Medial Protrusio Technique in Cementless Total Hip Arthroplasty for Developmental Dysplasia of the Hip: A Prospective 6- to 9-Year Follow-Up of 43 Consecutive Patients

2016 ◽  
Vol 31 (8) ◽  
pp. 1761-1766 ◽  
Author(s):  
Guo-Chun Zha ◽  
Jun-Ying Sun ◽  
Kai-Jin Guo ◽  
Feng-Chao Zhao ◽  
Yong Pang ◽  
...  
Keyword(s):  
Total Hip Arthroplasty ◽  
Hip Arthroplasty ◽  
Developmental Dysplasia ◽  
Total Hip ◽  
Cementless Total Hip Arthroplasty ◽  
Dysplasia Of The Hip

scholarly journals Treatment of Crowe IV developmental dysplasia of the hip with cementless total hip arthroplasty and shortening subtrochanteric osteotomy

2019 ◽  
Vol 47 (7) ◽  
pp. 3223-3233 ◽  
Author(s):  
Tang Liu ◽  
Sisi Wang ◽  
Guoliang Huang ◽  
Wanchun Wang
Keyword(s):  
Total Hip Arthroplasty ◽  
Hip Arthroplasty ◽  
Developmental Dysplasia ◽  
Harris Hip Score ◽  
Acetabular Cup ◽  
Total Hip ◽  
Cementless Total Hip Arthroplasty ◽  
The Mean ◽  
Dysplasia Of The Hip

Objective This study was performed to document the clinical and radiographic results of consecutive patients with Crowe IV developmental dysplasia of the hip (DDH) treated by cementless total hip arthroplasty (THA) using an S-ROM femoral component with shortening derotational subtrochanteric osteotomy. Methods Twenty-three hips of 21 patients with Crowe IV DDH were treated by cementless THA combined with shortening derotational subtrochanteric osteotomy from January 2005 to January 2011. The mean preoperative modified Harris hip score (mHHS) and University of California, Los Angeles (UCLA) activity score were 40.7 and 4.2, respectively. Results The mean follow-up was 105 months. The mean mHHS and UCLA score improved to 87.0 and 9.1, respectively, at the latest follow-up. Nine of the 23 hips had a negative Trendelenburg sign. One of the 23 hips was outside the Lewinnek acetabular cup inclination safe range, and 3 of the 23 hips were outside the Lewinnek acetabular cup anteversion safe range. The probability of prosthesis survival was 100% at 5 years and 91.3% at 10 years. Conclusion Patients with Crowe IV DDH can be treated by cementless THA combined with shortening derotational subtrochanteric osteotomy. This method can greatly improve hip joint function and relieve pain without significant complications.

scholarly journals High Hip Center Technique in Total Hip Arthroplasty for Crowe Type II-III Developmental Dysplasia: Results of Midterm Follow-up

2020 ◽  
Author(s):  
Junmin Shen ◽  
Yonggang Zhou ◽  
Jingyang Sun ◽  
Haiyang Ma ◽  
Yinqiao Du ◽  
...  
Keyword(s):  
Total Hip Arthroplasty ◽  
Confidence Interval ◽  
Hip Arthroplasty ◽  
Developmental Dysplasia ◽  
Harris Hip Score ◽  
Total Hip ◽  
Group A ◽  
Group B ◽  
Dysplasia Of The Hip

Abstract Background: High hip center technique is still controversial about the survivorship of prothesis and postoperative complications. We aimed to show the utility of high hip center technique used in patients with Crowe II-III developmental dysplasia of the hip at the midterm follow-up and evaluated the clinical and radiographic results between different heights of hip center.Methods: We retrospectively evaluated 69 patients (85 hips) with Crowe II-III dysplasia who underwent a high hip center cementless total hip arthroplasty at a mean follow up of 8.9 years (range, 6.0-14.1years). The patients were divided into two groups according to the height of hip center, respectively group A (≥22mm and <28mm) and group B (≥28mm). Radiographic, functional and survivorship outcomes were evaluated.Results: There were no statistically significant differences between two groups in horizontal distance, offset, abductor lever arm, leg length discrepancy and cup inclination. At the final follow up, the mean WOMAC and Harris hip score were significantly improved in both groups. Of the 85 hips, 7 hips (8.2%) showed a positive Trendelenburg sign. Besides, 6 patients (8.7%) presented with a limp. No significant differences were shown regarding the Harris hip score, WOMAC score, Trendelenburg sign and limp between two groups. The Kaplan-Meier implants survivorship rates at the final follow-up for all-causes revisions in group A and group B were similar (96.7% [95% confidence interval, 90.5%-100%] and 96.2% [95% confidence interval, 89.0%-100%], respectively).Conclusions: The high hip center technique is a valuable alternative to achieve excellent midterm results for Crowe II-III developmental dysplasia of the hip.

