Outcome of Primary total Hip Replacement in Patients Less than 50 Years Old

1996 ◽  
Vol 6 (3) ◽  
pp. 106-111
Author(s):  
O. Masbah ◽  
S.P.F. Hughes
Keyword(s):  
Rheumatoid Arthritis ◽  
Pain Relief ◽  
Femoral Head ◽  
Total Hip Replacement ◽  
Hip Replacement ◽  
Young Patients ◽  
Total Hip ◽  
Good Pain Relief ◽  
Hip Replacements ◽  
And Function

We reviewed 33 primary total hip replacements in 24 patients younger than 50 years old. The mean age was 39.5 years and the follow-up averaged 6.1 years. There were 15 men and 9 women. Twenty-five hip replacements were cemented and 8 were uncemented. The most common hip pathology was osteonecrosis of the femoral head (36%), followed by rheumatoid arthritis (27%) and osteoarthritis (21%). Good pain relief was obtained in 70% of hips. Thigh pain developed in 2 uncemented hips and another had increasing hip pain. Function was good in 64% and 67% had good hip mobility. The best results were obtained in osteonecrosis of the femoral head, followed by osteoarthritis and rheumatoid arthritis. The commonest indication for revision was loosening of the acetabular component. Survival analysis of the 25 cemented hips showed a failure of 35% at 6 years and 9.1% at 8 years. Total hip replacement in young patients provides good pain relief and function although there is a limited time expectancy for good results.

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

Complications with the Zurich Canine Total Hip Replacement System in an Initial Series of Cases Performed by a Single Surgeon

2021 ◽  
Author(s):  
Samuel P. Franklin ◽  
Nathan A. Miller ◽  
Todd Riecks
Keyword(s):  
Total Hip Replacement ◽  
Hip Replacement ◽  
Weight Bearing ◽  
Normal Function ◽  
High Rate ◽  
Total Hip ◽  
Initial Series ◽  
Major Complications ◽  
Hip Replacements ◽  
Replacement System

Abstract Objective The aim of this study was to quantify the complications using the Zurich total hip replacement system in an initial series of cases performed by a single surgeon who had experience with other total hip replacement systems. Materials and Methods This was a retrospective study in which complications were classified as major if any treatment was needed or if the outcome was less than near-normal function. Complications that did not warrant treatment and that did not result in function that was inferior to near-normal were considered minor. Outcomes were assessed by radiographic review, physical examination, subjective gait evaluation or, in one case, by objective gait analysis. Bilateral total hip replacements were considered separate procedures. Results The first 21 procedures in 19 dogs performed by a single surgeon were included. The mean time to follow-up was 48 weeks (range: 8–120 weeks; standard deviation: 36 weeks). Two cases (of 21) experienced major complications including one dog with excess internal femoral rotation during weight bearing and one dog having luxation. One case (of 21) had a minor complication; femoral fracture in the presence of an intact bone plate that maintained alignment and healed without treatment. Clinical Significance A high rate of successful outcomes with few major complications can be obtained in the initial cases treated using the Zurich total hip replacement system for surgeons with prior experience with other total hip replacement systems.

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.

The complex primary total hip replacement

2011 ◽  
Author(s):  
James Donaldson ◽  
Richard Carrington
Keyword(s):  
Total Hip Replacement ◽  
Hip Replacement ◽  
Walking Ability ◽  
Careful Evaluation ◽  
Screening Programs ◽  
Total Hip ◽  
Number Of Patients ◽  
Hip Replacements

♦ Hip Dysplasia• Despite screening programs, a large number of patients are affected by dysplastic hips and their sequelae• An understanding of anatomical abnormalities is crucial• Appropriate techniques and implants make arthroplasty feasible• Complications are significantly higher than standard primary hip replacements♦ Protrusio Acetabuli• Technical difficulties include inadequate medial wall and restoring offset, hip centre and leg lengths• Neck may need to be cut in-situ; bone graft is usually necessary and ideally should be taken from the femoral head• Antiprotrusio cages or custom implants may be needed in cases with excessive bone loss♦ Arthrodesed hip to total hip replacement• Careful evaluation of the gluteal muscles is mandatory and predicts final walking ability and patient satisfaction• Long-term effectiveness of total hip replacement in ankylosed hips is satisfactory but there is a higher complication rate

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