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Çağlar C, Akçaalan S, Akkaya M, Doğan M. Does Morphology of the Shoulder Joint Play a Role in the Etiology of Rotator Cuff Tear? Curr Med Imaging 2024; 20:e260423216209. [PMID: 37170976 DOI: 10.2174/1573405620666230426141113] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2022] [Revised: 03/03/2023] [Accepted: 03/10/2023] [Indexed: 05/13/2023]
Abstract
BACKGROUND The etiology of rotator cuff tears (RCTs) have been investigated for years and many underlying causes have been identified. Shoulder joint morphology is one of the extrinsic causes of RCTs. AIM Morphometric measurements on MRI sections determined which parameters are an important indicator of RCT in patients with shoulder pain. The aim of this study was to determine the risk factors in the etiology of RCTs by evaluating the shoulder joint morphology with the help of previously defined radiological parameters. METHOD Between January 2019-December 2020, 408 patients (40-70 years old) who underwent shoulder MRI and met the criteria were included in the study. There were 202 patients in the RCT group and 206 patients in the control group. Acromion type, acromial index (AI), critical shoulder angle (CSA), acromiohumeral distance (AHD), lateral acromial angle (LAA), acromial angulation (AA), acromion-greater tuberosity impingement index (ATI), and glenoid version angle (GVA) were measured from the MRI images of the patients. RESULTS AI (0.64 vs. 0.60, p = 0.003) CSA (35.3° vs. 32.4°, p = 0.004), ATI (0.91 vs. 0.83, P < 0.001), and AA (13.6° vs. 11.9°, p = 0.011) values were higher in the RCT group than in the control group and the difference was significant. AHD (8.1 mm vs. 9.9 mm, P < 0.001), LAA (77.2° vs. 80.9°, p = 0.004) and GVA (-3.9° vs. -2.5°, P < 0.001) values were lower in the RCT group than in the control group, and again the difference was significant. According to the receiver operating characteristic curve analysis, the cutoff values were 0.623 for AI and 0.860 for ATI. CONCLUSION Acromion type, AI, CSA, AHD, LAA, AA, ATI, and GVA are suitable radiological parameters to evaluate shoulder joint morphology. High AI, CSA, AA, ATI, GVA and low AHD and LAA are risk factors for RCT.
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Affiliation(s)
- Ceyhun Çağlar
- Department of Orthopedics and Traumatology, Ankara City Hospital, Ankara, Turkey
| | - Serhat Akçaalan
- Department of Orthopedics and Traumatology, Kırıkkale Training and Research Hospital, Kırıkkale, Turkey
| | - Mustafa Akkaya
- Department of Orthopedics and Traumatology, Ankara Yıldırım Beyazıt University, Ankara, Turkey
| | - Metin Doğan
- Department of Orthopedics and Traumatology, Ankara Yıldırım Beyazıt University, Ankara, Turkey
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Schiefer M, Naliato E, Oliveira R, Carmo LTD, Fontenelle CRDC, Motta Filho GDR. MRI is a Reliable Method for Measurement of Critical Shoulder Angle and Acromial Index. Rev Bras Ortop 2023; 58:e719-e726. [PMID: 37908539 PMCID: PMC10615611 DOI: 10.1055/s-0043-1776136] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2023] [Accepted: 05/05/2023] [Indexed: 11/02/2023] Open
Abstract
Objective The objectives of this study are to compare absolute values of acromial index (AI) and critical shoulder angle (CSA) obtained in both radiographs and magnetic resonance image (MRI) of the shoulder; and to compare the interobserver and intra-observer agreement for AI and CSA values measured in these image modalities. Methods Patients who had medical indication of investigating shoulders conditions through radiographs and MRI were included. Images were taken to two fellowship-trained shoulder surgeons, which conducted measurements of AI and CSA in radiographs and in MRI. Twelve weeks after the first evaluation, a second evaluation was conducted. Inter- and intra-observer reliability was presented as an Intraclass Correlation Coefficient (ICC) and agreement was classified according to Landis & Koch criteria. The differences between two measurements were evaluated using Bland-Altman plots. Results 134 shoulders in 124 subjects were included. Mean intra-observer ICC for CSA in X-rays and in MRI were 0.936 and 0.940, respectively; for AI, 0.908 and 0.022. Mean inter-observer ICC for CSA were 0.892 and 0.752 in X-rays and MRI respectively; for AI, ICC values were 0.849 and 0.685. All individual analysis reached statistical power ( p < 0.001). Mean difference for AI values measured in X-rays and in MRI was 0.01 and 0.03 for observers 1 and 2, respectively. Mean difference for CSA values obtained in X-rays and MRI was 0.16 and 0.58 for observers 1 and 2, respectively. Conclusion Both MRI and X-rays provided high intra- and interobserver agreement for measurement of AI and CSA. Absolute values found for AI and CSA were highly correlated in both image modalities. These findings suggest that MRI is a suitable method to measure AI and CSA. Level of Evidence II , Diagnostic Study.
