
- Shohei Fujii
- Division of Rehabilitation, Department of Physical Therapy, Fukui General Hospital, Fukui, Japan -
- Kanazawa University Graduate School of Pharmaceutical Sciences and Health Sciences, Department of Health Sciences, Kanazawa, Japan -
| | - Toru Tanabe
- Division of Rehabilitation, Department of Physical Therapy, Fukui General Hospital, Fukui, Japan
- Kanazawa University Graduate School of Pharmaceutical Sciences and Health Sciences, Department of Health Sciences, Kanazawa, Japan
| | - Hiroichi Miaki
- Kanazawa University Graduate School of Pharmaceutical Sciences and Health Sciences, Department of Health Sciences, Kanazawa, Japan
| | - Masahiro Kosaka
- Department of Orthopedic Surgery, Fukui General Hospital, Fukui, Japan
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Diez Sánchez B, Barco R, Antuña SA. Radial head replacement for acute complex elbow instability: a long-term comparative cohort study of 2 implant designs. J Shoulder Elbow Surg 2023; 32:2581-2589. [PMID: 37619928 DOI: 10.1016/j.jse.2023.07.023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/18/2023] [Revised: 07/11/2023] [Accepted: 07/21/2023] [Indexed: 08/26/2023]
Abstract
BACKGROUND Radial head fractures not amenable to reconstruction should be treated by radial head replacement (RHR) when there is associated elbow or forearm instability. There are multiple RHR designs with different philosophies, but 2 of the most commonly used implants include the anatomic press-fit radial head system and the loose-fit metallic spacer. There is little information available specifically comparing the long-term clinical and radiographic outcomes of these 2 systems. The objective of this study was to compare the long-term clinical and radiologic outcomes of 2 RHR designs in the context of complex acute elbow instability. MATERIALS AND METHODS Ninety-five patients with an average age of 54 years (range, 21-87 years) underwent an acute RHR (46 press-fit Acumed anatomic and 49 loose-fit Evolve metallic spacer) and were prospectively followed for an average of 61 months (range, 24-157 months). There were 34 terrible triads; 36 isolated RH fractures with medial, lateral, or longitudinal instability; and 25 RH fractures associated with a proximal ulnar fracture. Clinical outcome and disability were evaluated with the Mayo Elbow Performance Score (MEPS), the Oxford Elbow Score, and the Disabilities of the Arm, Shoulder, and Hand (DASH) score. Pain and satisfaction were assessed using a visual analog scale. Radiographic analysis included presence of loosening, bone loss, and overstuffing related to the RHR. RESULTS Eight patients with an anatomic RHR (2 with overstuffing, 3 for stiffness, and 3 with loose implants) and 1 patient with a spacer (with stiffness) required implant removal. There were no significant differences between spacer RHR and anatomic RHR in arc of motion (120° vs. 113°, P = .14), pain relief (1 vs. 1.7, P = .135), MEPS (94 vs. 88; P = .07), Oxford Elbow Score (42.3 vs. 42.2, P = .4), or DASH score (12.2 vs. 14.4, P = .5). However, patients with a spacer RHR were significantly more satisfied (9 vs. 7.7; P = .004) than those with an anatomic implant. Radiographically, 19 anatomic implants had significant proximal bone loss and 10 showed complete lucent lines around the stem. Lucent lines were common around the spacer RHR. These radiographic changes were not always related to worse clinical outcomes. CONCLUSION Both the anatomic and spacer RHR designs can provide good clinical long-term outcomes. However, patients with a spacer showed a higher degree of satisfaction and those with an anatomic press-fit RHR had a higher revision rate, with radiographic changes that warrant continued follow-up.
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Affiliation(s)
| | - Raúl Barco
- Upper Limb Unit, Hospital Universitario La Paz, Madrid, Spain
| | - Samuel A Antuña
- Upper Limb Unit, Hospital Universitario La Paz, Madrid, Spain.
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Kneafsey SL, Russell SP, Power FR, Heffernan EJ, Hurson C. A simple method to rapidly assess the tibial tuberosity-trochlear groove distance using computed tomography. Ir J Med Sci 2023; 192:2839-2843. [PMID: 36787029 PMCID: PMC10692259 DOI: 10.1007/s11845-023-03302-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2022] [Accepted: 01/29/2023] [Indexed: 02/15/2023]
Abstract
BACKGROUND The tibial tuberosity-trochlear groove (TTTG) distance is used to assess patellofemoral instability (PFI) and the likelihood of the development of patellofemoral disorders. The current gold standard in the assessment of the TTTG is computed tomography (CT) or magnetic resonance imaging (MRI). The current image software used for viewing these CT images does not allow for easy assessment of the TTTG. AIMS This study presents a simple method to measure the TTTG on any image software, utilizing easily available and affordable stationary. METHODS Four consecutive patients with no known knee pathologies were selected from recent studies at our institution. Their TTTGs were measured using this study's method and validated using the standard, freely available image analysis software Fiji. Pre-defined anatomical landmarks were located and marked using adhesive pieces of paper. The TTTG was defined as the distance between parallel lines through the apex of the tibial tuberosity and trough of the trochlear groove, where each of these lines is perpendicular to the Dorsal Condylar Line. RESULTS The TTTG measured using this study's method was found to be in agreement with the measurements made using Fiji software. CONCLUSIONS This study demonstrates that the TTTG can be simply and quickly assessed using readily available and affordable stationery, without the need for expensive or complex secondary analysis software. This could allow for the assessment of PFI in the outpatient clinic whilst the patient is present, offering valuable assistance to the orthopaedic surgeon in clinical decision making.
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Affiliation(s)
- Simone L Kneafsey
- Department of Trauma and Orthopaedics, St. Vincent's University Hospital, Dublin, Ireland.
- University College Dublin, Dublin, Ireland.
| | - Shane P Russell
- Department of Trauma and Orthopaedics, St. Vincent's University Hospital, Dublin, Ireland
| | - Fiachra R Power
- Department of Trauma and Orthopaedics, St. Vincent's University Hospital, Dublin, Ireland
| | - Eric J Heffernan
- Department of Radiology, St. Vincent's University Hospital, Dublin, Ireland
| | - Conor Hurson
- Department of Trauma and Orthopaedics, St. Vincent's University Hospital, Dublin, Ireland
- University College Dublin, Dublin, Ireland
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Zhao B, Sun Q, Xu X, Liu Y, Zhao Y, Gao Y, Zhou J. Comparison of arthroscopic and open Brostrom-Gould surgery for chronic ankle instability: a systematic review and meta-analysis. J Orthop Surg Res 2023; 18:866. [PMID: 37964306 PMCID: PMC10644443 DOI: 10.1186/s13018-023-04292-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/28/2023] [Accepted: 10/15/2023] [Indexed: 11/16/2023] Open
Abstract
BACKGROUND Approximately 20% of acute ankle sprains progress to chronic lateral ankle instability (CLAI) requiring surgical intervention. There has been growing interest among surgeons regarding whether arthroscopic techniques can replace open Brostrom-Gould surgery in treating CLAI. The purpose of this study was to pool the results of multiple studies comparing the treatment effects of these two fixation approaches. METHODS Our study involved thorough searches across multiple electronic databases, including PubMed, Cochrane, Embase, and Web of Science, to identify all relevant publications on CLAI that were repaired using the arthroscopic or open Broström-Gould technique. Through a comprehensive meta-analysis, we evaluated several outcomes, including post-operative function, radiological measurements, complications, and time efficiency. RESULT A total of 686 patients from 11 studies were included in the analysis. Among them, 351 patients underwent open repair, and 335 underwent arthroscopic Brostrom-Gould surgery. The present study revealed that arthroscopic and open Brostrom-Gould techniques demonstrated no significant differences in talar tilt, talar anterior translation, complication rate, and time to return to previous level of activity. Furthermore, no significant differences were observed in AOFAS, K-P, VAS, and Tegner scores at the 2-year follow-up. However, significant differences were noted between the two surgical approaches in terms of early weight-bearing (WMD = - 1.33 weeks, 95% CI = [- 1.91, - 0.76], P = 0.17, I2 = 40%), as well as AOFAS scores (WMD = 1.00, 95% CI = [0.05, 1.95], P = 0.73, I2 = 0%), K-P scores (WMD = 1.57, 95% CI = [0.49, 2.64], P = 0.15, I2 = 47%), and VAS scores (WMD = - 0.15, 95% CI = [- 0.60, 0.29], P < 0.08, I2 = 61%) within the first postoperative year. CONCLUSIONS Our findings support that arthroscopic repair yields comparable outcomes to open surgery. Consequently, we advocate for adopting arthroscopic repair as a preferred alternative to the conventional open Broström-Gould procedure for treating chronic lateral ankle instability.
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Affiliation(s)
- Binzhi Zhao
- Department of Orthopedic Surgery, Beijing Chaoyang Hospital, Capital Medical University, 8 Gongren Tiyuchang Nanlu, Chaoyang District, Beijing, 100020, People's Republic of China
| | - Qingnan Sun
- Department of Orthopedic Surgery, Beijing Chaoyang Hospital, Capital Medical University, 8 Gongren Tiyuchang Nanlu, Chaoyang District, Beijing, 100020, People's Republic of China
| | - Xiaopei Xu
- Department of Orthopedic Surgery, Beijing Chaoyang Hospital, Capital Medical University, 8 Gongren Tiyuchang Nanlu, Chaoyang District, Beijing, 100020, People's Republic of China
| | - Yang Liu
- Department of Orthopedic Surgery, Beijing Chaoyang Hospital, Capital Medical University, 8 Gongren Tiyuchang Nanlu, Chaoyang District, Beijing, 100020, People's Republic of China
| | - Yanrui Zhao
- Department of Orthopedic Surgery, Beijing Chaoyang Hospital, Capital Medical University, 8 Gongren Tiyuchang Nanlu, Chaoyang District, Beijing, 100020, People's Republic of China
| | - Yulin Gao
- Department of Orthopedic Surgery, Beijing Chaoyang Hospital, Capital Medical University, 8 Gongren Tiyuchang Nanlu, Chaoyang District, Beijing, 100020, People's Republic of China
| | - Junlin Zhou
- Department of Orthopedic Surgery, Beijing Chaoyang Hospital, Capital Medical University, 8 Gongren Tiyuchang Nanlu, Chaoyang District, Beijing, 100020, People's Republic of China.
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Mu X, Deng H, Wei X, Wei J, Caggiari G. Do Modic changes contribute to lumbar instability or other way around? A retrospective study based on their types, extents, and affected lumbar segments. BMC Musculoskelet Disord 2023; 24:879. [PMID: 37951876 PMCID: PMC10638783 DOI: 10.1186/s12891-023-07011-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/27/2023] [Accepted: 11/02/2023] [Indexed: 11/14/2023] Open
Abstract
BACKGROUND Which types of Modic changes (MCs) and whether or how specific factors associated to MCs work on lumbar instability have yet to be well understood. The purpose of this study was to investigate the influences of the types of MCs, the extent of MCs lesion involvement, and different lumbar levels involved by MCs on lumbar instability. METHODS This retrospective study included 263 adult subjects with MCs who underwent lumbar X-ray examinations in the neutral, flexion, and extension positions. All patients who met our inclusion criteria were examined with 1.5 Tesla magnetic resonance units. Two experienced authors with more than three-year clinical experience independently evaluated and measured the subjects' radiographic images. The subgroup analysis was performed to detect the differences in subjects' baseline characteristics and lumbar segmental motions among three types of MCs, the extent of MCs lesion involvement and different lumbar levels involved by MCs. RESULTS There was a statistical difference in body mass index (BMI) between different involvement extent of MCs (p < 0.01), indicating that the subjects with high BMI are more likely to develop severe MCs. The subjects with Modic type 1 change (MC1) had a significant increase in lumbar angular motion than those with Modic type 2 change (MC2) and Modic type 3 change (MC3) (p < 0.01) and compared with MC3, a significant increase in lumbar translation motion was detected in subjects with MC1 and MC2 (p < 0.01). While, angular motion decreased, translation motion increased significantly as the extent of MCs lesion involvement aggravated (p < 0.01). However, there were no statistical differences in lumbar angular and translation motions between different lumbar levels involved by MCs (p > 0.05). CONCLUSIONS Higher BMI might be a risk factor for the development of severe MCs. MC1 and MC2 significantly contribute to lumbar instability. The extents of MCs lesion involvement are strongly associated with lumbar instability. However, different lumbar levels involved by MCs have little effect on lumbar stability.
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Affiliation(s)
- Xiaoping Mu
- Department of Spine Surgery, The People's Hospital of Guangxi Zhuang Autonomous Region, Guangxi Academy of Medical Sciences, No.6, Taoyuan Road, Nanning, 530021, China
| | - Hansheng Deng
- Department of Biomedical Sciences, University of Sassari, 07100, Sassari, Italy
- Orthopaedic Department, Sassari University Hospital, 07100, Sassari, Italy
- Shenzhen Children's Hospital of Shantou Medical University, Shenzhen, People's Republic of China
| | - Xiaodong Wei
- Department of Spine Surgery, The People's Hospital of Guangxi Zhuang Autonomous Region, Guangxi Academy of Medical Sciences, No.6, Taoyuan Road, Nanning, 530021, China
| | - Jianxun Wei
- Department of Spine Surgery, The People's Hospital of Guangxi Zhuang Autonomous Region, Guangxi Academy of Medical Sciences, No.6, Taoyuan Road, Nanning, 530021, China.
