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Shimizu H, Enda K, Koyano H, Shimizu T, Shimodan S, Sato K, Ogawa T, Tanaka S, Iwasaki N, Takahashi D. Bimodal machine learning model for unstable hips in infants: integration of radiographic images with automatically-generated clinical measurements. Sci Rep 2024; 14:17826. [PMID: 39090235 PMCID: PMC11294347 DOI: 10.1038/s41598-024-68484-7] [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: 12/25/2023] [Accepted: 07/24/2024] [Indexed: 08/04/2024] Open
Abstract
Bimodal convolutional neural networks (CNNs) are frequently combined with patient information or several medical images to enhance the diagnostic performance. However, the technologies that integrate automatically generated clinical measurements within the images are scarce. Hence, we developed a bimodal model that produced automatic algorithm for clinical measurement (aaCM) from radiographic images and integrated the model with CNNs. In this multicenter research project, the diagnostic performance of the model was investigated with 813 radiographic hip images of infants at risk of developmental dysplasia of the hips (232 and 581 images of unstable and stable hips, respectively), with the ground truth defined by provocative examinations. The results indicated that the accuracy of aaCM was equal or higher than that of specialists, and the bimodal model showed better diagnostic performance than LightGBM, XGBoost, SVM, and single CNN models. aaCM can provide expert's knowledge in a high level, and our proposed bimodal model has better performance than the state-of-art models.
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Affiliation(s)
- Hirokazu Shimizu
- Department of Orthopaedic Surgery, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Sapporo, Hokkaido, Japan
- Department of Cancer Pathology, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Sapporo, Hokkaido, Japan
| | - Ken Enda
- Department of Cancer Pathology, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Sapporo, Hokkaido, Japan
| | - Hidenori Koyano
- Graduate School of Biomedical Science and Engineering, Hokkaido University, Sapporo, Hokkaido, Japan
| | - Tomohiro Shimizu
- Department of Orthopaedic Surgery, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Sapporo, Hokkaido, Japan
| | - Shun Shimodan
- Department of Orthopaedic Surgery, Kushiro City General Hospital, Kushiro, Hokkaido, Japan
| | - Komei Sato
- Department of Orthopaedic Surgery, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Sapporo, Hokkaido, Japan
| | - Takuya Ogawa
- Department of Orthopaedic Surgery, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Sapporo, Hokkaido, Japan
| | - Shinya Tanaka
- Department of Cancer Pathology, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Sapporo, Hokkaido, Japan
- Institute for Chemical Reaction Design and Discovery (WPI-ICReDD), Hokkaido University, Sapporo, Hokkaido, Japan
| | - Norimasa Iwasaki
- Department of Orthopaedic Surgery, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Sapporo, Hokkaido, Japan
| | - Daisuke Takahashi
- Department of Orthopaedic Surgery, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Sapporo, Hokkaido, Japan.
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Desai VM, Hall CE, Cardin S, DeFrancesco CJ, Sarkar S, Sankar WN. Prevalence and Risk Factors for Stiffness Following Open Reduction for Developmental Dysplasia of the Hip. J Pediatr Orthop 2024:01241398-990000000-00619. [PMID: 39021118 DOI: 10.1097/bpo.0000000000002769] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 07/20/2024]
Abstract
OBJECTIVE Most prior investigations on adverse outcomes after open reduction (OR) for developmental dysplasia of the hip (DDH) have focused on avascular necrosis, redislocation, and residual dysplasia. To our knowledge, no previous study has investigated risk factors for stiffness, an underappreciated source of postoperative morbidity. The goals of this study were to define the entity more clearly and evaluate the prevalence and risk factors for arthrofibrosis after OR for DDH. METHODS A retrospective study was conducted, including all open hip reductions for DDH performed by a single surgeon from 2009 to 2022. Preoperative anteroposterior pelvic radiographs were used to calculate superior displacement, which was defined as the distance from the highest point of the proximal femoral metaphysis to the Hilgenreiner line, normalized by pelvic width. Cases treated with premature postoperative bracing cessation and/or referral to physical therapy with a resolution of stiffness within 6 months were categorized as mild arthrofibrosis. Cases that required >6 months of formal physical therapy for persistent range of motion concerns, manipulation under anesthesia, and/or inpatient rehabilitation admission were categorized as significant arthrofibrosis. RESULTS This study included 170 hips with a mean age of 21.6 months (range: 6.1 to 93.6 mo) and a mean follow-up of 46.8 months. 156 ORs (91.8%) were done through an anterior approach. Sixty-four patients (37.6%) had a concomitant isolated pelvic osteotomy, and 34 (20.0%) had both pelvic and femoral osteotomies. During the postoperative course, 109 patients (64.1%) had no arthrofibrosis, 38 (22.4%) had mild stiffness, and 23 (13.5%) had significant arthrofibrosis. On multivariable analysis, older age, superior displacement, and concomitant pelvic osteotomy were associated with any degree of arthrofibrosis (P< 0.05). Children older than 18 months or with dislocations higher than 16% of pelvic width had a 4.7 and 2.7 times higher risk, respectively, of experiencing some degree of stiffness postoperatively. CONCLUSIONS Older age, high dislocations, and concomitant pelvic osteotomy without femoral shortening are risk factors for stiffness after OR for DDH. Surgeons should counsel families about the risk of postoperative stiffness, which occurred to some degree in 36% of our patients. LEVEL OF EVIDENCE Level IV.
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Affiliation(s)
- Vineet M Desai
- Department of Orthopaedics, The Children's Hospital of Philadelphia, Philadelphia, PA
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Cummings JL, Oladeji AK, Rosenfeld S, Johnson M, Goldstein R, Georgopoulos G, Stephenson L, White NW, Hosseinzadeh P. Severity of hip dysplasia as the major factor affecting outcome of closed reduction in children with hip dysplasia. J Pediatr Orthop B 2024; 33:322-327. [PMID: 37669157 DOI: 10.1097/bpb.0000000000001122] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 09/07/2023]
Abstract
The objective of this study was to analyze a multicenter cohort of children with developmental dysplasia of the hip (DDH) who underwent treatment with closed reduction. We sought to report the effects that severity of hip dysplasia and age have on the development of femoral head avascular necrosis (AVN) and the need for additional procedures. All patients with DDH and minimum 2 years of follow-up who underwent closed reduction were identified. The following variables were recorded: sex, laterality of hip involvement, age, acetabular index (AI), and International Hip Dysplasia Institute (IHDI) grade. The effects of patient age and pre-procedure IHDI grade on the rate of AVN and need for additional procedures after the closed reduction were analyzed using an alpha of 0.05. Seventy-eight total hips were included in the final analysis. The average patient age was 12 months. AVN of the femoral head was reported in 24 hips (30.8%) and 32 hips (41.0%) required additional surgery. Higher pre-op IHDI grade was associated with higher risk of developing Bucholz-Ogden grades II-IV AVN of the femoral head ( P = 0.025) and requiring additional surgery ( P = 0.033) regardless of patient age. There were no statistically significant differences for the effect of age on the measured outcomes ( P > 0.05). These findings suggest that severity of dislocation (IHDI grade) is a significant risk factor for the development of AVN and need for additional procedure.
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Affiliation(s)
- Jason L Cummings
- Department of Orthopedic Surgery, Washington University in St. Louis, Saint Louis, Missouri
| | - Afolayan K Oladeji
- Department of Orthopedic Surgery, Washington University in St. Louis, Saint Louis, Missouri
| | | | - Megan Johnson
- Vanderbilt Children's Hospital, Nashville, Tennessee
| | | | | | | | - Nathan W White
- Department of Orthopaedic Surgery, Baylor College of Medicine, Houston, Texas, USA
| | - Pooya Hosseinzadeh
- Department of Orthopedic Surgery, Washington University in St. Louis, Saint Louis, Missouri
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Shimizu T, Takahashi D, Suzuki H, Shimizu H, Ogawa T, Yokota S, Ishizu H, Iwasaki N. Validation of parameters recommended for secondary screening for developmental dysplasia of the hip in Japan. J Orthop Sci 2024; 29:1015-1019. [PMID: 37451975 DOI: 10.1016/j.jos.2023.06.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/07/2022] [Revised: 06/19/2023] [Accepted: 06/28/2023] [Indexed: 07/18/2023]
Abstract
BACKGROUND Based on the Japanese Pediatric Orthopaedic Association's guidelines, secondary screening and imaging including ultrasonography and radiography, are recommended in infants with limited hip abduction (<70°) or in those with multiple risk factors including the following: asymmetrical skin creases, a family history of developmental dysplasia of the hip, female sex, and pelvic position at delivery. However, there is still little information regarding the usefulness of this guideline. The objective of this study was to investigate the association between the risk factors and developmental dysplasia of the hip diagnosed using ultrasound and radiography. METHODS A total of 356 infants (67 boys and 289 girls) underwent secondary ultrasonographic and radiological screening for developmental dysplasia of the hip in our hospital. Risk factors were documented from their medical records. The recommended item score, which we defined as an integrated value of the recommended item, was calculated for each patient. The limitation of hip abduction alone was a criterion for secondary screening; therefore, we defined the scores as follows: the limitation of hip abduction scored 2 points and other recommended scores were assigned 1 point. If the recommended item score was 2 points or more, we classified the infants as high-risk. RESULTS A total of 280 of 356 infants were included in the high-risk group, which showed a higher ratio of cases with abnormal imaging findings than the low-risk group. According to the multivariate logistic regression analyses among the recommended items, being female, skin asymmetry, and limb limitation were identified as independent risk factors for imaging abnormality and the need for Pavlik harness treatment. CONCLUSIONS The recommended items for secondary screening based on the Japanese Pediatric Orthopaedic Association's guidelines could be useful for screening infants in need of treatment.
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Affiliation(s)
- Tomohiro Shimizu
- Department of Orthopaedic Surgery, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Kita-15, Nish-7, Kita-ku, Sapporo 060-8638, Japan.
| | - Daisuke Takahashi
- Department of Orthopaedic Surgery, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Kita-15, Nish-7, Kita-ku, Sapporo 060-8638, Japan
| | - Hisataka Suzuki
- Department of Orthopaedic Surgery, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Kita-15, Nish-7, Kita-ku, Sapporo 060-8638, Japan
| | - Hirokazu Shimizu
- Department of Orthopaedic Surgery, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Kita-15, Nish-7, Kita-ku, Sapporo 060-8638, Japan
| | - Takuya Ogawa
- Department of Orthopaedic Surgery, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Kita-15, Nish-7, Kita-ku, Sapporo 060-8638, Japan
| | - Shunichi Yokota
- Department of Orthopaedic Surgery, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Kita-15, Nish-7, Kita-ku, Sapporo 060-8638, Japan
| | - Hotaka Ishizu
- Department of Orthopaedic Surgery, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Kita-15, Nish-7, Kita-ku, Sapporo 060-8638, Japan
| | - Norimasa Iwasaki
- Department of Orthopaedic Surgery, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Kita-15, Nish-7, Kita-ku, Sapporo 060-8638, Japan
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Huang X, Cheng X, Gao S, Liu Y, Su Y, Feng C. Prediction of the Labrum Shape in Patients With Developmental Dysplasia of the Hip Based on Pelvic Radiography. J Pediatr Orthop 2024; 44:e490-e495. [PMID: 38533533 DOI: 10.1097/bpo.0000000000002676] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 03/28/2024]
Abstract
BACKGROUND The shape of the labrum is strongly correlated with outcomes of developmental dysplasia of the hip (DDH). Magnetic resonance imaging (MRI) is the generally preferred imaging technique for observing the labrum. PURPOSE We aimed to find a correlation between the labrum shape and anterior-posterior (AP) pelvic measurements in children with DDH. METHODS Preoperative AP pelvic x-ray radiographs and MRI of patients with DDH from January 2019 to December 2021 were retrospectively collected and divided into three groups by labrum shape on MRI: everted, partly inverted, and inverted. The acetabular length ratio (RAL) in patients with unilateral DDH and the ratio of acetabular length to interpedicular distance (RALI) in all patients were calculated. T-tests were used to analyze differences between the groups. Receiver operating characteristic curve (ROC) analysis was performed between the everted group and the partly inverted and inverted groups. RESULTS We found significant differences in RAL between the everted and partly inverted groups, everted and inverted groups, and everted and combined groups. The ROC analysis showed that the best cutoff value for RAL was 0.945 between the everted and combined groups, with an area under the curve (AUC) of 88.4%. The sensitivity at the best RAL value was 0.783, and the specificity was 0.887. Moreover, we observed a significant difference in RALI between the everted, partly inverted, and inverted groups, as well as between the everted and combined groups. The optimal cutoff value for RALI between the everted and combined groups was 0.575, with an AUC of 74.5%. The sensitivity at the best RALI value was 0.765, and the specificity was 0.674. CONCLUSION The RAL or RALI values on pelvic AP radiographs can be used to predict the shape of the labrum. LEVEL OF EVIDENCE III.
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Affiliation(s)
- Xinyan Huang
- Department of Radiology, Children's Hospital of Chongqing Medical University; Chongqing Key Laboratory of Pediatrics, Ministry of Education Key Laboratory of Child Development and Disorders; National Clinical Research Center for Child Health and Disorders
- China International Science and Technology Cooperation Base of Child Development and Critical Disorders
| | - Xiang Cheng
- Department of Radiology, Children's Hospital of Chongqing Medical University; Chongqing Key Laboratory of Pediatrics, Ministry of Education Key Laboratory of Child Development and Disorders; National Clinical Research Center for Child Health and Disorders
- China International Science and Technology Cooperation Base of Child Development and Critical Disorders
| | - Sijie Gao
- Department of Radiology, Children's Hospital of Chongqing Medical University
| | - Yinxin Liu
- Department of Radiology, Children's Hospital of Chongqing Medical University
| | - Yuxi Su
- Department of Orthopedics, Children's Hospital of Chongqing Medical University; Chongqing Key Laboratory of Pediatrics, Ministry of Education Key Laboratory of Child Development and Disorders; National Clinical Research Center for Child Health and Disorders
- China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Jiangxi Hospital Affiliated Children's Hospital of Chongqing Medical University
| | - Chuan Feng
- Department of Radiology, Children's Hospital of Chongqing Medical University, Chongqing Key Laboratory of Pediatrics, Ministry of Education Key Laboratory of Child Development and Disorders, National Clinical Research Center for Child Health and Disorders
- China International Science and Technology Cooperation base of Child Development and Critical Disorders, Chongqing, China
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Mishima K, Kamiya Y, Sawamura K, Matsushita M, Imagama S. Gradual Reduction Using Overhead Traction for Late-Detected Developmental Dysplasia of the Hip: A Report of Three Cases Diagnosed Among Children Over Four Years Old. Cureus 2024; 16:e63833. [PMID: 39099904 PMCID: PMC11297563 DOI: 10.7759/cureus.63833] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/04/2024] [Indexed: 08/06/2024] Open
Abstract
Optimal reduction methods for late-detected developmental dysplasia of the hip (DDH) remain debatable. Gradual reduction (GR) using traction is a safer and more reliable option for late-detected DDH than closed reduction or open reduction with or without preliminary traction. GR using overhead traction, one of the current GR methods, has been indicated for children of walking age up to four years of age, whereas the upper age limit of this method has not yet been determined. We present three cases of late-detected DDH whose hips were treated between four and six years of age with this method. Stable reduction without subsequent redislocation was technically accomplished for all patients, albeit the duration of horizontal traction became longer than usual. Clinically significant avascular necrosis (AVN) has developed in children aged ≥5 years, indicating the need for some modifications to the conventional protocol to prevent AVN.