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Affiliation(s)
- Márcio Schiefer
- Professor adjunto, Departamento de Ortopedia, Faculdade de Medicina, Universidade Federal do Rio de Janeiro (UFRJ), Rio de Janeiro, RJ, Brasil
- Cirurgião ortopédico, Instituto Nacional de Traumatologia e Ortopedia, Rio de Janeiro, RJ, Brasil
| | - Erika Naliato
- Professor adjunto, Departamento de Ortopedia, Faculdade de Medicina, Universidade Federal do Rio de Janeiro (UFRJ), Rio de Janeiro, RJ, Brasil
| | - Roberto Oliveira
- Cirurgião ortopédico, ex-membro do Grupo de Ombro e Cotovelo do Instituto Nacional de Traumatologia e Ortopedia, Rio de Janeiro, RJ, Brasil
| | - Leonardo Tadeu do Carmo
- Cirurgião ortopédico, ex-membro do Grupo de Ombro e Cotovelo do Instituto Nacional de Traumatologia e Ortopedia, Rio de Janeiro, RJ, Brasil
| | - César Rubens da Costa Fontenelle
- Professor adjunto, Departamento de Ortopedia, Faculdade de Medicina, Universidade Federal do Rio de Janeiro (UFRJ), Rio de Janeiro, RJ, Brasil
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Wu H, Zuo Z, Li Y, Song H, Hu W, Chen J, Xie C, Lin L. Anatomic characteristics of shoulder based on MRI accurately predict incomplete rotator cuff injuries in patients: relevance for predictive, preventive, and personalized healthcare strategies. EPMA J 2023; 14:553-570. [PMID: 37605646 PMCID: PMC10439871 DOI: 10.1007/s13167-023-00333-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2023] [Accepted: 07/03/2023] [Indexed: 08/23/2023]
Abstract
Background and PPPM-related working hypothesis In the diagnosis of incomplete rotator cuff injuries (IRCI), magnetic resonance imaging (MRI) and ultrasound examination often have false-positive and false-negative results, while arthroscopy is expensive, invasive, and complex. From the strategy of predictive, preventive, and personalized medicine (PPPM), shoulder anatomical characteristics based on MRI have been demonstrated to accurately predict IRCI and their clinical applicability for personalized prediction of IRCI. Aims This study aimed to develop and validate a nomogram based on anatomical features of the shoulder on MRI to identify IRCI for PPPM healthcare strategies. Methods The medical information of 257 patients undergoing preoperative MRI examination was retrospectively reviewed and served as the primary cohort. Partial-thickness rotator cuff tears (RCTs) and tendinopathy observed under arthroscopy were considered IRCI. Using logistic regression analyses and least absolute shrinkage and selection operator (LASSO), IRCI was identified among various preoperative factors containing shoulder MRI and clinical features. A nomogram was constructed and subjected to internal and external validations (80 patients). Results The following eight independent risk factors for IRCI were identified:AgeThe left injured sidesThe Goutallier classification of supraspinatus in oblique coronal positionThe Goutallier classification of supraspinatus in the axial positionAcromial thicknessAcromiohumeral distanceCoracohumeral distanceAbnormal acromioclavicular joint signalsThe nomogram accurately predicted IRCI in the development (C-index, 0.932 (95% CI, 0.891, 0.973)) and validation (C-index, 0.955 (95% CI, 0.918, 0.992)) cohorts. The calibration curve was consistent between the predicted IRCI probability and the actual IRCI ratio of the nomogram. The decision curve analysis and clinical impact curves demonstrated that the model had high clinical applicability. Conclusions Eight independent factors that accurately predicted IRCI were determined using MRI anatomical findings. These personalized factors can prevent unnecessary diagnostic interventions (e.g., arthroscopy) and can assist surgeons in implementing individualized clinical decisions in medical practice, thus addressing the goals of PPPM. Supplementary Information The online version contains supplementary material available at 10.1007/s13167-023-00333-5.