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Eckl L, Vetter P, Bellmann F, Imiolczyk JP, Moroder P, Scheibel M. Management of Acute High-Grade Acromioclavicular Joint Dislocations: Comparable Clinical and Radiological Outcomes After Bidirectional Arthroscopic-Assisted Stabilization With the Single Low-Profile Suture Button Technique Versus Double-Suture Button Technique. Arthroscopy 2023; 39:2283-2290. [PMID: 37230186 DOI: 10.1016/j.arthro.2023.05.015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/22/2022] [Revised: 05/08/2023] [Accepted: 05/11/2023] [Indexed: 05/27/2023]
Abstract
PURPOSE To compare the 2-year clinical and radiological outcomes of an arthroscopic-assisted bidirectional stabilization procedure using a single low-profile (LPSB) or double-suture button (DSB) technique with additional percutaneous acromioclavicular (AC) cerclage fixation for patients with acute high-grade AC joint dislocation. METHODS This retrospective cohort study compared male patients aged between 18 and 56 years with acute high-grade AC joint dislocation fixed with either a LPSB or DSB technique. Patients were examined at least 24 months after surgery. Subjective Shoulder Value (SSV), Taft (TF), and Acromioclavicular Joint Instability (ACJI) scores were evaluated. Coracoclavicular difference, ossification, AC joint osteoarthritis, and dynamic posterior translation (DPT) were assessed on bilateral anteroposterior stress radiographs and modified Alexander views. The revision rate due to implant conflict and duration of surgery were reported. Group outcome differences were analyzed using standardized hypothesis tests. RESULTS 28 patients aged 39.2 (LPSB) and 36.4 years (DSB) (P = .319; CI: -2.77-8.34) were eligible per cohort. The follow-up was 30.5 (LPSB) and 37.4 months (DSB) (P = .02; CI: -12.73-1.08). LPSB patients rated a significantly higher SSV (93.2% vs 81.9% [DSB]; P = .004). TF and ACJI scores were similar between the groups. Coracoclavicular difference markedly decreased from 12 mm to 3 mm for both cohorts (P < .001). Ossification was identified in over 85% in both cohorts (P = .160; CI -0.77-0.13) and osteoarthritis in 21.4% (LPSB) and 39.3% (DSB) (P = .150). Persistent DPT was found in around 30% for both cohorts (P = .561; CI -0.26-0.48). The revision rates were 0% (LPSB) and 7% (DSB) (P = .491). LPSB surgery was shorter (59.7 vs 71.5 mins [DSB]) (P = .011). CONCLUSIONS The results of the LPSB and DSB techniques with additional percutaneous AC cerclage fixation showed comparable outcomes with excellent clinical and satisfactory radiological results. The assessment of the subjective patient satisfaction was in favor of the LPSB technique and no postoperative revision event was observed following this procedure. LEVEL OF EVIDENCE Level III, retrospective comparative therapeutic trial.
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Affiliation(s)
- Larissa Eckl
- Shoulder and Elbow Surgery, Schulthess Clinic, Zurich, Switzerland
| | - Philipp Vetter
- Department of Trauma Surgery, University Hospital, Zurich, Switzerland
| | | | - Jan-Philipp Imiolczyk
- Department of Shoulder and Elbow Surgery, Center for Musculoskeletal Surgery, Charité-Universitaetsmedizin, Berlin, Germany
| | - Philipp Moroder
- Shoulder and Elbow Surgery, Schulthess Clinic, Zurich, Switzerland
| | - Markus Scheibel
- Shoulder and Elbow Surgery, Schulthess Clinic, Zurich, Switzerland; Department of Shoulder and Elbow Surgery, Center for Musculoskeletal Surgery, Charité-Universitaetsmedizin, Berlin, Germany.
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Gobbi RG, Cavalheiro CM, Giglio PN, Hinckel BB, Camanho GL. Patellar Tilt and Patellar Tendon-Trochlear Groove Angle Present the Optimum Magnetic Resonance Imaging Diagnostic Reliability for Patients With Patellar Instability. Arthroscopy 2023; 39:2339-2351. [PMID: 37116551 DOI: 10.1016/j.arthro.2023.04.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/12/2022] [Revised: 04/04/2023] [Accepted: 04/08/2023] [Indexed: 04/30/2023]
Abstract
PURPOSE To describe, in controls and in a population with patellar instability, magnetic resonance imaging values of measurements representing major associated factors for patellar instability (patellar height, trochlear dysplasia, and extensor mechanism alignment), as well as their cutoff values. METHODS In total, 323 knee magnetic resonance imaging scans, 142 with patellar instability and 181 controls without patellofemoral complaints (anterior cruciate, medial collateral ligament, meniscus ruptures or normal) were evaluated. Means, normality values in the control population, ideal cutoff values through receiver operating characteristic curves analysis, and interobserver reliability (intraclass correlation coefficient) were described for a series of measurements. RESULTS All measurements were statistically different in control and instability patients, except for the patellotrochlear index and tibial tuberosity to posterior cruciate ligament distance. The interobserver intraclass correlation coefficient was good or excellent (above 0.75) only for the patellotrochlear index, patellar tendon-trochlear groove (PTTG) angle, and patellar tilt. The optimal cutoff value for each measurement was: PTTG angle ≥25.3o with sensitivity (S) of 70% and specificity (E) of 89%, patellar tilt ≥16o (S: 69% and E: 84%), trochlear sulcus angle ≥153o (S: 75% and E: 76%), Carrillon ≤12.8o (S: 62% and E: 87%), PTTG distance ≥11mm (S: 71% and E: 78%), Caton-Deschamps index ≥1.23 (S: 72% and E: 76%) and trochlear bump ≥3.95 mm (S: 76% and E: 65%). CONCLUSIONS Caton-Deschamps index (≥1.23), trochlear sulcus angle (≥153o), ventral prominence of the trochlea (≥3.95 mm), PTTG distance (≥11 mm), PTTG angle (≥25.3o), Carrillon angle (≤12.8o), and patellar tilt (≥16o) presented better diagnostic performance for patellar instability. Patellotrochlear index and tibial tuberosity to posterior cruciate ligament distance were not related to patellar instability. The interobserver reliability of the factors related to patellar instability was excellent only for the PTTG angle and lateral patellar tilt. LEVEL OF EVIDENCE Level III, retrospective case-control study.
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Affiliation(s)
- Riccardo Gomes Gobbi
- Instituto de Ortopedia e Traumatologia, Hospital das Clinicas HCFMUSP, Faculdade de Medicina, Universidade de Sao Paulo, Sao Paulo, SP, Brazil; Hcor, São Paulo, Brazil.
| | - Camila Maftoum Cavalheiro
- Instituto de Ortopedia e Traumatologia, Hospital das Clinicas HCFMUSP, Faculdade de Medicina, Universidade de Sao Paulo, Sao Paulo, SP, Brazil
| | - Pedro Nogueira Giglio
- Instituto de Ortopedia e Traumatologia, Hospital das Clinicas HCFMUSP, Faculdade de Medicina, Universidade de Sao Paulo, Sao Paulo, SP, Brazil
| | - Betina Bremer Hinckel
- Department of Orthopaedic Surgery, William Beaumont Hospital, Royal Oak, Michigan, U.S.A
| | - Gilberto Luis Camanho
- Instituto de Ortopedia e Traumatologia, Hospital das Clinicas HCFMUSP, Faculdade de Medicina, Universidade de Sao Paulo, Sao Paulo, SP, Brazil
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Han J, Qian S, Lian J, Wu H, Zheng B, Wu X, Xu F, Wei S. Modified classifications and surgical decision-making process for chronic anterior talofibular ligament injuries based on the correlation of imaging studies and arthroscopic findings. Int Orthop 2023; 47:2683-2692. [PMID: 37477681 DOI: 10.1007/s00264-023-05896-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/22/2023] [Accepted: 07/05/2023] [Indexed: 07/22/2023]
Abstract
PURPOSE Surgical treatment of chronic ankle instability (CAI) typically includes ligament repair or reconstruction. Using preoperative ultrasonography or magnetic resonance imaging (MRI) to choose an appropriate arthroscopic procedure is still difficult. The aim of this study was to evaluate the correlation of imaging studies with arthroscopic findings and support the arthroscopic surgical decision-making process. METHODS One hundred twelve patients with chronic anterior talofibular ligament (ATFL) injuries were treated using the arthroscopic surgical decision-making process from November 2018 to August 2020. Preoperative imaging assessments using dynamic ultrasonography, MRI, and combined methods were applied to categorize the ATFL remnants into three quality grades ("good," "fair," and "poor"). Arthroscopic findings were classified into 6 major types (7 subtypes) and used to select an appropriate surgical procedure. Correlations between imaging studies, arthroscopic findings, and surgical methods were evaluated. Diagnostic parameters, clinical outcomes, and complications were also assessed. RESULTS There was a significant interobserver agreement in the evaluation of dynamic ultrasonography (0.954, P < 0.001), MRI (0.958, P < 0.001), and arthroscopy diagnosis (0.978, P < 0.001). There was a significant correlation between the modified imaging classifications, arthroscopic diagnostic types, and surgical procedures. The mean follow-up period was 33.58 ± 8.85 months. Significant improvements were documented in postoperative ankle functions when assessed with Karlson-Peterson scores and Cumberland Ankle Instability Tool scores. The risk of complications is also very low. CONCLUSION The modified classifications and surgical decision-making process based on dynamic ultrasonography, MRI, and arthroscopic findings, as proposed in this study, might help in selecting an appropriate arthroscopic surgical procedure for chronic ATFL injuries.
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Affiliation(s)
- Jing Han
- Department of Orthopaedics, General Hospital of Central Theater Command (Wuhan General Hospital of Guangzhou Command, previously), NO. 627, Wuluo Road, Wuhan, 430030, Hubei Province, People's Republic of China
| | - Shenglong Qian
- Department of Orthopaedics, General Hospital of Central Theater Command (Wuhan General Hospital of Guangzhou Command, previously), NO. 627, Wuluo Road, Wuhan, 430030, Hubei Province, People's Republic of China
| | - Junhong Lian
- Department of Orthopaedics, General Hospital of Central Theater Command (Wuhan General Hospital of Guangzhou Command, previously), NO. 627, Wuluo Road, Wuhan, 430030, Hubei Province, People's Republic of China
| | - Helin Wu
- Department of Orthopaedics, General Hospital of Central Theater Command (Wuhan General Hospital of Guangzhou Command, previously), NO. 627, Wuluo Road, Wuhan, 430030, Hubei Province, People's Republic of China
- The First Clinical Medical School of Southern Medical University, Guangzhou, Guangdong Province, People's Republic of China
| | - Boyu Zheng
- Department of Orthopaedics, General Hospital of Central Theater Command (Wuhan General Hospital of Guangzhou Command, previously), NO. 627, Wuluo Road, Wuhan, 430030, Hubei Province, People's Republic of China
- Wuhan University of Science and Technology, Wuhan, Hubei Province, People's Republic of China
| | - Xinchen Wu
- Department of Orthopaedics, General Hospital of Central Theater Command (Wuhan General Hospital of Guangzhou Command, previously), NO. 627, Wuluo Road, Wuhan, 430030, Hubei Province, People's Republic of China
- Hubei University of Medicine, Shiyan, Hubei Province, People's Republic of China
| | - Feng Xu
- Department of Orthopaedics, General Hospital of Central Theater Command (Wuhan General Hospital of Guangzhou Command, previously), NO. 627, Wuluo Road, Wuhan, 430030, Hubei Province, People's Republic of China
- The First Clinical Medical School of Southern Medical University, Guangzhou, Guangdong Province, People's Republic of China
| | - Shijun Wei
- Department of Orthopaedics, General Hospital of Central Theater Command (Wuhan General Hospital of Guangzhou Command, previously), NO. 627, Wuluo Road, Wuhan, 430030, Hubei Province, People's Republic of China.
- The First Clinical Medical School of Southern Medical University, Guangzhou, Guangdong Province, People's Republic of China.
- Wuhan University of Science and Technology, Wuhan, Hubei Province, People's Republic of China.
- Hubei University of Medicine, Shiyan, Hubei Province, People's Republic of China.
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Nakasa T, Ikuta Y, Sumii J, Nekomoto A, Kawabata S, Adachi N. MRI signal intensity ratio reflects the quality of the anterior talofibular and calcaneofibular ligaments in patients with chronic lateral ankle instability. J Orthop Sci 2023; 28:1331-1336. [PMID: 36336638 DOI: 10.1016/j.jos.2022.10.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/15/2022] [Revised: 09/16/2022] [Accepted: 10/16/2022] [Indexed: 11/06/2022]
Abstract
BACKGROUND Ligament quality can affect clinical outcomes of ligament repair in chronic lateral ankle instability (CLAI). Magnetic resonance imaging (MRI) is used to assess the morphological changes of ligaments, but the measurement of signal intensity enables quantitative evaluation, which can evaluate the degree of the ligament quality. This study aimed to evaluate the qualitative diagnostic capacity for anterior talofibular ligament (ATFL) and calcaneofibular ligament (CFL) injuries of the signal intensity on MRI. METHODS Thirty-eight and 20 ankles with and without CLAI, respectively, were included. The regions of interest (ROIs) were set in the ATFL, CFL, and tibialis anterior tendon (TAT) on MRI, and the signal intensities were measured. The signal intensities of the ATFL and CFL were corrected using TAT as the signal intensity ratio (SIR). The SIRs of the ATFL and CFL in the control and CLAI groups were compared. The relationship between the SIR of the ATFL and the arthroscopic findings was analyzed. Finally, the SIRs of the CFL in CLAI with and without CFL repair were compared. RESULTS The mean SIR of the ATFL in the CLAI group (6.1 ± 2.4) was significantly higher than that in the control (2.1 ± 0.4) (P < 0.01). The SIR of the ATFL was associated with the arthroscopic grading. The mean SIR of the CFL in the CLAI groups (4.1 ± 2.5) was significantly higher than that in the control (1.7 ± 0.4) (P < 0.01). The SIR of the CFL in patients with the requirement of the CFL repair (6.2 ± 1.9) was significantly higher than that without the CFL repair (2.1 ± 0.5) (P < 0.05). CONCLUSIONS The SIR is useful for evaluating the quality of the ATFL and CFL, which enables the decision of the treatment strategy of the CLAI.