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Affiliation(s)
- Kenichi Mishima
- Department of Orthopaedic Surgery, Nagoya University Graduate School of Medicine, Nagoya, JPN
| | - Yasunari Kamiya
- Department of Orthopaedic Surgery, Nagoya University Graduate School of Medicine, Nagoya, JPN
| | - Kenta Sawamura
- Department of Orthopaedic Surgery, Nagoya University Graduate School of Medicine, Nagoya, JPN
| | - Masaki Matsushita
- Department of Orthopaedic Surgery, Nagoya University Graduate School of Medicine, Nagoya, JPN
| | - Shiro Imagama
- Department of Orthopaedic Surgery, Nagoya University Graduate School of Medicine, Nagoya, JPN
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Saeed A, Bradley CS, Verma Y, Kelley SP. Resolving residual acetabular dysplasia following successful brace treatment for developmental dysplasia of the hip in infants. Bone Joint J 2024; 106-B:744-750. [PMID: 38945534 DOI: 10.1302/0301-620x.106b7.bjj-2023-1169.r1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 07/02/2024]
Abstract
Aims Radiological residual acetabular dysplasia (RAD) has been reported in up to 30% of children who had successful brace treatment of infant developmental dysplasia of the hip (DDH). Predicting those who will resolve and those who may need corrective surgery is important to optimize follow-up protocols. In this study we have aimed to identify the prevalence and predictors of RAD at two years and five years post-bracing. Methods This was a single-centre, prospective longitudinal cohort study of infants with DDH managed using a published, standardized Pavlik harness protocol between January 2012 and December 2016. RAD was measured at two years' mean follow-up using acetabular index-lateral edge (AI-L) and acetabular index-sourcil (AI-S), and at five years using AI-L, AI-S, centre-edge angle (CEA), and acetabular depth ratio (ADR). Each hip was classified based on published normative values for normal, borderline (1 to 2 standard deviations (SDs)), or dysplastic (> 2 SDs) based on sex, age, and laterality. Results Of 202 infants who completed the protocol, 181 (90%) had two and five years' follow-up radiographs. At two years, in 304 initially pathological hips, the prevalence of RAD (dysplastic) was 10% and RAD (borderline) was 30%. At five years, RAD (dysplastic) decreased to 1% to 3% and RAD (borderline) decreased to < 1% to 2%. On logistic regression, no variables were predictive of RAD at two years. Only AI-L at two years was predictive of RAD at five years (p < 0.001). If both hips were normal at two years' follow-up (n = 96), all remained normal at five years. In those with bilateral borderline hips at two years (n = 21), only two were borderline at five years, none were dysplastic. In those with either borderline-dysplastic or bilateral dysplasia at two years (n = 26), three (12%) were dysplastic at five years. Conclusion The majority of patients with RAD at two years post-brace treatment, spontaneously resolved by five years. Therefore, children with normal radiographs at two years post-brace treatment can be discharged. Targeted follow-up for those with abnormal AI-L at two years will identify the few who may benefit from surgical correction at five years' follow-up.
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Affiliation(s)
- Ayesha Saeed
- Division of Orthopaedic Surgery, The Hospital for Sick Children, Toronto, Canada
| | - Catharine S Bradley
- Division of Orthopaedic Surgery, The Hospital for Sick Children, Toronto, Canada
| | - Yashvi Verma
- Division of Orthopaedic Surgery, The Hospital for Sick Children, Toronto, Canada
| | - Simon P Kelley
- Division of Orthopaedic Surgery, The Hospital for Sick Children, Toronto, Canada
- Department of Surgery, University of Toronto, Toronto, Canada
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Zhang Y, Weng L, Zhang G, Zhou H, Liu X, Cao Y. Arthroscopic debridement and reduction is an effective procedure for failed closed reduction in young children with developmental dislocation of the hip. INTERNATIONAL ORTHOPAEDICS 2024; 48:1401-1409. [PMID: 38478021 DOI: 10.1007/s00264-024-06140-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/12/2023] [Accepted: 03/02/2024] [Indexed: 05/08/2024]
Abstract
PURPOSE To assess the efficacy of arthroscopic debridement and reduction through two medial portals for the treatment of developmental dislocation of the hip (DDH) with failure of initial closed reduction and to explore key pathological structures obstructing reduction. METHODS Forty-eight children with 58 irreducible dislocated hips treated by arthroscopic reduction between January 2017 and December 2020 were retrospectively evaluated. Arthroscopic reduction was performed via two medial portals located in the superior and inferior adductor longus. All intra-articular obstacles were eliminated via arthroscopy, followed by manual reduction and spica cast immobilization. The surgical duration, extent of improvement in the safe zone, and extent of secondary surgical treatment were noted. All the children were followed up for > 24 months. Hip function and radiographic outcomes were evaluated. RESULTS All 58 hips showed safe zone improvement and concentric reduction after arthroscopic debridement. Hypertrophic ligamentum teres and thickened pulvinars were detected and resected in all hips. Constrictive capsules preventing reduction were observed in 15 hips, which needed to be further released. No inverted labrum was observed. Secondary surgery was performed in four hips with redislocation and seven hips with subluxation during follow-up. The remaining 47 hips (81.03%) maintained their reduction at the last follow-up. Excellent and good clinical outcomes were achieved in 95.74% of patients according to McKay's criteria. Two hips, three hips, and one hip were diagnosed with grade I, II, and III osteonecrosis of the femoral head, respectively. CONCLUSION This study demonstrated that arthroscopic debridement and reduction is a safe and feasible choice for treating irreducible DDH.
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Affiliation(s)
- Yuan Zhang
- Department of Orthopaedics, National Clinical Research Center for Child Health and Disorders; Ministry of Education Key Laboratory of Child Development and Disorders; Chongqing Key Laboratory of Pediatrics; Children's Hospital of Chongqing Medical University, 136 Zhongshan Er Road, Yuzhong District, Chongqing, 400014, People's Republic of China
| | - Liuqi Weng
- Department of Orthopaedics, National Clinical Research Center for Child Health and Disorders; Ministry of Education Key Laboratory of Child Development and Disorders; Chongqing Key Laboratory of Pediatrics; Children's Hospital of Chongqing Medical University, 136 Zhongshan Er Road, Yuzhong District, Chongqing, 400014, People's Republic of China
| | - Ge Zhang
- Department of Orthopaedics, National Clinical Research Center for Child Health and Disorders; Ministry of Education Key Laboratory of Child Development and Disorders; Chongqing Key Laboratory of Pediatrics; Children's Hospital of Chongqing Medical University, 136 Zhongshan Er Road, Yuzhong District, Chongqing, 400014, People's Republic of China
| | - Hai Zhou
- Department of Orthopaedics, National Clinical Research Center for Child Health and Disorders; Ministry of Education Key Laboratory of Child Development and Disorders; Chongqing Key Laboratory of Pediatrics; Children's Hospital of Chongqing Medical University, 136 Zhongshan Er Road, Yuzhong District, Chongqing, 400014, People's Republic of China
| | - Xing Liu
- Department of Orthopaedics, National Clinical Research Center for Child Health and Disorders; Ministry of Education Key Laboratory of Child Development and Disorders; Chongqing Key Laboratory of Pediatrics; Children's Hospital of Chongqing Medical University, 136 Zhongshan Er Road, Yuzhong District, Chongqing, 400014, People's Republic of China
| | - Yujiang Cao
- Department of Orthopaedics, National Clinical Research Center for Child Health and Disorders; Ministry of Education Key Laboratory of Child Development and Disorders; Chongqing Key Laboratory of Pediatrics; Children's Hospital of Chongqing Medical University, 136 Zhongshan Er Road, Yuzhong District, Chongqing, 400014, People's Republic of China.
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Uren NC, Judd J, Lindisfarne EA, Elliott KG, Aarvold A. Preoperative Gallows traction as an adjunct to hip open reduction surgery: Is it safe and is it effective? J Child Orthop 2024; 18:171-178. [PMID: 38567049 PMCID: PMC10984156 DOI: 10.1177/18632521241229620] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/24/2023] [Accepted: 01/12/2024] [Indexed: 04/04/2024] Open
Abstract
Background Traction is used at our hospital before open reduction in infants with developmental dysplasia of the hip. Theoretically, it reduces soft-tissue tension, allowing an easier surgical reduction and therefore lower surgical complications. Owing to extended hospital stays, potential complications, and lack of evidence, the use of traction has decreased. This study aims to quantify whether traction is safe and whether it has any demonstrable effect. Methods The perioperative course of 80 patients undergoing preoperative traction and hip open reduction were reviewed. The height of hip dislocation was classified using the International Hip Dysplasia Institute classification system on both radiographs taken before and after traction. Any complications related to traction were recorded, along with the requirement for femoral shortening osteotomies, incidence of re-dislocation, and longer-term rate of avascular necrosis. Results Traction lowered the resting position of the majority of hips, with the median International Hip Dysplasia Institute grade before traction improving from 4 to 3, a statistically significant improvement (p < 0.00001). There were no neurovascular complications. Two babies were complicated with broken skin sores; however, surgery still progressed uneventfully. Zero hips in the cohort required femoral shortening osteotomies to achieve a tension-free reduction, and the re-dislocation rate was 0%. However, 96% of hips were Severin 1 or 2 at 6-year follow-up. Conclusion Notably, 1 week of preoperative traction significantly improves the resting position of the hip in high dislocations. It is safe when used in infants weighing <12 kg, and subsequent surgical outcomes are excellent, thus supporting its use ahead of developmental dysplasia of the hip open reduction surgery. Level of evidence Level IV.
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Affiliation(s)
- Nicholas C Uren
- Department of Paediatric Orthopaedic Surgery, Southampton Children’s Hospital, Southampton, UK
- University of Southampton, Southampton, UK
| | - Julia Judd
- Department of Paediatric Orthopaedic Surgery, Southampton Children’s Hospital, Southampton, UK
| | - Edward A Lindisfarne
- Department of Paediatric Orthopaedic Surgery, Southampton Children’s Hospital, Southampton, UK
| | - Kirsten G Elliott
- Department of Paediatric Orthopaedic Surgery, Southampton Children’s Hospital, Southampton, UK
| | - Alexander Aarvold
- Department of Paediatric Orthopaedic Surgery, Southampton Children’s Hospital, Southampton, UK
- University of Southampton, Southampton, UK
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Tomaru Y, Kamegaya M, Saisu T, Murakami R, Sakuma A, Oikawa Y, Kakizaki J, Segawa Y, Tsukagoshi Y, Kamada H, Yamazaki M. Reapplication of the Pavlik Harness for Treatment of Developmental Dysplasia of the Hip After Initial Pavlik Harness Failure. J Pediatr Orthop 2024; 44:69-75. [PMID: 37981894 DOI: 10.1097/bpo.0000000000002572] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/21/2023]
Abstract
OBJECTIVE The Pavlik harness (PH) has been widely used as the standard treatment for infants with developmental dysplasia of the hip (DDH). When the initial application of the PH fails, alternative treatments, such as closed reduction, open reduction, and reapplication of the PH will be considered. Compared with other treatments, reapplication of the PH offers certain advantages, including simplicity and reduced physical, and psychological stress, on both infants and caregivers. This study aims to investigate the effectiveness of reapplying the PH in patients with DDH. METHODS This study included patients with DDH (complete dislocation) who were treated by reapplication of PH between 1988 and 2012. Patients who were able to follow-up for more than 5 years were included. We examined the reduction rate and several factors to identify indicators associated with successful reduction during reapplication, including age, sex, side of hip dislocation, and the presence of the Ortolani sign. At the final follow-up, hip development was assessed using the Severin classification, whereas avascular necrosis (AVN) was evaluated using the Kalamchi classification and the Salter criteria. RESULTS A total of 56 patients (48 females and 8 males) and 57 hips were included in this study. The mean age at first and second application of PH was 4.2 months old (range: 0.12 to 6.4), and 5.8 months old (3.0 to 11.4), respectively. The reduction rate was 49% (28 out of 57 hips). Among the successfully reduced hips, the AVN rate was 3.6% (1 out of 28 hips). The Severin classification revealed 27 hips in class I and 1 hip in class III. Statistical analysis indicated a significantly higher proportion of left hip involvement in the reduction group (85% vs 41%, χ 2 test, P < 0.001). Although not statistically significant, the rate of positive Ortolani sign tended to be higher in the reduction group (61% vs 38%, χ 2 test, P = 0.06). CONCLUSION The reapplication method demonstrated a 49% reduction rate and a low AVN rate of 3.6% in our study. It is worth considering for patients who fail the initial PH treatment, particularly in cases of left-side dislocation and a positive Ortolani sign during the initial application.
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Affiliation(s)
- Yohei Tomaru
- Chiba Child & Adult Orthopaedic Clinic, Chiba
- Department of Orthopaedic Surgery, University of Tsukuba, Tsukuba
| | | | | | - Reiko Murakami
- Division of Orthopedic Surgery, Niigata University Graduate School of Medical and Dental Sciences, Niigata
| | - Akitoshi Sakuma
- Department of Orthopaedic Surgery, Chiba Children's Hospital, Chiba
| | - Yasuhiro Oikawa
- Department of Orthopaedic Surgery, Chiba Children's Hospital, Chiba
| | - Jun Kakizaki
- Department of Orthopaedic Surgery, Chiba Children's Hospital, Chiba
| | - Yuko Segawa
- Department of Orthopaedic Surgery, Tokyo Medical and Dental University, Tokyo, Japan
| | - Yuta Tsukagoshi
- Department of Orthopaedic Surgery, University of Tsukuba, Tsukuba
| | - Hiroshi Kamada
- Department of Orthopaedic Surgery, University of Tsukuba, Tsukuba
| | - Masashi Yamazaki
- Department of Orthopaedic Surgery, University of Tsukuba, Tsukuba
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11
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Schmaranzer F, Justo P, Kallini JR, Ferrer MG, Miller P, Bixby SD, Novais EN. Hip Morphology on Post-Reduction MRI Predicts Residual Dysplasia 10 Years After Open or Closed Reduction. J Bone Joint Surg Am 2024; 106:110-119. [PMID: 37992184 DOI: 10.2106/jbjs.23.00333] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/24/2023]
Abstract
BACKGROUND There is limited evidence supporting the value of morphological parameters on post-reduction magnetic resonance imaging (MRI) to predict long-term residual acetabular dysplasia (RAD) after closed or open reduction for the treatment of developmental dysplasia of the hip (DDH). METHODS We performed a retrospective study of 42 patients (47 hips) undergoing open or closed reduction with a minimum 10 years of follow-up; 39 (83%) of the hips were in female patients, and the median age at reduction was 6.3 months (interquartile range [IQR], 3.3 to 8.9 months). RAD was defined as additional surgery with an acetabular index >2 standard deviations above the age- and sex-specific population-based mean value or Severin classification grade of >2 at last follow-up. Acetabular version and depth-width ratio, coronal and axial femoroacetabular distance, cartilaginous and osseous acetabular indices, transverse ligament thickness, and the thickness of the medial and lateral (limbus) acetabular cartilage were measured on post-reduction MRI. RESULTS At the time of final follow-up, 24 (51%) of the hips had no RAD; 23 (49%) reached a failure end point at a median of 11.4 years (IQR, 7.6 to 15.4 years). Most post-reduction MRI measurements, with the exception of the cartilaginous acetabular index, revealed a significant distinction between the group with RAD and the group with no RAD when mean values were compared. The coronal femoroacetabular distance (area under the receiver operating characteristic curve [AUC], 0.95; 95% confidence interval [CI], 0.90 to 1.00), with a 5-mm cutoff, and limbus thickness (AUC, 0.91; 95% CI, 0.83 to 0.99), with a 4-mm cutoff, had the highest discriminatory ability. A 5-mm cutoff for the coronal femoroacetabular distance produced 96% sensitivity (95% CI, 78% to 100%), 83% specificity (95% CI, 63% to 95%), 85% positive predictive value (95% CI, 65% to 96%), and 95% negative predictive value (95% CI, 76% to 100%). A 4-mm cutoff for limbus thickness had 96% sensitivity (95% CI, 78% to 100%), 63% specificity (95% CI, 41% to 81%), 71% positive predictive value (95% CI, 52% to 86%), and 94% negative predictive value (95% CI, 70% to 100%). CONCLUSIONS Coronal femoroacetabular distance, a quantitative metric assessing a reduction's concentricity, and limbus thickness, a quantitative metric assessing the acetabulum's cartilaginous component, help to predict hips that will have RAD in the long term after closed or open reduction. LEVEL OF EVIDENCE Diagnostic Level IV . See Instructions for Authors for a complete description of levels of evidence.