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Affiliation(s)
- Hangxing Wu
- Department of Joint and Orthopedics, Zhujiang Hospital, Southern Medical University, Guangzhou, Guangdong People’s Republic of China
| | - Zhijie Zuo
- Department of Joint and Orthopedics, Zhujiang Hospital, Southern Medical University, Guangzhou, Guangdong People’s Republic of China
| | - Yucong Li
- Department of Joint and Orthopedics, Zhujiang Hospital, Southern Medical University, Guangzhou, Guangdong People’s Republic of China
| | - Haoqiang Song
- Department of Joint and Orthopedics, Zhujiang Hospital, Southern Medical University, Guangzhou, Guangdong People’s Republic of China
| | - Wanyan Hu
- Department of Joint and Orthopedics, Zhujiang Hospital, Southern Medical University, Guangzhou, Guangdong People’s Republic of China
| | - Jingle Chen
- Department of Joint and Orthopedics, Zhujiang Hospital, Southern Medical University, Guangzhou, Guangdong People’s Republic of China
| | - Chao Xie
- Department of Joint and Orthopedics, Zhujiang Hospital, Southern Medical University, Guangzhou, Guangdong People’s Republic of China
| | - Lijun Lin
- Department of Joint and Orthopedics, Zhujiang Hospital, Southern Medical University, Guangzhou, Guangdong People’s Republic of China
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Effect of arthroscopic subacromial decompression during arthroscopic repair of small to medium-sized rotator cuff tears. JSES Int 2023; 7:296-300. [PMID: 36911774 PMCID: PMC9998726 DOI: 10.1016/j.jseint.2022.11.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
Background Although arthroscopic subacromial decompression (ASD) is a commonly used procedure during arthroscopic rotator cuff repair (ARCR), the effect of ASD on the clinical outcomes for ARCR is controversial. The purpose of this study was to compare the clinical outcomes of ARCR with or without ASD. Methods Patients (n = 315 with 320 shoulders) who underwent ARCR for small to medium-sized rotator cuff tears were followed for at least 24 months. ARCR was performed with ASD (180 shoulders, group A) or without ASD (140 shoulders, group N). There were no significant differences in patient demographics, including mean age and mean follow-up time. Rotator cuff repair was performed using the suture-bridge technique in all shoulders, and all patients were treated using the same rehabilitation protocol after surgery. University of California at Los Angeles score, Constant score, re-tear rates, revision surgery rates, and operating time were compared between groups. Re-tear was defined as Sugaya classification Types 4 and 5 using postoperative magnetic resonance imaging at more than 12 months. Results There was no statistically significant difference in clinical outcomes before and after ARCR between groups. However, the University of California at Los Angeles scores and Constant scores significantly improved in both groups after surgery (P < .001). Furthermore, there was no major difference in the re-tear rates between groups A (7/180 shoulders, 3.9%) and N (11/140 shoulders, 7.9%) (P = .146). Revision surgeries were performed on 3/180 shoulders (1.7%) in group A (due to postoperative deep infection in one shoulder and revision ARCR for re-tear in two shoulders). No revisions surgeries were needed in group N patients (P = .259). The mean surgical time for group A was 62.0 ± 27.0 minutes (29-138 min.) and 52.4 ± 26.1 minutes (17-124 min.) for group N (P = .007). Conclusion These results suggest that ASD has a limited effect on clinical outcomes of ARCR for small to medium-sized rotator cuff tears.
