scholarly journals Influence of Implant Acetabular Component Orientation on Hip Stability

2017 ◽  
pp. 22-31
Author(s):  
I. I. Shubnyakov ◽  
A. A. Boyarov ◽  
R. M. Tikhilov ◽  
A. O. Denisov ◽  
N. N. Efimov
Keyword(s):  
Total Hip Arthroplasty ◽  
Acetabular Component ◽  
Hip Arthroplasty ◽  
Safe Zone ◽  
Invasive Approach ◽  
Component Orientation ◽  
Group 3 ◽  
Group 2 ◽  
Component Malposition ◽  
Group 1

Introduction.Acetabular component malposition at total hip arthroplasty is a common situation that may affect the frequency of dislocation and the rate of implant friction unit wear. The purpose of the study was to determine the influence of different factors on the variability of acetabular component orientation and evaluate the role of orientation in dislocation development.Patients and methods.Total number of patients made up 1408. Out of them 695 patients were operated on at RSRITO named after R.R. Vreden using standard approaches (group 1), 184 - using low invasive approach (group 2) and 55 patients were admitted with implant head dislocation (group 4). At City St. Petersburg hospitals 474 patients (group 3) were operated on. Orientation of acetabular component (inclination and anteversion angles) was evaluated on digital pelvis and plain hip roentgenograms. Dispersion unifactorial analysis was used to evaluate the dependence of the precision of acetabular component positioning upon the surgeon’s experience, patient’s body mass index, type of surgical approach and the use of guide for acetabular component implantation.Results.Within the first postoperative year the rate of femoral component dislocation in group 1 made up 0.9%. Within the Lewinnek safe zone 76.6% of acetabular components were implanted with the use of a guide and 71.8% without. The rate of dislocation in group 2 made up 71.8% and 63.4% of components were implanted within the safe zone. In group 3 the intra-hospitalization dislocation developed in 1.9% of patients and satisfactory positioning relative to Lewinnek safe zone was achieved in 68.2% of cases. The risk factors for acetabular component malposition included high body mass indices, use of low invasive approach and insufficient experience of the operating surgeon. No direct influence of acetabular component orientation upon the femoral component dislocation was detected.Conclusion. Further studies directed to the more detailed analysis of additional factors that either directly or indirectly affect the implant function and to the optimization of surgical technique that would enable the reproducibility of total hip arthroplasty results are required.

scholarly journals Influence of Implant Acetabular Component Orientation on Hip Stability

2017 ◽  
Vol 24 (2) ◽  
pp. 22-31
Author(s):  
I. I Shubnyakov ◽  
A. A Boyarov ◽  
R. M Tikhilov ◽  
A. O Denisov ◽  
N. N Efimov
Keyword(s):  
Total Hip Arthroplasty ◽  
Acetabular Component ◽  
Hip Arthroplasty ◽  
Safe Zone ◽  
Invasive Approach ◽  
Component Orientation ◽  
Group 3 ◽  
Group 2 ◽  
Component Malposition ◽  
Group 1

Introduction. Acetabular component malposition at total hip arthroplasty is a common situation that may affect the frequency of dislocation and the rate of implant friction unit wear. The purpose of the study was to determine the influence of different factors on the variability of acetabular component orientation and evaluate the role of orientation in dislocation development. Patients and methods. Total number of patients made up 1408. Out of them 695 patients were operated on at RSRITO named after R.R. Vreden using standard approaches (group 1), 184 - using low invasive approach (group 2) and 55 patients were admitted with implant head dislocation (group 4). At City St. Petersburg hospitals 474 patients (group 3) were operated on. Orientation of acetabular component (inclination and anteversion angles) was evaluated on digital pelvis and plain hip roentgenograms. Dispersion unifactorial analysis was used to evaluate the dependence of the precision of acetabular component positioning upon the surgeon’s experience, patient’s body mass index, type of surgical approach and the use of guide for acetabular component implantation. Results. Within the first postoperative year the rate of femoral component dislocation in group 1 made up 0.9%. Within the Lewinnek safe zone 76.6% of acetabular components were implanted with the use of a guide and 71.8% without. The rate of dislocation in group 2 made up 71.8% and 63.4% of components were implanted within the safe zone. In group 3 the intra-hospitalization dislocation developed in 1.9% of patients and satisfactory positioning relative to Lewinnek safe zone was achieved in 68.2% of cases. The risk factors for acetabular component malposition included high body mass indices, use of low invasive approach and insufficient experience of the operating surgeon. No direct influence of acetabular component orientation upon the femoral component dislocation was detected. Conclusion. Further studies directed to the more detailed analysis of additional factors that either directly or indirectly affect the implant function and to the optimization of surgical technique that would enable the reproducibility of total hip arthroplasty results are required.

scholarly journals Prospective study comparing functional outcomes and revision rates between hip resurfacing and total hip arthroplasty: preliminary results for 2 years