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Affiliation(s)
- Florian Schmaranzer
- Department of Diagnostic, Interventional, and Pediatric Radiology, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
| | - Pedro Justo
- Child and Young Adult Hip Preservation Program, Department of Orthopaedic Surgery, Boston Children's Hospital, Boston, Massachusetts
| | - Jennifer R Kallini
- Child and Young Adult Hip Preservation Program, Department of Orthopaedic Surgery, Boston Children's Hospital, Boston, Massachusetts
| | - Mariana G Ferrer
- Child and Young Adult Hip Preservation Program, Department of Orthopaedic Surgery, Boston Children's Hospital, Boston, Massachusetts
| | - Patricia Miller
- Child and Young Adult Hip Preservation Program, Department of Orthopaedic Surgery, Boston Children's Hospital, Boston, Massachusetts
| | - Sarah D Bixby
- Department of Radiology, Boston Children's Hospital, Boston, Massachusetts
| | - Eduardo N Novais
- Child and Young Adult Hip Preservation Program, Department of Orthopaedic Surgery, Boston Children's Hospital, Boston, Massachusetts
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12
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Tan Y, Zhao W, Wei M, He Y, Deng H, Su D, Zhu W, Wu Y, Shen H, Li Y. Hip arthrogram parameters predict radiographic outcomes of patients with developmental dysplasia of the hip treated by closed reduction. Front Pediatr 2024; 11:1292928. [PMID: 38283401 PMCID: PMC10811148 DOI: 10.3389/fped.2023.1292928] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/12/2023] [Accepted: 12/28/2023] [Indexed: 01/30/2024] Open
Abstract
Objective This study aimed to investigate the relationship between intraoperative hip arthrogram parameters and residual acetabular dysplasia (RAD) and avascular necrosis of the femoral head (AVN) in children with developmental dysplasia of the hip (DDH) treated by closed reduction. Methods We retrospectively analyzed the data of 102 patients (110 hips; mean age, 14.6 months ± 4.7 months) with DDH treated by closed reduction. A hip arthrogram was routinely performed during the operation. The femoral head coverage rate (FHC), medial pool distance of the hip (MPD), labral inversion, and reduction quality classification were evaluated under the hip arthrogram. The presence of RAD and AVN was assessed on radiographs at the last follow-up. The relationship between each arthrogram parameter and RAD as well as AVN was investigated using a t-test, chi-square test, and logistic regression. Results The overall FHC and medial pool distance of the hip (MDP) averaged 42.2% ± 12% and 8.1% ± 11.7%, respectively. There were 80 hips (72.7%) with labral inversion and 30 hips (27.2%) without. The reduction quality was type A in 57 hips (51.8%), type B in 28 hips (25.4%), and type C in 25 hips (22.7%). A total of 32 hips (29%) were in the RAD group, and 78 hips (71%) were in the recovered group according to whether pelvic osteotomy was performed or not and according to the last Severin grade. The FHC was significantly higher in the recovered group than that in the RAD group (P = 0.014). No significant difference was observed in sex, age at reduction, side, preoperative acetabular index, International Hip Dysplasia Institute classification, follow-up time, quality of reduction, MDP, and proportion of labral inversion between the recovered and RAD groups. Logistic regression analysis showed that only the FHC was a risk factor for RAD. The incidence of AVN above type II was 11.8% in this group of patients, and the incidence of AVN was significantly higher in patients with labral inversion (23.2%) than that in those without (7.5%; P = 0.041). Logistic regression analysis showed that labral inversion was a risk factor for AVN. Conclusion The FHC measured under arthrogram can predict the occurrence of RAD after closed reduction of DDH, whereas MDP, reduction quality classification, and labral inversion are of little significance. Labral inversion is a risk factor for AVN.
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Affiliation(s)
- YunFei Tan
- Department of Pediatric Orthopaedics, Liuzhou Hospital of Guangzhou Women and Children's Medical Center, Liuzhou, China
| | - Wei Zhao
- Department of Pediatric Orthopaedics, Liuzhou Hospital of Guangzhou Women and Children's Medical Center, Liuzhou, China
| | - MinRong Wei
- Department of Pediatric Orthopaedics, Liuzhou Hospital of Guangzhou Women and Children's Medical Center, Liuzhou, China
| | - Yi He
- Department of Pediatric Orthopaedics, Liuzhou Hospital of Guangzhou Women and Children's Medical Center, Liuzhou, China
| | - HuaJun Deng
- Department of Pediatric Orthopaedics, Liuzhou Hospital of Guangzhou Women and Children's Medical Center, Liuzhou, China
| | - DaiWei Su
- Department of Pediatric Orthopaedics, Liuzhou Hospital of Guangzhou Women and Children's Medical Center, Liuzhou, China
| | - WuHui Zhu
- Department of Pediatric Orthopaedics, Liuzhou Hospital of Guangzhou Women and Children's Medical Center, Liuzhou, China
| | - YuQian Wu
- Department of Pediatric Orthopaedics, Liuzhou Hospital of Guangzhou Women and Children's Medical Center, Liuzhou, China
| | - Hao Shen
- Department of Pediatric Orthopaedics, Liuzhou Hospital of Guangzhou Women and Children's Medical Center, Liuzhou, China
| | - YiQiang Li
- Department of Pediatric Orthopaedics, Guangzhou Women and Children’s Medical Center, Guangzhou Medical University, Guangzhou, Guangdong, China
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13
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Morris WZ, Kak A, Mayfield LM, Kang MS, Jo CH, Kim HKW. Does brace treatment following closed reduction of developmental dysplasia of the hip improve acetabular coverage? Bone Joint J 2023; 105-B:1327-1332. [PMID: 38035597 DOI: 10.1302/0301-620x.105b12.bjj-2023-0255.r1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/02/2023]
Abstract
Aims Abduction bracing is commonly used to treat developmental dysplasia of the hip (DDH) following closed reduction and spica casting, with little evidence to support or refute this practice. The purpose of this study was to determine the efficacy of abduction bracing after closed reduction in improving acetabular index (AI) and reducing secondary surgery for residual hip dysplasia. Methods We performed a retrospective review of patients treated with closed reduction for DDH at a single tertiary referral centre. Demographic data were obtained including severity of dislocation based on the International Hip Dysplasia Institute (IHDI) classification, age at reduction, and casting duration. Patients were prescribed no abduction bracing, part-time, or full-time wear post-reduction and casting. AI measurements were obtained immediately upon cast removal and from two- and four-year follow-up radiographs. Results A total of 243 hips underwent closed reduction and 82% (199/243) were treated with abduction bracing. There was no difference between those treated with or without bracing with regard to sex, age at reduction, severity of dislocation, spica duration, or immediate post-casting AI (all p > 0.05). There was no difference in hips treated with or without abduction brace with regard to AI at two years post-reduction (32.4° (SD 5.3°) vs 30.9° (SD 4.6°), respectively; p = 0.099) or at four years post-reduction (26.4° (SD 5.2°) vs 25.4° (SD 5.1°), respectively; p = 0.231). Multivariate analysis revealed only IHDI grade predicted AI at two years post-reduction (p = 0.004). There was no difference in overall rate of secondary surgery for residual dysplasia between hips treated with or without bracing (32% vs 39%, respectively; p = 0.372). However, there was an increased risk of early secondary surgery (< two years post-reduction) in the non-braced group (11.4% vs 2.5%; p = 0.019). Conclusion Abduction bracing following closed reduction for DDH treatment is not associated with decreased residual dysplasia at two or four years post-reduction but may reduce rates of early secondary surgery. A prospective study is indicated to provide more definitive recommendations.
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Affiliation(s)
- William Z Morris
- Scottish Rite for Children, Dallas, Texas, USA
- The University of Texas Southwestern Medical Center, Dallas, Texas, USA
| | - Arnav Kak
- The University of Texas Southwestern Medical Center, Dallas, Texas, USA
| | | | - Michael S Kang
- Scottish Rite for Children, Dallas, Texas, USA
- Asan Medical Center Children's Hospital, Seoul, South Korea
| | - Chan-Hee Jo
- Scottish Rite for Children, Dallas, Texas, USA
- The University of Texas Southwestern Medical Center, Dallas, Texas, USA
| | - Harry K W Kim
- Scottish Rite for Children, Dallas, Texas, USA
- The University of Texas Southwestern Medical Center, Dallas, Texas, USA
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14
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Yasin MS, Al Karmi J, Suleiman DO, Raja YM, Alshrouf MA, Abu Halaweh A, Hamdan M, Samarah O. Acetabular index as an indicator of Pavlik harness success in grade I developmental dysplasia of the hip: A retrospective study. J Child Orthop 2023; 17:598-606. [PMID: 38050594 PMCID: PMC10693839 DOI: 10.1177/18632521231199519] [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] [Received: 01/19/2023] [Accepted: 08/16/2023] [Indexed: 12/06/2023] Open
Abstract
Purpose Some articles have focused on the effectiveness of the Pavlik harness treatment for unstable and dislocated hips, yet data on monitoring its effectiveness with the acetabular index remains elusive. Therefore, this study aimed to assess Pavlik harness effectiveness in infants ≤6 months diagnosed with grade I developmental dysplasia of the hip using acetabular index improvement and identify the possible predictors of successful Pavlik harness treatment. Methods A retrospective review of infants with grade I acetabular dysplasia treated with a Pavlik harness and monitored with anteroposterior pelvis X-rays at presentation and follow-up. Successful treatment was defined as achieving an acetabular index <30°. Results A total of 231 infants with acetabular dysplasia were treated with a Pavlik harness. A successful outcome was achieved in 135 infants (58.4%). Younger age, lower initial acetabular index, and patients with unilateral developmental dysplasia of the hip were significant predictors of a successful outcome. An age of 4.5 months or older was found to be the threshold for an unsuccessful result following Pavlik harness treatment, with a sensitivity of 65.2% and specificity of 57.3%. An initial acetabular index of 35.5° was found to be the threshold for an unsuccessful result, with a sensitivity of 83.7% and specificity of 61.5%. Conclusion Pavlik Harness's success in correcting the acetabular index in acetabular dysplasia patients was related to unilateral cases, a younger age at presentation, and a lower initial acetabular index. The thresholds for unsuccessful treatment were an age of 4.5 months or greater and an acetabular index of 35.5° or higher.
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Affiliation(s)
- Mohamad Samih Yasin
- Department of Special Surgery, Division of Orthopaedics, School of Medicine, The University of Jordan, Amman, Jordan
| | - Joud Al Karmi
- Faculty of Medicine, The University of Jordan, Amman, Jordan
| | | | | | - Mohammad A Alshrouf
- Medical Internship, Jordan University Hospital, The University of Jordan, Amman, Jordan
| | - Ahmad Abu Halaweh
- Department of Special Surgery, Division of Orthopaedics, School of Medicine, The University of Jordan, Amman, Jordan
| | - Mohammad Hamdan
- Department of Special Surgery, Division of Orthopaedics, School of Medicine, The University of Jordan, Amman, Jordan
| | - Omar Samarah
- Department of Special Surgery, Division of Orthopaedics, School of Medicine, The University of Jordan, Amman, Jordan
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15
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Kak A, Morris WZ, Mayfield LM, Jo CH, Kim HKW. Abduction Bracing Following Anterior Open Reduction for Developmental Dysplasia of the Hip Does Not Improve Residual Dysplasia or Reduce Secondary Surgery. J Pediatr Orthop 2023; 43:626-631. [PMID: 37702286 DOI: 10.1097/bpo.0000000000002509] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 09/14/2023]
Abstract
BACKGROUND Abduction bracing is commonly used following open reduction and spica casting of developmental dysplasia of the hip. However, there is little evidence to support or refute this practice that carries associated cost and burden for families. The purpose of this study was to determine the efficacy of abduction bracing after open reduction in improving the acetabular dysplasia and reducing the rate of secondary surgery for residual dysplasia. METHODS This is a retrospective study of patients treated with open reduction at a single tertiary referral center. Demographic data, severity of dislocation [International Hip Dysplasia Institute (IHDI) class], age at reduction, and casting duration were obtained. Patients were prescribed no bracing, part-time (≤18 h/d), or full-time (≥20 h/d) brace wear based on surgeon preference. Acetabular index (AI) measurements were obtained at cast removal and at 2- and 4-year follow-up. RESULTS A total of 146 hips underwent open reduction with 61% (89/146) of hips treated with abduction bracing. There was no difference between braced and nonbraced cohorts with regards to sex, age at time of reduction, dislocation severity, cast duration, immediate postcasting AI, or incidence of medial open reduction. There was no difference in hips treated with or without brace following open reduction with regards to AI at 2 years postreduction (31.8±6.7 vs. 30.4±6.1 degrees, P =0.27) or at 4 years postreduction (24.9±6.5 vs. 24.7±6.5 degrees, P =0.97). However, further analysis showed lower mean AI at 2-year follow-up for braced versus nonbraced patients following medial open reduction (30.0±5.7 vs. 34.5±7.0 degrees, P =0.02). This difference was no longer present at 4-year follow-up (26.6±6.8 vs. 24.2±6.6 degrees, P =0.44). However, 4/19 (21%) nonbraced hips underwent secondary surgery for residual dysplasia and were consequently excluded from the AI measurement at 4 years postreduction (compared with 4/39 [10%] braced hips within the same time period). There was no difference in the rate of secondary surgery between braced and nonbraced hips (30% vs. 33%, respectively, P =0.70). Multivariate analysis demonstrated that neither IHDI classification, bracing, nor age at reduction predicted residual dysplasia. CONCLUSIONS Abduction bracing following anterior open reduction for developmental dysplasia of the hip is not associated with decreased residual dysplasia at 2/4 years postreduction or with decreased secondary surgery. These results suggest that abduction bracing following anterior open reduction may not provide clinical benefit. However, abduction bracing may be beneficial following medial open reduction. A prospective study is necessary to provide more definitive recommendations. LEVEL OF EVIDENCE Level III-therapeutic study.
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Affiliation(s)
- Arnav Kak
- University of Texas Southwestern Medical Center
| | - William Z Morris
- University of Texas Southwestern Medical Center
- Scottish Rite for Children, Dallas, TX
| | | | - Chan-Hee Jo
- University of Texas Southwestern Medical Center
- Scottish Rite for Children, Dallas, TX
| | - Harry K W Kim
- University of Texas Southwestern Medical Center
- Scottish Rite for Children, Dallas, TX
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16
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Bradley CS, Verma Y, Maddock CL, Wedge JH, Gargan MF, Kelley SP. A comprehensive nonoperative treatment protocol for developmental dysplasia of the hip in infants. Bone Joint J 2023; 105-B:935-942. [PMID: 37524345 DOI: 10.1302/0301-620x.105b8.bjj-2023-0149.r1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 08/02/2023]
Abstract
Aims Brace treatment is the cornerstone of managing developmental dysplasia of the hip (DDH), yet there is a lack of evidence-based treatment protocols, which results in wide variations in practice. To resolve this, we have developed a comprehensive nonoperative treatment protocol conforming to published consensus principles, with well-defined a priori criteria for inclusion and successful treatment. Methods This was a single-centre, prospective, longitudinal cohort study of a consecutive series of infants with ultrasound-confirmed DDH who underwent a comprehensive nonoperative brace management protocol in a unified multidisciplinary clinic between January 2012 and December 2016 with five-year follow-up radiographs. The radiological outcomes were acetabular index-lateral edge (AI-L), acetabular index-sourcil (AI-S), centre-edge angle (CEA), acetabular depth ratio (ADR), International Hip Dysplasia Institute (IHDI) grade, and evidence of avascular necrosis (AVN). At five years, each hip was classified as normal (< 1 SD), borderline dysplastic (1 to 2 SDs), or dysplastic (> 2 SDs) based on validated radiological norm-referenced values. Results Of 993 infants assessed clinically and sonographically, 21% (212 infants, 354 abnormal hips) had DDH and were included. Of these, 95% (202 infants, 335 hips) successfully completed bracing, and 5% (ten infants, 19 hips) failed bracing due to irreducible hip(s). The success rate of bracing for unilateral dislocations was 88% (45/51 infants) and for bilateral dislocations 83% (20/24 infants). The femoral nerve palsy rate was 1% (2/212 infants). At five-year follow-up (mean 63 months (SD 5.9; 49 to 83)) the prevalence of residual dysplasia after successful brace treatment was 1.6% (5/312 hips). All hips were IHDI grade I and none had AVN. Four children (4/186; 2%) subsequently underwent surgery for residual dysplasia. Conclusion Our comprehensive protocol for nonoperative treatment of infant DDH has shown high rates of success and extremely low rates of residual dysplasia at a mean age of five years.
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Affiliation(s)
- Catharine S Bradley
- Division of Orthopaedic Surgery, The Hospital for Sick Children, Toronto, Canada
| | - Yashvi Verma
- Division of Orthopaedic Surgery, The Hospital for Sick Children, Toronto, Canada
| | - Connor L Maddock
- Division of Orthopaedic Surgery, The Hospital for Sick Children, Toronto, Canada
| | - John H Wedge
- Division of Orthopaedic Surgery, The Hospital for Sick Children, Toronto, Canada
- Department of Surgery, University of Toronto, Toronto, Canada
| | - Martin F Gargan
- Division of Orthopaedic Surgery, The Hospital for Sick Children, Toronto, Canada
- Department of Surgery, University of Toronto, Toronto, Canada
| | - Simon P Kelley
- Division of Orthopaedic Surgery, The Hospital for Sick Children, Toronto, Canada
- Department of Surgery, University of Toronto, Toronto, Canada
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17
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Mojica ES, Pardo García JM, Huebschmann NA, Castañeda P. The tension of the iliopsoas tendon more than doubles during extension of the dysplastic hip in open reduction. J Pediatr Orthop B 2023; 32:324-328. [PMID: 35834787 DOI: 10.1097/bpb.0000000000000999] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
The role of the iliopsoas as an obstructing and re-dislocating factor in developmentally dislocated hips is unclear. The purpose of this article is to determine the change in the iliopsoas' tension during flexion and extension when performing an open reduction. We evaluated 34 hips undergoing an anterior open reduction for a developmental dislocation. At the time of surgery, we identified the iliopsoas, and before sectioning it as part of the open reduction, we measured the tension while cycling the reduced hip through flexion and extension. We performed statistical analysis using Pearson and Spearman correlation tests. We created an initial tension artificially at 20 N with the hip held in 90º of flexion, which then doubled to a mean of 42 N when placed in extension. We found a significant increase in tension when the hip went below 20º of flexion. We also found the correlation between the angle of the hip and the force of tension to be statistically significant ( P = 0.003). This study provides quantitative support that the tension of the iliopsoas tendon increases significantly in extension when performing an open reduction of a developmentally dislocated hip.