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Affiliation(s)
- Tomoyuki Nakasa
- Department of Orthopaedic Surgery, Graduate School of Biomedical and Health Sciences, Hiroshima University, Japan; Medical Center for Translational and Clinical Research, Hiroshima University Hospital, 1-2-3 Kasumi, Minamiku, Hiroshima City, Hiroshima, 734-8551, Japan.
| | - Yasunari Ikuta
- Department of Orthopaedic Surgery, Graduate School of Biomedical and Health Sciences, Hiroshima University, Japan
| | - Junichi Sumii
- Department of Orthopaedic Surgery, Graduate School of Biomedical and Health Sciences, Hiroshima University, Japan
| | - Akinori Nekomoto
- Department of Orthopaedic Surgery, Graduate School of Biomedical and Health Sciences, Hiroshima University, Japan
| | - Shingo Kawabata
- Department of Orthopaedic Surgery, Graduate School of Biomedical and Health Sciences, Hiroshima University, Japan
| | - Nobuo Adachi
- Department of Orthopaedic Surgery, Graduate School of Biomedical and Health Sciences, Hiroshima University, Japan
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Yow BG, Anderson AB, Aburish Z, Tennent DJ, LeClere LE, Rue JPH, Owens BD, Donohue M, Cameron KL, Posner M, Dickens JF. Beach-Chair Versus Lateral Decubitus Positioning for Primary Arthroscopic Anterior Shoulder Stabilization: A Consecutive Series of 641 Shoulders. Am J Sports Med 2023; 51:3367-3373. [PMID: 37817535 DOI: 10.1177/03635465231200251] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/12/2023]
Abstract
BACKGROUND There are limited data comparing the beach-chair (BC) versus lateral decubitus (LD) position for arthroscopic anterior shoulder stabilization. PURPOSE To identify predictors of instability recurrence and revision after anterior shoulder stabilization and evaluate surgical position and glenoid bone loss as independent predictors of recurrence and revision at short- and midterm follow-ups. STUDY DESIGN Cohort study; Level of evidence, 3. METHODS A consecutive series of 641 arthroscopic anterior stabilization procedures were performed from 2005 to 2019. All shoulders were evaluated for glenohumeral bone loss on magnetic resonance imaging. The primary outcomes of interest were recurrence and revision. Multivariable logistic regression models were used to assess the relationships of outcomes with age, position, glenoid bone loss group, and track. RESULTS A total of 641 shoulders with a mean age of 22.3 years (SD, 4.45 years) underwent stabilization and were followed for a mean of 6 years. The overall 1-year recurrent instability rate was 3.3% (21/641) and the revision rate was 2.8% (18/641). At 1 year, recurrence was observed in 2.3% (11/487) and 6.5% (10/154) of BC and LD shoulders, respectively. The 5-year recurrence and revision rates were 15.7% (60/383) and 12.8% (49/383), respectively. At 5 years, recurrence was observed in 16.4% (48/293) and 13.3% (12/90) of BC and LD shoulders, respectively. Multivariable modeling demonstrated that surgical position was not associated with a risk of recurrence after 1 year (odds ratio [OR] for LD vs BC, 1.39; P = .56) and 5 years (OR for LD vs BC, 1.32; P = .43), although younger age at index surgery was associated with a higher risk of instability recurrence (OR, 1.73 per SD [4.1 years] decrease in age; P < .03). After 1 and 5 years, surgical position results were similar in a separate multivariable logistic regression model of revision surgery as the dependent variable, when adjusted for age, surgical position, bone loss group, and track. At 5 years, younger age was an independent risk factor for revision: OR 1.68 per SD (4.1 years) decrease in age (P < .05). CONCLUSION Among fellowship-trained orthopaedic surgeons, there was no difference in rates of recurrence and revision surgery after performing arthroscopic anterior stabilization in either the BC or the LD position at 1- and 5-year follow-ups. In multivariable analysis, younger age, but not surgical position, was an independent risk factor for recurrence.
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Affiliation(s)
- Bobby G Yow
- Department of Orthopaedic Surgery, Walter Reed National Military Medical Center, Bethesda, Maryland, USA
- John A. Feagin Jr. Sports Medicine Fellowship, Keller Army Hospital, United States Military Academy, West Point, New York, USA
- Department of Orthopaedic Surgery, Eisenhower Army Medical Center, Augusta, Georgia, USA
| | - Ashley B Anderson
- Department of Orthopaedic Surgery, Walter Reed National Military Medical Center, Bethesda, Maryland, USA
- Department of Surgery, Uniformed Services University of Health Sciences, Bethesda, Maryland, USA
| | - Zein Aburish
- Department of Orthopaedic Surgery, Walter Reed National Military Medical Center, Bethesda, Maryland, USA
| | - David J Tennent
- Department of Orthopaedic Surgery, Evans Army Community Hospital, Fort Carson, Colorado, USA
| | - Lance E LeClere
- Department of Orthopaedic Surgery, Vanderbilt University Medical Center, Nashville, Tennessee, USA
| | - John-Paul H Rue
- The Orthopaedic Specialty Hospital, Mercy Medical Center, Baltimore, Maryland, USA
| | - Brett D Owens
- Department of Orthopaedic Surgery, Warren Alpert Medical School of Brown University, Providence, Rhode Island, USA
| | - Michael Donohue
- John A. Feagin Jr. Sports Medicine Fellowship, Keller Army Hospital, United States Military Academy, West Point, New York, USA
| | - Kenneth L Cameron
- John A. Feagin Jr. Sports Medicine Fellowship, Keller Army Hospital, United States Military Academy, West Point, New York, USA
| | - Matthew Posner
- Department of Orthopaedic Surgery, WellSpan York Hospital, York, Pennsylvania, USA
| | - Jonathan F Dickens
- Department of Surgery, Uniformed Services University of Health Sciences, Bethesda, Maryland, USA
- Department of Orthopaedic Surgery, Duke University, Durham, North Carolina
- Department of Orthopaedics, Institute of Clinical Sciences, Sahlgrenska Academy, Gothenburg University, Gothenburg, Sweden
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76
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Etoh T, Yamamoto N, Kawakami J, Kamimura M, Chiba D, Mori Y, Hashimoto K, Aizawa T, Itoi E. How much force is acting on the shoulder joint to create a Hill-Sachs Lesion or reverse Hill-Sachs Lesion? J Orthop Sci 2023; 28:1252-1257. [PMID: 36280491 DOI: 10.1016/j.jos.2022.09.016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/21/2022] [Revised: 08/16/2022] [Accepted: 09/13/2022] [Indexed: 02/09/2023]
Abstract
BACKGROUND It has not been clarified yet how much force is acting on the shoulder joint to create Hill-Sachs/reverse Hill-Sachs lesions which are commonly observed in patients with anterior or posterior shoulder instability. The purpose of this study was to determine the magnitude of force to create these bony lesions using cadaveric shoulders. METHODS Fourteen fresh-frozen cadaveric shoulders were used. Compression tests were performed using the universal testing machine. The specimens were randomly divided into two groups. In group A, the posterior humeral head (the bare area and articular cartilage) was first compressed against the anterior glenoid rim to simulate a Hill-Sachs lesion, followed by the anterior humeral head being compressed against the posterior glenoid rim. In group B, the same procedure was repeated in the reverse order. X-ray microcomputed tomography (microCT) was also performed. RESULTS The maximum compression force to create a Hill-Sachs lesion was 771 ± 214 N (mean ± SD) on the articular cartilage of the posterior humeral head, which was significantly greater than the force of 447 ± 215 N to create it on the bare area (P = 0.0086). Regarding the reverse Hill-Sachs lesions, the maximum compression force was 840 ± 198 N when it was created on the articular cartilage of the anterior humeral head, which was significantly greater than the force of 471 ± 100 N when it was created at the footprint of the subscapularis tendon (P = 0.0238). MicroCT showed multiple breakage of the trabecular bone. CONCLUSION A force to create a Hill-Sachs lesion or a reverse Hill-Sachs lesion was significantly greater when it was created on the humeral articular cartilage than at the non-cartilage area. Also, the force to create a reverse Hill-Sachs lesion was significantly greater than the one to create a Hill-Sachs lesion.
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Affiliation(s)
- Toshimitsu Etoh
- Department of Orthopaedic Surgery, Tohoku University School of Medicine, Sendai, Japan
| | - Nobuyuki Yamamoto
- Department of Orthopaedic Surgery, Tohoku University School of Medicine, Sendai, Japan.
| | - Jun Kawakami
- Department of Orthopaedic Surgery, Tohoku University School of Medicine, Sendai, Japan
| | - Masayuki Kamimura
- Department of Orthopaedic Surgery, Tohoku University School of Medicine, Sendai, Japan
| | - Daisuke Chiba
- Department of Orthopaedic Surgery, Tohoku University School of Medicine, Sendai, Japan
| | - Yu Mori
- Department of Orthopaedic Surgery, Tohoku University School of Medicine, Sendai, Japan
| | - Ko Hashimoto
- Department of Orthopaedic Surgery, Tohoku University School of Medicine, Sendai, Japan
| | - Toshimi Aizawa
- Department of Orthopaedic Surgery, Tohoku University School of Medicine, Sendai, Japan
| | - Eiji Itoi
- Department of Orthopaedic Surgery, Tohoku Rosai Hospital, Sendai, Japan
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Oronowicz J, Mouton C, Pioger C, Valcarenghi J, Tischer T, Seil R. The posterior cruciate ligament-posterior femoral cortex angle (PCL-PCA) and the lateral collateral ligament (LCL) sign are useful parameters to indicate the progression of knee decompensation over time after an ACL injury. Knee Surg Sports Traumatol Arthrosc 2023; 31:5128-5136. [PMID: 37805550 DOI: 10.1007/s00167-023-07583-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/21/2023] [Accepted: 09/06/2023] [Indexed: 10/09/2023]
Abstract
PURPOSE The posterior cruciate ligament-posterior cortex angle (angle between the most vertical part of the anterolateral PCL bundle and the posterior diaphyseal cortex of the femur; PCL-PCA) is the most accurate approach to describe the PCL buckling phenomenon observed in anterior cruciate ligament (ACL)-deficient knees. The aim of this study was to determine whether the PCL-PCA is associated with chronicity of the ACL rupture, the meniscal status, preoperative knee laxity or imaging signs such as the lateral collateral ligament (LCL) sign or the posterior tibial slope (PTS) in ACL-injured knees. METHODS Patients with a primary ACL reconstruction (ACLR) after physeal closure were selected retrospectively from a hospital-based ACL registry from 2015 to 2021. Exclusion criteria were: previous ipsilateral/contralateral knee surgery, previous ipsilateral ACL or meniscal tear, ipsilateral PCL and/or collateral ligament injuries or tibial plateau fracture. The ACL deficiency was defined as chronic if time from injury to MRI was > 6 months. The meniscal status was assessed during ACLR, separately for the medial and lateral meniscus, and classified into no tear, minor or major unstable tear. The MRI analyses included the assessment of the PCL-PCA and the LCL sign. PTS was assessed from the lateral plain radiographs of the injured knee. The side-to-side difference in anterior tibial translation (ATT) at 200N was obtained with the GNRB. RESULTS Eighty-two patients (forty-eight males/thirty-four females) were included in this study. The median PCL-PCA was 16.2° (Q1-Q3: 10.6-24.7) and differed between acute (18.4°) and chronic (10.7°) injuries (p < 0.01). The median PCL-PCA was significantly lower (- 4.6°) in patients with a positive LCL sign (p = 0.03) No significant association could be found between PCL-PCA and meniscal status, PTS or preoperative anterior knee laxity (Lachman, pivot shift and ATT in millimetres). CONCLUSION The PCL-PCA was significantly lower in chronic ACL injuries and in patients with a positive LCL sign, indicating a higher buckling phenomenon of the PCL in these patients. These results support the fact that PCL-PCA and the LCL sign may be useful parameters to indicate the progression of knee decompensation over time after an ACL injury, and therefore may constitute a helpful tool to optimise treatment choice and timing of ACL reconstruction if necessary. LEVEL OF EVIDENCE III.
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Affiliation(s)
- Jakub Oronowicz
- Clinic for Orthopaedics and Trauma Surgery, Malteser St. Mary's Hospital, Erlangen, Germany
| | - Caroline Mouton
- Department of Orthopaedic Surgery, Centre Hospitalier de Luxembourg-Clinique d'Eich, Luxembourg, Luxembourg
- Sports Medicine and Science, Luxembourg Institute of Research in Orthopaedics, Luxembourg, Luxembourg
| | - Charles Pioger
- Department of Orthopaedic Surgery, Ambroise Paré Hospital, Paris Saclay University, Paris, France
| | - Jérôme Valcarenghi
- Department of Orthopaedic Surgery, Centre Hospitalier Universitaire Ambroise Paré, Mons, Belgium
| | - Thomas Tischer
- Clinic for Orthopaedics and Trauma Surgery, Malteser St. Mary's Hospital, Erlangen, Germany
- Department of Orthopaedics, University of Rostock, Rostock, Germany
| | - Romain Seil
- Department of Orthopaedic Surgery, Centre Hospitalier de Luxembourg-Clinique d'Eich, Luxembourg, Luxembourg.
- Sports Medicine and Science, Luxembourg Institute of Research in Orthopaedics, Luxembourg, Luxembourg.
- Human Motion, Orthopaedics, Sports Medicine and Digital Methods, Luxemburg Institute of Health, Luxembourg, Luxembourg.
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Kurata H, Sano H, Inawashiro T, Sasaki D, Noguchi M, Irie T, Suzuki K, Nishinaka N, Abe H. Persistent anterior shoulder pain after the Oudard-Iwahara-Yamamoto procedure in a patient with anterior shoulder instability: A case report. J Orthop Sci 2023; 28:1445-1449. [PMID: 34120826 DOI: 10.1016/j.jos.2021.04.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/22/2020] [Revised: 03/21/2021] [Accepted: 04/13/2021] [Indexed: 11/26/2022]
Affiliation(s)
| | - Hirotaka Sano
- Division of Orthopedics, Sendai City Hospital, Japan.
| | | | - Daizo Sasaki
- Division of Orthopedics, Sendai City Hospital, Japan.
| | | | - Taichi Irie
- Division of Orthopedics, Sendai City Hospital, Japan.
| | - Kazuhide Suzuki
- Department of Sports Medicine, Asao General Hospital, Japan.
| | - Naoya Nishinaka
- Department of Orhopaedic Surgery, Showa University Fujigaoka Hospital, Japan.
| | - Hiroo Abe
- Division of Orthopedics, Sendai City Hospital, Japan.
