scholarly journals The final follow-up plain radiograph is sufficient for clinical evaluation of polyethylene wear in total hip arthroplasty

2010 ◽  
Vol 81 (5) ◽  
pp. 570-578 ◽  
Author(s):  
Maiken Stilling ◽  
Kristian Larsen ◽  
Niels T Andersen ◽  
Kjeld Søballe ◽  
Søren Kold ◽  
...  
Keyword(s):  
Total Hip Arthroplasty ◽  
Clinical Evaluation ◽  
Hip Arthroplasty ◽  
Polyethylene Wear ◽  
Plain Radiograph ◽  
Total Hip

Total hip arthroplasty using highly cross-linked polyethylene in patients aged 50 years and younger

2021 ◽  
Vol 103-B (7 Supple B) ◽  
pp. 78-83 ◽  
Author(s):  
Gordon G. Roedel ◽  
Beau J. Kildow ◽  
Daniel S. Sveom ◽  
Kevin L. Garvin
Keyword(s):  
Total Hip Arthroplasty ◽  
Clinical Outcomes ◽  
Hip Arthroplasty ◽  
Polyethylene Wear ◽  
Prognostic Significance ◽  
Head Size ◽  
Linear Wear ◽  
Total Hip ◽  
Radiolucent Lines

Aims Highly cross-linked polyethylene (HXLPE) has greatly improved the durability of total hip arthroplasty (THA) in young patients because of its improved wear characteristics. Few studies have followed this population into the second decade, and therefore the purpose of this investigation was to evaluate the clinical outcome for THA patients 50 years of age and younger at a minimum of 15 years postoperatively. The second purpose was to evaluate the radiological findings secondary to wear or mechanical failure of the implant. Methods Between October 1999 and December 2005, 105 THAs were performed in 95 patients (53 female, 42 male) aged 50 years and younger (mean 42 years (20 to 50)). There were 87 patients (96 hips) that were followed for a minimum of 15 years (mean 17.3 years (15 to 21)) for analysis. Posterior approach was used with cementless fixation with a median head size of 28 mm. HXLPE was the acetabular bearing for all hips. Radiographs were evaluated for polyethylene wear, radiolucent lines, and osteolysis. Results Clinical outcomes showed significant improvement of mean Harris Hip Scores from 52.8 (SD 13.5) preoperatively to 94.8 (SD 7.6) postoperatively. One hip was revised for recurrent instability, and there were no infections. No hips were revised for mechanical loosening or osteolysis. Mean polyethylene linear wear was 0.04 mm/year and volumetric wear was 6.22 mm3/year, with no significant differences between head size or material. Osteolysis was not present in any of the hips. Conclusion The use of HXLPE in THA for patients aged 50 years and younger has performed exceptionally well without evidence of significant wear causing mechanical loosening or necessitating revision. The radiolucent lines of the acetabular component must be followed to determine the prognostic significance. This investigation represents the longest clinical follow-up of a large, consecutive cohort of patients aged 50 years or younger with THA using HXLPE. This long-term analysis found negligible polyethylene wear, no incidence of aseptic loosening, and excellent clinical outcomes at and beyond 15 years of follow-up. Cite this article: Bone Joint J 2021;103-B(7 Supple B):78–83.

Wear of XLPE Liner against Zirconium Heads in Cementless Total Hip Arthroplasty for Patients under 40 Years of Age

2017 ◽  
Vol 27 (6) ◽  
pp. 532-536 ◽  
Author(s):  
Motoki Sonohata ◽  
Masaru Kitajima ◽  
Shunsuke Kawano ◽  
Masaaki Mawatari
Keyword(s):  
Total Hip Arthroplasty ◽  
Hip Arthroplasty ◽  
Polyethylene Wear ◽  
Japanese Orthopaedic Association ◽  
Young Patients ◽  
Stress Shielding ◽  
Developmental Dysplasia ◽  
Total Hip ◽  
The Mean

Introduction Total hip arthroplasty (THA) in the young is challenging. The purpose of this study was to retrospectively determine the clinical, radiographic, and polyethylene wear rate of relatively young patients. Methods We evaluated the outcome of consecutive patients receiving primary THA who were under 40 years of age with a minimum 10-year follow-up. Indications for THA in these patients were osteoarthritis due to developmental dysplasia of the hip joint (9 hips), osteonecrosis of the femoral head (7 hips), juvenile idiopathic arthritis (2 hips), and osteoarthritis due to Perthes disease (1 hip). All THA were performed with a cross-linked ultra-high-molecular-weight polyethylene (XLPE) liner against zirconium heads with cementless implants. Results The average Japanese Orthopaedic Association hip score significantly improved from 42 to 93 points at the latest follow-up. The mean steady wear was 0.015 mm/year (maximum 0.033 mm/year), and the mean creep wear was 0.111 mm (maximum 0.4 mm). Osteolysis was observed around 1 acetabular component and 2 stems. 1 femoral component had subsidence over 5 mm. All of the femoral components achieved fixation with an optimal interface with spot welds at the latest follow-up. Stress shielding was observed in all hips. Conclusions THA using an XLPE liner against zirconium heads appeared to have improved THA longevity. However, the imaging findings in some cases were suggestive of wear debris. A rigorous continual follow-up is required for relatively young patients undergoing THA.