2013 ◽  
Vol 5 (3) ◽  
pp. 20 ◽  
Author(s):  
Régis Pailhé ◽  
Nicolas Reina ◽  
Etienne Cavaignac ◽  
Akash Sharma ◽  
Valérie Lafontan ◽  
...  
Keyword(s):  
Total Hip Arthroplasty ◽  
Hip Arthroplasty ◽  
Functional Outcomes ◽  
Hip Resurfacing ◽  
Harris Hip Score ◽  
Preliminary Results ◽  
Total Hip ◽  
Group 2 ◽  
Group 1

There is a need of independent prospective studies about modern generation of hip resurfacing implants. The aim of this propective observational study was to compare the functional outcomes and revision rates with hip resurfacing arthroplasty and total hip arthroplasty and to present the preliminary results at 2 years. Patients included were recruited prospectively in the <em>Partial Pelvic Replacement Hip Project </em>by a single surgeon between January 2007 and January 2010. Patients were assessed with the Harris Hip Score (HHS) and Postel-Merle d’Aubigné (MDA) score and Devane Score. The end point of the study was reoperation for any cause related to the prosthesis. At a mean follow up of 38.6 months there were a total of 142 patients with hip resurfacing (group 1) [100 Durom® (Zimmer Inc., Warsaw, IN, USA) and 42 Birmingham Hip Resurfacing® (Smith &amp; Nephew, Memphis, TN, USA)] and 278 patients with total hip arthroplasty (group 2). The results showed significantly greater gain of HHS, MDA and Devane score with hip resurfacing procedures. However, considering all the complications, the rate was significantly higher in group 16.4% <em>vs</em> 1.79% in group 2 (P&lt;0.0001). In group 1 we observed 6 complications only concerned males with Durom® implants. The follow up of this cohort is still on going and may deliver more information on the evolution of these results in time.

scholarly journals Comparative Outcomes Assessment: Hip Hemiarthroplasty as an Alternative to THA in Patients with Surgically Pristine Acetabulum—Is There Still a Role?

2013 ◽  
Vol 2013 ◽  
pp. 1-6
Author(s):  
Thomas B. Pace ◽  
Brad Prather ◽  
Brian Burnikel ◽  
Brayton Shirley ◽  
Stephanie Tanner ◽  
...  
Keyword(s):  
Overall Survival ◽  
Survival Rate ◽  
Total Hip Arthroplasty ◽  
Hip Arthroplasty ◽  
Groin Pain ◽  
Long Term Results ◽  
Overall Survival Rate ◽  
Total Hip ◽  
Group 2 ◽  
Group 1

This is a retrospective review of 243 hip arthroplasties treated with either hemiarthroplasty (61 surgeries-Group 1) or total hip arthroplasty (182 surgeries-Group 2). The mid- to long-term results of relatively similar, predominately young patient cohorts were assessed annually via radiographs and the Harris Hip Scores for pain and clinical function. Groin pain persisted in 16.4% of Group 1 and 5.5% of Group 2 (). Thigh pain persisted in 11.5% of Group 1 and 2.2% of Group 2 (). Complications in Group 1 were 4/61 including 2 revisions with an overall survival rate of 96.7% versus Group 2 complication rate of 29/182 with 15 revisions and an overall survival rate of 91.8%. There were no cases of acetabular protrusio in Group 1, but 2 cases (1%) in Group 2 had cup loosening or osteolysis. Two cases were revised in Group 1 (3.2%). Both were undersized femoral stems. The fifteen revisions (8.2%) in Group 2 included loose stem (1), instability (8), infections (3), cup loosening (2), and accelerated polyethylene wear (1). Hemiarthroplasty has a higher incidence of thigh and groin pain but fewer complications compared with total hip arthroplasty.

Accurate Acetabular Component Orientation After Total Hip Arthroplasty Using an Acetabular Alignment Guide

2010 ◽  
Vol 25 (1) ◽  
pp. 81-86 ◽  
Author(s):  
Toshiya Kanoh ◽  
Yukiharu Hasegawa ◽  
Tetsuo Masui ◽  
Jin Yamaguchi ◽  
Kiyoharu Kawabe ◽  
...  
Keyword(s):  
Total Hip Arthroplasty ◽  
Acetabular Component ◽  
Hip Arthroplasty ◽  
Total Hip ◽  
Component Orientation ◽  
Alignment Guide

scholarly journals ACETABULAR COMPONENT ORIENTATION IN TOTAL HIP ARTHROPLASTY: THE ROLE OF ACETABULAR TRANSVERSE LIGAMENT

2016 ◽  
Vol 24 (5) ◽  
pp. 267-269 ◽  
Author(s):  
MOHAMMED EL IDRISSI ◽  
ABDELHALIM ELIBRAHIMI ◽  
MOHAMMED SHIMI ◽  
ABDELMAJID ELMRINI
Keyword(s):  
Total Hip Arthroplasty ◽  
Acetabular Component ◽  
Hip Arthroplasty ◽  
Transverse Ligament ◽  
Total Hip ◽  
Component Orientation

What is the Fate of Total Hip Arthroplasty (THA) Acetabular Component Orientation When Evaluated in the Standing Position?

