Heterotopic ossification after total hip arthroplasty: radiological comparison between a direct anterior approach without an orthopaedic table and a posterior approach

2020 ◽  
pp. 112070002097079
Author(s):  
Naïm Zran ◽  
Etienne Joseph ◽  
Gabriel Callamand ◽  
Xavier Ohl ◽  
Renaud Siboni

Introduction: Heterotopic ossification (HO) occurs in almost ⅓ of total hip arthroplasties (THAs). A direct anterior approach (DAA) with an orthopaedic table is less likely to cause HO than a posterior approach. Without an orthopaedic table, the exposure of the femur requires additional soft tissue release. Soft tissue trauma leads to the production of HO inductors. Our study evaluated the incidence of HO 6 months after THA and compared the results between DAAs without an orthopaedic table and posterior approaches. Methods: Retrospectively, 164 consecutive, primary THAs were included: 76 through a posterior approach and 88 through a DAA. The main objective was to measure the presence of HO on pelvis radiography 6 months after surgery. Results: The incidence of HO was significantly higher in the DAA group than in the posterior approach group (47.7% vs. 27.6%, respectively; p  < 0.01). The overall incidence of HO was 38.4%. No significant difference was found between the 2 approaches regarding the severity of HO. No significant risk factor for HO was identified other than the surgical approach. Discussion: In our study, the incidence of HO after THA in patients undergoing DAA without an orthopaedic table was higher than in patients undergoing a posterior approach after 6 months of follow-up. This result is closely related to the surgical trauma. It suggests that the minimally invasive feature of a surgical approach cannot be dissociated from the overall conditions in which it is performed.

2015 ◽  
Vol 9 (1) ◽  
pp. 157-162 ◽  
Author(s):  
Sachiyuki Tsukada ◽  
Motohiro Wakui

Objective: The aim of the study was to compare the dislocation rate between total hip arthroplasty (THA) via direct anterior approach (DAA) and via posterior approach (PA). Methods: We compared a consecutive series of 139 THAs via DAA with 177 THAs via PA. All study patients received ceramic-on-ceramic bearing surfaces and similar uncemented prostheses. Dislocation-free survival after THA was estimated using the Kaplan–Meier survival method and compared between groups using the log-rank test. Results: In the DAA group, none of 139 hips experienced dislocations in five-year-average follow-up. In the PA group, seven hips experienced dislocations among 177 hips (4 %). The dislocation was significantly less in the DAA group compared to the PA group (p = 0.033). Conclusion: The dislocation rate of THA via DAA was significantly less than that of THA via PA.


2019 ◽  
Vol 03 (04) ◽  
pp. 186-190
Author(s):  
Eric M. Cohen ◽  
Jacob M. Babu ◽  
Scott Ritterman ◽  
John Tuttle ◽  
Daniel Eisenson ◽  
...  

AbstractPrevious studies have demonstrated varying rates of heterotopic ossification (HO) after total hip arthroplasty (THA) depending on which anatomical approach is utilized. The direct anterior approach (DAA) is considered to be a muscle-sparing approach to the hip, which may lead to decreased rates of HO formation. This study evaluated the incidence of HO formation after DAA THA. The current work is a retrospective review of patients who underwent DAA THA. Six-month postoperative radiographs were evaluated and HO grade was classified using the Brooker classification system. Baseline characteristic differences between the Brooker classification groups were analyzed, specifically looking at: age, sex, type of deep venous thrombosis prophylaxis utilized, and preoperative Bombelli arthritis type. The overall incidence of HO in this DAA group was 179/485 patients (36.9%). There were 14 patients (2.9%) with Brooker Type 3 HO and 1 patient (0.21%) with Brooker Type 4 HO. No surgical excision of HO was performed. Patients were significantly more likely to develop HO if they had Bombelli hypertrophic arthritis (p < 0.00003). Preoperative radiographic imaging suggesting Bombelli hypertrophic arthritis is predictive of HO formation, warranting consideration for HO prophylactic treatment. The radiographic incidence of HO in DAA THA was 36.9%, which is within the previously reported range of HO seen for lateral and posterior approaches to the hip. HO after total hip arthroplasty is likely due to soft tissue handling, hemostasis, and patient factors, rather than type of surgical approach.


SICOT-J ◽  
2020 ◽  
Vol 6 ◽  
pp. 15 ◽  
Author(s):  
Constant Foissey ◽  
Mathieu Fauvernier ◽  
Cam Fary ◽  
Elvire Servien ◽  
Sébastien Lustig ◽  
...  

