Poor results of the cementless total hip arthroplasty with a nonporous coated acetabular component: AcSys Shearer Cup

Ikema, Masahide; Oyama, Masamizu; Kita, Atsushi; Funayama, Kanichi

doi:10.1007/s00776-007-1161-y

Cited by 4 publications

(1 citation statement)

References 18 publications

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“…Other reported problems include periprosthetic fracture, a failed arthroplasty, nonunion of an intertrochanteric fracture,4 and prosthetic dislocation 5. While mechanical factors due to the characteristics of the metal prostheses and fixation mechanisms used for this form of surgery can influence total hip arthroplasty outcomes differentially,6 it is possible other factors explain why some hip arthroplasty cases are more vulnerable to complications than others. Some of these risk factors include, age, disease duration, and comorbid status.…”

Section: Introductionmentioning

confidence: 99%

Body mass characteristics of hip osteoarthritis patients experiencing aseptic loosening, periprosthetic fractures, dislocation, and infections after total hip replacement

Marks¹

2009

CEOR

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This work assessed the body mass characteristics of a cohort of community dwelling adults requiring surgery for complications related to primary hip arthroplasty, among other factors. The specific aim was to identify the extent to which high body mass prevailed in the cohort as a whole, to identify a role for subnormal body mass in the pathogenesis of post-operative complications following hip joint arthroplasty, and to identify whether different complication types could be differentiated on the basis of body mass profiles. The subjects were males and females drawn from a representative sample of 1,040 hip osteoarthritis patients between the ages of 30–89 years hospitalized for purposes of primary hip arthroplasty or complications related to prior replacement surgery. An analysis of their medical records showed: 1) Approximately 20% of the present cohort was constituted by patients with various complications related to prior arthroplasties, or to general deterioration of their condition; 2) The most common reasons for their re-hospitalization were aseptic prosthetic loosening followed by infection, prosthetic dislocations, prosthetic and periprosthetic fractures, and second surgeries on the opposite hip; 3) The presence of a high body mass index differentiated those presenting with aseptic prosthetic loosening, periprosthetic fractures, and those with infected hips (p < 0.007). Those with infection diagnoses were significantly heavier on average than those with no infection, regardless of diagnosis, and more cases with a dislocation history were underweight, rather than overweight (p < 0.05). It is concluded, a small but clinically relevant proportion of obese or underweight adults with hip osteoarthritis who undergo primary total hip replacement may experience complications at higher rates than cases with normal body weight, despite the generally successful outcomes experienced by the majority of hip arthroplasty patients.

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Section: Introductionmentioning

confidence: 99%

Body mass characteristics of hip osteoarthritis patients experiencing aseptic loosening, periprosthetic fractures, dislocation, and infections after total hip replacement

Marks¹

2009

CEOR

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The Effects of Acetabular Shell Deformation and Liner Thickness on Frictional Torque in Ultrahigh-Molecular-Weight Polyethylene Acetabular Bearings

Schmidig

Patel

Liepins

et al. 2010

The Journal of Arthroplasty

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Total Hip Arthroplasty Using AML® Prosthesis: Minimum 20-Year Follow-Up of the Patients

Lim

Chung

Kim

et al. 2012

J Korean Orthop Assoc

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Purpose:We reviewed the radiological outcomes and survival rate of the total hip arthroplasty (THA) with AML ® (Anatomic Medullary Locking, DePuy, Warsaw, IN, USA) hip prosthesis on long-term follow-up. Materials and Methods: From May 1988 to December 1990, 93 hip arthroplasties were performed on 77 patients in our hospital. In this study, 30 patients, of whom 41 hips underwent the procedure, were alive and able to be included. Follow-up was average of 21.4 years. The mean patient age was 45 years (35-60 years) at the time of operation. Of the hip procedures included in our study, the reasons for THA were osteonecrosis of the femoral head in 25 hips, rheumatoid arthritis in 3 and acetabular dysplasia in 2. We analyzed the wear rate of the polyethylene, osteolysis of the femur and acetabulum and stress shielding of the femur on the followup radiographs. In addition, we investigated the survival rate of the prosthesis and causes of revision in the last follow-up. Results:The polyethylene wear rate of the surviving acetabular cup was 0.15 mm/yr. Acetabular osteolysis was detected in 33 hips and was mostly in zone 2 and 3. Femoral osteolysis was showed in 32 hips in zone 1 and 7. Stress shielding over grade 3 was found in 5 of 21 femoral stems in over 13.5 mm in diameter. The grade of stress shielding did not progress with follow-up. Of the 33 hips, 26 (63.4%) cups were revised for polyethylene wear and osteolysis. There were 6 (21%) femoral stems revised for osteolysis. Conclusion:The cause of a high revision rate of the prosthesis was polyethylene wear and osteolysis. We predict that THA using AML ® prosthesis with wear-resistant bearing surfaces could increase the survival rate on long-term follow-up over 20 years.

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Poor results of the cementless total hip arthroplasty with a nonporous coated acetabular component: AcSys Shearer Cup

Cited by 4 publications

References 18 publications

Body mass characteristics of hip osteoarthritis patients experiencing aseptic loosening, periprosthetic fractures, dislocation, and infections after total hip replacement

Body mass characteristics of hip osteoarthritis patients experiencing aseptic loosening, periprosthetic fractures, dislocation, and infections after total hip replacement

The Effects of Acetabular Shell Deformation and Liner Thickness on Frictional Torque in Ultrahigh-Molecular-Weight Polyethylene Acetabular Bearings

Total Hip Arthroplasty Using AML® Prosthesis: Minimum 20-Year Follow-Up of the Patients

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