scholarly journals Two Year Average Follow Up of Supercapsular Percutaneously Assisted Total Hip Arthroplasty; Zero Dislocations

2020 ◽  
Author(s):  
Andrew Kay ◽  
DEREK KLAVAS ◽  
Varan Haghshenas ◽  
MIMI PHAN ◽  
DAN TRAN LE
Keyword(s):  
Total Hip Arthroplasty ◽  
Hip Arthroplasty ◽  
Late Complications ◽  
Senior Author ◽  
Dislocation Rate ◽  
Blood Transfusions ◽  
Leg Length ◽  
Invasive Approach ◽  
Total Hip

Abstract BACKGROUNDDislocation after primary total hip arthroplasty (THA) has an incidence of 2-3. Approximately 77% of dislocations occur within the first year after surgery. The SuperPATH technique is a minimally invasive approach for THA that preserves soft tissue attachments. The purpose of this study is to describe the dislocation rate at one year after SuperPATH primary THA. METHODSAll elective primary THAs performed by the senior author using the SuperPATH approach. Exclusion criteria were acute femoral neck fracture, revision surgery, or malignancy. There were 214 of 279 eligible patients available for telephone interviews (76.7%). Medical records were reviewed for secondary outcomes including early and late complications, cup positioning, distance ambulated on postoperative day one, discharge destination, and blood transfusions. RESULTSMean age at surgery was 64 ± 10.8 years and mean time to telephone follow up was 773 ± 269.7 days. There were 104 female and 110 male patients. There were zero dislocations reported. Blood transfusions were performed in 3.7% of patients, and 75.7% were discharged to home at an average of 2.3 ± 1.0 days. Cup position averaged 43.6 ± 5.2° abduction and 20.9 ± 6.2° anteversion, with an average leg length discrepancy of 3.6 ± 3.32mm. Complications included three intraoperative calcar fractures, one periprosthetic femur fracture, one early femoral revision, three superficial infections, and one instance of wound necrosis.CONCLUSIONSuperPATH approach is safe for use in primary THA resulting in a low dislocation rate.

scholarly journals Two year follow up of supercapsular percutaneously assisted total hip arthroplasty

2021 ◽  
Vol 22 (1) ◽  
Author(s):  
Andrew Kay ◽  
Derek Klavas ◽  
Varan Haghshenas ◽  
Mimi Phan ◽  
Daniel Le
Keyword(s):  
Total Hip Arthroplasty ◽  
Hip Arthroplasty ◽  
Late Complications ◽  
Senior Author ◽  
Dislocation Rate ◽  
Blood Transfusions ◽  
Leg Length ◽  
Invasive Approach ◽  
Total Hip

Abstract Background Dislocation after primary total hip arthroplasty (THA) has an incidence of 2–3%. Approximately 77% of dislocations occur within the first year after surgery. The SuperPATH technique is a minimally invasive approach for THA that preserves soft tissue attachments. The purpose of this study is to describe the dislocation rate at 1 year after SuperPATH primary THA. Methods All elective primary THAs performed by the senior author using the SuperPATH approach. Exclusion criteria were acute femoral neck fracture, revision surgery, or malignancy. There were 214 of 279 eligible patients available for telephone interviews (76.7%). Medical records were reviewed for secondary outcomes including early and late complications, cup positioning, distance ambulated on postoperative day one, discharge destination, and blood transfusions. Results Mean age at surgery was 64 ± 10.8 years and mean time to telephone follow up was 773 ± 269.7 days. There were 104 female and 110 male patients. There were zero dislocations reported. Blood transfusions were performed in 3.7% of patients, and 75.7% were discharged to home at an average of 2.3 ± 1.0 days. Cup position averaged 43.6 ± 5.2° abduction and 20.9 ± 6.2° anteversion, with an average leg length discrepancy of 3.6 ± 3.32 mm. Complications included three intraoperative calcar fractures, one periprosthetic femur fracture, one early femoral revision, three superficial infections, and one instance of wound necrosis. Conclusion SuperPATH approach is safe for use in primary THA resulting in a low dislocation rate.

scholarly journals Lower Dislocation Rate Following Total Hip Arthroplasty via Direct Anterior Approach than via Posterior Approach: Five-Year-Average Follow-Up Results

2015 ◽  
Vol 9 (1) ◽  
pp. 157-162 ◽  
Author(s):  
Sachiyuki Tsukada ◽  
Motohiro Wakui
Keyword(s):  
Total Hip Arthroplasty ◽  
Hip Arthroplasty ◽  
Anterior Approach ◽  
Posterior Approach ◽  
Direct Anterior Approach ◽  
Dislocation Rate ◽  
Rank Test ◽  
Consecutive Series ◽  
Total Hip

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.