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Affiliation(s)
- Edward S Mojica
- Department of Orthopedic Surgery, New York University Langone Health, New York, NY, USA
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18
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Den H, Ito J, Kokaze A. Diagnostic accuracy of a deep learning model using YOLOv5 for detecting developmental dysplasia of the hip on radiography images. Sci Rep 2023; 13:6693. [PMID: 37095189 PMCID: PMC10126130 DOI: 10.1038/s41598-023-33860-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2022] [Accepted: 04/20/2023] [Indexed: 04/26/2023] Open
Abstract
Developmental dysplasia of the hip (DDH) is a cluster of hip development disorders and one of the most common hip diseases in infants. Hip radiography is a convenient diagnostic tool for DDH, but its diagnostic accuracy is dependent on the interpreter's level of experience. The aim of this study was to develop a deep learning model for detecting DDH. Patients younger than 12 months who underwent hip radiography between June 2009 and November 2021 were selected. Using their radiography images, transfer learning was performed to develop a deep learning model using the "You Only Look Once" v5 (YOLOv5) and single shot multi-box detector (SSD). A total of 305 anteroposterior hip radiography images (205 normal and 100 DDH hip images) were collected. Of these, 30 normal and 17 DDH hip images were used as the test dataset. The sensitivity and the specificity of our best YOLOv5 model (YOLOv5l) were 0.94 (95% confidence interval [CI] 0.73-1.00) and 0.96 (95% CI 0.89-0.99), respectively. This model also outperformed the SSD model. This is the first study to establish a model for detecting DDH using YOLOv5. Our deep learning model provides good diagnostic performance for DDH. We believe our model is a useful diagnostic assistant tool.
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Affiliation(s)
- Hiroki Den
- Department of Orthopaedic Surgery, National Rehabilitation Center for Children with Disabilities, 1-1-10 Komone, Itabashi-ku, Tokyo, 173-0037, Japan.
- Department of Hygiene, Public Health, and Preventative Medicine, Showa University School of Medicine, 1-5-8 Hatanodai, Shinagawa-ku, Tokyo, 142-8555, Japan.
| | - Junichi Ito
- Department of Orthopaedic Surgery, National Rehabilitation Center for Children with Disabilities, 1-1-10 Komone, Itabashi-ku, Tokyo, 173-0037, Japan
| | - Akatsuki Kokaze
- Department of Hygiene, Public Health, and Preventative Medicine, Showa University School of Medicine, 1-5-8 Hatanodai, Shinagawa-ku, Tokyo, 142-8555, Japan
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19
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Chand S, Afaque SF, Verma V, Singh A. Transient inferior over-reduction after open reduction in walking-age DDH: A retrospective analysis of 42 Hips. J Clin Orthop Trauma 2023; 39:102144. [PMID: 36923448 PMCID: PMC10009528 DOI: 10.1016/j.jcot.2023.102144] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/14/2022] [Revised: 01/15/2023] [Accepted: 02/22/2023] [Indexed: 03/14/2023] Open
Abstract
Background Due to various policy and health infrastructure issues, it is not uncommon to present developmental dysplasia of hip(DDH) at walking-age in India. The purpose of this study was retrospective analysis of operated cases of walking-age DDH with "inferior over-reduction". Methods "Inferior over-reduction" was defined as break in the Shenton's arc inferiorly in an operated hip which otherwise appears reduced. After Ethical Committee approval, we searched children operated for walking-age DDH. Children suggestive of syndromic association were excluded. We collected demographic data, follow-up, procedures performed, inferior over-reduction and complications. The IHDI grade, Acetabular Index(AI), Smith's ratio for superior (h/b) & lateral displacement(c/b) of femur, and clinical outcome (Modified McKay criteria) were evaluated. The outcomes of cases with inferior over-reduction(Group A) were compared with those without(Group B). Results 42 patients with average follow-up of 23 months were enrolled. 21 hips belonged to Group A. By 6 months follow up, all these cases recovered. On comparison of Smith's ratio, group A had significantly higher c/b for the operated hip at 3-month follow-up(p < 0.05). Patients undergoing acetabuloplasty had significantly lower c/b versus all other groups(p < 0.05). Correlation between h/b or c/b with age did not show any significant finding. 15 cases in group A and 14 cases in group B had excellent outcome as per modified McKay's criteria. None of the patients had inferior over-reduction, inferior or obturator dislocation at final follow-up. Three patients with group B had re-dislocation with poor outcome. we recorded 3 hips with AVN (7%). Conclusions This study highlights that after OR of walking-age DDH, the inferior over-reduction may be noted in as much as 50% of the cases. However, this is transient, and all cases recover by the 6 months follow up. There is no significant difference between group A & B in functional outcome, AVN rate. Long-term studies are required to see outcome differences between two groups.
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Affiliation(s)
- Suresh Chand
- Department of Paediatric Orthopaedics, King George's Medical University, Lucknow, India
| | - Syed Faisal Afaque
- Department of Paediatric Orthopaedics, King George's Medical University, Lucknow, India
| | - Vikas Verma
- Department of Paediatric Orthopaedics, King George's Medical University, Lucknow, India
| | - Ajai Singh
- Department of Paediatric Orthopaedics, King George's Medical University, Lucknow, India
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Zhou P, Zhang J, Dan T, Xu T, Kang X, Hang Y, Zhou Y. Closed reduction and plaster immobilization: an alternative solution for patients with developmental dysplasia of the hip who failed Pavlik harness treatment. ANZ J Surg 2023; 93:663-668. [PMID: 36732905 DOI: 10.1111/ans.18285] [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: 06/06/2022] [Revised: 12/26/2022] [Accepted: 01/08/2023] [Indexed: 02/04/2023]
Abstract
BACKGROUND The current study aims to investigate the clinical efficacy of closed reduction and cast immobilization for patients with developmental dysplasia of the hip (DDH) who failed Pavlik harness treatment. METHODS Patients with DDH who underwent cast immobilization under general anaesthesia after the failure of the Pavlik harness or Tübingen brace treatment between January 2015 and December 2020 were retrospectively recruited. General information, including Graf classification of initial diagnosis, initial treatment, age of cast immobilization, IHDI classification, AI index, avascular necrosis (AVN), and residual dysplasia, was collected. The incidence of AVN and late acetabular dysplasia (LACD) was also estimated. Moreover, factors related to AVN and LACD were investigated by multiple logistic regression analysis. RESULTS Thirty-four patients (47 hips) were finally included in the current study. Of these patients, 31 hips (66.0%) were successfully treated with closed reduction and cast immobilization. Open reduction was successfully performed in 16 hips (34.0%). Till the latest follow-up, LACD and AVN were found in 13 (27.7%) and 10 (21.3%) hips, respectively. In the open reduction group, type III and IV of the IHDI classification and type IV of the Ultrasound Graf classification were significantly higher when compared with the closed reduction group. Multiple logistic regression showed that failure of closed reduction was related to the initial types of the Ultrasound Graf and IHDI classifications. CONCLUSIONS Although the success rate of closed reduction after early harness failure in DDH is only 66%, we still advocate closed reduction as a first-line treatment for children who have failed sling treatment. Even if closed reduction fails, open reduction can still achieve acceptable results.
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Affiliation(s)
- Ping Zhou
- Department of Orthopedics, Kunming Children's Hospital, Kunming, China
| | | | - Tangzi Dan
- Graduate School, Kunming Medical University, Kunming, China
| | - Taotao Xu
- Department of Orthopedics, Kunming Children's Hospital, Kunming, China
| | - Xiaopeng Kang
- Department of Orthopedics, Kunming Children's Hospital, Kunming, China
| | - Yong Hang
- Department of Orthopedics, Kunming Children's Hospital, Kunming, China
| | - You Zhou
- Department of Orthopedics, Kunming Children's Hospital, Kunming, China
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21
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Yilar S, Topal M. Tönnis and the Novel IHDI Radiographic Classification Systems for the Developmental Dysplasia of The Hip (DDH): Evaluation of 406 hips with DDH. Acta Orthop Belg 2023; 89:21-27. [PMID: 37294981 DOI: 10.52628/89.1.7647] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
In this study, we aimed to compare the efficiency of Tönnis and the novel International Hip Dysplasia Institute (IHDI) in decision making and in presuming the outcomes in children who had undergone closed reduction and casting. 406 hips of 298 patients who had undergone closed reduction and spica casting were included in this retrospective study. All hips were classified according to Tönnis and IHDI systems. Bucholz-Ogden classification was used for avascular necrosis. The outcomes of patients for each classification system were compared, in terms of the presence of avascular necrosis, redislocations and secondary surgeries at the end of the follow-up period. 318 hips were evaluated as Tönnis grade 2 dysplasia. 24 had avascular necrosis, 9 had redislocations. 79 hips were evaluated as Tönnis grade 3 dysplasia. 18 had AVN, 7 had redislocations. 9 hips were evaluated as Tönnis grade 4 dysplasia 3 had AVN, 4 had redislocations. 203 patients were evaluated as IHDI grade 2 dysplasia. 7 had AVN, 7 had redislocations.185 patients were assessed as IHDI grade 3 dysplasia. 33 had AVN, 11 had redislocations. 18 patients were evaluated as IHDI grade 4 dysplasia. 5 had AVN, 6 had redislocations. Both Tönnis classification and IHDI classification systems are reliable and efficient systems for evaluating the severity and predicting the success of closed reduction and casting for the treatment of DDH. IHDI classification has certain benefits, such as being a practical classification and a better distribution within the groups.
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22
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Sand A, Tiderius CJ, Düppe H, Wenger D. The International Hip Dysplasia Institute (IHDI) classification is more informative than the Tönnis classification. Acta Radiol 2023; 64:1103-1108. [PMID: 35758228 DOI: 10.1177/02841851221110447] [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] [Indexed: 11/16/2022]
Abstract
BACKGROUND A new, supposedly more reproducible radiographic classification, set to replace the Tönnis classification of hip dislocations, was proposed in 2015: the International Hip Dysplasia Institute (IHDI) classification. PURPOSE To compare the IHDI classification with the Tönnis classification when evaluating the severity of hip dislocations as well as their respective inter- and intra-observer reliability. MATERIAL AND METHODS Since January 2000, Swedish-born children with a hip dislocation were prospectively registered. From this registry, radiographs of 97 hips in 79 patients (91% girls; median age = 7 months), born in 2000-2009, were analyzed. Two observers, one consultant and one resident, classified each hip both by IHDI and Tönnis twice. RESULTS The IHDI classification had a more even distribution of grades with the majority in grade 2-3. The Tönnis classification graded the majority (77%) of the patients as grade 2 and equally among the other grades. There was moderate inter-observer agreement using both methods calculated with Kappa, 0.61 (95% confidence interval [CI] = 0.44-0.79) for Tönnis and 0.62 (95% CI = 0.49-0.74) for IHDI. The resident calculated Tönnis with weak intra-observer reliability of 0.57 (95% CI = 0.40-0.74) compared to high intra-observer reliability of 0.86 (95% CI = 0.74-0.98) for the consultant. Both observers graded IHDI with high intra-observer reliability. CONCLUSION IHDI is more discriminative than the Tönnis classification when evaluating the severity of a hip dislocation in infants.
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Affiliation(s)
- Adam Sand
- Department of Orthopaedics, Lund University, 59565Skåne University Hospital, Malmo, Sweden
| | - Carl Johan Tiderius
- Department of Orthopaedics, Lund University, 59565Skåne University Hospital, Malmo, Sweden
| | - Henrik Düppe
- Department of Orthopaedics, Lund University, 59565Skåne University Hospital, Malmo, Sweden
| | - Daniel Wenger
- Department of Orthopaedics, Lund University, 59565Skåne University Hospital, Malmo, Sweden
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Fu Z, Zhang Z, Deng S, Yang J, Li B, Zhang H, Liu J. MRI assessment of femoral head docking following closed reduction of developmental dysplasia of the hip. Bone Joint J 2023; 105-B:140-147. [PMID: 36722051 PMCID: PMC9869706 DOI: 10.1302/0301-620x.105b2.bjj-2022-0547.r2] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
AIMS Eccentric reductions may become concentric through femoral head 'docking' (FHD) following closed reduction (CR) for developmental dysplasia of the hip (DDH). However, changes regarding position and morphology through FHD are not well understood. We aimed to assess these changes using serial MRI. METHODS We reviewed 103 patients with DDH successfully treated by CR and spica casting in a single institution between January 2016 and December 2020. MRI was routinely performed immediately after CR and at the end of each cast. Using MRI, we described the labrum-acetabular cartilage complex (LACC) morphology, and measured the femoral head to triradiate cartilage distance (FTD) on the midcoronal section. A total of 13 hips with initial complete reduction (i.e. FTD < 1 mm) and ten hips with incomplete MRI follow-up were excluded. A total of 86 patients (92 hips) with a FTD > 1 mm were included in the analysis. RESULTS At the end of the first cast period, 73 hips (79.3%) had a FTD < 1 mm. Multiple regression analysis showed that FTD (p = 0.011) and immobilization duration (p = 0.028) were associated with complete reduction. At the end of the second cast period, all 92 hips achieved complete reduction. The LACC on initial MRI was inverted in 69 hips (75.0%), partly inverted in 16 hips (17.4%), and everted in seven hips (7.6%). The LACC became everted-congruent in 45 hips (48.9%) and 92 hips (100%) at the end of the first and second cast period, respectively. However, a residual inverted labrum was present in 50/85 hips (58.8%) with an initial inverted or partly inverted LACC. CONCLUSION An eccentric reduction can become concentric after complete reduction and LACC remodelling following CR for DDH. Varying immobilization durations were required for achieving complete reduction. A residual inverted labrum was present in more than half of all hips after LACC remodelling.Cite this article: Bone Joint J 2023;105-B(2):140-147.
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Affiliation(s)
- Zhe Fu
- Department of Pediatric Orthopedics, Tianjin Hospital, Tianjin, China
| | - Zhongli Zhang
- Department of Pediatric Orthopedics, Tianjin Hospital, Tianjin, China
| | - Shuzhen Deng
- Department of Pediatric Orthopedics, Tianjin Hospital, Tianjin, China
| | - Jianping Yang
- Department of Pediatric Orthopedics, Tianjin Hospital, Tianjin, China
| | - Bing Li
- Department of Joint, Tianjin Hospital, Tianjin, China
| | - Huadong Zhang
- Department of Pediatric Orthopedics, Tianjin Hospital, Tianjin, China
| | - Jun Liu
- Department of Joint, Tianjin Hospital, Tianjin, China,Correspondence should be sent to Jun Liu. E-mail:
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Yong M, Xu M, Lou Y, Lin G. Risk factors for postoperative avascular necrosis of the femoral head in children with developmental dysplasia of the hip. Front Pediatr 2023; 11:1089341. [PMID: 36950177 PMCID: PMC10025389 DOI: 10.3389/fped.2023.1089341] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/04/2022] [Accepted: 01/30/2023] [Indexed: 03/24/2023] Open
Abstract
Aim To investigate factors associated with postoperative avascular necrosis of the femoral head (ANFH) in developmental dysplasia of the hip (DDH) patients, and if or how the associations varied among different subpopulations of age, sex and surgical method. Methods Patients with DDH were enrolled between October 31, 2016 and July 15, 2020 in this retrospective cohort study. The average follow-up time was 21.42 ± 10.02 months. The outcome was postoperative ANFH. The main study variables were the DDH classification, Tonnis grade, International Hip Dysplasia Institute (IHDI) classification, and preoperative traction. Multivariate logistic regression was employed to assess the associations between main study variables and postoperative ANFH. Subgroup analysis was carried out based on age at reduction, sex and surgical method. Odds ratio (ORs) and 95% confidence intervals (CIs) were calculated. Results A total of 427 children with DDH were included, with 92 (21.55%) in the ANFH group, and 335 (78.45%) in the non-ANFH group. DDH classification was positively correlated with the risk of postoperative ANFH (OR = 4.14, 95% CI, 1.08-15.77, P = 0.038). Children with preoperative traction had a significantly decreased risk of postoperative ANFH in contrast to those without preoperative traction (OR = 0.37, 95% CI, 0.22-0.61, P < 0.001). Children aged 1-3 years who received preoperative traction has a significantly reduced risk of postoperative ANFH than those who did not receive preoperative traction (OR = 0.28, 95% CI, 0.15-0.51, P < 0.001). For children aged >3 years, positive association was found between DDH classification and the risk of postoperative ANFH (OR = 3.75, 95% CI, 1.51-9.31, P = 0.004). Girls with a more severe DDH type had a significantly higher risk of postoperative ANFH (OR = 3.80, 95% CI, 1.80-8.02, P < 0.001). Receiving preoperative traction was associated with a significantly decreased risk of postoperative ANFH in girls (OR = 0.37, 95% CI, 0.22-0.61, P < 0.001). For children undergoing open reduction, DDH classification was positively associated with the risk of postoperative ANFH (OR = 3.01, 95% CI, 1.65-5.50, P < 0.001), and those with preoperative traction had a lower risk of postoperative ANFH compared with those without preoperative traction (OR = 0.35, 95% CI, 0.20-0.61, P < 0.001). Conclusion DDH classification and preoperative traction were associated with the risk of postoperative ANFH, and these associations varied across DDH patients with different ages, sexes and surgical methods.