Total Hip Arthroplasty in Patients 21 Years and Younger Using Highly Cross-Linked Polyethylene: Excellent Survivorship at Five Years

2018 ◽  
Vol 02 (02) ◽  
pp. 092-096
Author(s):  
Muyibat Adelani ◽  
Frank Bohnenkamp ◽  
Gail Pashos ◽  
John Clohisy ◽  
Adam Sassoon
Keyword(s):  
Los Angeles ◽  
Total Hip Arthroplasty ◽  
Hip Arthroplasty ◽  
Polyethylene Wear ◽  
Short Form ◽  
Young Patients ◽  
Wear Rates ◽  
Total Hip ◽  
Radiographic Outcomes

AbstractThe survivorship of contemporary total hip arthroplasty has improved substantially as a result of the success of highly cross-linked polyethylene. Nevertheless, there is limited information on its performance in extremely young patients. The purpose of this study is to evaluate the (1) clinical and radiographic outcomes, (2) polyethylene wear rates, and (3) mid-term survivorship of total hip arthroplasty in patients 21 years or younger using highly cross-linked polyethylene. After Institutional Review Board approval, the authors identified 45 patients aged 21 years or younger (56 hips) who underwent primary total hip arthroplasty with highly cross-linked polyethylene at their institution by the senior author between 2000 and 2009. Patients were followed for a minimum of 2 years, or until revision. At a mean follow-up of 57 months, modified Harris Hip Scores, Western Ontario McMaster Universities Arthritis Index scores, Short Form-12 physical function scores, and University of California, Los Angeles activity scores improved significantly in all patients. There was no radiographic evidence of osteolysis in any patient. The mean linear polyethylene wear rate was 0.02 mm per year. Survivorship was 98% with one revision for acetabular loosening at 71 months. Total hip arthroplasty in patients 21 years or younger with highly cross-linked polyethylene had excellent clinical and radiographic outcomes at mid-term follow-up. Longer-term data are needed in this patient population to confirm continued survivorship in the extremely young. The level of evidence used for this study was level III.

Polyethylene wear of the porous-coated anatomic total hip arthroplasty with an average 11-year follow-up

2001 ◽  
Vol 16 (8) ◽  
pp. 116-121 ◽  
Author(s):  
Haruo Kawamura ◽  
Robert B. Bourne ◽  
Michael J. Dunbar ◽  
Cecil H. Rorabeck
Keyword(s):  
Total Hip Arthroplasty ◽  
Hip Arthroplasty ◽  
Polyethylene Wear ◽  
Total Hip

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 Long-Term Results of Total Hip Arthroplasty with RM Classic Cups

2019 ◽  
Vol 25 (3) ◽  
pp. 25-33
Author(s):  
V. V. Danilyak ◽  
V. V. Klyuchevsky ◽  
M. A. Molodov ◽  
E. V. Goryunov ◽  
K. V. Marchenkova
Keyword(s):  
Total Hip Arthroplasty ◽  
Aseptic Loosening ◽  
Hip Arthroplasty ◽  
Polyethylene Wear ◽  
Long Term Results ◽  
Harris Hip Score ◽  
Pelvic Bone ◽  
Total Hip

Relevance. The RM Classic monoblock titanium-coated polyethylene cup is widely used in the total hip arthroplasty. However, so far in Russia there has been no analysis of follow-up over 10 years for a limited number of patients in a single hospital. The aim of the study was to evaluate the long-term outcomes of total hip replacement with RM Classic acetabular component. Materials and Methods. The outcomes of 328 total hip arthroplasties (289 patients operated in the period from 1997 to 2007) with RM Classic cups were evaluated in a monocentral retrospective clinical study. The average follow-up period was 14.4 years. Revision procedure due to aseptic loosening, polyethylene wear or osteolysis was considered as the end point of the study. Results. 9 revisions during the short and medium follow-up periods (up to 10 years) were associated with malpositioning of RM Classic components and errors in surgical technique. The indications for later revision THA (19 cases) were polyethylene wear and aseptic loosening. Only in one case they were combined with pelvic bone osteolysis with the formation of III a defect according to W.G. Paprosky classification. Within 15 years the Kaplan-Meier survivorship of RM Classic cup was 92.5%. There was a statistically significant difference of the survival curves in the ceramic-on-poly against metal-on-poly bearings: 94.9% and 79.4%, respectively. The average Harris Hip Score was 88.6. Conclusion. RM Classic uncemented monoblock cup has proven its high efficiency and survival in 15 years follow-up period and over.

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