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79
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Daniels SD, France TJ, Peek KJ, Tucker NJ, Baldini T, Catalano LW, Lauder A. Posterolateral Rotatory Instability Develops Following the Modified Kocher Approach and Does Not Resolve Following Interval Repair. J Bone Joint Surg Am 2023; 105:1601-1610. [PMID: 37616381 DOI: 10.2106/jbjs.23.00199] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 08/26/2023]
Abstract
BACKGROUND The modified Kocher and extensor digitorum communis (EDC)-splitting intervals are commonly utilized to approach the lateral elbow. Iatrogenic injury to the lateral ulnar collateral ligament may result in posterolateral rotatory instability (PLRI). in the present cadaveric study, we (1) evaluated lateral elbow stability following the use of these approaches and (2) assessed the accuracy of static lateral elbow radiographs as a diagnostic tool for PLRI. METHODS Ten matched-pair cadaveric upper-extremity specimens (n = 20) were randomly assigned to Kocher or EDC-splitting approaches. Specimens underwent evaluation pre-dissection, post-dissection, and following repair of the surgical interval. Clinical evaluation of lateral elbow stability was performed with the lateral pivot-shift maneuver. Radiographic radiocapitellar displacement was evaluated with the fully extended hanging arm test and on lateral elbow 30° flexion radiographs. Paired Wilcoxon signed-rank tests with Bonferroni correction were utilized to compare groups. RESULTS All Kocher group specimens (10 of 10) developed PLRI on the pivot-shift maneuver following dissection. No EDC-splitting group specimens (0 of 10) developed instability with pivot-shift testing. The fully extended hanging arm test showed no difference in radiocapitellar displacement between groups (p > 0.008). Lateral elbow 30° flexion radiographs in the Kocher group showed an increased radiocapitellar displacement difference (mean, 8.46 mm) following dissection compared with the pre-dissection baseline (p < 0.008). Following repair of the Kocher interval, the radiocapitellar displacement (mean, 6.43 mm) remained greater than pre-dissection (mean, 2.26 mm; p < 0.008). In the EDC-splitting group, no differences were detected in radiocapitellar displacement on lateral elbow radiographs with either the fully extended hanging arm or lateral elbow 30° flexion positions. CONCLUSIONS The Kocher approach produced PLRI that did not return to baseline conditions following repair of the surgical interval. The EDC-splitting approach did not cause elbow instability clinically or radiographically. The hanging arm test was not reliable for the detection of PLRI. CLINICAL RELEVANCE The Kocher interval for lateral elbow exposure results in iatrogenic PLRI that is not detectable on the hanging arm test and that does not return to baseline stability following repair of the surgical interval.
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Affiliation(s)
- Stephen D Daniels
- Department of Orthopedic Surgery, University of Colorado School of Medicine, Aurora, Colorado
| | - Thomas J France
- Department of Orthopedic Surgery, University of Colorado School of Medicine, Aurora, Colorado
| | - Kacy J Peek
- Department of Orthopedic Surgery, University of Virginia School of Medicine, Charlottesville, Virginia
| | - Nicholas J Tucker
- Department of Orthopedic Surgery, University of Colorado School of Medicine, Aurora, Colorado
| | - Todd Baldini
- Department of Orthopedic Surgery, University of Colorado School of Medicine, Aurora, Colorado
| | - Louis W Catalano
- Department of Orthopedic Surgery, University of Colorado School of Medicine, Aurora, Colorado
| | - Alexander Lauder
- Department of Orthopedic Surgery, University of Colorado School of Medicine, Aurora, Colorado
- Department of Orthopedic Surgery, Denver Health Medical Center, Denver, Colorado
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80
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Kim J, Kim GL, Kim T, Cho J. Evaluation of chronic ankle instability and subtalar instability using the angle between the anterior talofibular ligament and calcaneofibular ligament. Knee Surg Sports Traumatol Arthrosc 2023; 31:4539-4545. [PMID: 37286900 DOI: 10.1007/s00167-023-07433-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/21/2022] [Accepted: 04/20/2023] [Indexed: 06/09/2023]
Abstract
PURPOSE A series of studies have reported a change in the length or thickness of the anterior talofibular (ATFL) and calcaneofibular (CFL) ligaments in patients with chronic ankle instability. However, no study has examined the changes in the angle between the ATFL and CFL in patients diagnosed with chronic ankle instability. Therefore, this study analyzed the change in the angle between the ATFL and CFL in patients diagnosed with chronic ankle instability to confirm its relevance. METHODS This retrospective study included 60 patients who had undergone surgery for chronic ankle instability. Stress radiographs comprising the anterior drawer test, varus stress test, Broden's view stress test, and magnetic resonance imaging (MRI) were performed in all patients. The angle between the ATFL and CFL was measured by indicating the vector at the attachment site, as seen on the sagittal plane. Three groups were classified according to the angle between the two ligaments measured by MRI: group I when the angle was > 90°, Group II when the angle was 71-90°, and Group III when the angle was ≤ 70°. The accompanying injuries to the subtalar joint ligament were analyzed via MRI. RESULTS A comparison of the angles between the ATFL and CFL measured on MRI in Group I, Group II, and Group III with the angles measured in the operating room revealed a significant correlation. Broden's view stress test revealed a statistically significant difference among the three groups (p < 0.05). The accompanying subtalar joint ligament injuries differed significantly among the three groups (p < 0.05). CONCLUSION The ATFL-CFL angle in patients with ankle instability is smaller than the average angle in ordinary people. Therefore, the ATFL-CFL angle might be a reliable and representative measurement tool to assess chronic ankle instability, and subtalar joint instability should be considered if the ATFL-CFL angle is 70° or less. LEVEL OF EVIDENCE Level III.
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Affiliation(s)
- Jiyoun Kim
- Department of Orthopedic Surgery, Kosin University Gospel Hospital, Kosin University School of Medicine, Busan, Korea
| | - Gab Lae Kim
- Department of Orthopedic Surgery, Kang-Dong Sacred Heart Hospital, Hallym University School of Medicine, Seong-an Ro 150, Kang-dong Gu, Seoul, 05355, Korea.
| | - Taeho Kim
- Department of Orthopedic Surgery, Kang-Dong Sacred Heart Hospital, Hallym University School of Medicine, Seong-an Ro 150, Kang-dong Gu, Seoul, 05355, Korea
| | - Junghyun Cho
- Department of Orthopedic Surgery, Kang-Dong Sacred Heart Hospital, Hallym University School of Medicine, Seong-an Ro 150, Kang-dong Gu, Seoul, 05355, Korea
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81
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Chans-Veres J, Vallejo M, Galhoum AE, Tejero S. Diagnosis of subtle syndesmotic instability using conventional CT-imaging and axial force in different foot positions. Foot Ankle Surg 2023; 29:544-548. [PMID: 36681578 DOI: 10.1016/j.fas.2023.01.004] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/10/2022] [Revised: 10/07/2022] [Accepted: 01/08/2023] [Indexed: 01/13/2023]
Abstract
BACKGROUND Currently, there is no available method that can objectively and reliably detect subtle instability of the distal tibiofibular joint. The purpose of this study is to diagnose, using computerized axial tomography and an adjustable simulated loading device, subtle instability of the tibiofibular syndesmosis. METHODS Fifteen healthy individuals and 15 patients with clinical suspicion of subtle instability of the tibiofibular syndesmosis (total 60 ankles) were studied using an adjustable simulated loading device (ASLD). This device allows to perform bilateral ankle CT scans in two forced foot and ankle positions (30° of plantar flexion, 15° of inversion, 20° of internal rotation and 15° of dorsal flexion, 15° of eversion, 30° of external rotation). Axial load was applied simultaneously in a controlled manner (70% body weight). Measurements on the axial image of computed tomography were: syndesmotic area (SA), fibular rotation (FR), position of the fibula in the sagittal plane (FPS), depth of the incisura (ID), anterior direct difference (ADD), middle direct difference (MDD) and posterior direct difference (PDD). RESULTS Statistically significant differences were observed in the variable syndesmotic area between healthy (mean=-0.14, SD=4.33) and diseased (mean=16.82, SD=12.3)(p < 0.001). No statistically significant differences were found in the variables ADD, MDD, PDD, ID, FPS and FR. CONCLUSIONS Measurement of syndesmotic area employing axial force and forced foot positions using the ASLD may be useful for the diagnosis of subtle tibiofibular syndesmosis instability.
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Affiliation(s)
| | | | | | - Sergio Tejero
- Head of Foot Ankle Unit University Hospital Virgen del Rocío, Seville, Spain.
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82
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Orhan Ö, Sezgin EA, Özer M, Ataoğlu MB, Kanatlı U. Does glenoid bone loss accompany posterior shoulder instability with only labral tear? A magnetic resonance imaging-based study. J Shoulder Elbow Surg 2023; 32:2066-2073. [PMID: 37507000 DOI: 10.1016/j.jse.2023.06.032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/22/2023] [Revised: 06/07/2023] [Accepted: 06/24/2023] [Indexed: 07/30/2023]
Abstract
BACKGROUND The primary aim of this study was to investigate bone loss in the glenoid with magnetic resonance imaging in posterior shoulder instability with only a labral tear. METHODS A total of 76 patients operated on because of posterior and anteroposterior shoulder instability only with a labral tear between 2006 and 2019 (n = 40 and n = 36, respectively) were included in this study. The instability type, a presence of an additional superior labrum anteroposterior (SLAP) lesion, the number of dislocations, and the magnetic resonance imaging-based measurements (the glenoid diameter and the bone defect size in the glenoid, the Hill-Sachs lesion [HSL] and the reverse HSL [rHSL] length, the angle and the arc length of HSL and rHSL, and the humerus head diameter and its area) were analyzed. RESULTS The size of the anterior glenoid defect, the rHSL measurements (length, angle, and arc length), and the ratio of the anterior glenoid defect size to the glenoid diameter were significantly higher for anteroposterior instability (P < .01) cases. There was no significant difference (P = .49, .64, and .82, respectively) for the presence of an additional SLAP pathology, the glenoid diameter, the posterior glenoid defect, and the ratio of the posterior glenoid defect size to the glenoid diameter in posterior and anteroposterior instability groups. The increased number of dislocations was associated with increased rHSL length and total arc length (P = .04 and .03, respectively). An additional SLAP lesion in posterior shoulder instabilities was not associated with the bone defect size (P = .29). CONCLUSION Although the posterior shoulder instability with only a labral tear is likely to cause a bone defect, we have shown that the instability is not expected to be caused by the bone defect. Therefore, this study points out that only soft tissue repair without considering the bone defect could be promising in this patient group.
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Affiliation(s)
- Özlem Orhan
- Department of Orthopedics and Traumatology, Medical Faculty of Harran University, Şanlıurfa, Turkey.
| | - Erdem Aras Sezgin
- Department of Orthopedics and Traumatology, Aksaray University Training and Education Hospital, Aksaray, Turkey
| | - Mustafa Özer
- Department of Orthopedics and Traumatology, Meram Medical Faculty, Necmettin Erbakan University, Konya, Turkey
| | | | - Ulunay Kanatlı
- Department of Orthopedics and Traumatology, Medical Faculty of Gazi University, Ankara, Turkey
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83
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Imhoff FB, Vlachopoulos L. [Slope and frontal axis: three-dimensional analysis and correction with patient-specific cutting guides for the proximal tibia]. Oper Orthop Traumatol 2023; 35:248-257. [PMID: 37284831 DOI: 10.1007/s00064-023-00815-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/22/2022] [Revised: 11/29/2022] [Accepted: 12/02/2022] [Indexed: 06/08/2023]
Abstract
OBJECTIVE Three-dimensional correction of the bony alignment in the frontal and sagittal plane of the proximal tibia; surgery is performed via an open- or closing-wedge osteotomy to improve ligament stability and reduce joint degeneration. INDICATIONS Chronic anterior cruciate ligament (ACL) or posterior cruciate ligament (PCL) instability and ligament revision surgeries; subjective knee instability in patients who are ambitious athletes and people who do physical labor; moderate joint degeneration with meniscus and cartilage damage, post-traumatic deformities. CONTRAINDICATIONS Time pressure (immediate meniscus surgery, since planning and production of patient-specific tools is time-consuming), lack of compliance (need for partial weight bearing, crutches), excessive smoking, vascular pathologies. SURGICAL TECHNIQUE Planning based on computed tomography (CT) data, determination of the axis of rotation with open or closing wedge, or dome osteotomy; production of corresponding patient-specific cutting blocks. Surgery is performed using the known standard approaches for a high tibial osteotomy (HTO). Exact positioning of cutting guides on the exposed bone. Sawing and adjusting the correction using an osteotomy chisel so that the reduction guide can be attached. Fixation of the achieved correction with angle-stable plate fixator. POSTOPERATIVE MANAGEMENT Partial weight bearing based on the extent of the correction for 6 weeks, free range of motion if no additional ligamentous reconstruction was performed. Subsequent full weight bearing after X‑ray and, if necessary, CT control. RESULTS No general results can be presented, since the surgical procedure, the indication, and the patient group are extremely heterogeneous. Accuracy of the cutting blocks used has been presented in other studies and is given as 0.8° ± 1.5° in relation to the frontal axis. However, the intraoperative change in the correction and adaptation to the surgical site that is presented depends on the surgeon and can greatly influence the extent of correction in terms of accuracy in complex corrections.
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Affiliation(s)
- Florian B Imhoff
- Praxisklinik Rennbahn AG, Kriegackerstr. 100, 4132, Muttenz, Schweiz.