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25
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Sha J, Huang L, Chen Y, Fan Z, Lin J, Yang Q, Li Y, Yan Y. Clinical thought-based software for diagnosing developmental dysplasia of the hip on pediatric pelvic radiographs. Front Pediatr 2023; 11:1080194. [PMID: 37063681 PMCID: PMC10098126 DOI: 10.3389/fped.2023.1080194] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/26/2022] [Accepted: 03/06/2023] [Indexed: 04/18/2023] Open
Abstract
Background The common methods of radiographic diagnosis of developmental dysplasia of the hip (DDH) include measuring hip parameters and quantifying the degree of hip dislocation. However, clinical thought-based analysis of hip parameters may be a more effective way to achieve expert-like diagnoses of DDH. This study aims to develop a diagnostic strategy-based software for pediatric DDH and validate its clinical feasibility. Methods In total, 543 anteroposterior pelvic radiographs were retrospectively collected from January 2017 to December 2021. Two independent clinicians measured four diagnostic indices to compare the diagnoses made by the software and conventional manual method. The diagnostic accuracy was evaluated using the receiver operator characteristic (ROC) curves and confusion matrix, and the consistency of parametric measurements was assessed using Bland-Altman plots. Results In 543 cases (1,086 hips), the area under the curve, accuracy, sensitivity, and specificity of the software for diagnosing DDH were 0.988-0.994, 99.08%-99.72%, 98.07%-100.00%, and 99.59%, respectively. Compared with the expert panel, the Bland-Altman 95% limits of agreement for the acetabular index, as determined by the software, were -2.09°-2.91° (junior orthopedist) and -1.98°-2.72° (intermediate orthopedist). As for the lateral center-edge angle, the 95% limits were -3.68°-5.28° (junior orthopedist) and -2.94°-4.59° (intermediate orthopedist). Conclusions The software can provide expert-like analysis of pelvic radiographs and obtain the radiographic diagnosis of pediatric DDH with great consistency and efficiency. Its initial success lays the groundwork for developing a full-intelligent comprehensive diagnostic system of DDH.
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Affiliation(s)
- Jia Sha
- Department of Orthopedics, Xijing Hospital, Air Force Military Medical University, Xi’an, China
| | - Luyu Huang
- Department of Orthopedics, Xijing Hospital, Air Force Military Medical University, Xi’an, China
| | - Yaopeng Chen
- School of Telecommunications Engineering, Xidian University, Xi’an, China
- Guangzhou Institute, Xidian University, Xi’an, China
| | - Zongzhi Fan
- Department of Orthopedics, Xijing Hospital, Air Force Military Medical University, Xi’an, China
| | - Jincong Lin
- Department of Orthopedics, Xijing Hospital, Air Force Military Medical University, Xi’an, China
| | - Qinghai Yang
- School of Telecommunications Engineering, Xidian University, Xi’an, China
| | - Yi Li
- School of Telecommunications Engineering, Xidian University, Xi’an, China
- Correspondence: Yabo Yan Yi Li
| | - Yabo Yan
- Department of Orthopedics, Xijing Hospital, Air Force Military Medical University, Xi’an, China
- Correspondence: Yabo Yan Yi Li
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Alassaf N. Watchful waiting for the undisplaced hip dysplasia when undergoing contralateral hip reconstruction. EUROPEAN JOURNAL OF ORTHOPAEDIC SURGERY & TRAUMATOLOGY : ORTHOPEDIE TRAUMATOLOGIE 2022:10.1007/s00590-022-03433-6. [PMID: 36436088 DOI: 10.1007/s00590-022-03433-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/31/2022] [Accepted: 11/09/2022] [Indexed: 06/16/2023]
Abstract
PURPOSE Patients undergoing surgical reduction of the dislocated hip secondary to developmental dysplasia may have a contralateral undisplaced dysplastic hip. This study aimed to compare the observation of the contralateral undisplaced dysplastic hip with the treatment by acetabuloplasty in terms of persistent dysplasia to determine the need for bilateral surgery. METHODS Acetabular dysplasia was defined by an acetabular index (AI) of more than 30 degrees plus a center edge angle (CEA) of less than 20 degrees. A surgical database was queried retrospectively for a cohort between 2008 and 2016. Inclusion criteria were aged between 1 and 6 years, unilateral developmental dysplasia (international hip dysplasia institute grade 1) with contralateral dislocation, no previous treatment and a minimum follow-up of 1 year. RESULTS Fifty-seven patients were included, 40 in the observation group and 17 in the acetabuloplasty group. The mean age (interquartile range) was 20 (17-23) months, and the mean follow-up was 42 (22-62) months. The baseline values were similar for both groups. At the final follow-up, no hip had dysplasia, as specified a priori in either group, but the final AI and CEA were corrected more in the acetabuloplasty group (p < 0.001). Based on the adjusted analysis, both acetabuloplasty and follow-up without treatment were associated with improved acetabular coverage. CONCLUSION Watchful expectancy of undisplaced hip dysplasia presenting in patients undergoing contralateral hip reconstruction during years of acetabular growth is safe as the risk of persistent dysplasia and additional surgery is low. LEVEL OF EVIDENCE III.
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Affiliation(s)
- Nabil Alassaf
- Specialized Centre for Hip Dysplasia, Department of Orthopedic Surgery, Hail Health Cluster, Hail, Kingdom of Saudi Arabia.
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Anteroposterior pelvic radiograph is not sufficient to confirm hip reduction after conservative treatment of developmental dysplasia of the hip. J Pediatr Orthop B 2022; 31:532-538. [PMID: 35502738 DOI: 10.1097/bpb.0000000000000987] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
The purpose of this study was to investigate whether an anteroposterior pelvic radiograph alone is sufficient to confirm hip reduction after conservative treatment or whether MRI could be alternatively performed. A total of 133 children (145 hips) were enrolled. All children were examined by anteroposterior pelvic radiographs and MRI. Three experts interpreted anteroposterior pelvic radiographs and then verified these results on MRI. For patients with inconsistent results between anteroposterior pelvic radiographs and MRI, the continuity of Shenton's line and Calve's line was recorded, and the medial clear space of bilateral hips was measured for unilateral cases. There was complete agreement between the three experts in the interpretation of anteroposterior pelvic radiographs of 111 (76.55%) hips; there was disagreement in the remaining 34 hips, with two experts diagnosing satisfactory reduction in 13 hips and dislocation in 21 hips. Assuming that the judgment of two or more doctors on anteroposterior pelvic radiographs was taken as the final result, 17 hips (11.72%) were misjudged. There was no statistically significant difference between the actual in-position group and the actual dislocation group in terms of the continuity of Shenton's line ( P = 0.62) and Calve's line ( P = 0.10) and the medial clear space of bilateral hips ( P = 0.08). In children less than 1 year of age with developmental dysplasia of the hip treated conservatively, the use of anteroposterior pelvic radiographs alone to judge hip reduction might result in misdiagnosis and missed diagnosis. MRI could be alternatively used to detect hip reduction after conservative treatment, especially when the doctor was not familiar with ultrasound in the presence of plaster.
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Bian Z, Guo Y, Lyu X, Zhu Z, Yang Z, Wang Y. Risk Factors for Avascular Necrosis After Closed Reduction for Developmental Dysplasia of the Hip. J Pediatr Orthop 2022; 42:467-473. [PMID: 35948526 PMCID: PMC9470038 DOI: 10.1097/bpo.0000000000002228] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
BACKGROUND Avascular necrosis (AVN) is a major complication after closed reduction for developmental dysplasia of the hip. The factors that predispose to AVN remain controversial. The purpose of this study was to analyze the risk factors, especially patient factors, such as age at reduction, grade of dislocation, and ossific nucleus development, related to AVN. MATERIALS AND METHODS We retrospectively reviewed children with dysplasia of the hip treated by closed reduction between 1997 and 2006. AVN was evaluated using Salter criteria and Kalamchi and MacEwen classification. Related factors were analyzed. RESULTS One hundred and eight children (140 hips) with an average age of 16.6 months at closed reduction (range: 6-24 mo) were included in the study. For an average duration of 10.1 years (range 7-16 y) of follow-up, 44 hips (31.4%) developed AVN. Grade II or higher AVN occurred in 14 hips (10%). The incidence of AVN increased with the grade of dislocation ( P =0.022) and underdevelopment of the ossific nucleus ( P <0.001). Underdevelopment of the ossific nucleus was also found to be positively correlated with the dislocation grade ( P =0.047). The age at the time of reduction, sex, and side were not significant factors. Children who underwent secondary operation were all older than 1 year at reduction. CONCLUSIONS High-grade dislocation correlates with the underdevelopment of the ossific nucleus. Patients with these 2 characteristics are predisposed to AVN. As underdevelopment of the ossific nucleus occurred regardless of age, it is not advisable to delay reduction because it does not alter the AVN rate, and instead, it increases the secondary operation rate. LEVEL OF EVIDENCE Level IV case series.
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Behman AL, Bradley CS, Maddock CL, Sharma S, Kelley SP. Testing of an Ultrasound-Limited Imaging Protocol for Pavlik harness Supervision (TULIPPS) in developmental dysplasia of the hip: a randomized controlled trial. Bone Joint J 2022; 104-B:1081-1088. [PMID: 36047018 DOI: 10.1302/0301-620x.104b9.bjj-2022-0350.r2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
AIMS There is no consensus regarding optimum timing and frequency of ultrasound (US) for monitoring response to Pavlik harness (PH) treatment in developmental dysplasia of the hip (DDH). The purpose of our study was to determine if a limited-frequency hip US assessment had an adverse effect on treatment outcomes compared to traditional comprehensive US monitoring. METHODS This study was a single-centre noninferiority randomized controlled trial. Infants aged under six months whose hips were reduced and centred in the harness at initiation of treatment (stable dysplastic or subluxable), or initially decentred (subluxated or dislocated) but reduced and centred within four weeks of PH treatment, were randomized to our current standard US monitoring protocol (every clinic visit) or to a limited-frequency US protocol (US only at end of treatment). Groups were compared based on α angle and femoral head coverage at the end of PH treatment, acetabular indices, and International Hip Dysplasia Institute (IHDI) grade on one-year follow-up radiographs. RESULTS Overall, 100 patients were included; 42 patients completed the standard protocol (SP) and 40 completed the limited protocol (LP). There was no significant difference in mean right α angle at the end of treatment (SP 70.0° (SD 3.2°) ; LP 68.7° (SD 2.9°); p = 0.033), nor on the left (SP 69.0° (SD 3.5°); LP 68.1° (SD 3.3°); p = 0.128). There was no significant difference in mean right acetabular index at follow-up (SP 23.1° (SD 4.3°); LP 22.0° (SD 4.1°); p = 0.129), nor on the left (SP 23.3° (SD 4.2°); LP 22.8° (SD 3.9°); p = 0.284). All hips had femoral head coverage of > 50% at end of treatment, and all were IHDI grade 1 at follow-up. In addition, the LP group underwent a 60% reduction in US use once stable. CONCLUSION Our study supports reducing the frequency of US assessment during PH treatment of DDH once a hip is reduced and centred.Cite this article: Bone Joint J 2022;104-B(9):1081-1088.
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Affiliation(s)
- Amy L Behman
- Department of Surgery, University of Toronto, Toronto, Canada.,Division of Orthopaedic Surgery, The Hospital for Sick Children, Toronto, Canada
| | - Catharine S Bradley
- Division of Orthopaedic Surgery, The Hospital for Sick Children, Toronto, Canada
| | - Connor L Maddock
- Division of Orthopaedic Surgery, The Hospital for Sick Children, Toronto, Canada
| | - Smriti Sharma
- Division of Orthopaedic Surgery, The Hospital for Sick Children, Toronto, Canada
| | - Simon P Kelley
- Department of Surgery, University of Toronto, Toronto, Canada.,Division of Orthopaedic Surgery, The Hospital for Sick Children, Toronto, Canada
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Ogawa T, Shimizu T, Asano T, Iwasaki N, Takahashi D. Radiological predictors associated with success of treatment for developmental dysplasia of hip using the Pavlik harness: A retrospective study. J Orthop Sci 2022; 27:1067-1072. [PMID: 34364753 DOI: 10.1016/j.jos.2021.06.010] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/14/2021] [Revised: 06/16/2021] [Accepted: 06/18/2021] [Indexed: 11/18/2022]
Abstract
BACKGROUND While various predictors of treatment outcome of Pavlik harness have been reported, appropriate indications for treatment and relationships between patient characteristics and outcome are unclear. The present study aimed to identify radiological predictors for successful Pavlik harness treatment of DDH at the initiation of treatment and investigate the progression of radiological characteristics after successful treatment. METHODS One-hundred-forty-two of 527 infants who visited our hospital for secondary screening of DDH were treated with the Pavlik harness. One-hundred-eight hips of 108 infants experienced successful treatment and could be followed up until 3 years of age (group S); treatment was unsuccessful within the first 2 weeks for 22 hips of 21 infants (group F). We investigated the Graf classification and radiological parameters. RESULTS We observed the ipsilateral-side measurements of distance A and B as defined by Yamamuro and Chene's method to be significantly smaller and greater, respectively, in group F compared with those of group S. Group F tended to exhibit the smaller distance A and larger distance B compared to the group S among the same Graf type. The cut-off values for successful treatment at were >7.4 mm at initiation of treatment for distance A and <11.2 mm for distance B. The acetabular index (AI) of the ipsilateral side at the initiation of treatment was significantly correlated with that at 1 and 3 years of age. Patients with an AI of >32° at the initiation of harness treatment were more likely to exhibit hip dysplasia at 3 years of age. CONCLUSIONS Radiographic parameters prior to the Pavlik harness could be predictors of treatment failure and DDH in the future. This study showed that AI at the initiation of treatment is associated with residual acetabular dysplasia, suggesting that radiographic assessment may be useful even considering the risks associated with radiation exposure.
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Affiliation(s)
- Takuya Ogawa
- Department of Orthopaedic Surgery, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Sapporo, Japan
| | - Tomohiro Shimizu
- Department of Orthopaedic Surgery, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Sapporo, Japan
| | - Tsuyoshi Asano
- Department of Orthopaedic Surgery, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Sapporo, Japan
| | - Norimasa Iwasaki
- Department of Orthopaedic Surgery, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Sapporo, Japan
| | - Daisuke Takahashi
- Department of Orthopaedic Surgery, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Sapporo, Japan.