3rd generation ceramic-on-ceramic cementless total hip arthroplasty: a minimum 10-year follow-up study

2018 ◽  
Vol 28 (2) ◽  
pp. 133-138 ◽  
Author(s):  
Yeong J. Lau ◽  
Shashank Sarmah ◽  
Johan D. Witt
Keyword(s):  
Total Hip Arthroplasty ◽  
Hip Arthroplasty ◽  
Senior Author ◽  
Long Term Results ◽  
Abduction Angle ◽  
Wear Properties ◽  
Total Hip ◽  
Ceramic On Ceramic

Introduction: 3rd generation ceramic bearings were introduced in total hip arthroplasty (THA) with the potential to have better mechanical strength and wear properties than their predecessors. At present, there are few studies looking at the long-term results of this latest generation of ceramic bearings. The purpose of our study was to investigate the long-term clinical and radiographic results of 3rd generation ceramic-on-ceramic THA and the incidence of ceramic specific complications such as squeaking and bearing surface fracture. Methods: The database of the senior author (J.D.W.) was reviewed. A total of 126 hip replacements performed in 108 patients (average age 39.6 years) with an average follow-up of 12.1 years (10-16 years) was identified. Clinical notes and plain radiographs were reviewed. To measure function, patients were contacted and an Oxford Hip Questionnaire was completed. Patients were also directly questioned about the presence of squeaking or any other sounds from the hip. Radiographs were evaluated for signs of wear, osteolysis, loosening and heterotopic ossification. The abduction angle of the acetabular component was measured. Results: The average Oxford Hip Score was 39.8 out of 48. Survivorship at 10 years was 94.6% (95% CI) with revision for any cause as the endpoint. There was 1 femoral head fracture, no osteolysis, no squeaking and no detectable wear. Conclusions: The good clinical and radiographic results for this series of patients are similar to other recent long-term studies looking at 3rd generation ceramic-on-ceramic THA. The results compare favourably with other bearing surfaces. The lack of osteolysis associated with this articulation is encouraging and may also make it a good choice for younger patients requiring total hip replacement.

The migration pattern and initial stability of the Optimys short stem in total hip arthroplasty: a prospective 2-year follow-up study of 33 patients with RSA

2020 ◽  
pp. 112070002090184 ◽  
Author(s):  
Sheryl de Waard ◽  
Inger N Sierevelt ◽  
Renee Jonker ◽  
Daniel Hoornenborg ◽  
Harm M van der Vis ◽  
...  
Keyword(s):  
Total Hip Arthroplasty ◽  
Hip Arthroplasty ◽  
Deep Infection ◽  
Migration Pattern ◽  
Short Stem ◽  
Leg Length ◽  
Total Hip ◽  
Initial Stability ◽  
Short Stems

Background and purpose: The consensus that bone stock preservation and optimal restoration of offset and leg length is important in total hip arthroplasty is now widespread, especially for young and active patients. Short stems seem promising in this aspect, though implant stability is still of concern. This study looked at the migration pattern of the Optimys short stem through RSA analysis. Patients and methods: 40 patients were included. RSA images were made directly postoperatively (within 5 days), at 6 weeks and at 3, 6, 12 and 24 months. Double examinations were made for precision measurement. HOOS and pain scores were obtained preoperatively and at 2 years. 4 patients were excluded due to protocol violation and 1 patient was excluded for RSA analysis with a CN number >110. 2 patients were lost to follow-up after 3 and 6 months ( n  = 1 lost, n  = 1 deep infection, respectively). Results: Mean age was 60 years with a mean BMI of 27. RSA analysis of 34 patients showed a significant initial median proximodistal translation (subsidence) of 0.21 mm (IQR 0.64–0.06) and anteversion-retroversion rotation of 0.59° (IQR 0.01–1.34) at 6 weeks, after which the stem stabilises and showed no further significant movement. Median migration in other directions was small. 4 patients had an initial subsidence of >2 mm, all showed secondary stabilisation. HOOS outcomes were satisfactory, with the domain symptoms and pain showing a median score of 95/100 at 2 years. Conclusions: After initial migration the Optimys achieves secondary stabilisation, suggesting low risk on long-term aseptic loosening. Clinical trials registration: NL47055.048.13.