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84
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Zhang L, Lan T, Chen J, Wei Z, Shi H, Wang G. The increased anterior talofibular ligament-posterior talofibular ligament angle on MRI may help evaluate chronic ankle instability. Surg Radiol Anat 2023; 45:1205-1211. [PMID: 37423946 PMCID: PMC10533641 DOI: 10.1007/s00276-023-03196-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2023] [Accepted: 06/28/2023] [Indexed: 07/11/2023]
Abstract
PURPOSE This study intended to compare the difference between the anterior talofibular ligament (ATFL) and posterior talofibular ligament (PTFL) angle with chronic ankle instability (CAI) patients and healthy volunteers, and to confirm whether using the ATFL-PTFL angle could be a reliable assessment method for CAI, so as to improve the accuracy and specificity of clinical diagnosis. METHODS This retrospective study included 240 participants: 120 CAI patients and 120 healthy volunteers between 2015 and 2021. The ATFL-PTFL angle of the ankle region was gaged in the cross-sectional supine position on MRI between two groups. After participants undergoing a comprehensive MRI scanning, ATFL-PTFL angles were regarded as the main indicator of patients with the injured ATFLs and healthy volunteers to compare, and were measured by an experienced musculoskeletal radiologist. Moreover, other qualitative and quantitative indicators referring to anatomical and morphological characteristics of the AFTL were included in this study with MRI, such as the length, width, thickness, shape, continuity, and signal intensity of the ATFL, which can be used as secondary indicators. RESULTS In the CAI group, the ATFL-PTFL angle was 90.8° ± 5.7°, which was significantly different from the non-CAI group where the ATFL-PTFL angle for 80.0° ± 3.7° (p < 0.001). As for the ATFL-MRI characteristics, the length (p = 0.003), width (p < 0.001), and thickness (p < 0.001) in the CAI group were also significantly different from the non-CAI group. Over 90% of the cases, patients of the CAI group had injured ATFL with an irregular shape, non-continuous, and high or mixed signal intensity. CONCLUSION Compared with healthy people, the ATFL-PTFL angle of most CAI patients is larger, which can be used as a secondary index to diagnose CAI. However, the MRI characteristic changes of ATFL may not relate to the increased ATFL-PTFL angle.
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Affiliation(s)
- Lei Zhang
- Department of Orthopedics, The Affiliated Traditional Chinese Medicine Hospital of Southwest Medical University, Luzhou, 646000, China.
- Center for Orthopedic Diseases Research, The Affiliated Traditional Chinese Medicine Hospital of Southwest Medical University, Luzhou, 646000, China.
| | - Ting Lan
- School of Clinical Medicine, Southwest Medical University, Luzhou, 646000, China
| | - Junyao Chen
- School of Clinical Medicine, Southwest Medical University, Luzhou, 646000, China
| | - Zidong Wei
- School of Clinical Medicine, Southwest Medical University, Luzhou, 646000, China
| | - Houyin Shi
- Department of Orthopedics, The Affiliated Traditional Chinese Medicine Hospital of Southwest Medical University, Luzhou, 646000, China
- Center for Orthopedic Diseases Research, The Affiliated Traditional Chinese Medicine Hospital of Southwest Medical University, Luzhou, 646000, China
| | - Guoyou Wang
- Department of Orthopedics, The Affiliated Traditional Chinese Medicine Hospital of Southwest Medical University, Luzhou, 646000, China
- Center for Orthopedic Diseases Research, The Affiliated Traditional Chinese Medicine Hospital of Southwest Medical University, Luzhou, 646000, China
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Zhou K, Sun Z, Feng A, Guo H, Sun R, Niu Y, Liu L, Wang X. Derotational distal femur osteotomy combined with medial patellofemoral ligament reconstruction yields satisfactory results in recurrent patellar dislocation with excessive femoral anteversion angle and trochlear dysplasia. Knee Surg Sports Traumatol Arthrosc 2023; 31:4347-4354. [PMID: 37340219 DOI: 10.1007/s00167-023-07476-y] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/24/2022] [Accepted: 06/01/2023] [Indexed: 06/22/2023]
Abstract
PURPOSE The purpose of this study was to evaluate the clinical outcomes of medial patellofemoral ligament (MPFL) reconstruction combined with derotational distal femur osteotomy in patients with recurrent patellar dislocation who had excessive femoral anteversion angle and trochlear dysplasia. METHODS Between 2015 and 2020, 64 patients (64 knees) with recurrent patellar dislocation, who had excessive femoral anteversion angle (≥ 25°) and trochlear dysplasia and were surgically treated using derotational distal femur osteotomy and MPFL reconstruction, were eligible for this retrospective study. These patients were assigned to two groups according to the grade of trochlear dysplasia. Group A (type A trochlear dysplasia, n = 33) and Group B (type B, C, D trochlear dysplasia, n = 31). Preoperative and postoperative patellar tilt angle (PTA), Caton-Deschamps index (CD-I), tibial tubercle-trochlear groove (TT-TG) distance and femoral anteversion angle were evaluated. Patient outcomes were assessed using the preoperative and postoperative International Knee Documentation Committee (IKDC) score, Kujala score, Lysholm score, Tegner score, and visual analog scale (VAS) score. RESULTS A total of 64 patients (64 knees) were evaluated in this study, with a mean follow-up period of 28.4 ± 3.6 months. There were no cases of wound infection, osteotomy site fractures, deep venous thrombosis of the lower extremities, or re-dislocation in the two groups during the postoperative follow-up period. All patients returned to full extension and flexion. The postoperative Tegner score, Lysholm score, Kujala score, IKDC score, VAS score, PTA, CD-I, TT-TG distance, and femoral anteversion angle were significantly improved compared with the preoperative status (P < 0.05). There was no significant difference between the two groups (n.s.). CONCLUSION MPFL reconstruction combined with derotational distal femur osteotomy showed satisfactory clinical outcomes during follow-up in patients with recurrent patellar dislocation who had excessive femoral anteversion angle and trochlear dysplasia. Even patients with high-grade trochlear dysplasia showed satisfactory results. For those patients, additional surgery is not necessary. LEVEL OF EVIDENCE Level III.
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Affiliation(s)
- Kezhen Zhou
- Department of Orthopaedic Surgery, Third Hospital of Hebei Medical University, Shijiazhuang, 050051, Hebei, China
| | - Zhiwen Sun
- Department of Orthopaedic Surgery, Third Hospital of Hebei Medical University, Shijiazhuang, 050051, Hebei, China
| | - Ao Feng
- Department of Orthopaedic Surgery, Third Hospital of Hebei Medical University, Shijiazhuang, 050051, Hebei, China
| | - Hailong Guo
- Department of Orthopaedic Surgery, Third Hospital of Hebei Medical University, Shijiazhuang, 050051, Hebei, China
| | - Ran Sun
- Department of Orthopaedic Surgery, Third Hospital of Hebei Medical University, Shijiazhuang, 050051, Hebei, China
| | - Yingzhen Niu
- Department of Orthopaedic Surgery, Third Hospital of Hebei Medical University, Shijiazhuang, 050051, Hebei, China
| | - Lei Liu
- Department of Orthopaedic Surgery, Third Hospital of Hebei Medical University, Shijiazhuang, 050051, Hebei, China
| | - Xiaofeng Wang
- Department of Orthopaedic Surgery, Third Hospital of Hebei Medical University, Shijiazhuang, 050051, Hebei, China.
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86
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Kobayashi T, Kodesho T, Kinami K, Takahashi A, Taniguchi K, Taniguchi K. Characteristics of the static muscle stiffness of ankle plantar flexors in individuals with chronic ankle instability. J Med Ultrason (2001) 2023; 50:561-570. [PMID: 37640966 DOI: 10.1007/s10396-023-01360-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2023] [Accepted: 08/07/2023] [Indexed: 08/31/2023]
Abstract
PURPOSE Individuals with chronic ankle instability (CAI) have deficits in closed kinetic chain dorsiflexion that may perpetuate injury. Determining the characteristics of muscle stiffness in the plantar flexors of individuals with CAI may help in developing appropriate treatments. We aimed to highlight the characteristics of static muscle stiffness in ankle plantar flexor muscles during the passive dorsiflexion of the ankle joint in individuals with CAI. METHODS A total of 30 patients were included in the study based on the International Ankle Consortium criteria. The patients were categorized evenly into healthy, coper, and CAI groups (i.e., 10 patients in each group). After measuring the dorsiflexion range of motion (non-weight-bearing/weight-bearing) of the ankle joint, the static muscle stiffness measurements of the medial gastrocnemius, lateral gastrocnemius, soleus, and peroneus longus were obtained. The measurements were performed during the knee joint's extension and 50° flexion and passive dorsiflexion between the range of 40° plantar flexion and 20° dorsiflexion. RESULTS The dorsiflexion range of motion of the CAI group was significantly smaller than that of the healthy and coper groups in the weight-bearing position. No interaction was observed for muscle stiffness in both the knee flexion and extension positions, and no significant differences were identified among the three groups. The shear modulus of the soleus at 20° ankle dorsiflexion with knee flexion had a significant negative correlation with the weight-bearing range of motion of the ankle. CONCLUSION The limitation in the weight-bearing dorsiflexion range of motion in CAI was largely due to factors other than the increased elasticity of the ankle plantar flexor muscles.
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Affiliation(s)
- Takumi Kobayashi
- Department of Rehabilitation, Faculty of Health Science, Hokkaido Chitose College of Rehabilitation, 2-10 Satomi, Chitose, Hokkaido, 066-0055, Japan.
| | - Taiki Kodesho
- Department of Sport Science and Research, Japan Institute of Sports Sciences (JISS), Tokyo, Japan
| | - Keita Kinami
- Department of Rehabilitation, Faculty of Health Science, Hokkaido Chitose College of Rehabilitation, 2-10 Satomi, Chitose, Hokkaido, 066-0055, Japan
| | - Ayuka Takahashi
- Department of Rehabilitation, Faculty of Health Science, Hokkaido Chitose College of Rehabilitation, 2-10 Satomi, Chitose, Hokkaido, 066-0055, Japan
| | - Konatsu Taniguchi
- Department of Rehabilitation, Faculty of Health Science, Hokkaido Chitose College of Rehabilitation, 2-10 Satomi, Chitose, Hokkaido, 066-0055, Japan
| | - Keigo Taniguchi
- Department of Physical Therapy, School of Health Sciences, Sapporo Medical University, Sapporo, Japan
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87
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Moroder P, Paksoy A, Siegert P, Thiele K, Lacheta L, Akgün D. The Independent Double-Row (IDR) Bony Bankart Repair Technique. Z Orthop Unfall 2023; 161:538-543. [PMID: 35196739 DOI: 10.1055/a-1753-9883] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
A displaced anterior glenoid rim fracture, the so-called bony Bankart lesion, occurs after a traumatic shoulder dislocation resulting from a high energy trauma and is associated with recurrent shoulder instability. Different surgical techniques have been described in the literature to address this pathology, including open reduction and fixation, as well as arthroscopic transosseous, and single-row or double-row approaches with the use of suture anchors. However, there is currently no gold standard of treatment and the stability of fixation and the healing of the bony fragment are still a concern. The purpose of this report was to introduce an arthroscopic independent double-row (IDR) bony Bankart repair technique for fixation of large glenoid fractures.
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Affiliation(s)
- Philipp Moroder
- Department for Shoulder and Elbow Surgery, Charité - Centrum für Muskuloskeletale Chirurgie, Berlin, Germany
| | - Alp Paksoy
- Department for Shoulder and Elbow Surgery, Charité - Centrum für Muskuloskeletale Chirurgie, Berlin, Germany
| | - Paul Siegert
- Department for Shoulder and Elbow Surgery, Charité - Centrum für Muskuloskeletale Chirurgie, Berlin, Germany
| | - Kathi Thiele
- Department for Shoulder and Elbow Surgery, Charité - Centrum für Muskuloskeletale Chirurgie, Berlin, Germany
| | - Lucca Lacheta
- Department for Shoulder and Elbow Surgery, Charité - Centrum für Muskuloskeletale Chirurgie, Berlin, Germany
| | - Doruk Akgün
- Department for Shoulder and Elbow Surgery, Charité - Centrum für Muskuloskeletale Chirurgie, Berlin, Germany
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Arner JW, Nolte PC, Ruzbarsky JJ, Woolson T, Provencher MT, Bradley JP, Millett PJ. Correlation of Acromial Morphology With Risk and Direction of Shoulder Instability: An MRI Study. Am J Sports Med 2023; 51:3211-3216. [PMID: 37732534 DOI: 10.1177/03635465231197661] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 09/22/2023]
Abstract
BACKGROUND The influence of bony morphology on the development of posterior shoulder instability is not well known. PURPOSE To determine if acromial morphology, as measured on magnetic resonance imaging (MRI), is associated with posterior or anterior shoulder instability. DESIGN Cross-sectional study; Level of evidence, 3. METHODS MRI measurements of posterior acromial coverage (PAC), posterior acromial height (PAH), posterior acromial tilt (PAT), and anterior acromial coverage (AAC) were completed for 3 separate matched groups who underwent surgical intervention: posterior instability, anterior instability, and a comparison group of patients who underwent arthroscopic surgery for snapping scapula. Inclusion criteria were patients with recurrent instability <40 years of age without multidirectional instability, glenoid bone loss >13.5%, or glenoid retroversion >10%. RESULTS Overall, 37 patients were included in each group. PAC was significantly less in the posterior instability group than in the anterior instability and comparison groups (68.3° vs 88.7° vs 81.7°; P < .001). PAH was significantly greater in the posterior group than in the anterior instability group (11.0 mm vs -0.1 mm; P < .001) and comparison group (0.7 mm; P < .001). There was no difference between the posterior and anterior groups in terms of PAT or AAC (P = .45 and P = .05, respectively). PAT was significantly smaller in the posterior instability group than the comparison group (55.2° vs 62.2°; P = .026). The anterior and comparison groups were not significantly different in PAH or PAT (P = .874 and P = .067, respectively) but were significantly different in AAC (P = .026). CONCLUSION A higher and flatter posterior acromion, as measured on preoperative MRI, appears to be associated with patients who require arthroscopic capsulolabral repair due to posterior shoulder instability. This information may help clinicians to both diagnose and predict the need for operative intervention for patients with posterior labral tears.