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Acute, Traumatic Rotator Cuff Tears Have Smaller Critical Shoulder Angles Than Degenerative Tears. Arthroscopy 2023; 39:225-231. [PMID: 36208709 DOI: 10.1016/j.arthro.2022.08.042] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/02/2022] [Revised: 08/22/2022] [Accepted: 08/29/2022] [Indexed: 12/15/2022]
Abstract
PURPOSE To determine whether the critical shoulder angle (CSA) in acute, traumatic rotator cuff tears (RCTs) is consistent with the previously described CSA in chronic degenerative RCTs. METHODS We performed a multicenter retrospective analysis of 134 patients presenting to 5 surgeons fellowship trained in shoulder and elbow or sports. Preoperative imaging was used to measure the CSA and tear characteristics. Patients were included if they had acute, traumatic full-thickness RCTs documented on advanced imaging and had preoperative Grashey radiographs. Patients were excluded if they had any history of shoulder pain, injury, surgery, or treatment prior to the current episode; were overhead athletes; or had fatty infiltration greater than Goutallier grade 1 on imaging. RESULTS The mean CSA was 33.5° (standard deviation, 4.1°), and 60% of tears had a CSA of less than 35°, much below the mean of 38.0° and the threshold of greater than 35° in degenerative RCTs. The mean age was 58 years, and 70% of patients were men. Overall, 60% of tears involved the subscapularis, 49% of tears occurred in patients aged 60 years or older, and 18% of patients sustained a dislocation. Older age (β = 0.316, P = .003) and male sex (β = 5.532, P = .025) were predictive of tear size, and older age (β = 0.229, P = .011) and biceps avulsion (β = 8.822, P = .012) were predictive of tear retraction. CONCLUSIONS Acute, traumatic RCTs have CSAs that are 5° smaller than those of degenerative tears, and the majority (60%) have CSAs that are below the threshold consistent with degenerative RCTs. The majority of traumatic tears (60%) involve the subscapularis. CLINICAL RELEVANCE The study findings suggest that a traumatic tear is not simply the acute failure of a degenerative tendon and that it represents a distinct pathologic entity. These findings support current practice of treating traumatic RCTs differently than degenerative RCTs.
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宁 梓, 施 政, 杨 光, 钟 瑞, 余 鸿, 王 扬, 王 国, 李 彦. [Evaluation methods of postoperative healing of supraspinatus tendon tear]. ZHONGGUO XIU FU CHONG JIAN WAI KE ZA ZHI = ZHONGGUO XIUFU CHONGJIAN WAIKE ZAZHI = CHINESE JOURNAL OF REPARATIVE AND RECONSTRUCTIVE SURGERY 2022; 36:1172-1177. [PMID: 36111482 PMCID: PMC9626287 DOI: 10.7507/1002-1892.202206054] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 06/15/2022] [Revised: 07/22/2022] [Accepted: 07/22/2022] [Indexed: 06/15/2023]
Abstract
OBJECTIVE To summarize the evaluation methods of postoperative healing of supraspinatus tendon tear in recent years, in order to provide reference for clinic. METHODS CNKI, Wanfang, PubMed, and Foreign Medical Literature Retrieval Service (FMRS) databases were used to search the literatures between 2005 and 2022. The literature related to the diagnosis and postoperative healing of supraspinatus tendon tear was included. Finally, 50 articles were reviewed. RESULTS Supraspinatus tendon tear is a common shoulder disease. Physical examination, clinical score, and imaging examination are used to predict and evaluate the postoperative healing. Among them, physical examination and clinical score are non-invasive and the most economical methods, but their accuracy and sensitivity are lower than imaging examination, so they can only be used as auxiliary methods. The acromio-humeral distance (AHD) and upward migration index (UMI) measured by X-ray films can directly reflect the change of supraspinatus tendon thickness, but they are impossible to distinguish whether there is tear or not. Ultrasound and MRI are the main methods for the clinical diagnosis of supraspinatus tendon tear, but the commonly used MRI sequence can not accurately judge the internal healing of the tendon. Shear wave elastrography (SWE) and ultrashort-echo-time (UTE) techniques are the latest research directions in recent years, but different studies have shown opposite conclusions on the application of SWE technique. This conclusion shows that the principle of SWE technique and its relationship with tendons need to be further studied. UTE technique has good clinical effect, and the T2* value obtained by UTE technique is more accurate than that of traditional Sugaya typing, but there are still few research samples. CONCLUSION AHD and UMI measured by X-ray film and T2* value measured by UTE technique can be used as effective methods for evaluating the healing of supraspinatus tendon tear after repairing, and can be used as a follow-up evaluation method combined with physical examination and clinical score for patients with supraspinatus tendon tear.
