An oblique osteotomy is better for subtrochanteric shortening in total hip arthroplasty for high hip dislocation: a mechanical comparison of four techniques

2020 ◽  
pp. 112070002095799
Author(s):  
Dogan Atlihan ◽  
Cem Yildirim ◽  
Osman Gorkem Muratoglu ◽  
Duran Can Muslu ◽  
Mazhar Tokgözoğlu ◽  
...  
Keyword(s):  
Total Hip Arthroplasty ◽  
Hip Arthroplasty ◽  
Femoral Stem ◽  
Hip Dislocation ◽  
Developmental Dysplasia ◽  
Torsional Stiffness ◽  
Test Model ◽  
Total Hip ◽  
Oblique Osteotomy ◽  
Femoral Shortening

Background: Subtrochanteric femoral shortening is used during total hip arthroplasty for high hip dislocation in developmental dysplasia of hip patients. Methods: We mechanically tested the stability of various commonly used subtrochanteric osteotomy techniques. As the equivalent of a femoral stem placed in a shortened femur without any stable fixation at the osteotomy line, 2 polyvinylchloride pipes were loosely intertwined. 4 different osteotomies (Z-subtrochanteric osteotomy, oblique-45° osteotomy, double Chevron-90° and 120° subtrochanteric osteotomy) were simulated. Torsional and axial loads were applied, and torsional stiffness was calculated for each test model. Results: Z, double Chevron-90° and 120° subtrochanteric osteotomy models demonstrated lower mean torsional stiffness than oblique-45° osteotomy. With the highest torsional stiffness oblique-45° provides the best stability for treatment of high dislocation hips when a subtrochanteric osteotomy is added. Conclusions: This matches our previous clinical experience. Oblique osteotomy may also provide higher contact surfaces in the osteotomy lines to promote bone healing.

scholarly journals Total Hip Arthroplasty after Treatment of Pseudojoint Infection in a Patient with a Highly Dislocated Hip

2013 ◽  
Vol 2013 ◽  
pp. 1-4 ◽  
Author(s):  
Kyung-Soon Park ◽  
Jong-Keun Seon ◽  
Seon-Yoon Nah ◽  
Taek-Rim Yoon
Keyword(s):  
Total Hip Arthroplasty ◽  
Infection Control ◽  
Hip Arthroplasty ◽  
English Literature ◽  
Hip Dislocation ◽  
Developmental Dysplasia ◽  
Hip Pain ◽  
Total Hip ◽  
Thorough Debridement ◽  
Dysplasia Of The Hip

Infection at the pseudoacetabulum in a patient with a high hip dislocation has not been reported previously in the English literature. We report a case of total hip arthroplasty in a 28-year-old female who presented to us with hip pain following debridement of the infected pseudojoint in a case of neglected developmental dysplasia of the hip. The infection was treated with thorough debridement and drainage. However, even after achieving complete infection control, this patient complained of disabling right hip joint pain. Total hip arthroplasty with subtrochanteric osteotomy was performed to relieve the pain and improve gait. After surgery, the patient's symptoms were relieved. We consider that in this case of acute pseudojoint infection simple arthrotomy and debridement combined with irrigation and drainage provide effective treatment. But muscle weakness and more increased joint laxity can cause hip pain even after infection control. So total hip arthroplasty is likely to be necessary after the infection has been controlled in a patient with a highly dislocated hip.

scholarly journals Dislocation of a Polished Femoral Stem following a Cemented Total Hip Arthroplasty: A Report of 2 Cases

2005 ◽  
Vol 13 (1) ◽  
pp. 73-75 ◽  
Author(s):  
VS Pai
Keyword(s):  
Total Hip Arthroplasty ◽  
Hip Arthroplasty ◽  
Open Reduction ◽  
Femoral Stem ◽  
Hip Dislocation ◽  
Total Hip ◽  
Proximal Migration ◽  
Cemented Total Hip Arthroplasty

We report 2 cases of hip dislocation after a total hip arthroplasty, which could not be successfully reduced by closed method. Post-manipulation radiographs revealed proximal migration of the prosthesis in both cases, which required open reduction. The pathogenesis and treatment of this hip dislocation is discussed.