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Affiliation(s)
- Justin W Arner
- University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania, USA
| | | | - Joseph J Ruzbarsky
- The Steadman Clinic and Steadman Philippon Research Institute, Vail, Colorado, USA
| | - Thomas Woolson
- The Steadman Clinic and Steadman Philippon Research Institute, Vail, Colorado, USA
| | - Matthew T Provencher
- The Steadman Clinic and Steadman Philippon Research Institute, Vail, Colorado, USA
| | - James P Bradley
- University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania, USA
| | - Peter J Millett
- The Steadman Clinic and Steadman Philippon Research Institute, Vail, Colorado, USA
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Gür V, Yapici F, Subaşi İÖ, Gökgöz MB, Tanoğlu O, Koçkara N, Tandoğan NR. TT-TG distance decreases after open wedge distal femoral varization osteotomy in patients with genu valgum & patellar instability. A pilot 3D computed tomography simulation study. BMC Musculoskelet Disord 2023; 24:753. [PMID: 37749570 PMCID: PMC10519055 DOI: 10.1186/s12891-023-06832-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/16/2023] [Accepted: 08/25/2023] [Indexed: 09/27/2023] Open
Abstract
BACKGROUND Genu valgum is considered to be a risk factor for patellar instability. Correction of valgus alone or combined with a tibial tuberosity medialization has been described. However, changes occurring in the tibial tuberosity-trochlear groove (TT-TG) distance after a lateral distal femoral opening wedge osteotomy (LDF-OWO) are not known. PURPOSE This study aimed to define changes in TT-TG distance with increasing amounts of valgus correction after LDF-OWO. METHODS Three-Dimensional Computed Tomography (3D-CT) scans of six patients (two females and four males) aged between 19 and 35 years with genu valgum and patellar instability were analyzed. 3D models of femoral, tibial, and patellar bones were created with the advanced segment option of Mimics 21® software. An oblique lateral opening wedge osteotomy of the distal femur was simulated in 2-degree increments up to 12 degrees of varus opening. Change in TT-TG distance was measured in mm on 3D models of the knee. RESULTS Compared to baseline without osteotomy, the TT-TG distance decreased significantly (p < 0.05) for all corrections from 2 to 12 degrees in 2° steps. The TT-TG distance decreased by an average of 1.7 mm for every 2 degrees of varus opening. CONCLUSION Lateral opening wedge distal femoral osteotomy causes a decrease in TT-TG distance. The surgeon should be aware of the magnitude of this change (1.7 mm decrease for every 2° increment of valgus opening).
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Affiliation(s)
- Volkan Gür
- Department of Orthopedics, Erzincan Faculty of Medicine, Erzincan, Turkey
| | - Furkan Yapici
- Department of Orthopedics, Erzincan Faculty of Medicine, Erzincan, Turkey
| | - İzzet Özay Subaşi
- Department of Orthopedics, Erzincan Faculty of Medicine, Erzincan, Turkey
| | | | - Oğuzhan Tanoğlu
- Department of Orthopedics, Buca Seyfi Demirsoy Training and Research Hospital, İzmir, Turkey
| | - Nizamettin Koçkara
- Department of Orthopedics, Erzincan Faculty of Medicine, Erzincan, Turkey.
| | - Nevzat Reha Tandoğan
- Department of Orthopedics, Haliç University Faculty of Medicine, İstanbul, Turkey
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90
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Onodera R, Sakamoto R, Taniguchi Y, Hirai S, Matsubayashi Y, Kato S, Oshima Y, Tanaka S. Congenital atlanto-occipital dislocation in a patient with Down syndrome: a case report. Skeletal Radiol 2023; 52:1785-1789. [PMID: 36773086 PMCID: PMC10348997 DOI: 10.1007/s00256-023-04297-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/17/2022] [Revised: 01/09/2023] [Accepted: 01/31/2023] [Indexed: 02/12/2023]
Abstract
Down syndrome, also known as trisomy 21, is associated with congenital cervical spine abnormalities, including atlantoaxial instability with or without os odontoideum, atlanto-occipital instability, and hypoplasia of the atlas. Herein, we report a case of Down syndrome complicated by congenital atlanto-occipital dislocation. The patient presented with severe cervical myelopathy at 13 years of age after a 10-year follow-up. Radiography and computed tomography revealed os odontoideum protruding into the foramen magnum and congenital anterior atlanto-occipital dislocation. Additionally, a bifurcated internal occipital crest with a thinned central portion of the occipital bone was noted. Magnetic resonance imaging revealed kyphotic alignment of the spinal cord with severe compression at the foramen magnum level. As the neurological impairment was partially improved by halo vest immobilization, we performed in situ O-C2 fusion with an iliac autograft and decompression of the foramen magnum and posterior arch of C1. An improvement was observed immediately after surgery. Two years after surgery, radiography and computed tomography showed solid O-C2 segment fusion. The accumulation of similar cases is essential for determining the prognosis or optimal treatment for this rare congenital condition.
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Affiliation(s)
- Ryoko Onodera
- Department of Orthopedic Surgery, The University of Tokyo Hospital, 7-3-1 Hongo, Bunkyo-Ku, Tokyo, 113-8655, Japan
| | - Ryuji Sakamoto
- Department of Orthopedic Surgery, The University of Tokyo Hospital, 7-3-1 Hongo, Bunkyo-Ku, Tokyo, 113-8655, Japan
| | - Yuki Taniguchi
- Department of Orthopedic Surgery, The University of Tokyo Hospital, 7-3-1 Hongo, Bunkyo-Ku, Tokyo, 113-8655, Japan.
- Surgical Center, The University of Tokyo Hospital, 7-3-1 Hongo, Bunkyo-Ku, Tokyo, 113-8655, Japan.
| | - Shima Hirai
- Department of Orthopedic Surgery, The University of Tokyo Hospital, 7-3-1 Hongo, Bunkyo-Ku, Tokyo, 113-8655, Japan
| | - Yoshitaka Matsubayashi
- Department of Orthopedic Surgery, The University of Tokyo Hospital, 7-3-1 Hongo, Bunkyo-Ku, Tokyo, 113-8655, Japan
| | - So Kato
- Department of Orthopedic Surgery, The University of Tokyo Hospital, 7-3-1 Hongo, Bunkyo-Ku, Tokyo, 113-8655, Japan
| | - Yasushi Oshima
- Department of Orthopedic Surgery, The University of Tokyo Hospital, 7-3-1 Hongo, Bunkyo-Ku, Tokyo, 113-8655, Japan
| | - Sakae Tanaka
- Department of Orthopedic Surgery, The University of Tokyo Hospital, 7-3-1 Hongo, Bunkyo-Ku, Tokyo, 113-8655, Japan
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91
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Zhang J, Yang K, Wang C, Gu W, Li X, Fu S, Song G, Wang J, Wu C, Zhu H, Shi Z. Risk factors for chronic ankle instability after first episode of lateral ankle sprain: A retrospective analysis of 362 cases. J Sport Health Sci 2023; 12:606-612. [PMID: 36931594 PMCID: PMC10466191 DOI: 10.1016/j.jshs.2023.03.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/22/2022] [Revised: 12/12/2022] [Accepted: 02/18/2023] [Indexed: 05/19/2023]
Abstract
BACKGROUND Chronic ankle instability (CAI) is a common sequela following an acute lateral ankle sprain (LAS). To treat an acute LAS more effectively and efficiently, it is important to identify patients at substantial risk for developing CAI. This study identifies magnetic resonance imaging (MRI) manifestations for predicting CAI development after a first episode of LAS and explores appropriate clinical indications for ordering MRI scans for these patients. METHODS All patients with a first-episode LAS who received plain radiograph and MRI scanning within the first 2 weeks after LAS from December 1, 2017 to December 1, 2019 were identified. Data were collected using the Cumberland Ankle Instability Tool at final follow-up. Demographic and other related clinical variables, including age, sex, body mass index, and treatment were also recorded. Univariable and multivariable analyses were performed successively to identify risk factors for CAI after first-episode LAS. RESULTS A total 131 out of 362 patients with a mean follow-up of 3.0 ± 0.6 years (mean ± SD; 2.0-4.1 years) developed CAI after first-episode LAS. According to multivariable regression, development of CAI after first-episode LAS was associated with 5 prognostic factors: age (odds ratio (OR) = 0.96, 95% confidence interval (95%CI): 0.93-1.00, p = 0.032); body mass index (OR = 1.09, 95%CI: 1.02-1.17, p = 0.009); posterior talofibular ligament injury (OR = 2.17, 95%CI: 1.05-4.48, p = 0.035); large bone marrow lesion of the talus (OR = 2.69, 95%CI: 1.30-5.58, p = 0.008), and Grade 2 effusion of the tibiotalar joint (OR = 2.61, 95%CI: 1.39-4.89, p = 0.003). When patients had at least 1 positive clinical finding in the 10-m walk test, anterior drawer test, or inversion tilt test, they had a 90.2% sensitivity and 77.4% specificity in terms of detecting at least 1 prognostic factor by MRI. CONCLUSION MRI scanning is valuable in predicting CAI after first-episode LAS for those patients with at least 1 positive clinical finding in the 10-m walk test, anterior drawer test, and inversion tilt test. Further prospective and large-scale studies are necessary for validation.
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Affiliation(s)
- Jieyuan Zhang
- National Center for Orthopaedics, Shanghai Sixth People's Hospital, Shanghai 200233, China; Department of Orthopedic Surgery, Shanghai Sixth People's Hospital, Shanghai 200233, China
| | - Kai Yang
- Department of Radiology, Shanghai Sixth People's Hospital, Shanghai 200233, China
| | - Cheng Wang
- National Center for Orthopaedics, Shanghai Sixth People's Hospital, Shanghai 200233, China; Department of Orthopedic Surgery, Shanghai Sixth People's Hospital, Shanghai 200233, China
| | - Wenqi Gu
- National Center for Orthopaedics, Shanghai Sixth People's Hospital, Shanghai 200233, China; Department of Orthopedic Surgery, Shanghai Sixth People's Hospital, Shanghai 200233, China
| | - Xueqian Li
- National Center for Orthopaedics, Shanghai Sixth People's Hospital, Shanghai 200233, China; Department of Orthopedic Surgery, Shanghai Sixth People's Hospital, Shanghai 200233, China
| | - Shaoling Fu
- National Center for Orthopaedics, Shanghai Sixth People's Hospital, Shanghai 200233, China; Department of Orthopedic Surgery, Shanghai Sixth People's Hospital, Shanghai 200233, China
| | - Guoxun Song
- National Center for Orthopaedics, Shanghai Sixth People's Hospital, Shanghai 200233, China; Department of Orthopedic Surgery, Shanghai Sixth People's Hospital, Shanghai 200233, China
| | - Jiazheng Wang
- National Center for Orthopaedics, Shanghai Sixth People's Hospital, Shanghai 200233, China; Department of Orthopedic Surgery, Shanghai Sixth People's Hospital, Shanghai 200233, China
| | - Chenglin Wu
- National Center for Orthopaedics, Shanghai Sixth People's Hospital, Shanghai 200233, China; Department of Orthopedic Surgery, Shanghai Sixth People's Hospital, Shanghai 200233, China
| | - Hongyi Zhu
- National Center for Orthopaedics, Shanghai Sixth People's Hospital, Shanghai 200233, China; Department of Orthopedic Surgery, Shanghai Sixth People's Hospital, Shanghai 200233, China; Institute of Clinical Research, National Center for Orthopaedics, Shanghai Sixth People's Hospital, Shanghai 200233, China.
| | - Zhongmin Shi
- National Center for Orthopaedics, Shanghai Sixth People's Hospital, Shanghai 200233, China; Department of Orthopedic Surgery, Shanghai Sixth People's Hospital, Shanghai 200233, China.
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Abstract
BACKGROUND Hindfoot varus deformity is a known risk factor for chronic lateral ankle instability (CLAI). The impact of this deformity on clinical results following arthroscopic lateral ankle ligament repair (ALLR) for CLAI has not been studied. METHODS Sixty-three ankles from 62 patients who received ALLR for CLAI were retrospectively examined. Preoperative plain radiographs were used to measure tibial articular surface (TAS) angles, and long axial hindfoot alignment radiographs were used to measure tibiocalcaneal angles (TCAs) pre- and postoperatively. Results included ratings on the Self-Administered Foot Evaluation Questionnaire (SAFE-Q) and recurrent ankle instability (respraining of the operated ankle following surgery). RESULTS Recurrent ankle instability, defined as incidence of any new ankle sprain after surgery reported in the follow-up period, occurred in 13 ankles. The TAS angles of these patients were significantly low, and their preoperative TCA was significantly high. Multivariate analysis showed that preoperative TCA was an independent risk factor for recurrent ankle instability. The threshold values for preoperative TCA for recurrent instability were determined via the receiver operating characteristic curve analysis to be 3.4 degrees. Patients were assigned to a low- or high-TCA group based on the reported average TCA (2.7 degrees) of healthy patients. In the high-TCA group, recurrent instability was significantly more frequent, and the scores on the pain subscale of the postoperative SAFE-Q were significantly lower. CONCLUSION Hindfoot varus alignment was associated with pooreroutcomes after ALLR. LEVEL OF EVIDENCE Level III, retrospective comparative study.