2015 ◽  
Vol 30 (9) ◽  
pp. 1555-1560 ◽  
Author(s):  
John V. Tiberi ◽  
Valentin Antoci ◽  
Henrik Malchau ◽  
Harry E. Rubash ◽  
Andrew A. Freiberg ◽  
...  
Keyword(s):  
Total Hip Arthroplasty ◽  
Acetabular Component ◽  
Hip Arthroplasty ◽  
Standing Position ◽  
Total Hip ◽  
Component Orientation

Correct Assessment of Acetabular Component Orientation in Total Hip Arthroplasty From Plane Radiographs

2018 ◽  
Vol 33 (8) ◽  
pp. 2652-2659.e3 ◽  
Author(s):  
Diana Widmer ◽  
Kilian Reising ◽  
Elmar Kotter ◽  
Peter Helwig
Keyword(s):  
Total Hip Arthroplasty ◽  
Acetabular Component ◽  
Hip Arthroplasty ◽  
Total Hip ◽  
Component Orientation

Acetabular Component Orientation in Total Hip Arthroplasty: The Impact of Obesity

2014 ◽  
Vol 24 (3) ◽  
pp. 263-269 ◽  
Author(s):  
Benjamin A. McArthur ◽  
Ettore Vulcano ◽  
Michael Cross ◽  
Joseph Nguyen ◽  
Alejandro G. Della Valle ◽  
...  
Keyword(s):  
Total Hip Arthroplasty ◽  
Acetabular Component ◽  
Hip Arthroplasty ◽  
Total Hip ◽  
Component Orientation ◽  
The Impact

scholarly journals The effect of gluteus maximus tenotomy in primary total hip arthroplasty with posterior approach: Kinematic analysis of hip extensor strength

2021 ◽  
Vol 29 (1) ◽  
pp. 230949902110033
Author(s):  
Yunus Imren ◽  
Bulent Karslioglu ◽  
Suleyman Semih Dedeoglu ◽  
Haluk Cabuk ◽  
Sevgi Atar ◽  
...  
Keyword(s):  
Body Mass Index ◽  
Sciatic Nerve ◽  
Total Hip Arthroplasty ◽  
Body Mass ◽  
Hip Arthroplasty ◽  
Posterior Approach ◽  
Gluteus Maximus ◽  
Harris Hip Score ◽  
Group 2 ◽  
Group 1

Background: The posterior approach (PA) is the most commonly used surgical approach for total hip arthroplasty (THA), but the proximity of the sciatic nerve may increase the likelihood of sciatic nerve injury (SNI). Gluteus maximus tenotomy can be performed to prevent SNI because tenotomy increases the distance between the femoral neck and sciatic nerve and prevents compression of the sciatic nerve by the gluteus maximus tendon (GMT) during hip movements. We aimed to kinematically compare the postoperative hip extensor forces of patients who have and have not undergone gluteus maximus tenotomy to determine whether there is a difference in hip extensor strength. Methods: Seventy-two patients who underwent gluteus maximus tenotomy during THA were included in the group 1, and 86 patients who did not undergo tenotomy were included in group 2. The Harris hip score, body mass index and hip extensor forces were measured both preoperatively, and 6 months after surgery with an isokinetic dynamometer and compared. Results: The mean age was 64.6 ± 2.3 years in group 1 and 63.8 ± 2.1 in group 2. Mean body mass index was 25.7 ± 1.1 in group 1, and 25.5 ± 1.3 in group 2. Baseline Harris hip score (HHS) was 42.36 ± 12 in group 1 and 44.07 ± 9.4 in group 2 (p = 0.31), whereas it was 89.1 ± 7.8 and 88.4 ± 8.1 at 6 months after surgery, respectively. Baseline hip extensor force (HEF) was 2 ± 0.4 Nm/kg in group 1, and 2.1 ± 0.7 Nm/kg in group 2 (p = 0.28), while it was 2.4 ± 0.6 Nm/kg, and 2.5 ± 0.5 Nm/kg, respectively at 6 month follow-up (p = 0.87). Both groups had significantly improved HHS and HEF when comparing baseline and postoperative measurements (p < 0.0001). No cases of sciatic nerve palsy were noted in group 1, whereas there were two (2.32%) cases in group 2, postoperatively. Conclusion: The release of the GMT during primary hip arthroplasty performed with the PA did not lead to significant decrease in hip extension forces. Hip extensor strength improves after THA regardless of tenotomy. Gluteus maximus tenotomy with repair does not reduce muscle strength and may offer better visualization.

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