scholarly journals High Hip Center Technique in Total Hip Arthroplasty for Crowe Type II-III Developmental Dysplasia: Results of Midterm Follow-up

2020 ◽  
Author(s):  
Junmin Shen ◽  
Yonggang Zhou ◽  
Jingyang Sun ◽  
Haiyang Ma ◽  
Yinqiao Du ◽  
...  
Keyword(s):  
Total Hip Arthroplasty ◽  
Confidence Interval ◽  
Hip Arthroplasty ◽  
Developmental Dysplasia ◽  
Harris Hip Score ◽  
Total Hip ◽  
Group A ◽  
Group B ◽  
Dysplasia Of The Hip

Abstract Background: High hip center technique is still controversial about the survivorship of prothesis and postoperative limp. We aimed to show the utility of high hip center technique used in patients with Crowe II-III developmental dysplasia of the hip at the midterm follow-up and evaluated the clinical and radiographic results between different heights of hip center.Methods: We retrospectively evaluated 69 patients (85 hips) with Crowe II-III dysplasia who underwent a high hip center cementless total hip arthroplasty at a mean follow up of 8.9 years (range, 6.0-14.1). The patients were divided into two groups according to the height of hip center, respectively group A (≥22mm and <28mm) and group B (≥28mm). Radiographic, functional and survivorship outcomes were evaluated.Results: There were no statistically significant differences between two groups in horizontal distance, offset, abductor lever arm, leg length discrepancy and cup inclination. At the final follow up, the WOMAC and Harris hip scores were excellent in both groups. Of the 85 hips, 7 (8.2%) showed a positive Trendelenburg sign. Besides, 6 patients (8.7%) had a symptom of claudication. No significant differences were shown regarding the Harris hip score, WOMAC score, Trendelenburg sign and claudication between two groups. The Kaplan-Meier 8-year implants survivorship rates for all-causes revisions in group A and group B were similar (96.7% [95% confidence interval, 90.5%-100%] and 96.2% [95% confidence interval, 89.0%-100%], respectively).Conclusions: The high hip center technique is a valuable alternative to achieve excellent midterm results for Crowe II-III developmental dysplasia of the hip, preferably combined with COC interface or high crosslinked polyethylene liner.

Postoperative radiographic evaluation and simulation study for optimal cup placement in high-hip centre total hip arthroplasty

2019 ◽  
pp. 112070001988454
Author(s):  
Tomoya Takasago ◽  
Tomohiro Goto ◽  
Keizo Wada ◽  
Daisuke Hamada ◽  
Koichi Sairyo
Keyword(s):  
Total Hip Arthroplasty ◽  
Hip Arthroplasty ◽  
Simulation Study ◽  
Developmental Dysplasia ◽  
Radiographic Evaluation ◽  
3 Dimensional ◽  
Total Hip ◽  
Bone Coverage ◽  
Dysplasia Of The Hip

Background: Achieving favourable outcomes in high-hip centre reconstruction in hip dysplasia requires the optimal cup height and size, which can provide sufficient bone coverage for stable cup fixation that fits the anteroposterior acetabular rim without increasing the cup height more than necessary. Methods: We retrospectively reviewed 214 patients who underwent primary total hip arthroplasty (THA) and identified 30 hips with Crowe II ( n = 15) or III ( n = 15) developmental dysplasia of the hip (DDH). We measured the cup-centre-edge angle (cup-CE) and the vertical and horizontal distances from the teardrop. In a simulation study, we examined the cup-CE and optimal cup size by changing the cup height in 5-mm increments over a distance of 15–40 mm above the inter-teardrop line using a 3-dimensional template system. Results: Postoperative radiographic evaluation revealed a mean cup-CE of 19.9° in Crowe II hips and 15.2° in Crowe III hips; the respective mean vertical distances were 26.6 mm and 27.6 mm ( p = 0.511). There was no evidence of cup loosening or lateralisation at a minimum of 7 years (7–11 years) follow-up. Simulation showed that the hip centre needed to be elevated to 20 mm to acquire a cup-CE of more than 0°. More than 10° of cup-CE could be expected by elevating the hip centre to 25 mm in both Crowe II and III. Conclusions: Even in severe DDH, a high-hip centre positioned approximately 25 mm superior to the inter-teardrop line was sufficient to achieve optimal bone coverage, which could lead to more secure cup fixation.

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