scholarly journals Dislocation Rate at Short-term Follow-up after Revision Total Hip Arthroplasty with a Dual Mobility Component

2016 ◽  
Vol 6 (1) ◽  
pp. 17-20 ◽  
Author(s):  
Samuel S Wellman ◽  
David E Attarian ◽  
Taylor R McClellan ◽  
Roberto D Calderon ◽  
Paul F Lachiewicz
Keyword(s):  
Total Hip Arthroplasty ◽  
Acetabular Component ◽  
Hip Arthroplasty ◽  
Dislocation Rate ◽  
Revision Total Hip Arthroplasty ◽  
Short Term ◽  
Dual Mobility ◽  
Total Hip ◽  
Increased Risk

ABSTRACT Patients undergoing a revision total hip arthroplasty (THA) are at increased risk for dislocation. The literature suggests dual-mobility components may decrease the frequency of dislocation. We conducted a retrospective study of one type of dual mobility acetabular component implanted in 82 revision THA cases that were considered at increased risk for dislocation. Of the 82 hips, 58 had a mean follow-up of 12 months (3–28 months). The indication for revision was instability in 18 hips (31%), adverse metal-on-metal reaction in 13 hips (22%), reimplantation for infection in 11 hips (19%), and aseptic loosening of the acetabular component in 9 hips (16%). In the course of follow-up, 6 hips developed a deep infection requiring reoperation. There were no early hip dislocations. McClellan TR, Calderon RD, Bolognesi MP, Attarian DE, Lachiewicz PF, Wellman SS. Dislocation Rate at Short-term Follow-up after Revision Total Hip Arthroplasty with a Dual Mobility Component. The Duke Orthop J 2016;6(1):17-20.

Dislocation rates following total hip arthroplasty via the direct anterior approach in a consecutive, non-selective cohort

2021 ◽  
Vol 103-B (7 Supple B) ◽  
pp. 38-45
Author(s):  
John V. Horberg ◽  
Benjamin R. Coobs ◽  
Aneel K. Jiwanlal ◽  
Christopher J. Betzle ◽  
Susan G. Capps ◽  
...  
Keyword(s):  
Risk Factors ◽  
Total Hip Arthroplasty ◽  
Hip Arthroplasty ◽  
Anterior Approach ◽  
Direct Anterior Approach ◽  
Dislocation Rate ◽  
Fixation Method ◽  
Wound Complications ◽  
Total Hip

Aims Use of the direct anterior approach (DAA) for total hip arthroplasty (THA) has increased in recent years due to proposed benefits, including a lower risk of dislocation and improved early functional recovery. This study investigates the dislocation rate in a non-selective, consecutive cohort undergoing THA via the DAA without any exclusion or bias in patient selection based on habitus, deformity, age, sex, or fixation method. Methods We retrospectively reviewed all patients undergoing THA via the DAA between 2011 and 2017 at our institution. Primary outcome was dislocation at minimum two-year follow-up. Patients were stratified by demographic details and risk factors for dislocation, and an in-depth analysis of dislocations was performed. Results A total of 2,831 hips in 2,205 patients were included. Mean age was 64.9 years (24 to 96), mean BMI was 29.2 kg/m2 (15.1 to 53.8), and 1,595 patients (56.3%) were female. There were 11 dislocations within one year (0.38%) and 13 total dislocations at terminal follow-up (0.46%). Five dislocations required revision. The dislocation rate for surgeons who had completed their learning curve was 0.15% compared to 1.14% in those who had not. The cumulative periprosthetic infection and fracture rates were 0.53% and 0.67%, respectively. Conclusion In a non-selective, consecutive cohort of patients undergoing THA via the DAA, the risk of dislocation is low, even among patients with risk factors for instability. Our data further suggest that the DAA can be safely used in all hip arthroplasty patients without an increased risk of wound complications, fracture, infection, or revision. The inclusion of seven surgeons increases the generalizability of these results. Cite this article: Bone Joint J 2021;103-B(7 Supple B):38–45.