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Affiliation(s)
- 梓文 宁
- 昆明医科大学第一附属医院运动医学科(昆明 650032)Department of Sports Medicine, the First Affiliated Hospital of Kunming Medical University, Kunming Yunnan, 650032, P. R. China
| | - 政良 施
- 昆明医科大学第一附属医院运动医学科(昆明 650032)Department of Sports Medicine, the First Affiliated Hospital of Kunming Medical University, Kunming Yunnan, 650032, P. R. China
| | - 光 杨
- 昆明医科大学第一附属医院运动医学科(昆明 650032)Department of Sports Medicine, the First Affiliated Hospital of Kunming Medical University, Kunming Yunnan, 650032, P. R. China
| | - 瑞颖 钟
- 昆明医科大学第一附属医院运动医学科(昆明 650032)Department of Sports Medicine, the First Affiliated Hospital of Kunming Medical University, Kunming Yunnan, 650032, P. R. China
| | - 鸿 余
- 昆明医科大学第一附属医院运动医学科(昆明 650032)Department of Sports Medicine, the First Affiliated Hospital of Kunming Medical University, Kunming Yunnan, 650032, P. R. China
| | - 扬 王
- 昆明医科大学第一附属医院运动医学科(昆明 650032)Department of Sports Medicine, the First Affiliated Hospital of Kunming Medical University, Kunming Yunnan, 650032, P. R. China
| | - 国梁 王
- 昆明医科大学第一附属医院运动医学科(昆明 650032)Department of Sports Medicine, the First Affiliated Hospital of Kunming Medical University, Kunming Yunnan, 650032, P. R. China
| | - 彦林 李
- 昆明医科大学第一附属医院运动医学科(昆明 650032)Department of Sports Medicine, the First Affiliated Hospital of Kunming Medical University, Kunming Yunnan, 650032, P. R. China
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Zhang Y, Chen J, Ma M, Ju J, Jiang B, Zhang P. Relevance between Proximal Humeral Migration and Rotator Cuff Tears. Front Surg 2022; 9:903538. [PMID: 35599789 PMCID: PMC9118713 DOI: 10.3389/fsurg.2022.903538] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2022] [Accepted: 04/11/2022] [Indexed: 11/13/2022] Open
Abstract
BackgroundProximal humeral migration is common in patients with rotator cuff tears. In this study, we aimed to evaluate the relevance between proximal humeral migration and some rotator cuff tear-related factors.MethodsA total of 75 patients with unilateral rotator cuff tears were retrospectively included from August 2016 to January 2018 who underwent magnetic resonance imaging and X-ray examinations before enrollment. We introduced the upward migration index (UMI) to stratify the patients into three groups, Group A: 1 < UMI ≤ 1.3; Group B: 1.3 < UMI ≤ 1.4; and Group C: UMI > 1.4. Pearson correlation analysis and logistic regression analysis were used to evaluate the relationship between UMI and age, sex, body mass index, pain, fatty degeneration grade, tear size, and thickness of ruptured tendon. Then, the χ2 test and receiver operator characteristic curve were applied to measure the diagnostic value of UMI.ResultsThe average UMI was 1.34 ± 0.07, ranging from 1.16 to 1.48. For the Pearson correlation analysis, there was a negative correlation between UMI and tear size (R = −0.68, p < 0.01), and also, there was a negative correlation between UMI and the visual analogue scale score (R = 0.342, p < 0.01). What is more, there was a negative correlation between UMI and the fatty degeneration grade (R = −0.373, p < 0.01). Ordinal multinomial logistic regression analysis indicated that tear size (β = −1.825, p < 0.001) was the independent predictor of UMI, which was a risk factor for humeral upward migration. The cutoff points of UMI were 1.38 and 1.3 to determine tears and distinguish large tears from small ones.ConclusionsUMI is a good predictor for humeral upward migration, which is related to the tear size of posterosuperior cuff tears. When the UMI is <1.3, a large tear should be alerted. Combining physical examination and X-ray is helpful for evaluating rotator cuff tears.