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Aroojis A, Anne RP, Li J, Schaeffer E, Kesavan TMA, Shah S, Patwardhan S, Karnik A, Thanawala U. Surveillance for Developmental Dysplasia of the Hip in India: Consensus Guidelines From the Pediatric Orthopaedic Society of India, Indian Academy of Pediatrics, National Neonatology Forum of India, Indian Radiological and Imaging Association, Indian Federation of Ultrasound in Medicine and Biology, Federation of Obstetric and Gynaecological Societies of India, and Indian Orthopaedic Association. Indian Pediatr 2022. [DOI: 10.1007/s13312-022-2577-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Xu J, Yang Y, Yu K, Xu W, Bai G, Ye W, Shu Q, Chen W. Risk factors for re-dislocation after closed reduction in children with developmental dysplasia of the hip. Zhejiang Da Xue Xue Bao Yi Xue Ban 2022; 51:454-461. [PMID: 37202093 PMCID: PMC10264979 DOI: 10.3724/zdxbyxb-2022-0147] [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: 04/12/2022] [Accepted: 07/12/2022] [Indexed: 05/20/2023]
Abstract
OBJECTIVE To investigate the risk factors for re-dislocation after the closed reduction in children with developmental dysplasia of the hip (DDH). METHODS The clinical data of 88 children aged ≤ 18 months with DDH (103 hips) who were treated with adductor muscle relaxation + closed reduction + plaster fixation at the Children's Hospital, Zhejiang University School of Medicine from January 2015 to December 2017, were retrospectively analyzed. According to the diagnostic criteria of hip dislocation, patients were divided into two groups: reduction group and re-dislocation group. The univariate and multivariate logistic regression analysis were applied to identify the risk factors for the re-dislocation of children. RESULTS Eighty-six patients (99 hips) successively underwent the treatment. 69 hips were fixed at the first intention, 9 hips at the second intention, and a total of 78 hips with no re-dislocation occurred till the last follow-up with a rate of 78.8%. The univariate analysis showed that preoperative acetabular index (AI), International Hip Dysplasia Institute (IHDI) grade, intraoperative hip flexion angle, and intraoperative head-socket spacing were significantly related to the occurrence of re-dislocation after closed-reduction. The multivariate logistic regression analysis showed that preoperative AI > 40.5° ( OR=5.57, P<0.01), flexion angle < 80.5° ( OR=4.93, P<0.01) and head-socket distance > 6.95 mm ( OR=8.42, P<0.01) were risk factors for the re-dislocation. The area under the receiver operator characteristic curve was 0.91 when preoperative AI > 40.5°, flexion angle < 80.5°, head-socket distance > 6.95 mm, and IHDI grade were used to predict the occurrence of re-dislocation, and the sensitivity and specificity were 0.72 and 0.87, respectively. CONCLUSIONS Preoperative AI > 40.5°, intraoperative hip flexion angle < 80.5°, and head-socket distance > 6.95 mm are risk factors for postoperative re-dislocation in children with DDH. These risk factors combining with the IHDI grade would be better to predict the occurrence of re-dislocation.
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Affiliation(s)
- Jingfang Xu
- 1. Department of Pediatric Surgery, Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, National Regional Medical Center for Children, Hangzhou 310052, China
| | - Yi Yang
- 1. Department of Pediatric Surgery, Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, National Regional Medical Center for Children, Hangzhou 310052, China
| | - Kai Yu
- 1. Department of Pediatric Surgery, Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, National Regional Medical Center for Children, Hangzhou 310052, China
| | - Weize Xu
- 1. Department of Pediatric Surgery, Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, National Regional Medical Center for Children, Hangzhou 310052, China
| | - Guannan Bai
- 2. Division of Child Health Care, Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, National Regional Medical Center for Children, Hangzhou 310052, China
| | - Wensong Ye
- 1. Department of Pediatric Surgery, Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, National Regional Medical Center for Children, Hangzhou 310052, China
| | - Qiang Shu
- 1. Department of Pediatric Surgery, Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, National Regional Medical Center for Children, Hangzhou 310052, China
| | - Wenhao Chen
- 1. Department of Pediatric Surgery, Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, National Regional Medical Center for Children, Hangzhou 310052, China
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Liu J, Gao T, Li J, Shan H, Pan S. Evaluation of the short-term curative effect of closed reduction in the treatment of developmental dysplasia of the hip based on three-dimensional magnetic resonance imaging finite element analysis. BMC Musculoskelet Disord 2022; 23:455. [PMID: 35568888 PMCID: PMC9107141 DOI: 10.1186/s12891-022-05401-x] [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] [Received: 01/23/2022] [Accepted: 05/05/2022] [Indexed: 11/13/2022] Open
Abstract
Background Based on the Digital Imaging and Communications in Medicine (DICOM) data of three-dimensional magnetic resonance imaging (3D-MRI), finite element models of the hip joints of children with developmental dysplasia of the hip were established. The primary objectives included simulation and analysis of the finite element model pre- and post-closed reduction under different stances and loads, and evaluation of the size and distribution of von Mises stress in the acetabulum and femoral head pre- and post-operation and the short-term effects. Methods Acetabular index measurements of both the unaffected and affected sides were conducted, alongside International Hip Dysplasia Institute (IHDI) classification of the affected hip. Establishing the finite element model of both the affected and unaffected hips was based on the 3D-T1WI sequence DICOM data, using Mimics, 3-matic, and Ansys software, before and after closed reduction surgery. The size and distribution data of von Mises stress on the affected side of the acetabulum and femoral head were collected pre- and post-operation. Results The study indicated that the increasing acetabular index of the affected hip was directly proportional to the increasing severity based on IHDI classification (P < 0.05). Preoperative IHDI classification significantly correlated with the von Mises stress (r = 0.560–0.569, 0.562–0.564, P < 0.05). Under different stances and load conditions, the von Mises stress on the affected side post-operation was lower than that noted pre-operation (P < 0.01), while that on the acetabulum increased proportionally to the load. Although the magnitude and distribution of von Mises stress on the affected side of the acetabulum were similar to those on the healthy side post-operation, there were statistical differences between the two (P < 0.01). The von Mises stress of the lateral column of the femoral head post-operation was significantly lower than that noted pre-operation (P < 0.01). While the high-stress points of the lateral column disappeared post-operation, the von Mises stress was evenly distributed in the femoral head. Conclusions The 3D-MRI finite element could provide the von Mises stress value and distribution characteristics of the acetabulum and femoral head pre- and post-operation. Closed reduction can, therefore, improve the size and distribution of von Mises stress on the affected acetabulum and femoral head.
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Affiliation(s)
- Jiani Liu
- Department of Radiology, Cancer Hospital of China Medical University, Liaoning Cancer Hospital & Institute, Shenyang, China
| | - Tianyang Gao
- Department of Radiology, Shengjing Hospital of China Medical University, Shenyang, China.
| | - Jia Li
- School of Mechanical Engineering and Automation, Northeastern University, Shenyang, China
| | - Hui Shan
- School of Mechanical Engineering and Automation, Northeastern University, Shenyang, China
| | - Shinong Pan
- Department of Radiology, Shengjing Hospital of China Medical University, Shenyang, China
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Bozkurt C, Bekin Sarikaya PZ, Kaptan AY, Eren TK, Sarikaya B. Predictivity of International Hip Dysplasia Institute classification in Pavlik harness treatment and correlation with Graf ultrasonographic classification. J Pediatr Orthop B 2022; 31:232-236. [PMID: 34028378 DOI: 10.1097/bpb.0000000000000876] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
Hip ultrasonography applied according to Graf's criteria is frequently used in early diagnosis and monitoring of developmental dysplasia of the hip (DDH). Recently, the International Hip Dysplasia Institute (IHDI) classification has been proposed to be a prognostic indicator for patients with walking-age DDH. The purpose of this study is to evaluate the reliability of IHDI classification in the follow-up of patients with DDH diagnosed by ultrasonography scanning. A total of 69 hips of 38 patients (10 men, 28 women; mean age 59.9 ± 19.8 days, range 29-90 days) were diagnosed with DDH younger than 90 days of age. The AP pelvis radiographs of the patients who were diagnosed with DDH by ultrasound and classified according to the Graf method were evaluated and classified according to IHDI classification. A total of 52 hips were treated successfully with Pavlik harness treatment, 15 hips underwent closed reduction and pelvipedal casting (PPC) and 2 hips underwent open reduction and PPC after failed Pavlik harness treatment. Increasing IHDI grades correlated with the failure of Pavlik harness treatment (P = 0.001). Graf classification was not found to be predictive of successful Pavlik harness treatment (P = 0.482). There was no significant correlation between the IHDI classification and the Graf classification (Kappa = 0.079 ± 0.102, P = 0.402). The IHDI method is reliable in predicting the success of Pavlik harness treatment in patients diagnosed with DDH using the Graf method.
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Affiliation(s)
| | | | - Ahmet Yigit Kaptan
- Department of Orthopedics and Traumatology, University of Health Sciences, Dr. Sami Ulus Maternity, Children's Health and Diseases Training and Research Hospital
| | - Toygun Kagan Eren
- Department of Orthopedics and Traumatology, Ankara Training and Research Hospital, Ankara, Turkey
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Sllamniku S, Beqo BP, Krasniqi I, Tërshana A, Murtezani A, Quehenberger F, Haxhija EQ. Splint Duration and Not the Mode of Anesthesia Is the Main Factor Influencing Avascular Necrosis After Closed Reduction for Developmental Dysplasia of the Hip in Kosovo. Front Pediatr 2022; 10:850605. [PMID: 35558375 PMCID: PMC9090470 DOI: 10.3389/fped.2022.850605] [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] [Received: 01/07/2022] [Accepted: 03/21/2022] [Indexed: 11/22/2022] Open
Abstract
The aim of this study was to determine whether the use of analgesia and sedation (AS) as opposed to general anesthesia (GA) for closed reduction and spica casting of children with severe developmental dysplasia of the hip (DDH) influenced the long-term incidence of avascular necrosis (AVN). In a prospective, randomized, single-blinded clinical trial we investigated 100 pediatric patients with DDH type IIIa, IIIb, and IV (according to Graf classification), who were randomly assigned into the group receiving AS, and the group receiving GA. Baseline demographics, splint duration, and type of DDH were carefully assessed. The presence of AVN was assessed at the follow-up visits at 1 and 7 years after the end of treatment. The AS-group consisted of 50 patients (46 girls) with 76 hips affected (n = 11/Type-IIIa, n = 32/Type-IIIb, and n = 33/Type-IV). The GA-group consisted also of 50 patients (44 girls) with 78 hips involved (n = 15/Type-IIIa, n = 34/Type-IIIb, and n = 29/Type-IV). At 7-years follow-up, AVN was diagnosed in 9 of 154 hips (5.8%), 5 hips in the AS-group and 4 hips in the GA group. The logistic regression model showed no significant difference in AVN incidence between the AS and GA groups at 7-years follow-up (p = 0.27). The multivariate regression analysis showed that neither the type of DDH nor the age at diagnosis influenced the incidence of AVN (p = 0.48 and p = 0.28, respectively). Splint duration was identified as the only significant factor for the long-term incidence of AVN in the treatment of severe DDH. For every month of longer splint duration, the odds of AVN at 7-years follow-up increased by a factor of 3.81 (95%CI: 1.35-13.73, p = 0.02). Closed reduction and spica casting of children with severe DDH under AS can be considered a feasible alternative to management under GA. All efforts must be made to diagnose patients with DDH as early as possible and shorten the duration of splint treatment to prevent the development of AVN. Level of Evidence. Level II-1.
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Affiliation(s)
- Sabit Sllamniku
- Orthopedic Department, University Clinical Center of Kosovo, Prishtina, Republic of Kosovo
| | - Besiana P. Beqo
- Department of Postgraduate Medical Education, Global Clinical Scholars Research Program, Harvard Medical School, Boston, MA, United States
- Department of Pediatric and Adolescent Surgery, Medical University of Graz, Graz, Austria
| | - Islam Krasniqi
- Department of Anesthesiology, University Clinical Center of Kosovo, Prishtina, Republic of Kosovo
| | - Azem Tërshana
- Department of Pediatrics, Medical Faculty of Prishtina University, Prishtina, Republic of Kosovo
| | - Ardiana Murtezani
- Physical Medicine and Rehabilitation Department, University Clinical Center of Kosovo, Prishtina, Republic of Kosovo
| | - Franz Quehenberger
- Institute of Medical Informatics, Statistics and Documentation, University of Graz, Graz, Austria
| | - Emir Q. Haxhija
- Department of Pediatric and Adolescent Surgery, Medical University of Graz, Graz, Austria
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Yasin MS, Alisi MS, Hammad YS, Samarah OQ, Abu Hassan FO. Short versus Long-Leg Hip Spica After Closed Reduction in Developmental Dysplasia of the Hip: A Retrospective Comparative Study. Orthop Res Rev 2022; 14:71-76. [PMID: 35356129 PMCID: PMC8959724 DOI: 10.2147/orr.s353279] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2021] [Accepted: 03/15/2022] [Indexed: 11/30/2022] Open
Abstract
Purpose Closed reduction (CR) is a standard treatment for developmental dysplasia of the hip (DDH) after failed conservative treatment. After CR, the affected hip is held in the reduced position by a spica cast that typically extends below the knee (long). Above knee (short) spica cast is an alternative technique utilized by some pediatric orthopedic surgeons. We aimed to compare short versus long spica cast after CR in terms of success rate and complications. Methods Patients who underwent CR with short or long hip spica cast over a 3-year period (2016–2019) were evaluated for the success (sustainability of the reduction) and complications. The acute and long-term success were recorded retrospectively. Acute success was defined as concentric reduction of the hip confirmed by intraoperative arthrogram and immediate postoperative CT scan. Long-term success was defined as maintained reduction at 12 months’ post reduction. Results Forty-seven patients were included in our study. Long spica casts were used in 24 patients and short ones in the remaining 23. The overall acute and long-term success rates were 83% and 66%, respectively. The acute success rate of long spica was 87.5%, while short spica achieved 78.2%. On the long term, the success rate of short spica was higher than long one (73.9% vs 58.3%). Cox regression analysis showed that the type of cast (short vs long spica) was not correlated with acute success (P = 0.405), long-term success (P = 0.263), residual dysplasia (P = 0.405), or avascular necrosis (P = 0.053). Conclusion CR in DDH is an important line of management in the younger patient population and can save them an invasive open surgery later in life. A short leg spica could represent an easier and likely as successful alternative to the traditional long spica. More prospective future research is needed to validate our observational findings. Level of Evidence III.
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Affiliation(s)
- Mohamad S Yasin
- Department of Special Surgery, Division of Orthopaedics, School of Medicine, The University of Jordan, Amman, Jordan
| | - Mohammed S Alisi
- Department of Special Surgery, Division of Orthopaedics, School of Medicine, The University of Jordan, Amman, Jordan
| | - Yazan S Hammad
- Department of Special Surgery, Division of Orthopaedics, School of Medicine, The University of Jordan, Amman, Jordan
| | - Omar Q Samarah
- Department of Special Surgery, Division of Orthopaedics, School of Medicine, The University of Jordan, Amman, Jordan
| | - Freih O Abu Hassan
- Department of Special Surgery, Division of Orthopaedics, School of Medicine, The University of Jordan, Amman, Jordan
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Morris WZ, Chilakapati S, Hinds SA, Herring JA, Kim HKW. The Clinical Significance of Infolded Limbus on Postreduction Arthrogram in Developmental Dysplasia of the Hip. J Pediatr Orthop 2022; 42:e309-e314. [PMID: 35132011 DOI: 10.1097/bpo.0000000000002070] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
BACKGROUND The purpose of this study was to investigate whether presence of an infolded limbus on hip arthrogram at index closed reduction was associated with increased residual dysplasia or secondary surgery. METHODS We retrospectively reviewed all patients who underwent closed reduction for dysplasia of the hip with a minimum 2-year follow-up between 1980 and 2016. Demographic data was obtained including the age at reduction and severity of dislocation based on the International Hip Dysplasia Institute (IHDI) classification. Arthrograms performed at time of closed reduction were separately reviewed by 3 fellowship-trained pediatric orthopaedic surgeons to evaluate for an infolded limbus. The primary radiographic outcome was acetabular indices at 2 and 4 years postreduction. We also assessed the presence of avascular necrosis and rate of secondary reconstructive surgery for residual dysplasia. RESULTS A total of 182 hips in 165 patients underwent closed reduction at a mean age of 9.8±4.5 mo and were followed a mean of 9.0±4.9 y. An infolded limbus was identified in 20.3% (37/182) hips with substantial agreement among the 3 graders (Fleiss κ=0.75). The frequency of labral infolding increased with the severity of dislocation (8.8%% of IHDI II, 26.7% IHDI III, and 25.0% of IHDI IV hips; P=0.03). Hips with infolded limbus were older at reduction (12.4±5.3 vs. 9.2±5.8 mo, P=0.001). The mean acetabular index was higher in hips with infolded limbus than hips without at 2 years postreduction (34.8±4.8 vs. 32.6±5.8 degrees, respectively; P=0.04). However, multivariate analysis revealed that only the severity of dislocation predicted dysplasia at 2 years postreduction. No significant difference in acetabular index was seen at 4 years postreduction (27.2±7.4 vs. 25.4±6.5 degrees, P=0.24). There was no difference in avascular necrosis between groups (P=0.74). There was no difference in rate of secondary surgery between hips with labral infolding and those without (35% vs. 30%, respectively; P=0.52). CONCLUSIONS An infolded limbus was more common in older patients with more severe dislocations. However, it is not associated with increased residual dysplasia or secondary surgery and may have limited utility in decision-making during closed reduction. LEVEL OF EVIDENCE Level II-prognostic study.
