scholarly journals Analysis of biomechanical gait parameters in patients after total hip replacement operated via anterolateral approach depending on size of the femoral head implant: retrospective matched-cohort study

2021 ◽  
Author(s):  
Artur Stolarczyk ◽  
Magda Stolarczyk ◽  
Łukasz Oleksy ◽  
Grzegorz J. Maciąg ◽  
Piotr Stępiński ◽  
...  
Keyword(s):  
Femoral Head ◽  
Total Hip Replacement ◽  
Hip Replacement ◽  
Gait Pattern ◽  
Head Size ◽  
Anterolateral Approach ◽  
Double Support ◽  
Total Hip ◽  
Gait Parameters ◽  
Patient Reported

Abstract Introduction Total hip replacement (THR) is considered one of the most effective medical procedures in treatment of osteoarthritis. Since its introduction, there has been a worldwide debate over proper implant selection in terms of size, bearing type and shape. Following study was designed to assess the importance of femoral head size in long-term follow-up. Materials and methods A cohort of 30 patients with primary end stage osteoarthritis who underwent total hip replacement was analysed retrospectively. A homogenous group was chosen with no major differences in BMI. Patients’ gait parameters were measured in a biomechanics laboratory using the 3D BTS Smart system. WOMAC and VAS questionnaires were used to assess patient reported outcome. Results The subgroup with larger implant head size had several outcomes significantly superior to the subgroup with standard head size and non-inferior to healthy hips. Following variables were measured during this study: time of support phase, time of swing phase, double support time, walking hip extension angle. Conclusions Use of larger sized femoral heads during THR gives better results in terms of gait pattern. Since restoring the gait pattern is one of the aspects of rehabilitation and returning to daily activities it seems to be an important observation.

Influence of femoral head size on impingement, dislocation and stress distribution in total hip replacement

2007 ◽  
Vol 29 (4) ◽  
pp. 465-471 ◽  
Author(s):  
Daniel Kluess ◽  
Heiner Martin ◽  
Wolfram Mittelmeier ◽  
Klaus-Peter Schmitz ◽  
Rainer Bader
Keyword(s):  
Femoral Head ◽  
Stress Distribution ◽  
Total Hip Replacement ◽  
Hip Replacement ◽  
Head Size ◽  
Femoral Head Size ◽  
Total Hip

Lower rates of dislocation with increased femoral head size after primary total hip replacement

2011 ◽  
Vol 93-B (7) ◽  
pp. 876-880 ◽  
Author(s):  
S. S. Jameson ◽  
D. Lees ◽  
P. James ◽  
I. Serrano-Pedraza ◽  
P. F. Partington ◽  
...  
Keyword(s):  
Femoral Head ◽  
Total Hip Replacement ◽  
Hip Replacement ◽  
Head Size ◽  
Femoral Head Size ◽  
Total Hip

Total Hip Replacement after Failed Femoral Head and Neck Excision in Two Dogs and Two Cats

2012 ◽  
Vol 41 (1) ◽  
pp. 136-142 ◽  
Author(s):  
Noel Fitzpatrick ◽  
Laura Pratola ◽  
Russell Yeadon ◽  
Christos Nikolaou ◽  
Michael Hamilton ◽  
...  
Keyword(s):  
Femoral Head ◽  
Head And Neck ◽  
Total Hip Replacement ◽  
Hip Replacement ◽  
Total Hip

Patient-Reported Outcome following Metal-On-Metal Resurfacing of the Hip and Total Hip Replacement

2009 ◽  
Vol 19 (3) ◽  
pp. 245-250 ◽  
Author(s):  
David P. Hall ◽  
Del Srikantharajah ◽  
Raimond E. Anakwe ◽  
Paul Gaston ◽  
Colin R. Howie
Keyword(s):  
Total Hip Replacement ◽  
Hip Replacement ◽  
Short Form ◽  
Length Of Hospital Stay ◽  
Multivariate Regression Analysis ◽  
Hip Resurfacing ◽  
Patient Reported Outcome ◽  
Additional Patient ◽  
Total Hip ◽  
Patient Reported

Patient-reported outcome and satisfaction scores have become increasingly important in evaluating successful surgery. This case-matched control study compared patient-reported outcome and satisfaction data following hip resurfacing and total hip arthroplasty. Thirty-three consecutive patients selected for hip resurfacing were compared with 99 patients undergoing cemented total hip replacement (THR), matched for age, sex and pathology. Participants completed a Short-Form 12 Health Survey (SF-12) and Oxford Hip Score questionnaire preoperatively and 6 months post operatively with an additional patient satisfaction questionnaire. There was no difference in length of hospital stay. While both groups reported improved outcome scores, multivariate regression analysis did not demonstrate any significant benefit for one group over the other. Both groups reported high levels of satisfaction, which tended to be better in patients undergoing hip resurfacing.