scholarly journals Mid-Term Outcomes of Cemented Stem and Subtrochanteric Shortening Derotational Osteotomy in Total Hip Arthroplasty for Crowe IV Developmental Dysplasia

2021 ◽  
Author(s):  
Zhe-Yu Huang ◽  
Jing Ling ◽  
Zhi-Min Zeng ◽  
Zheng-Lin Di ◽  
Jun-Hui Zhang ◽  
...  
Keyword(s):  
Total Hip Arthroplasty ◽  
Hip Arthroplasty ◽  
Cement Leakage ◽  
Developmental Dysplasia ◽  
Harris Hip Score ◽  
Total Hip ◽  
Derotational Osteotomy ◽  
Femoral Shortening ◽  
Cemented Stem ◽  
The Mean

Abstract Background Performing total hip arthroplasty (THA) in patients with Crowe IV developmental dysplasia of the hip (DDH) is technically challenging. Subtrochanteric shortening osteotomy is typically required for placing the acetabular component within the anatomic hip center. However, the outcomes of subtrochanteric osteotomy using cemented components are not widely reported. This study aimed to evaluate the outcomes of cemented stem THA with subtrochanteric femoral shortening and transverse derotational osteotomy in patients with Crowe IV DDH.Methods We retrospectively evaluated data of patients with Crowe IV DDH who underwent cemented stem THA with subtrochanteric femoral shortening and transverse derotational osteotomy between 2010 and 2018. Patients who underwent surgery at the hip joint were excluded. Data regarding pre- and postoperative clinical and radiological parameters were collected and reviewed.Results Among 14 patients included (14 hips), the mean age was 60.4 (range, 47–73) years. The mean Harris hip score improved from 40.7 to 87.7. The mean limb length discrepancy reduced from 52 mm to 12.7 mm. No neurologic deficits were noted. The mean osteotomy union time was 10.6 months. Delayed union and postoperative dislocation were observed in one and two patients, respectively. Cement leakage into the osteotomy gap was observed in one patient. No revisions were required. No signs of loosening or migration were observed. Conclusions Cemented stem THA combined with subtrochanteric femoral shortening and transverse derotational osteotomy is safe and effective for the treatment of patients with Crowe IV DDH. The cemented femoral component showed promising mid-term follow up results. However, cement leakage affects bone healing. Osteotomy and cementing should be performed meticulously.Trial Registration: Retrospectively registered

scholarly journals The accuracy of digital templating in cementless total hip arthroplasty in dysplastic hips

2021 ◽  
Vol 22 (1) ◽  
Author(s):  
Emelie Kristoffersson ◽  
Volker Otten ◽  
Sead Crnalic
Keyword(s):  
Total Hip Arthroplasty ◽  
Hip Arthroplasty ◽  
Femoral Stem ◽  
Developmental Dysplasia ◽  
Leg Length ◽  
Acetabular Cup ◽  
Digital Templating ◽  
Total Hip ◽  
Implant Size ◽  
Crowe Classification

Abstract Background Total hip arthroplasty (THA) for developmental dysplasia of the hip (DDH) is a complex procedure due to associated anatomical abnormalities. We studied the extent to which preoperative digital templating is reliable when performing cementless THA in patients with DDH. Methods We templated and compared the pre- and postoperative sizes of the acetabular and femoral components and the center of rotation (COR), and analysed the postoperative cup coverage, leg length discrepancy (LLD), and stem alignment in 50 patients (56 hips) with DDH treated with THA. Results The implant size exactly matched the template size in 42.9% of cases for the acetabular component and in 38.2% of cases for the femoral component, whereas the templated ±1 size was used in 80.4 and 81.8% of cases for the acetabular and femoral components, respectively. There were no statistically significant differences between templated and used component sizes among different DDH severity levels (acetabular cup: p = 0.30 under the Crowe classification and p = 0.94 under the Hartofilakidis classification; femoral stem: p = 0.98 and p = 0.74, respectively). There were no statistically significant differences between the planned and postoperative COR (p = 0.14 horizontally and p = 0.52 vertically). The median postoperative LLD was 7 (range 0–37) mm. Conclusion Digital preoperative templating is reliable in the planning of cementless THA in patients with DDH.

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