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Affiliation(s)
- William Z Morris
- Scottish Rite for Children
- Southwestern Medical Center, University of Texas, Dallas, TX
| | - Sai Chilakapati
- Southwestern Medical Center, University of Texas, Dallas, TX
| | | | - John A Herring
- Scottish Rite for Children
- Southwestern Medical Center, University of Texas, Dallas, TX
| | - Harry K W Kim
- Scottish Rite for Children
- Southwestern Medical Center, University of Texas, Dallas, TX
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Huang P, Wang D, Mo Y, Zheng Y, Ning B. Teardrop and sourcil line (TSL): a novel radiographic sign that predicts residual acetabular dysplasia (RAD) in DDH after closed reduction. Transl Pediatr 2022; 11:458-465. [PMID: 35558977 PMCID: PMC9085947 DOI: 10.21037/tp-21-401] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/24/2021] [Accepted: 02/17/2022] [Indexed: 11/06/2022] Open
Abstract
BACKGROUND Residual acetabular dysplasia (RAD) is a major problem of developmental dysplasia of the hip (DDH) after closed reduction (CR). Several parameters have been investigated as ways of predicting RAD; however, prediction of RAD remains controversial. The purpose of this study was to evaluate the radiographic sign of teardrop and sourcil line (TSL) in pediatric patients with DDH to enable prediction of RAD after CR. METHODS One hundred and twenty-five hips with DDH treated with CR and followed up for at least 2 years were included in this study. The mean age at CR was 18.3 months (range, 9 to 32 months) and the average follow-up time was 50.2 months (range, 24 to 89 months). The acetabular index (AI) was measured at different time points. The cases were divided into two groups according to whether TSL became continuous or not. The relationships among TSL, AI and RAD were analyzed. RESULTS The RAD incidence was 73.6% (92/125) at the last follow-up. AI at CR and TSL were the prognostic factors for RAD (P=0.017 and 0.001, respectively). Thirty-four hips showed a continuous TSL. There was a lower RAD rate in the TSL continuous group (P<0.001). There was no statistical difference in the AI at CR between the TSL continuous and discontinuous groups; however, the level of AI after CR was lower in the TSL continuous group. The TSL of 74% (20/27) hips became continuous after acetabular osteotomy surgery. CONCLUSIONS The TSL continuous group had a lower AI and incidence of RAD than the discontinuous group. The TSL can be a predictive factor of RAD in DDH after CR and restore the continuous of TSL maybe a potential parameter that can help surgeons to make a judgment intra-operation.
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Affiliation(s)
- Peng Huang
- Department of Orthopaedics Surgery, National Children's Medical Center, Children's Hospital of Fudan University, Shanghai, China
| | - Dahui Wang
- Department of Orthopaedics Surgery, National Children's Medical Center, Children's Hospital of Fudan University, Shanghai, China
| | - Yueqiang Mo
- Department of Orthopaedics Surgery, National Children's Medical Center, Children's Hospital of Fudan University, Shanghai, China
| | - Yiming Zheng
- Department of Orthopaedics Surgery, National Children's Medical Center, Children's Hospital of Fudan University, Shanghai, China
| | - Bo Ning
- Department of Orthopaedics Surgery, National Children's Medical Center, Children's Hospital of Fudan University, Shanghai, China
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Xu W, Shu L, Gong P, Huang C, Xu J, Zhao J, Shu Q, Zhu M, Qi G, Zhao G, Yu G. A Deep-Learning Aided Diagnostic System in Assessing Developmental Dysplasia of the Hip on Pediatric Pelvic Radiographs. Front Pediatr 2022; 9:785480. [PMID: 35356707 PMCID: PMC8959123 DOI: 10.3389/fped.2021.785480] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/29/2021] [Accepted: 12/31/2021] [Indexed: 11/13/2022] Open
Abstract
Background Developmental dysplasia of the hip (DDH) is a common orthopedic disease in children. In clinical surgery, it is essential to quickly and accurately locate the exact position of the lesion, and there are still some controversies relating to DDH status. We adopt artificial intelligence (AI) to solve the above problems. Methods In this paper, automatic DDH measurements and classifications were achieved using a three-stage pipeline. In the first stage, we used Mask-RCNN to detect the local features of the image and segment the bony pelvis, including the ilium, pubis, ischium, and femoral heads. For the second stage, local image patches focused on semantically related areas for DDH landmarks were extracted by high-resolution network (HRNet). In the third stage, some radiographic results are obtained. In the above process, we used 1,265 patient x-ray samples as the training set and 133 samples from two other medical institutions as the verification set. The results of AI were compared with three orthopedic surgeons for reliability and time consumption. Results AI-aided diagnostic system's Tönnis and International Hip Dysplasia Institute (IHDI) classification accuracies for both hips ranged from 0.86 to 0.95. The measurements of numerical indices showed that there was no statistically significant difference between surgeons and AI. Tönnis and IHDI indicators were similar across the AI system, intermediate surgeon, and junior surgeon. Among some objective interpretation indicators, such as acetabular index and CE angle, there were good stability and consistency among the four observers. Intraclass consistency of acetabular index and CE angle among surgeons was 0.79-0.98, while AI was 1.00. The measurement time required by AI was significantly less than that of the doctors. Conclusion The AI-aided diagnosis system can quickly and automatically measure important parameters and improve the quality of clinical diagnosis and screening referral process with a convenient and efficient way.
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Affiliation(s)
- Weize Xu
- The Children's Hospital, Zhejiang University School of Medicine, Hangzhou, China
- National Clinical Research Center for Child Health, Hangzhou, China
- Department of Orthopedics, The Children's Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Liqi Shu
- Department of Neurology, The Warren Alpert Medical School of Brown University, Providence, RI, United States
| | - Ping Gong
- Deepwise AI Lab, Beijing Deepwise & League of PHD Technology Co., Ltd., Beijing, China
| | - Chencui Huang
- Deepwise AI Lab, Beijing Deepwise & League of PHD Technology Co., Ltd., Beijing, China
| | - Jingxu Xu
- Deepwise AI Lab, Beijing Deepwise & League of PHD Technology Co., Ltd., Beijing, China
| | - Jingjiao Zhao
- Deepwise AI Lab, Beijing Deepwise & League of PHD Technology Co., Ltd., Beijing, China
| | - Qiang Shu
- The Children's Hospital, Zhejiang University School of Medicine, Hangzhou, China
- National Clinical Research Center for Child Health, Hangzhou, China
- Sino-Finland Joint AI Laboratory for Child Health of Zhejiang Province, Beijing, China
| | - Ming Zhu
- The Children's Hospital, Zhejiang University School of Medicine, Hangzhou, China
- National Clinical Research Center for Child Health, Hangzhou, China
- Department of Orthopedics, The Children's Hospital, Zhejiang University School of Medicine, Hangzhou, China
- Sino-Finland Joint AI Laboratory for Child Health of Zhejiang Province, Beijing, China
| | - Guoqiang Qi
- The Children's Hospital, Zhejiang University School of Medicine, Hangzhou, China
- National Clinical Research Center for Child Health, Hangzhou, China
- Sino-Finland Joint AI Laboratory for Child Health of Zhejiang Province, Beijing, China
| | - Guoqiang Zhao
- The Children's Hospital, Zhejiang University School of Medicine, Hangzhou, China
- National Clinical Research Center for Child Health, Hangzhou, China
- Department of Orthopedics, The Children's Hospital, Zhejiang University School of Medicine, Hangzhou, China
- Sino-Finland Joint AI Laboratory for Child Health of Zhejiang Province, Beijing, China
| | - Gang Yu
- The Children's Hospital, Zhejiang University School of Medicine, Hangzhou, China
- National Clinical Research Center for Child Health, Hangzhou, China
- Sino-Finland Joint AI Laboratory for Child Health of Zhejiang Province, Beijing, China
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Fludder CJ, Keil BG, Neave MJ. Case report: Morphological changes evident after manual therapy in two cases of late-diagnosed developmental dysplasia of the hip. Front Pediatr 2022; 10:1045812. [PMID: 36776679 PMCID: PMC9909744 DOI: 10.3389/fped.2022.1045812] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/16/2022] [Accepted: 12/28/2022] [Indexed: 01/27/2023] Open
Abstract
BACKGROUND Late diagnosed Developmental Dysplasia of the Hip (DDH) is the detection of DDH after 3 months of age and is associated with significantly poorer outcomes than when diagnosed and managed early. Late diagnosed DDH has lower rates of success with bracing, higher rates of surgery and higher rates of complications, including avascular necrosis of the femoral head and early osteoarthritis of the hip. We describe two cases of late-diagnosed DDH which demonstrated changes in femoroacetabular joint morphology on radiographic interpretation after a 6-month trial period of manual therapy. CASE PRESENTATION Two cases (13 and 30 months of age) with late-diagnosed DDH presented to a private chiropractic clinic for conservative, non-bracing management. One case had unilateral DDH and the other bilateral DDH. A trial of manual therapy was utilized over a 6-month period. Both cases demonstrated changes to femoroacetabular morphology as well as improvements in gross motor activity and lower extremity muscle tone. CONCLUSION Manual therapy, as an adjunct or alternative to static bracing, may be of benefit in individuals with late-diagnosed DDH not responding to bracing, and prior to more invasive interventions. Additional cases of manual therapy-based management of this condition are required to inform the design of future trials to investigate this hypothesis.
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Doski J, Mosa L, Hassawi Q. An Upgrade of the International Hip Dysplasia Institute Classification for Developmental Dysplasia of the Hip. Clin Orthop Surg 2022; 14:141-147. [PMID: 35251552 PMCID: PMC8858906 DOI: 10.4055/cios21075] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/11/2021] [Revised: 10/08/2021] [Accepted: 10/08/2021] [Indexed: 11/06/2022] Open
Abstract
Background The purpose of the current study was to upgrade the International Hip Dysplasia Institute (IHDI) classification of developmental dysplasia of the hip (DDH). Methods The upgrading was suggested by adding the state of the acetabulum (type A for the normal acetabulum and type B for the dysplastic one). The pelvic radiographic films of 110 children suspected to have DDH were used by three observers to sort out the hips into grades according to the original form and the suggested upgraded one subsequently. Results The interobserver reliability between the observers improved from a good level (intraclass correlation coefficient [ICC], 0.885; 95% confidence interval [CI], 0.856–0.909) with the original form to an excellent level (ICC, 0.919; 95% CI, 0.898–0.936) with the upgraded form. When the upgraded form was used, only the grade 1 hips were divided into types A and B, while those classified as grades 2, 3, and 4 were all graded as type B only. Conclusions The IHDI classification of DDH can be upgraded into grade 1A, grade 1B, grade 2, grade 3, and grade 4.
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Affiliation(s)
- Jagar Doski
- Department of Surgery, College of Medicine, University of Duhok, Duhok, Iraq
| | - Laween Mosa
- Department of Surgery, College of Medicine, University of Duhok, Duhok, Iraq
| | - Qaidar Hassawi
- Department of Surgery, College of Medicine, University of Duhok, Duhok, Iraq
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Singh KA, Ganjwala D, Gupta P, Vazhayil Kottamttavida I, Varma M, Shah H. Reliability of 3 Radiologic Classifications for the Severity of the Developmental Dysplasia of the Hip in Children Older Than 4 Years. J Pediatr Orthop 2022; 42:23-29. [PMID: 34739436 DOI: 10.1097/bpo.0000000000002004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
BACKGROUND Tonnis, International Hip Dysplasia Institute (IHDI), and lateral metaphyseal height (LMH) are commonly used classifications for grading the severity of the developmental dysplasia of the hip. The reliability of these classifications is not widely studied in older children. The aim of the study was to evaluate the reliability of these 3 radiologic classifications in children older than 4 years and compared with children younger than 4 years and evaluate the cases with varied inter-rater reliability. METHODS A purposeful sample of 40 children with untreated developmental dysplasia of the hip with ages between 6 months to 8 years was studied for the assessment of the severity grading according to all 3 classifications. Six pediatric orthopaedic surgeons classified all hips for all 3 categorical classifications as per the original description. Inter-rater and intrarater reliability was calculated according to the intraclass correlation coefficient. The cases with different ratings were assessed in detail to evaluate the reasons for the varied rating. RESULTS The interobserver and intraobserver reliability of all 3 classifications were excellent [intraclass correlation coefficient (ICC): 0.935, 0.820, and 0.935 for IHDI, Tonnis, and LMH classification, respectively]. The excellent reliability was also observed in younger and older children. Interobserver reliability of only dysplastic hips (52 hips) was good for Tonnis (ICC: 0.741) and excellent for IHDI (ICC: 0.911) and LMH classification (ICC-0.9). The main reason for the varied rating was because of the varied perception of the superolateral margin of the acetabulum in few hips. CONCLUSION The inter-rater and intrarater reliability of all 3 classifications (IHDI, Tonnis, and LMH) is excellent. All classifications can be used till the age of 8 years. The difficulty in selecting the superolateral margin of the acetabulum is a major cause of inter-rater variability. LEVEL OF STUDY Level III.
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Affiliation(s)
- Kumar A Singh
- Department of Pediatric Orthopaedics, Manipal Academy of Higher Education, Kasturba Medical College, Manipal, Karnataka
| | | | | | | | | | - Hitesh Shah
- Department of Pediatric Orthopaedics, Manipal Academy of Higher Education, Kasturba Medical College, Manipal, Karnataka
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Zhang S, Song J, Wu Q, Fang J, Ning B. Collagen I in the Hip Capsule Plays a Role in Postoperative Clinical Function in Patients With Developmental Dysplasia of the Hip. Front Pediatr 2022; 10:918660. [PMID: 35633968 PMCID: PMC9130651 DOI: 10.3389/fped.2022.918660] [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] [Received: 04/12/2022] [Accepted: 04/22/2022] [Indexed: 11/13/2022] Open
Abstract
The aims of the present study is to evaluate the roles of collagen I and III in the hip capsule in the postoperative clinical function of patients with developmental dysplasia of the hip (DDH). Hip capsules from 155 hips of 120 patients were collected during surgery. The patients were divided into three groups according to age: I: 2-3.5 years; II: 3.5-5 years; and III: 5-6 years. Patient clinical function and radiographic outcomes were evaluated with the McKay scores and Severin classification. The expression of collagen I and III was detected through immunohistochemistry and quantitative reverse transcription polymerase chain reaction (RT-PCR) and analyzed according to age, sex, degree of dislocation and McKay classification. All patients received open reduction and pelvic osteotomy and/or femoral shortening osteotomy and achieved good results on the basis of postoperative X-ray imaging. The average follow-up time was 3.4 years (range 2-4.3 years). There were no changes in the expression of collagen III in the different groups. The expression of collagen I according to age and sex was not significantly different. Lower expression of collagen I was observed in DDH patients with a higher degree of dislocation according to the Tonnis grade. The highest expression of collagen I was detected in the group with poor clinical function according to the McKay classification. Collagen I is correlated with the degree of dislocation and is a risk factor for poor clinical function in DDH patients. Collagen I is correlated with the degree of hip dislocation and poor clinical function in DDH patients.
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Affiliation(s)
- Sicheng Zhang
- Department of Pediatric Orthopaedic, Anhui Provincial Children's Hospital, Hefei, China
| | - Jun Song
- Children's Hospital, Fudan University, Shanghai, China
| | - Qingjie Wu
- Anhui Provincial Children's Hospital, Hefei, China
| | - Jihong Fang
- Anhui Provincial Children's Hospital, Hefei, China
| | - Bo Ning
- Children's Hospital, Fudan University, Shanghai, China
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Kaneko H, Kitoh H, Kitamura A, Sawamura K, Hattori T. Docking phenomenon and subsequent acetabular development after gradual reduction using overhead traction for developmental dysplasia of the hip over six months of age. J Child Orthop 2021; 15:554-563. [PMID: 34987665 PMCID: PMC8670543 DOI: 10.1302/1863-2548.15.210143] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/13/2021] [Accepted: 10/16/2021] [Indexed: 02/03/2023] Open
Abstract
PURPOSE This study aimed to explore the docking of the femoral head into the acetabulum after gradual reduction (GR) using traction for developmental dysplasia of the hip (DDH) and the impact on subsequent acetabular development. METHODS A total of 40 patients with DDH (42 hips) undergoing GR using overhead traction and spica casting were retrospectively reviewed. The presence of inverted labrum and the coronal and axial femoral-acetabular distances (FADs) were compared between MRI immediately and five weeks after spica casting. The change in the acetabular index on anteroposterior pelvic radiographs were compared between hips with inverted labrum (residual group) and with normally-shaped labrum (normalized group) on follow-up MRI. RESULTS The mean age at reduction was 13.1 months (7 to 33) and the mean follow-up duration was 7.7 years (4 to 11). The rate of inverted labrum and the FADs significantly decreased between the MRI scans (all p-values < 0.001), and previous Pavlik harness failure had no negative effect on these decreases. The acetabular indices at the ages of three and five years in the residual group were significantly larger than those in the normalized group (both p-values < 0.001). Residual acetabular dysplasia was seen in 84.2% of the residual group compared with 34.8% of the normalized group (p = 0.002). CONCLUSION The docking phenomenon can occur during spica casting following GR using traction in children with DDH between the ages of six months and three years. The remaining inverted labrum at the cast removal may negatively affect subsequent acetabular development. LEVEL OF EVIDENCE III - retrospective comparative study.