scholarly journals Gait Analysis after Unilateral Total Hip Replacement Surgery

2018 ◽  
Vol 21 (4) ◽  
pp. 458-466
Author(s):  
Sadiq J. Hamandi ◽  
Marwa Azzawi ◽  
Waleed Abdulwahed
Keyword(s):  
Pain Relief ◽  
Gait Analysis ◽  
Total Hip Replacement ◽  
Hip Replacement ◽  
Reaction Force ◽  
Harris Hip Score ◽  
Gait Dynamics ◽  
Total Hip ◽  
Normal Ranges ◽  
Gait Parameters

Total hip replacement (THR) is an elective surgical procedure with the primary indication being pain relief. The aim of this study is to analyze gait dynamics for patients after they underwent a unilateral THR surgery and compare it with normal parameters. To investigate the gait dynamics a gait analysis was performed on five patients after they underwent a unilateral THR surgery; only two of them were examined before the surgery. The gait analysis was performed using a digital video camera with two force plates. Kinematics data were obtained from 2D trajectories of seven passive markers using SkillSpector software. MATLAB software has been used for inverse dynamics computation. General gait parameters, Harris Hip Score, joints’ angles, forces, moments and powers were obtained during gait cycle. It was found that the average of improvement in Harris Hip Score (for four patients who were examined 1.5, 2.5, 3 and 9 months after surgery) is 61.8 points, which is an indication of pain relief. In the other hand, the general gait parameters were found slightly lower than normal after THR surgery. The average hip reaction force was found to be 2.988 N/BW, which is within normal range. Also, the average of maximum hip extension and maximum hip flexion angles were found to be 25.69 and -13.524 degree respectively, which both are within normal ranges. Furthermore, hip, knee and ankle moments and powers results showed some abnormality. Therefore as a conclusion, patient satisfaction and functional improvement are not related to general gait parameter. And it is not unusual that gait mechanics improvement would not reach normal after months of recovery. Also, the results of gait dynamics which are from the engineer’s perspective are compatible with Harris Hip Score, which is from the physician’s perspective, in quantifying surgical results and subsequent recovery progress.

scholarly journals Malunion of the Acetabulum Treated by Intra-articular Buttress

2020 ◽  
Vol 2020 ◽  
pp. 1-3
Author(s):  
D. Saragaglia ◽  
J. Gaillot
Keyword(s):  
Femoral Head ◽  
Total Hip Replacement ◽  
Clinical Result ◽  
Hip Replacement ◽  
Surgical Indications ◽  
Total Hip ◽  
Original Technique ◽  
Head Fragment

Acetabulum malunions are extremely difficult to treat, and for many years, surgical indications have been dominated by total hip replacement. We treated a protruding acetabular malunion, 20 years ago, using an intra-articular buttress, by means of an allograft corresponding to a femoral head fragment which had been cryopreserved. The radiological and clinical result with this extended follow-up is quite remarkable, which has motivated us to present this original technique.

Acoustic Vibration and Mechanical In Vivo Analysis of the Hip Joint After a Total Hip Arthroplasty

2007 ◽  
Author(s):  
D. A. Glaser ◽  
R. D. Komistek ◽  
H. E. Cates ◽  
M. Mahfouz
Keyword(s):  
Femoral Head ◽  
Total Hip Replacement ◽  
Hip Joint ◽  
Hip Replacement ◽  
Acoustic Vibration ◽  
Valuable Insight ◽  
Acetabular Cup ◽  
Total Hip ◽  
Resonance Frequencies

The major complications following total hip replacement (THA) are implant loosening, dislocation, instability, fracture and infection. It is hypothesized that vibration, in the range of the resonance frequencies, may cause pain, bone degeneration and fracture. A further understanding of the physical response resulting from impact during femoral head sliding may lead to valuable insight pertaining to THA failure. Therefore, the first objective of this present study was to determine if frequencies propagating through the hip joint near resonant frequencies may lead to wear or loosening of the components. Recently, studies found that femoral head sliding, often referred to as hip separation, between the acetabulum cup and the femoral head does occur, which may also play a role in complications observed with THA today, but a the effects of hip separation and the causes of its occurrence has not been studied as jet. Therefore, the second objective of this study was to determine if a sound sensor, externally attached, could be used to correlate impact loading sounds from femoral head sliding in the acetabular cup. Additional objective of this study was to develop a mathematical model that better simulates the in vivo loading conditions of total hip replacement patients using in vivo fluoroscopic and ground reaction data as input.

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