scholarly journals Greater increase in femoral offset with use of collum femoris-preserving stem than Tri-Lock stem in primary total hip arthroplasty

2020 ◽  
Vol 48 (5) ◽  
pp. 030006052092599
Author(s):  
Mengxuan Yao ◽  
Yuchuan Wang ◽  
Congcong Wei ◽  
Yongtai Han ◽  
Huijie Li
Keyword(s):  
Total Hip Arthroplasty ◽  
Hip Arthroplasty ◽  
Harris Hip Score ◽  
Leg Length ◽  
Femoral Offset ◽  
Unaffected Side ◽  
Neck Shaft Angle ◽  
Total Hip ◽  
Stem Group

Objective This study was performed to compare the clinical outcomes and performance of the collum femoris-preserving (CFP) stem (Waldemar Link GmbH & Co., Hamburg, Germany) and the Tri-Lock stem (DePuy Orthopaedics, Warsaw, IN, USA) in terms of femoral offset (FO) and leg length reconstruction. Methods Clinical and radiographic data of patients who underwent total hip arthroplasty with either a CFP stem or Tri-Lock stem from January 2016 to March 2017 were compared (65 and 57 patients, respectively). The Harris hip score and Western Ontario and McMaster Universities Osteoarthritis Index were recorded. The FO, femoral vertical offset, and neck–shaft angle were measured at the last follow-up. The occurrence of dislocation and periprosthetic fracture during the follow-up period was recorded. Results The CFP stem induced significantly more FO than did the Tri-Lock stem on the operated side than contralateral side (3.63 ± 4.28 vs. 0.83 ± 5.46 mm). Significantly fewer patients had a >5-mm decrease in FO on the unaffected side in the CFP stem group ( n = 1) than Tri-Lock stem group ( n = 10). Conclusion Both stems similarly improved hip function and reconstructed the leg length, but the CFP stem was superior to the Tri-Lock stem in reconstructing FO.

The Delta of Correction: a novel, more reliable variable than limb-length discrepancy at predicting outcome after total hip arthroplasty

2019 ◽  
Vol 30 (5) ◽  
pp. 536-543
Author(s):  
Nicolas Reina ◽  
Jonathan Hourtal ◽  
Christopher G Salib ◽  
Gauthier Gracia ◽  
Etienne Cavaignac ◽  
...  
Keyword(s):  
Total Hip Arthroplasty ◽  
Clinical Outcomes ◽  
Hip Arthroplasty ◽  
Limb Length Discrepancy ◽  
Leg Length ◽  
Total Hip ◽  
Length Discrepancy ◽  
Eos Imaging ◽  
Functional Scores

Background: Leg-length discrepancy (LLD) is a frequent and recurring issue after total hip arthroplasty (THA). It can lead to discomfort and litigation due to the patient’s perception of this inequality. Purpose: The aim of this study was to evaluate the functional impact of postoperative LLD and length correction in patients after primary THA. We hypothesised that clinical outcomes are inversely correlated to length correction and residual discrepancy. Methods: In a prospective cohort, we included 121 patients undergoing unilateral primary THA. Patients were categorised into 3 groups based on their residual LLD using routine EOS imaging; Shorter (<-5 mm); Equal (-5 mm to +5 mm); and Longer (>+5 mm). Delta of Correction (DC) was defined as the difference between pre- and postoperative discrepancy measured on EOS imaging. Functional scores (HHS, Postel Merle d’Aubigné, and WOMAC) were measured preoperatively and at last follow-up. The average follow-up was 24 months. We evaluated the clinical and radiographic outcomes regarding the residual LLD and DC. Results: All patients had improvement in their functional scores at last follow-up. There was no difference in clinical outcomes, regardless of preoperative or residual LLD. The highest scores were found in the population with the smallest variations (DC -5 to +5 mm, HHS 96). Conversely, poorer results were found in shortened patients (DC <-5 mm), HHS 86, and lengthened patients, corrected by > 15 mm, with HHS of 83, p < 0.005. Patient perception of postoperative LLD correlated with the DC ( p = 0.004). Conclusion: The DC measurement is a more effective assessment than arthroplasty.

scholarly journals Short-term results of novel constrained total hip arthroplasty