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Affiliation(s)
- Hiroshi Kaneko
- Department of Orthopaedic Surgery, Aichi Children’s Health and Medical Center, Obu, Aichi, Japan.,Correspondence should be sent to Hiroshi Kaneko, Department of Orthopaedic Surgery, Aichi Children’s Health and Medical Center, 7-426 Moriokacho, Obu, Aichi, 474-8710, Japan. E-mail:
| | - Hiroshi Kitoh
- Department of Orthopaedic Surgery, Aichi Children’s Health and Medical Center, Obu, Aichi, Japan
| | - Akiko Kitamura
- Department of Orthopaedic Surgery, Aichi Children’s Health and Medical Center, Obu, Aichi, Japan
| | - Kenta Sawamura
- Department of Orthopaedic Surgery, Aichi Children’s Health and Medical Center, Obu, Aichi, Japan
| | - Tadashi Hattori
- Department of Orthopaedic Surgery, Aichi Children’s Health and Medical Center, Obu, Aichi, Japan
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Ghasseminia S, Hareendranathan AR, Jaremko JL. Narrative Review on the Role of Imaging in DDH. Indian J Orthop 2021; 55:1456-1465. [PMID: 35003536 PMCID: PMC8688667 DOI: 10.1007/s43465-021-00511-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/30/2021] [Accepted: 09/02/2021] [Indexed: 02/04/2023]
Abstract
BACKGROUND Developmental dysplasia of hip (DDH) represents a spectrum from acetabular dysplasia to fixed dislocation, giving disability through premature osteoarthritis. Most DDH cases continue to present without any known risk factors such as breech presentation, female sex, and family history. Incidence and population-based outcomes of DDH are difficult to reliably establish due to many DDH definitions and classifications using different types of examinations. PURPOSE This review takes a historical perspective on the role of imaging in DDH. METHODS Pelvic radiographs (X-Ray) were amongst the first medical images identifying DDH, but these have a limited role in infancy due to absent ossification. In the 1980s, ultrasound led to a large expansion in infant DDH screening. Unfortunately, even for well-trained users, DDH indices on ultrasound generally lack reproducibility, and have led to overdiagnosis of mild DDH. CT and MRI more thoroughly evaluate the 3D hip deformity in DDH, but are costly, less available and involve radiation dose and/or anaesthesia. RESULTS Recently 3D ultrasound has been used to characterize the 3D deformity of DDH more fully, with improved inter-observer reliability, particularly amongst novice users. 3D ultrasound is also well suited to automated image analysis, but high-resolution 3D probes are costly and not widely available. CONCLUSION Combining the latest handheld portable ultrasound probes and artificial intelligence analysis could lead to an inexpensive tool permitting practical mass population screening for DDH. Overall, our understanding of DDH is heavily influenced by the imaging tools used to visualize it and changing quickly with modern technology.
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Affiliation(s)
- Siyavash Ghasseminia
- Department of Radiology and Diagnostic Imaging, University of Alberta, 2A2.41 WC Mackenzie Health Sciences Centre, 8440 112 Street NW, Edmonton, AB T6G 2B7 Canada
| | - Abhilash Rakkunedeth Hareendranathan
- Department of Radiology and Diagnostic Imaging, University of Alberta, 2A2.41 WC Mackenzie Health Sciences Centre, 8440 112 Street NW, Edmonton, AB T6G 2B7 Canada
| | - Jacob L. Jaremko
- Department of Radiology and Diagnostic Imaging, University of Alberta, 2A2.41 WC Mackenzie Health Sciences Centre, 8440 112 Street NW, Edmonton, AB T6G 2B7 Canada
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Köse M, Yılar S, Topal M, Tuncer K, Aydın A, Zencirli K. Simultaneous versus staged surgeries for the treatment of bilateral developmental hip dysplasia in walking age: A comparison of complications and outcomes. Jt Dis Relat Surg 2021; 32:605-610. [PMID: 34842091 PMCID: PMC8650648 DOI: 10.52312/jdrs.2021.38] [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: 03/08/2021] [Accepted: 10/15/2021] [Indexed: 11/14/2022] Open
Abstract
OBJECTIVES This study aims to compare the radiological outcomes and rate of complication between single-stage and staged operation for the treatment of bilateral developmental dysplasia of the hip (DDH). PATIENTS AND METHODS A total of 100 patients (13 males, 87 females; mean age: 18.1±2.1 months; range, 12 to 36 months) with bilateral DDH who were older than 15 months of age and treated with open reduction (OR) or Pemberton pericapsular osteotomy (PPO) were retrospectively analyzed. Of the patients, 48 were operated with OR and 52 were operated with PPO. Improvements in acetabular indices, presence of avascular necrosis, radiological results, and other complications were noted. RESULTS There was no statistically significant difference in the preoperative acetabular indices, range of International Hip Dysplasia Institute (IHDI) classification, follow-up period, and age at the time of operation between the groups (p>0.05). There was no statistically significant difference in the acetabular indices, rate of avascular necrosis, and radiological results at the end of 24 months of follow-up between the groups (p>0.05). CONCLUSION Our study results show no significant difference in the radiological outcomes and complications between simultaneous and staged surgeries for the treatment of bilateral DDH in children in the walking age.
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Affiliation(s)
| | - Sinan Yılar
- Atatürk Üniversitesi Tıp Fakültesi Ortopedi ve Travmatoloji Anabilim Dalı, 25240 Yakutiye Erzurum, Türkiye.
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Karnik A, Lawande A, Lawande MA, Patkar D, Aroojis A, Bhatnagar N. Practice Essentials of Imaging in Early Diagnosis of DDH. Indian J Orthop 2021; 55:1466-1479. [PMID: 35003537 PMCID: PMC8688607 DOI: 10.1007/s43465-021-00539-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/09/2021] [Accepted: 09/27/2021] [Indexed: 02/04/2023]
Abstract
INTRODUCTION Developmental dysplasia of hip joint (DDH) is a dynamic progressive pathology which can tilt either way. The term strictly applies to primary dysplasia, where etiology is not clearly known. Secondary dysplasia can be due multiple causes, such as neuromuscular disorders, connective tissue disorders or skeletal syndromes. METHODS The etiology being multifactorial, it needs a multidisciplinary team to address the issue at hand. The management starts antenatally with a detailed history of any risk factors and a dedicated ultrasound of the foetus, since forewarned is forearmed. At birth, a paediatrician having a keen sense of DDH will perform Barlow's or Ortolani's manoeuvre and can be the first one to sound the alarm in the event of positive findings. How and when a Radiologist needs to step in will depend on inter-departmental discussions between the paediatrician and the orthopedician. RESULTS In the presence of positive clinical screening tests, and non-availability of ultrasound, a preliminary X ray pelvis AP view including both hip joints should be the requisitioned in a child of any age, particularly, if belonging to the high-risk group. If ultrasound is available, a screening exam till 6 months of age is recommended to rule out DDH. DISCUSSIONS India is known for its vast numbers and little babies with occult diseases are the first to bear the brunt of conditions which have very few symptoms to start with. DDH is one such condition which most unfortunately expresses itself as a symptom only when it's too late, i.e., most often when the child begins to walk. Ultrasound is the modality of choice in neonates; however, since India is a country of modest means, in majority of the regions, radiographs still remain the first line of investigation.
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Affiliation(s)
- Alka Karnik
- Head of Ultrasound Department, Nanavati Superspeciality Hospital, Mumbai, India
| | | | | | - Deepak Patkar
- Department of Imaging, Medical Services and Head, Nanavati Super -Speciality Hospital, Mumbai, India
| | - Alaric Aroojis
- grid.414135.60000 0001 0430 6611Department of Orthopaedics, Bai Jerbai Wadia Hospital for Children, Mumbai, India
| | - Nidhi Bhatnagar
- Deapratment of Radiology, Max Superspeciality Centre, Panchsheel, E-7, East of Kailash, New Delhi, 110065 India
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Pinto D, Aroojis A, Shah H, Patwardhan S, Venkatadass K, Sahu C, Schaeffer E, Mulpuri K. Demographic and Practice Variability Amongst Indian Centres in a Multicentre Prospective Observational Study on Developmental Dysplasia of the Hip. Indian J Orthop 2021; 55:1559-1567. [PMID: 35003542 PMCID: PMC8688623 DOI: 10.1007/s43465-021-00516-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/29/2021] [Accepted: 09/04/2021] [Indexed: 02/04/2023]
Abstract
BACKGROUND Since 2017, five Indian centres have enrolled into the International Hip Dysplasia Registry for prospective collection of data on Developmental Dysplasia of Hip (DDH). AIMS To assess how baseline patient characteristics and initial treatment modalities differ across these five centres. METHODS Registry data collected over 3 years were analyzed. Children with DDH that had radiograph-based diagnoses were included. RESULTS Collectively, there were 234 hips (181 patients), of which 218 had undergone surgery. Overall, median age at presentation was 25.3 months (IQR 16.8-46.0); female/male ratio was 2.6:1 (range 1.46-4.75:1); with 42%, 29%, and 29% unilateral left, bilateral and unilateral right hip dislocations respectively. Most were IHDI grade III and IV dislocations (94%). Closed reduction was performed at all but one centre, at median 15.3 months (IQR 9.6-21.1). Open reduction (OR) as a stand-alone procedure was performed at all centres, at median 20.8 months (IQR 15.4-24.9). Combination of OR with a single osteotomy, femoral (FO) or acetabular (AO), was performed at all centres at median 29.7 months (IQR 22.1-43.5). However, for the same age group, three centres exclusively performed FO, whereas the other two exclusively performed AO. The combination of OR with both FO and AO was used at all centres, at median 53.4 months (IQR 42.1-70.8). CONCLUSIONS The preliminary findings of this multi-centre study indicate similar patient demographics and diagnoses, but important differences in treatment regimens across the five Indian centres. Comparison of treatment regimens, using the 'centre' as a predictive variable, should allow us to identify protocols that give superior outcomes.
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Affiliation(s)
- Deepika Pinto
- grid.414135.60000 0001 0430 6611Department of Paediatric Orthopaedics, Bai Jerbai Wadia Hospital for Children, Mumbai, India
| | - Alaric Aroojis
- grid.414135.60000 0001 0430 6611Department of Paediatric Orthopaedics, Bai Jerbai Wadia Hospital for Children, Acharya Donde Marg, Parel, Mumbai, Maharashtra 400012 India
| | - Hitesh Shah
- grid.465547.10000 0004 1765 924XDepartment of Orthopaedics, Kasturba Medical College, Manipal, India
| | - Sandeep Patwardhan
- grid.489159.80000 0004 1767 0852Department of Orthopaedics, Sancheti Institute, Pune, India
| | - K. Venkatadass
- grid.415287.d0000 0004 1799 7521Department of Orthopaedics, Ganga Medical Centre, Coimbatore, India
| | - Chittaranjan Sahu
- Department of Orthopaedics, Balaji Institute of Surgery, Research and Rehabilitation, Tirupati, India
| | - Emily Schaeffer
- grid.414137.40000 0001 0684 7788Department of Orthopaedic Surgery, BC Children’s Hospital, Vancouver, BC Canada
| | - Kishore Mulpuri
- grid.414137.40000 0001 0684 7788Department of Orthopaedic Surgery, BC Children’s Hospital, Vancouver, BC Canada
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Liu J, Zhou W, Li L, Zhang L, Li Q, Wang E. The fate of inverted limbus in children with developmental dysplasia of the hip: Clinical observation. J Orthop Res 2021; 39:1433-1440. [PMID: 32946117 DOI: 10.1002/jor.24864] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/27/2020] [Revised: 08/19/2020] [Accepted: 08/31/2020] [Indexed: 02/04/2023]
Abstract
In this study, we observed the fate of the inverted limbus after closed reduction for the treatment of developmental dysplasia of the hip (DDH) and its impact on acetabular development. Clinical data were reviewed for 26 DDH patients with an inverted or overriding limbus after closed reduction for hip dysplasia. Patients were divided into a residual inversion group (19 cases, 22 hips) and a spontaneous resolution group (7 cases, 7 hips) according to the limbus status at the last follow-up. Differences in the osseous acetabular index (AI) and cartilaginous AI (CAI), the magnitude of limbus inversion, center-edge angle (CEA), height-to-width index (HWI) of the femoral head epiphysis, and avascular necrosis (AVN) at last follow-up were compared. There were no statistically significant differences in the preoperative AI and CAI between groups. The magnitude of limbus inversion after reduction and the AI at the final follow-up in the residual inversion group were both larger than those in the spontaneous resolution group. The CAI, CEA, and HWI were not significantly different between groups. The magnitude of limbus inversion in the residual inversion group did not significantly decrease over time. AVN occurred in five hips in the residual inversion group. No cases of AVN occurred in the spontaneous resolution group. After closed reduction, the inverted limbus was not absorbed in the majority of cases; instead, it evolved into a thin layer of fibrous tissue embedded between the femoral head and acetabulum. This may delay the endochondral ossification of the acetabulum.
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Affiliation(s)
- Jiahui Liu
- Department of Pediatric Orthopedics, Shengjing Hospital of China Medical University, Shenyang, China
| | - Weizheng Zhou
- Department of Pediatric Orthopedics, Shengjing Hospital of China Medical University, Shenyang, China
| | - Lianyong Li
- Department of Pediatric Orthopedics, Shengjing Hospital of China Medical University, Shenyang, China
| | - Lijun Zhang
- Department of Pediatric Orthopedics, Shengjing Hospital of China Medical University, Shenyang, China
| | - Qiwei Li
- Department of Pediatric Orthopedics, Shengjing Hospital of China Medical University, Shenyang, China
| | - Enbo Wang
- Department of Pediatric Orthopedics, Shengjing Hospital of China Medical University, Shenyang, China
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Lu W, Li L, Zhang L, Li Q, Wang E. Development of acetabular anteversion in children with normal hips and those with developmental dysplasia of the hip: a cross-sectional study using magnetic resonance imaging. Acta Orthop 2021; 92:341-346. [PMID: 33416015 PMCID: PMC8231414 DOI: 10.1080/17453674.2020.1866928] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/08/2023] Open
Abstract
Background and purpose - Acetabular anteversion (AA) is related to hip function. Most previous studies were based on radiographic investigations that determine osseous acetabular anteversion (OAA). But children's acetabulum is mostly composed of cartilage; the cartilaginous acetabular anteversion (CAA) represents the real anteversion of the acetabulum. We measured OAA and CAA in children of various ages using MRI, and compared the developmental patterns between children with normal hips and those with developmental dysplasia of the hip (DDH).Patients and methods - The OAA and CAA were measured on MRI cross-sections of the hips in 293 children with normal hips (average age 8 years), and in 196 children with DDH (average age 34 months). Developmental patterns of OAA and CAA in children with normal hips were determined through age-based cross-sectional analysis. Differences in OAA and CAA between children with normal hips and those with DDH were compared.Results - Normal OAA increased from mean 8.7° (SD 3.2) to 12° (3.0) during the first 2 years of life and remained unchanged until 9 years of age. From 9 to 16 years, the OAA showed a minimal increase of 2°-3°. The normal CAA increased rapidly from a mean of 12° (3.1) to 15° (2.7) within the first 2 years of life, and remained constant at 15° (SD 3.4) until 16 years of age. The age-matched average OAA in the normal and DDH cases was 11° (3.2) and 15° (3.0), respectively (p < 0.001). The age-matched average CAA in normal and DDH cases was 17° (4.2) and 23° (4.5), respectively (p < 0.001). Similarly, there was a significant difference in OAA and CAA between the uninvolved hips in unilateral DDH and normal cases (p < 0.001).Interpretation - The CAA was fully formed at birth in normal children, and remained unchanged until adulthood, whereas the OAA increased with age. The OAA and CAA were both over-anteverted in DDH children. MRI evaluation is of importance in children during skeletal development when planning hip surgery.
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Affiliation(s)
- Wei Lu
- Department of Pediatric Orthopedics, Shengjing Hospital of China Medical University, Shenyang, Liaoning Province, China
| | - Lianyong Li
- Department of Pediatric Orthopedics, Shengjing Hospital of China Medical University, Shenyang, Liaoning Province, China,Correspondence: LL:
| | - Lijun Zhang
- Department of Pediatric Orthopedics, Shengjing Hospital of China Medical University, Shenyang, Liaoning Province, China
| | - Qiwei Li
- Department of Pediatric Orthopedics, Shengjing Hospital of China Medical University, Shenyang, Liaoning Province, China
| | - Enbo Wang
- Department of Pediatric Orthopedics, Shengjing Hospital of China Medical University, Shenyang, Liaoning Province, China
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