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Affiliation(s)
- Kensei Yoshimoto
- Department of Orthopedic Surgery, Tokyo Women's Medical University, Shinjuku-ku, Tokyo, Japan
- Orthopaedic Foot and Ankle Center, Shiseikai Daini Hospital, Setagaya-ku, Tokyo, Japan
| | - Masahiko Noguchi
- Department of Orthopedic Surgery, Tokyo Women's Medical University, Shinjuku-ku, Tokyo, Japan
- Orthopaedic Foot and Ankle Center, Shiseikai Daini Hospital, Setagaya-ku, Tokyo, Japan
| | - Hideyuki Maruki
- Orthopaedic Foot and Ankle Center, Shiseikai Daini Hospital, Setagaya-ku, Tokyo, Japan
- Department of Orthopaedic Surgery, Saitama Medical University Hospital, Moroyama, Saitama, Japan
| | - Ayako Tominaga
- Department of Orthopedic Surgery, Tokyo Women's Medical University, Shinjuku-ku, Tokyo, Japan
- Orthopaedic Foot and Ankle Center, Shiseikai Daini Hospital, Setagaya-ku, Tokyo, Japan
| | - Ken Okazaki
- Department of Orthopedic Surgery, Tokyo Women's Medical University, Shinjuku-ku, Tokyo, Japan
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Livesey MG, Bedrin MD, Baird MD, Tran A, Weir TB, Hasan SA, Gilotra MN, Kilcoyne KG, Dickens JF. Acromion morphology is associated with glenoid bone loss in posterior glenohumeral instability. J Shoulder Elbow Surg 2023; 32:1850-1856. [PMID: 37003427 DOI: 10.1016/j.jse.2023.03.005] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/11/2022] [Revised: 02/22/2023] [Accepted: 03/01/2023] [Indexed: 04/03/2023]
Abstract
BACKGROUND The acromion morphology in a shoulder with posterior instability differs from that of a shoulder without glenohumeral instability. Specifically, the acromion with a flatter sagittal tilt, greater posterior acromial height, and less posterior coverage is associated with posterior instability. However, the association between acromion morphology and glenoid bone loss (GBL) in the setting of posterior glenohumeral instability has not previously been investigated. The purpose of this study was to determine whether acromial morphology influences the extent or pattern of posterior GBL in a cohort of patients with posterior glenohumeral instability. METHODS This multicenter retrospective study identified 89 shoulders with unidirectional posterior glenohumeral instability. Total area GBL was measured using the best-fit circle method on magnetic resonance imaging (MRI). Shoulders were divided into 3 groups: (1) no GBL (n = 30), (2) GBL 0%-13.5% (n = 45), or (3) GBL ≥13.5% (n = 14). Acromion measurements were performed on MRI and included acromial tilt, posterior acromial height, anterior acromial coverage, and posterior acromial coverage. RESULTS Patients without GBL had a steeper acromial tilt (58.5° ± 1.4°) compared with those with 0%-13.5% GBL (64.3° ± 1.5°) or GBL ≥13.5% (67.7° ± 1.8°) (P = .004). Patients without GBL also had greater posterior coverage (65.4° ± 1.7°) compared with those with GBL (60.3° ± 1.4°) (P = .015). Posterior acromion height was not significantly different among groups. CONCLUSION The results demonstrate that an acromion with a flatter sagittal tilt and less posterior coverage is associated with GBL in the setting of posterior glenohumeral instability. This is important to consider as posterior GBL has been identified as a risk factor for failure of posterior soft tissue-stabilizing procedures.
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Affiliation(s)
| | - Michael D Bedrin
- Department of Orthopaedic Surgery, Walter Reed National Military Medical Center Uniformed Services University of Health Sciences, Bethesda, MD, USA
| | - Michael D Baird
- Department of Orthopaedic Surgery, Walter Reed National Military Medical Center Uniformed Services University of Health Sciences, Bethesda, MD, USA
| | - Andrew Tran
- University of Maryland Medical Center, Baltimore, MD, USA
| | - Tristan B Weir
- University of Maryland Medical Center, Baltimore, MD, USA
| | - S Ashfaq Hasan
- University of Maryland Medical Center, Baltimore, MD, USA
| | | | - Kelly G Kilcoyne
- Department of Orthopaedic Surgery, Walter Reed National Military Medical Center Uniformed Services University of Health Sciences, Bethesda, MD, USA
| | - Jonathan F Dickens
- Department of Orthopaedic Surgery, Walter Reed National Military Medical Center Uniformed Services University of Health Sciences, Bethesda, MD, USA; Department of Orthopaedics, Duke University, Durham, NC, USA; Department of Orthopaedics, Institute of Clinical Sciences, Sahlgrenska Academy, Gothenburg University, Gothenburg, Sweden.
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Helal A, Marei AE, Shafik A, Elforse E. Clinical and radiological outcomes of a modified anatomic posterolateral corner reconstruction technique using a single semitendinosus autograft. Arch Orthop Trauma Surg 2023; 143:5767-5776. [PMID: 37140604 PMCID: PMC10449660 DOI: 10.1007/s00402-023-04862-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/08/2022] [Accepted: 03/26/2023] [Indexed: 05/05/2023]
Abstract
PURPOSE We aimed to assess the clinical and radiological outcomes of a modified anatomical posterolateral corner (PLC) reconstruction technique using a single autograft. METHODS This prospective case series included 19 patients with a posterolateral corner injury. The posterolateral corner was reconstructed using a modified anatomical technique that utilized adjustable suspensory fixation on the tibial side. Patients were evaluated subjectively using the international knee documentation form (IKDC), Lysholm, and Tegner activity scales and objectively by measuring the tibial external rotation angle, knee hyperextension, and lateral joint line opening on stress varus radiographs before and after surgery. The patients were followed-up for a minimum of 2 years. RESULTS Both IKDC and Lysholm knee scores significantly improved from 49 and 53 preoperatively to 77 and 81 postoperatively, respectively. The tibial external rotation angle and knee hyperextension showed significant reduction to normal values at the final follow-up. However, the lateral joint line opening measured on the varus stress radiograph remained larger than the contralateral normal knee. CONCLUSION Posterolateral corner reconstruction with a hamstring autograft using a modified anatomical reconstruction technique significantly improved both the subjective patient scores and objective knee stability. However, the varus stability was not completely restored compared with the uninjured knee. LEVEL OF EVIDENCE Prospective case series (Level of evidence IV).
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Affiliation(s)
- Ahmed Helal
- Department of Orthopaedics, Tanta Faculty of Medicine, Tanta University, El-Gash St. Medical Campus, Tanta, El-Gharbia Governorate, Egypt.
| | - Abdelhakim E Marei
- Department of Orthopaedics, Tanta Faculty of Medicine, Tanta University, El-Gash St. Medical Campus, Tanta, El-Gharbia Governorate, Egypt
| | - Ahmed Shafik
- Department of Orthopaedics, Tanta Faculty of Medicine, Tanta University, El-Gash St. Medical Campus, Tanta, El-Gharbia Governorate, Egypt
| | - Elsayed Elforse
- Department of Orthopaedics, Tanta Faculty of Medicine, Tanta University, El-Gash St. Medical Campus, Tanta, El-Gharbia Governorate, Egypt
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Demehri S, Ibad HA. Dynamic Imaging Using Four-dimensional CT Helps Detect Subtle Carpal Instability. Radiology 2023; 308:e231591. [PMID: 37698475 DOI: 10.1148/radiol.231591] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/13/2023]
Affiliation(s)
- Shadpour Demehri
- From the Russell H. Morgan Department of Radiology and Radiological Science, Johns Hopkins University School of Medicine, 601 N Caroline St, JHOC 5165, Baltimore, MD 21287
| | - Hamza A Ibad
- From the Russell H. Morgan Department of Radiology and Radiological Science, Johns Hopkins University School of Medicine, 601 N Caroline St, JHOC 5165, Baltimore, MD 21287
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Cerezal L, Del Piñal F, Atzei A, Schmitt R, Becce F, Klich M, Bień M, de Jonge MC, Teh J, Boutin RD, Toms AP, Omoumi P, Fritz J, Bazzocchi A, Shahabpour M, Zanetti M, Llopis E, Blum A, Lalam RK, Reto S, Afonso PD, Mascarenhas VV, Cotten A, Drapé JL, Bierry G, Pracoń G, Dalili D, Mespreuve M, Garcia-Elias M, Bain GI, Mathoulin CL, Van Overstraeten L, Szabo RM, Camus EJ, Luchetti R, Chojnowski AJ, Gruenert JG, Czarnecki P, Corella F, Nagy L, Yamamoto M, Golubev IO, van Schoonhoven J, Goehtz F, Sudoł-Szopińska I, Dietrich TJ. Interdisciplinary consensus statements on imaging of DRUJ instability and TFCC injuries. Eur Radiol 2023; 33:6322-6338. [PMID: 37191922 DOI: 10.1007/s00330-023-09698-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2023] [Revised: 03/09/2023] [Accepted: 04/05/2023] [Indexed: 05/17/2023]
Abstract
OBJECTIVES The purpose of this agreement was to establish evidence-based consensus statements on imaging of distal radioulnar joint (DRUJ) instability and triangular fibrocartilage complex (TFCC) injuries by an expert group using the Delphi technique. METHODS Nineteen hand surgeons developed a preliminary list of questions on DRUJ instability and TFCC injuries. Radiologists created statements based on the literature and the authors' clinical experience. Questions and statements were revised during three iterative Delphi rounds. Delphi panelists consisted of twenty-seven musculoskeletal radiologists. The panelists scored their degree of agreement to each statement on an 11-item numeric scale. Scores of "0," "5," and "10" reflected complete disagreement, indeterminate agreement, and complete agreement, respectively. Group consensus was defined as a score of "8" or higher for 80% or more of the panelists. RESULTS Three of fourteen statements achieved group consensus in the first Delphi round and ten statements achieved group consensus in the second Delphi round. The third and final Delphi round was limited to the one question that did not achieve group consensus in the previous rounds. CONCLUSIONS Delphi-based agreements suggest that CT with static axial slices in neutral rotation, pronation, and supination is the most useful and accurate imaging technique for the work-up of DRUJ instability. MRI is the most valuable technique in the diagnosis of TFCC lesions. The main indication for MR arthrography and CT arthrography are Palmer 1B foveal lesions of the TFCC. CLINICAL RELEVANCE STATEMENT MRI is the method of choice for assessing TFCC lesions, with higher accuracy for central than peripheral abnormalities. The main indication for MR arthrography is the evaluation of TFCC foveal insertion lesions and peripheral non-Palmer injuries. KEY POINTS • Conventional radiography should be the initial imaging technique in the assessment of DRUJ instability. CT with static axial slices in neutral rotation, pronation, and supination is the most accurate method for evaluating DRUJ instability. • MRI is the most useful technique in diagnosing soft-tissue injuries causing DRUJ instability, especially TFCC lesions. • The main indications for MR arthrography and CT arthrography are foveal lesions of the TFCC.
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Affiliation(s)
- Luis Cerezal
- Radiology Department, Diagnóstico Médico Cantabria (DMC), Castilla 6-Bajo, 39002, Santander, Spain.
| | - Francisco Del Piñal
- Instituto de Cirugía Plástica Y de La Mano, Serrano 58 1B, 28001, Madrid, Spain
| | - Andrea Atzei
- Pro-Mano, Treviso, Italy
- Ospedale Koelliker, Corso G. Ferraris 247, 10134, Torino, Italy
| | - Rainer Schmitt
- Department of Radiology, University Hospital LMU Munich, Ziemssenstraße 5, 80336, München, Germany
- Department of Radiology, University Hospital Würzburg, Oberdürrbacher Straße 6, 97080, Würzburg, Germany
| | - Fabio Becce
- Department of Diagnostic and Interventional Radiology, Lausanne University Hospital, Lausanne, Switzerland
- University of Lausanne, Rue du Bugnon 46, 1011, Lausanne, Switzerland
| | - Maciej Klich
- Department of Traumatology and Orthopaedics, Postgraduate Medical Center, A. Gruca Teaching Hospital, Otwock, Poland
| | - Maciej Bień
- Gamma Medical Center, Broniewskiego 3, 01-785, Warsaw, Poland
| | - Milko C de Jonge
- Department of Radiology, St. Antonius Hospital Utrecht, Utrecht, The Netherlands
| | - James Teh
- Department of Radiology, Nuffield Orthopaedic Centre, Oxford University Hospitals NHS Trust, Oxford, UK
| | - Robert Downey Boutin
- Department of Radiology, Stanford University School of Medicine, 300 Pasteur Drive, MC-5105, Stanford, CA, 94305, USA
| | - Andoni Paul Toms
- Norwich Medical School, University of East Anglia, Norwich Research Park, Norwich, NR4 7TJ, UK
| | - Patrick Omoumi
- Department of Diagnostic and Interventional Radiology, Lausanne University Hospital and University of Lausanne, Rue du Bugnon 46, 1011, Lausanne, Switzerland
| | - Jan Fritz
- Department of Radiology, New York University Grossman School of Medicine, NYU Langone Health, 660 First Avenue, New York, NY, 10016, USA
| | - Alberto Bazzocchi
- Diagnostic and Interventional Radiology, IRCCS Istituto Ortopedico Rizzoli, Via G. C. Pupilli 1, 40136, Bologna, Italy
| | - Maryam Shahabpour
- Department of Radiology, Universitair Ziekenhuis Brussel, Vrije Universiteit Brussel, Brussels, Belgium
| | - Marco Zanetti
- Kantonsspital Baden, Im Ergel 1, CH-5404, Baden, Switzerland
| | - Eva Llopis
- Hospital de La Ribera. IMSKE. Valencia, Paseo Ciudadela 13, 46003, Valencia, Spain
| | - Alain Blum
- Guilloz Imaging Department, Central Hospital, University Hospital Center of Nancy, UDL, 29 Avenue du Maréchal de Lattre de Tassigny, 54035, Nancy, France
| | - Radhesh Krishna Lalam
- Department of Radiology, Robert Jones and Agnes Hunt Orthopaedic Hospital, Oswestry, UK
| | - Sutter Reto
- Balgrist University Hospital, University of Zurich, Forchstrasse 340, CH-8008 Radiology, Zurich, Switzerland
- Faculty of Medicine, University of Zurich, Pestalozzistrasse 3, 8091, Zurich, Switzerland
| | - P Diana Afonso
- Imaging Center, Radiology Department, Musculoskeletal Imaging Unit, Hospital da Luz, Grupo Luz Saúde, Av. Lusiada 100, 1500-650, Lisbon, Portugal
- Hospital Particular da Madeira, HPA, Madeira, Portugal
| | - Vasco V Mascarenhas
- Imaging Center, Radiology Department, Musculoskeletal Imaging Unit, Hospital da Luz, Grupo Luz Saúde, Av. Lusiada 100, 1500-650, Lisbon, Portugal
- AIRC, Advanced Imaging Research Consortium, Lisbon, Portugal
| | - Anne Cotten
- Musculoskeletal Radiology Department, Lille University Hospital Center, 59037, Lille, France
- Lille University School of Medicine, Lille, France
| | - Jean-Luc Drapé
- Service de Radiologie B, AP-HP Centre, Groupe Hospitalier Cochin, Université de Paris, 75014, Paris, France