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Kim MS, Rhee SM, Jeon HJ, Rhee YG. Anteroposterior and Lateral Coverage of the Acromion: Prediction of the Rotator Cuff Tear and Tear Size. Clin Orthop Surg 2022; 14:593-602. [DOI: 10.4055/cios22073] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/22/2022] [Revised: 05/18/2022] [Accepted: 06/16/2022] [Indexed: 11/07/2022] Open
Affiliation(s)
- Myung-Seo Kim
- Shoulder and Elbow Clinic, Department of Orthopaedic Surgery, Kyung Hee University School of Medicine, Seoul, Korea
- Shoulder and Elbow Clinic, Department of Orthopaedic Surgery, College of Medicine, Kyung Hee University Hospital at Gangdong, Seoul, Korea
| | - Sung-Min Rhee
- Shoulder and Elbow Clinic, Department of Orthopaedic Surgery, Kyung Hee University School of Medicine, Seoul, Korea
| | - Hyung Jun Jeon
- Shoulder and Elbow Clinic, Department of Orthopaedic Surgery, Myongji Hospital, Goyang, Korea
| | - Yong-Girl Rhee
- Shoulder and Elbow Clinic, Department of Orthopaedic Surgery, Myongji Hospital, Goyang, Korea
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Yilmazturk K, Birinci M, Kuyucu E, Bulbul AM. Is shoulder geometry important for rotator cuff tears? Int J Clin Pract 2021; 75:e15005. [PMID: 34739181 DOI: 10.1111/ijcp.15005] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/30/2020] [Revised: 09/23/2021] [Accepted: 10/27/2021] [Indexed: 11/26/2022] Open
Abstract
PURPOSE This study is aiming to evaluate some specific anatomic shoulder parameters such as the lateral acromial angle (LAA), acromial index (AI), coracohumeral distance (CHD) and critical shoulder angle (CSA) in rotator cuff tears. METHODS A total of 100 cases consisting of 50 patients with rotator cuff tears and 50 patients without rotator cuff tears, who underwent shoulder MRI (mangnetic resonance imaging) examination in Istanbul Medipol University Orthopedics and Traumatology Department, participated in this study. In this retrospective study, CCA, LAA, AI and CSA were evaluated in MRI in order to shed light on the theories of rotator cuff tears. RESULTS There was no significant difference (P ˃ .05) in acromial index and coracohumeral distance in the patient group. Lateral acromial angle and critical shoulder angle were significantly different in the patient group compared to the control group (P < .05). There was a weak negative correlation between CSA and CHD. CONCLUSION In our study, we found that patients with smaller LAA and higher CSA values in MRI images are prone to have rotator cuff tears. Further studies are needed in order to evaluate whether this association has predictive value.
