scholarly journals Model to Predict Need for Subtrochanteric Shortening Osteotomy During Total Hip Arthroplasty for Crowe Type IV Developmental Dysplasia

2020 ◽  
Vol 26 ◽  
Author(s):  
Hai-yang Ma ◽  
Jing-yang Sun ◽  
Yin-qiao Du ◽  
Zhi-sen Gao ◽  
Jun-min Shen ◽  
...  
Keyword(s):  
Total Hip Arthroplasty ◽  
Hip Arthroplasty ◽  
Developmental Dysplasia ◽  
Total Hip ◽  
Type Iv ◽  
Shortening Osteotomy

How to equalize the leg length in total hip arthroplasty for patients with unilateral Crowe type IV developmental dysplasia of the hip

2020 ◽  
Author(s):  
Yinqiao Du ◽  
Jingyang Sun ◽  
Haiyang Ma ◽  
Sen Wang ◽  
Ming Ni ◽  
...  
Keyword(s):  
Total Hip Arthroplasty ◽  
Hip Arthroplasty ◽  
Developmental Dysplasia ◽  
Leg Length ◽  
Greater Trochanter ◽  
Femoral Length ◽  
Total Hip ◽  
Type Iv ◽  
The Mean ◽  
Dysplasia Of The Hip

Abstract Background: The purpose of this study was to explore that how to equalize the leg length in total hip arthroplasty (THA) with shortening subtrochanteric osteotomy (SSTO) or not for unilateral Crowe type IV developmental dysplasia of the hip (DDH) through the evaluation of the postoperative full-length anteroposterior radiographs. Methods: The postoperative radiographs of 60 patients with unilateral Crowe type IV DDH from July 2012 to May 2019 were retrospectively reviewed. These data included leg length, femoral length, height of center of rotation (COR) of hip, height of greater trochanter, and depth of the sleeve or cone. Patients with leg length discrepancy (LLD) < 10 mm were defined as the non-LLD group. Results: In the non LLD group (26 patients of SSTO and 22 of non-SSTO), the femoral length both SSTO and non-SSTO groups were significantly shorter on operated side, compared with the contralateral side, and the mean discrepancy in SSTO group was approximately equal to the mean length of SSTO. The mean height of COR of hip on operated sides both SSTO and non-SSTO groups were 13.2 mm, and the contralateral sides were 15.2 mm and 15.5 mm, respectively. The depth of the sleeve or cone between SSTO and non-SSTO groups were 21.7 mm and 30.6 mm, respectively. The depth of the sleeve or cone in SSTO group was negatively correlated with the length of SSTO. The height of the greater trochanter of the operated and contralateral sides were 5.3 mm and 16.6 mm in SSTO group, and those in the non-SSTO group were 13.2 mm and 17.2 mm. Conclusions: SSTO leaded to femoral shortening on the operated side for patients with unilateral Crowe type IV DDH. The position of sleeve or cone should be close to the apex of greater trochanter to compensate the lengh of SSTO.

scholarly journals Total hip arthroplasty with rectangular stems and subtrochanteric transverse shortening osteotomy in Crowe type IV hips: a retrospective study

2019 ◽  
Vol 5 (2) ◽  
pp. 234-242 ◽  
Author(s):  
Yusuf Erdem ◽  
Dogan Bek ◽  
Zafer Atbasi ◽  
Cagri Neyisci ◽  
Cemil Yildiz ◽  
...  
Keyword(s):  
Retrospective Study ◽  
Total Hip Arthroplasty ◽  
Hip Arthroplasty ◽  
Total Hip ◽  
Type Iv ◽  
Shortening Osteotomy

Preliminary application of 3D-printed individualised guiding templates for total hip arthroplasty in Crowe type IV developmental dysplasia of the hip

2020 ◽  
pp. 112070002094800
Author(s):  
Qiang Tu ◽  
Huan-wen Ding ◽  
Hu Chen ◽  
Jian-jian Shen ◽  
Qiu-ju Miao ◽  
...  
Keyword(s):  
Total Hip Arthroplasty ◽  
Hip Arthroplasty ◽  
Surgical Planning ◽  
Developmental Dysplasia ◽  
Femoral Osteotomy ◽  
Lower Limbs ◽  
Total Hip ◽  
Type Iv ◽  
3D Printed ◽  
Dysplasia Of The Hip

Objective: To evaluate the feasibility and accuracy of three-dimensional (3D)-printed individualised guiding templates in total hip arthroplasty (THA) for the treatment of developmental dysplasia of the hip (DDH). Methods: 12 hips in 12 patients with Crowe type IV DDH were treated with THA. A 3D digital model of the pelvis and lower limbs was reconstructed using the computed tomography data of the patients. Preoperative surgical simulations were performed to determine the most suitable surgical planning, including femoral osteotomy and prosthesis placement. Based on the ideal surgical planning, individualised guiding templates were designed by software, manufactured using a 3D printer, and used in acetabulum reconstruction and femoral osteotomy during surgery. Results: 12 patients were followed up for an average of 72.42 months (range 38–135 months). During surgery, the guiding template for each case was matched to the bony markers of the acetabulum and proximal femur. Preoperative and follow-up Harris hip scores were 34.2 ± 3.7 and 85.2 ± 4.2; leg length discrepancy, 51.5 ± 6.5 mm and 10.2 ± 1.5 mm; and visual analogue scale scores, 6.2 ± 0.8 and 1.3 ± 0.3, respectively, with statistical difference. Shortened deformity and claudication of the affected limb were obviously improved after surgery. However, 1 patient had artificial hip dislocation 2 weeks after surgery, and another patient had sciatic nerve traction injury, both of whom recovered after physical treatment. Conclusions: Preoperative surgical simulation and 3D-printed individualised guiding templates can fulfil surgeon-specific requirements for the treatment of Crowe type IV DDH. Accurate THA can be achieved using 3D-printed individualised templates, which provide a new personalised surgical plan for the precise positioning and orientation of acetabular reconstruction and femoral osteotomy.

scholarly journals Leg Length Balance in Total Hip Arthroplasty for Patients with Unilateral Crowe Type IV Developmental Dysplasia of the Hip

2020 ◽  
Vol 12 (3) ◽  
pp. 749-755 ◽  
Author(s):  
Yin‐qiao Du ◽  
Jing‐yang Sun ◽  
Hai‐yang Ma ◽  
Sen Wang ◽  
Ming Ni ◽  
...  
Keyword(s):  
Total Hip Arthroplasty ◽  
Hip Arthroplasty ◽  
Developmental Dysplasia ◽  
Leg Length ◽  
Total Hip ◽  
Type Iv ◽  
Dysplasia Of The Hip
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