| | - Guillaume Bierry
- MSK Imaging, University Hospital, 1 Avenue Molière, 67098, Strasbourg Cedex, France
| | - Grzegorz Pracoń
- Gamma Medical Center, Broniewskiego 3, 01-785, Warsaw, Poland
| | - Danoob Dalili
- Academic Surgical Unit, South West London Elective Orthopaedic Centre (SWLEOC), Dorking Road, Epsom, KT18 7EG, London, UK
| | - Marc Mespreuve
- Department of Medical Imaging, University Hospital Ghent, Corneel Heymanslaan 10, 9000, Ghent, Belgium
| | - Marc Garcia-Elias
- Hand and Upper Extremity Surgery, Creu Blanca, Pº Reina Elisenda 57, 08022, Barcelona, Spain
| | - Gregory Ian Bain
- Department of Orthopaedic Surgery, Flinders Medical Centre and Flinders University, Adelaide, South, Australia
| | | | - Luc Van Overstraeten
- Hand and Foot Surgery Unit (HFSU) SPRL, Rue Pierre Caille 9, 7500, Tournai, Belgium
- Department of Orthopaedics and Traumatology, Erasme University Hospital, Route de Lennik 808, Brussels, Belgium
| | - Robert M Szabo
- Department of Orthopaedic Surgery, Health System, University of California Davis, 4800 Y Street, Sacramento, CA, 95817, USA
| | - Emmanuel J Camus
- IMPPACT Hand Surgery Unit, Clinique de Lille Sud, 94 Bis Rue Gustave Delory, Lesquin, France
- Laboratoire d'anatomie Fonctionnelle, ULB, Bruxelles, Belgium
| | | | - Adrian Julian Chojnowski
- Orthopaedics and Trauma Department, Hand and Upper Limb Surgery, Norfolk and Norwich University NHS Trust Hospital, Colney Lane, Norwich, NR4 7UY, UK
| | - Joerg G Gruenert
- Department of Hand and Plastic Surgery Berit Klinik, Klosterstrasse 19, 9403, Goldach, Switzerland
| | - Piotr Czarnecki
- Traumatology, Orthopaedics and Hand Surgery, Poznan University of Medical Sciences, Ul. 28 Czerwca 1956R. Nr 135/147, 61-545, Poznań, Poland
| | - Fernando Corella
- Orthopedic and Trauma Department. Hospital, Universitario Infanta Leonor, C/ Gran Vía del Este N° 80, 28031, Madrid, Spain
- Hand Surgery Unit. Hospital Universitario Quirónsalud Madrid, Madrid, Spain
- Surgery Department, School of Medicine, Universidad Complutense, Madrid, Spain
| | - Ladislav Nagy
- Division for Hand Surgery and Surgery of Peripheral Nerves, Balgrist University Hospital, University of Zurich, Forchstrasse 340, Zurich, Switzerland
| | - Michiro Yamamoto
- Department of Hand Surgery, Nagoya University, 65 Tsurumai-Cho, Showa-Ku, Nagoya, Japan
| | - Igor O Golubev
- Hand and Microsurgery Division, Priorov Central Institute of Traumatology and Orthopedy, Moscow, Russia
| | - Jörg van Schoonhoven
- Clinic for Hand Surgery, Rhön Medical Center, Campus Bad Neustadt, Von Guttenberg-Straße 11, 97616, Bad Neustadt/Saale, Germany
| | - Florian Goehtz
- Clinic for Hand Surgery, Rhön Medical Center, Campus Bad Neustadt, Von Guttenberg-Straße 11, 97616, Bad Neustadt/Saale, Germany
| | - Iwona Sudoł-Szopińska
- Department of Radiology, National Institute of Geriatrics, Rheumatology and Rehabilitation, Spartańska 1, 02-637, Warsaw, Poland
| | - Tobias Johannes Dietrich
- Faculty of Medicine, University of Zurich, Pestalozzistrasse 3, 8091, Zurich, Switzerland
- Division of Radiology and Nuclear Medicine, Kantonsspital St. Gallen, Rorschacherstrasse 95, 9007, St. Gallen, Switzerland
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Aydıngöz Ü, Yıldız AE, Huri G. Glenoid Track Assessment at Imaging in Anterior Shoulder Instability: Rationale and Step-by-Step Guide. Radiographics 2023; 43:e230030. [PMID: 37410625 DOI: 10.1148/rg.230030] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/08/2023]
Abstract
Anterior shoulder dislocation is the most common form of joint instability in humans, usually resulting in soft-tissue injury to the glenohumeral capsuloligamentous and labral structures. Bipolar bone lesions in the form of fractures of the anterior glenoid rim and posterolateral humeral head are often associated with anterior shoulder dislocation and can be a cause or result of recurrent dislocations. Glenoid track assessment is an evolving concept that incorporates the pathomechanics of anterior shoulder instability into its management. Currently widely endorsed by orthopedic surgeons, this concept has ramifications for prognostication, treatment planning, and outcome assessment of anterior shoulder dislocation. The glenoid track is the contact zone between the humeral head and glenoid during shoulder motion from the neutral position to abduction and external rotation. Two key determinants of on-track or off-track status of a Hill-Sachs lesion (HSL) are the glenoid track width (GTW) and Hill-Sachs interval (HSI). If the GTW is less than the HSI, an HSL is off track. If the GTW is greater than the HSI, an HSL is on track. The authors focus on the rationale behind the glenoid track concept and explain stepwise assessment of the glenoid track at CT or MRI. Off-track to on-track conversion is a primary goal in stabilizing the shoulder with anterior instability. The key role that imaging plays in glenoid track assessment warrants radiologists' recognition of this concept along with its challenges and pitfalls and the production of relevant and actionable radiology reports for orthopedic surgeons-to the ultimate benefit of patients. ©RSNA, 2023 Online supplemental material is available for this article. Quiz questions for this article are available through the Online Learning Center.
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Affiliation(s)
- Üstün Aydıngöz
- From the Department of Radiology (Ü.A., A.E.Y.) and Department of Orthopedics and Traumatology (G.H.), Hacettepe University School of Medicine, 06230 Ankara, Turkey
| | - Adalet Elçin Yıldız
- From the Department of Radiology (Ü.A., A.E.Y.) and Department of Orthopedics and Traumatology (G.H.), Hacettepe University School of Medicine, 06230 Ankara, Turkey
| | - Gazi Huri
- From the Department of Radiology (Ü.A., A.E.Y.) and Department of Orthopedics and Traumatology (G.H.), Hacettepe University School of Medicine, 06230 Ankara, Turkey
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Flores Meca A, Reyes Sánchez S, Quesada Molina C, López Soto V. Benign acquired subluxation of the knee. Knee 2023; 43:122-128. [PMID: 37399630 DOI: 10.1016/j.knee.2023.06.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/16/2023] [Revised: 05/20/2023] [Accepted: 06/06/2023] [Indexed: 07/05/2023]
Abstract
PURPOSE To describe several cases of recurrent femorotibial subluxation episodes in pediatric patients, to review the existing literature about this rare entity, and to characterize its different clinical presentations. MATERIALS AND METHODS The study included a series of three cases seen at our center. All patients underwent a structured anamnesis and complete physical examination, as well as a basic radiological study. One underwent magnetic resonance imaging. A literature search was performed in the main databases under the terms "Snapping knee" and "Femorotibial subluxation in child" to consult previous studies. RESULTS Clinical onset was between 6 and 14 months of age, with episodes of femorotibial subluxations associated with irritability or fever. Examination showed increased joint laxity and a discrete genu valgum. Imaging studies showed no anatomical alterations. The symptoms gradually decreased in intensity and frequency. Two of the patients were treated with extension splints with no differences between them or with respect to the patient in whom therapeutic abstention was chosen. CONCLUSIONS There are two independent presentations of the pathology that have not been well differentiated so far. The first (patients described from our clinical practice) is in initially healthy children who begin with episodes of subluxation in relation to febrile episodes or irritability, with an anodyne physical examination, and benign evolution with progressive reduction of the episodes even without treatment. The second presents as episodes of anterior subluxation since birth in patients with associated pathologies (usually spinal), anterior cruciate ligament instability, and need for surgical treatment to reduce the number of episodes.
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Affiliation(s)
- Alberto Flores Meca
- Department of Orthopaedic Surgery and Traumatology, Hospital Universitario Virgen de las Nieves, Granada, Spain.
| | - Sergio Reyes Sánchez
- Department of Orthopaedic Surgery and Traumatology, Hospital Universitario Virgen de las Nieves, Granada, Spain
| | - Carlos Quesada Molina
- Department of Orthopaedic Surgery and Traumatology, Hospital Universitario Virgen de las Nieves, Granada, Spain
| | - Víctor López Soto
- Department of Orthopaedic Surgery and Traumatology, Hospital Universitario Virgen de las Nieves, Granada, Spain
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Tao H, Dan Y, Hu Y, Xie Y, Lu R, Li X, Wang C, Zhang C, Wang W, Yang G, Chen S. Using Radiomics to Detect Subtle Architecture Changes of Cartilage and Subchondral Bone in Chronic Lateral Ankle Instability Patients Based on MRI PD-FS Images. Acad Radiol 2023; 30:1667-1677. [PMID: 36470734 DOI: 10.1016/j.acra.2022.11.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2022] [Revised: 11/08/2022] [Accepted: 11/13/2022] [Indexed: 12/03/2022]
Abstract
RATIONALE AND OBJECTIVES To use radiomics to detect the subtle changes of cartilage and subchondral bone in chronic lateral ankle instability (CLAI) patients based on MRI PD-FS images. MATERIALS AND METHODS A total of 215 CLAI patients and 186 healthy controls were included and randomly split into a training set (n=281, patients/controls=151/130) and an independent test set (n=120, patients/controls=64/56). They underwent ankle MRI examinations. On sagittal PD-FS images, eight cartilage regions and their corresponding subchondral bone regions were drawn. Radiomics models of cartilage, subchondral bone and combined cartilage and subchondral bone were built to differentiate CLAI patients from controls. A receiver operating characteristic curve (ROC) was used to assess the model's performance. RESULTS In the test dataset, the cartilage model yielded an area under the curve (AUC) of 0.0.912 (95% confidence interval (CI): 0.858-0.965, p<0.001), a sensitivity of 0.859, a specificity of 0.893, a negative predictive value (NPV) of 0.848, and a positive predictive value (PPV) of 0.902. The subchondral bone model yielded an AUC of 0.837 (95% CI: 0.766-0.907, p<0.001), a sensitivity of 0.875, a specificity of 0.714, an NPV of 0.833, and a PPV of 0.778. For the combined model, the AUC was 0.921 (95% CI: 0.863-0.972, p<0.001), sensitivity was 0.844, specificity was 0.911, NPV was 0.836, and PPV was 0.915, whose AUC was higher than those of both the cartilage model and the subchondral bone model. CONCLUSION The combined radiomics model achieved satisfying performance in detecting potential early architectural changes in cartilage and subchondral bone for CLAI patients.
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Affiliation(s)
- Hongyue Tao
- Department of Radiology and Institute of Medical Functional and Molecular Imaging, Huashan Hospital, Fudan University, 12 Wulumuqizhong Road, Shanghai, 200040, China
| | - Yibo Dan
- Shanghai Key Laboratory of Magnetic Resonance, East China Normal University, Shanghai, China
| | - Yiwen Hu
- Department of Radiology and Institute of Medical Functional and Molecular Imaging, Huashan Hospital, Fudan University, 12 Wulumuqizhong Road, Shanghai, 200040, China
| | - Yuxue Xie
- Department of Radiology and Institute of Medical Functional and Molecular Imaging, Huashan Hospital, Fudan University, 12 Wulumuqizhong Road, Shanghai, 200040, China
| | - Rong Lu
- Department of Radiology and Institute of Medical Functional and Molecular Imaging, Huashan Hospital, Fudan University, 12 Wulumuqizhong Road, Shanghai, 200040, China
| | - Xiangwen Li
- Department of Radiology and Institute of Medical Functional and Molecular Imaging, Huashan Hospital, Fudan University, 12 Wulumuqizhong Road, Shanghai, 200040, China
| | - Chenglong Wang
- Shanghai Key Laboratory of Magnetic Resonance, East China Normal University, Shanghai, China
| | - Chengxiu Zhang
- Shanghai Key Laboratory of Magnetic Resonance, East China Normal University, Shanghai, China
| | - Weiwei Wang
- Department of Radiology and Institute of Medical Functional and Molecular Imaging, Huashan Hospital, Fudan University, 12 Wulumuqizhong Road, Shanghai, 200040, China
| | - Guang Yang
- Shanghai Key Laboratory of Magnetic Resonance, East China Normal University, Shanghai, China
| | - Shuang Chen
- Department of Radiology and Institute of Medical Functional and Molecular Imaging, Huashan Hospital, Fudan University, 12 Wulumuqizhong Road, Shanghai, 200040, China,; National Clinical Research Center for Aging and Medicine, Huashan Hospital, Fudan University,12 Wulumuqizhong Road, Shanghai, 200040, China.
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Wolf J, Cottom J, Srour J, Rubin L. Arthroscopic Lateral Stabilization. Clin Podiatr Med Surg 2023; 40:495-507. [PMID: 37236686 DOI: 10.1016/j.cpm.2023.03.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
The indications and procedures for arthroscopy of the ankle and subtalar joints continues to increase. Lateral ankle instability is a common pathology that may require surgery to repair injured structures of patients nonresponsive to conservative management. Common surgical methods generally include ankle arthroscopy with subsequent open approach to repair/reconstruct the ankle ligament(s). This article discusses two different approaches to repairing lateral ankle instability through an arthroscopic approach. The arthroscopic modified Brostrom procedure creates a strong repair with minimal soft tissue dissection, and is a reliable, minimally invasive approach to lateral ankle stabilization. The arthroscopic double ligament stabilization procedure creates a robust reconstruction of the anterior talofibular and calcaneal fibular ligaments with minimal soft tissue dissection.
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Affiliation(s)
- Joseph Wolf
- Florida Orthopedic Foot and Ankle Center, 4913 Harroun Road, Suite 1, Sylvania, OH 43560, USA
| | - James Cottom
- Florida Orthopedic Foot and Ankle Center Fellowship, 5741 Bee Ridge Road, Suite 490, Sarasota, Fl 34233, USA
| | - Jonathon Srour
- Virginia Fellowship in Reconstruction, Revision, and Limb Preservation Surgery of the Foot and Ankle, 905 South Willow Avenue, Cookeville, TN 38501, USA
| | - Laurence Rubin
- Virginia Fellowship in Reconstruction, Revision, and Limb Preservation Surgery of the Foot and Ankle, 7016 Lee Park Road, Suite 105, Mechanicsville, VA 23111, USA.
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