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Affiliation(s)
- Kerem Yilmazturk
- Department of Anatomy, School of Medicine, Istanbul Medipol University, Istanbul, Turkey
- Clinical Anatomy PhD Program, Graduate School of Health Sciences, Istanbul Medipol University, Istanbul, Turkey
| | - Murat Birinci
- Department of Orthopaedics & Traumatology, School of Medicine, Istanbul Medipol University, Istanbul, Turkey
| | - Ersin Kuyucu
- Medical Park Bahcelievler Hospital, Department of Orthopaedics and Traumatology, Altinbas Universitesi, Istanbul, Turkey
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Yu M, Zhu X, Zhang Y, Guo L, Li D, Tian F, An N, Hao R, Wang C. Correlation of Multiple Acromion Morphological Parameters on Radiographs in a Geriatric Chinese Population and Its Clinical Significance. Geriatr Orthop Surg Rehabil 2021; 12:21514593211043990. [PMID: 34659869 PMCID: PMC8512212 DOI: 10.1177/21514593211043990] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
Introduction Previous clinical studies have reported associations between the acromion
index, lateral acromion angle, and critical shoulder angle and the
occurrence of rotator cuff tears. The objective of this study was to analyze
the correlations of these different anatomic parameters in geriatric Chinese
Population. Methods Healthy geriatric Chinese participants (n = 66) and geriatric Chinese
patients with rotator cuff tears (n = 70) identified between January 2019
and October 2020 were included in this study. Standardized true
anteroposterior radiographs were used to measure the acromion index, lateral
acromion angle, and critical shoulder angle in each study participant. Results The mean acromion index was significantly larger, the mean lateral acromion
angle was significantly smaller, and the mean critical shoulder angle was
significantly larger in geriatric patients with full-thickness rotator cuff
tears compared with geriatric healthy participants. Conclusion There were a negative linear relationship between the acromion index and
lateral acromion angle and a positive linear relationship between the
acromion index and critical shoulder angle in geriatric patients with
rotator cuff tear and geriatric healthy participants; we termed this
phenomenon “Hypothesis of Acromion Index.” The acromion index, lateral
acromion angle, and critical shoulder angle are independent predictors of
rotator cuff tears in a geriatric Chinese population.
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Affiliation(s)
- Mingyang Yu
- Departments of Orthopaedics, Affiliated Zhongshan Hospital of Dalian University, Dalian, China
| | - Xiaoming Zhu
- Department of Radiology, Affiliated Zhongshan Hospital of Dalian University, Dalian, China
| | - Yao Zhang
- Departments of Orthopaedics, Affiliated Zhongshan Hospital of Dalian University, Dalian, China
| | - Lin Guo
- Departments of Orthopaedics, Affiliated Zhongshan Hospital of Dalian University, Dalian, China
| | - Dongyi Li
- Departments of Orthopaedics, Affiliated Zhongshan Hospital of Dalian University, Dalian, China
| | - Fengde Tian
- Departments of Orthopaedics, Affiliated Zhongshan Hospital of Dalian University, Dalian, China
| | - Ning An
- Departments of Orthopaedics, Affiliated Zhongshan Hospital of Dalian University, Dalian, China
| | - Ruihu Hao
- Departments of Orthopaedics, Affiliated Zhongshan Hospital of Dalian University, Dalian, China
| | - Changcheng Wang
- Departments of Orthopaedics, Affiliated Zhongshan Hospital of Dalian University, Dalian, China
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Alraddadi A. Literature Review of Anatomical Variations: Clinical Significance, Identification Approach, and Teaching Strategies. Cureus 2021; 13:e14451. [PMID: 33996311 PMCID: PMC8117423 DOI: 10.7759/cureus.14451] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
This article is a comprehensive literature review on anatomical variations, shedding some light on their clinical significance, identification approaches, and teaching strategies. Anatomical variation is a normal presentation of body structure with morphological features different from those that have been classically described in several anatomy textbooks. Under normal circumstances, it has no impact on the function of the structure. However, it may influence different aspects of clinical practice. As a result, accurate knowledge of common anatomical variations in the treated area may improve clinical practice outcomes. On the other hand, anatomical variations are usually identified during routine dissection and clinical practice, including preoperative imaging and surgical procedures. Additionally, scientific research, such as observational studies using cadaveric dissection, medical images, and evidence-based anatomy, are effective approaches to identify anatomical variations. With regard to the teaching of anatomical variations, cadaveric dissection is the most commonly used and recommended learning tool for teaching anatomy and relevant variations in medical schools. However, the literature emphasizes introducing anatomical variations in the clinical phase of medical curricula and postgraduate training of surgical and radiological programs. The current study suggests creating a registry of anatomical variations encountered during practice that may enhance best care and prevent any confusion about those variations. In addition, there is a need to conduct more educational studies to research the best learning strategies for teaching and assessing anatomical variations in the medical curricula.
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Affiliation(s)
- Abdulrahman Alraddadi
- Basic Medical Sciences, Anatomy, King Saud bin Abdulaziz University for Health Sciences (KSAU-HS), Riyadh, SAU.,Basic Medical Sciences, Anatomy, King Abdullah International Medical Research Center (KAIMRC), Riyadh, SAU
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