Introduction: Proficiency in the direct anterior approach (DAA) as with many surgical techniques is considered to be challenging. Added to this is the controversy of the benefits of DAA compared to other total hip arthroplasty (THA) approaches. Our study aims to assess the influence of experience on learning curve and clinical results when transitioning from THA via posterior approach in a lateral position to DAA in a supine position. Methods: A consecutive retrospective series of 525 total hip arthroplasty of one senior and six junior surgeons was retrospectively analysed from May 2013 to December 2017. Clinical results were analysed and compared between the two groups and represented as a learning curve. Mean follow up was 36.2 months ± 11.8. Results: This study found a significant difference in complications between the senior and junior surgeons for operating time, infection rate, and lateral femoral cutaneous nerve (LFCN) neuropraxia. A trainee’s learning curve was an average of 10 DAA procedures before matching the senior surgeon. Of note, the early complications correlated with intraoperative fractures increased with experience in both groups. Operating time for the senior equalised after 70 cases. Dislocation rate and limb length discrepancy were excellent and did not show a learning curve between the two groups. Conclusion: DAA is a safe approach to implant a THA. There is a learning curve and initial supervision is recommended for both seniors and trainees. Level of evidence: Retrospective, consecutive case series; level IV.


2021 ◽  
Vol 64 (2) ◽  
pp. E205-E210
Author(s):  
Sebastian Heaven ◽  
Maxwell Perelgut ◽  
Edward Vasarhelyi ◽  
James Howard ◽  
Matthew Teeter ◽  
...  

Background: Total hip arthroplasty (THA) via the direct anterior approach has increased in popularity in the last decade, with research supporting enhanced early recovery; however, some investigators have reported increased early revision rates in direct anterior THA. We examined outcomes from a single institution’s experience with a fully hydroxyapatite-coated collared femoral stem implanted via the anterior or the lateral approach. Methods: Patients who had received fully hydroxyapatite-coated collared femoral stems as part of THA surgery performed by 1 of 3 surgeons between January 2012 and September 2017 were identified from our institutional database. We examined revision rates for the 2 approaches and compared them between the 2 groups. We also analyzed outcomes on plain film radiographs obtained immediately postoperatively and at 1 and 2 years. Results: A total of 695 patients received a fully hydroxyapatite-coated collared stem during the study period. Total hip arthroplasty was performed via the direct anterior approach in 281/778 hips (36.1%) and via the direct lateral approach in 497 (63.9%). Nineteen patients (2.5%) underwent subsequent revision surgery; there was no statistically significant difference in the revision rate between the anterior and lateral approaches (2.5% v. 2.4%, p = 0.95). The mean subsidence of the stem at 1 year was 1.68 mm (standard deviation 11.7 mm). No statistically significant differences were observed between the cohorts for any of the radiographic measurements at either follow-up time. Conclusion: We found no significant difference in revision rates between the direct anterior and direct lateral approach. Stem subsidence levels were in keeping with expected values, and no major changes in stem position occurred during the first postoperative year. Surgical approach did not appear to substantially affect biomechanical stem behaviour.


2019 ◽  
pp. 112070001988193 ◽  
Author(s):  
David R Maldonado ◽  
Cynthia Kyin ◽  
Rafael Walker-Santiago ◽  
Philip J Rosinsky ◽  
Jacob Shapira ◽  
...  

Introduction: The direct anterior approach (DAA) has gained popularity in recent years for total hip arthroplasty (THA). Several authors reported significantly better early outcomes when compared to the posterior approach (PA). Nevertheless, controversy exists regarding longer-term benefits of the DAA. Methods: Data was prospectively collected and retrospectively reviewed for primary THAs conducted between July 2008 and July 2016. Patients who underwent DAA and PA with minimum 2-year follow-up for Harris Hip Score (HHS), Forgotten Joint Score-12 (FJS-12), Veteran RAND 12 Mental (VR-12 Mental), Veteran RAND 12 Physical (VR-12 Physical), 12-Item Short Form Survey Mental (SF-12 Mental), 12-Item Short Form Survey Physical (SF-12 Physical), visual analogue scale, and patient satisfaction were included. Propensity score matching was performed on the DAA and PA cohorts (1:1) based on the following variables: age, sex, body mass index, and laterality. Results: 205 DAA hips were satisfactorily matched to 205 PA hips. The DAA group had higher scores at final follow-up for VR-12 Mental ( p = 0.0145), VR-12 Physical ( p = 0.0236), SF-12 Mental ( p = 0.0393), and SF-12 Physical ( p = 0.0391). The DAA and PA groups had comparable HHS ( p = 0.0737) and FJS-12 ( p = 0.2900). Conclusions: Although the DAA and PA groups had different follow-up periods, both the DAA and PA groups reported favourable outcomes at minimum 2-year follow-up. While both groups achieved comparable scores for the majority of PROs including VAS and patient satisfaction, the DAA group achieved superior quality of life outcomes when compared with a propensity score matched group of PA surgeries.


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