2015 ◽  
Vol 7 (2) ◽  
Author(s):  
Thomas Pace ◽  
Stephen Finley ◽  
Rebecca Snider ◽  
Jayme Looper ◽  
Stephanie Tanner
Keyword(s):  
Total Hip Arthroplasty ◽  
Failure Rate ◽  
Hip Arthroplasty ◽  
Polyethylene Wear ◽  
Thigh Pain ◽  
Dislocation Rate ◽  
Component Failure ◽  
Total Hip ◽  
Limited Range Of Motion

Constrained acetabular components have only been recommended as a salvage option for the persistently unstable total hip arthroplasty (THA), due to limited range of motion and less than satisfactory component failure rates. This is a retrospective review of 137 patients with 154 consecutive primary constrained THAs performed between November 2003 and August 2007. We reviewed serial radiographs, postoperative complications, groin/thigh pain, and compared preoperative and postoperative Harris Hip Scores. With a mean follow-up of 6 years, there was 1.9% dislocation rate, 0% component failure rate, and 2.6% infection rate. Seven patients reported continued groin pain, and three had continued thigh pain. One patient showed radiographic evidence of 1 mm polyethylene wear. Radiographic review showed no evidence of osteolysis or stem subsidence. Harris Hip Scores improved from a mean of 68.8 (range 58-87) preoperatively to 98.9 (range 65-100) at final clinical assessment. This constrained acetabular prosthesis had a dislocation rate of less than 2%, with 0% component failure rate at a minimum of 2 years of follow-up suggesting this prosthesis may be a viable alternative for patients at risk for instability or those known to have recurrent instability.

scholarly journals Conversion total hip arthroplasty with a proximally modular, distal fixation reconstruction prosthesis following cephalomedullar nail failure

2020 ◽  
Vol 30 (1_suppl) ◽  
pp. 26-33 ◽  
Author(s):  
Daniel Godoy-Monzon ◽  
Fernando Diaz Dilernia ◽  
Francisco Piccaluga ◽  
Alberto Cid Casteulani ◽  
Luis Turus ◽  
...  
Keyword(s):  
Total Hip Arthroplasty ◽  
Hip Arthroplasty ◽  
Clinical Success ◽  
Femoral Stem ◽  
Harris Hip Score ◽  
Secondary Outcome ◽  
Consecutive Series ◽  
Leg Length ◽  
Total Hip

Background: The goals of intertrochanteric hip fracture (IHF) treatment are stable fixation, early mobilisation and function restoration. If the attempt to reduce, stabilise and fracture healing utilising a femoral cephalomedullar nail (CMN) fails, options for subsequent attempts are limited. Purpose: Evaluate the clinical and radiographic outcomes of conversion total hip arthroplasty (THA) using a modular stem following a CMN failure. Materials and methods: We retrospectively reviewed a consecutive series of patients with an IHF between 2012 and 2014 to identify CMN patients that went on to the subsequent failure and conversion to THA utilising a modular femoral stem (MFS). In all cases, MP Reconstruction Prosthesis (Waldemar Link, Hamburg, Germany) was implanted. Primary clinical outcomes were assessed using Harris Hip Score (HSS) before conversion procedure, 3 months, 6 months and recent office visit post-conversion THA thereafter. The secondary outcome was to analyse intra and postoperative complications. Serial radiographs at each follow-up interval were assessed for clinical success or to confirm adverse events. Results: 28 patients were included in the study; 17 were females. The average age was 72.7 years (SD ± 10.5); the average time from the index procedure to conversion THA was 12.6 months (SD ± 3.5). At baseline, average HHS was 42.1 (SD ± 3.6), improved to 80.7 (SD ± 5.1) at 3 months, 86.0 (SD ± 3.9) at 6-months which levelled off to 86.1 (SD ± 4.0) at final follow-up. There were 4 (14%) post-conversion complications: 2 dislocations, 1 superficial wound infection, 1 patient with symptomatic abductor deficiency. All 4 cases were conservatively treated successfully, the implants were retained, and the patients progressed without further issue. Conclusions: MFSs allow to successfully treat failed CMN and adverse variations in femoral anatomy with a device that will permit simultaneous correction of leg length, offset and version to relieve pain, restore function and create a durable prosthetic to host composite.

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