Orthopedics > OCOSH Classification > Orthopaedic Procedures > Arthroplasty > Replacement Arthroplasty > Hip Replacement Arthroplasty > Acetabular wear in Total Hip Arthroplasty eMedicine Orthopedics

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Acetabular wear in Total Hip Arthroplasty eMedicine Orthopedics

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Location: http://emedicine.medscape.com/article/1247594-overview

Description: Bezwada, Nazarian & Booth 2004 Updated: Apr 15, 2009
Since the introduction of the low-friction total hip arthroplasty (THA) by Sir John Charnley, wear has been a primary issue in hip arthroplasty. Charnley's original choice for bearing surfaces was a stainless steel head on polytetrafluoroethylene (PTFE). This choice was complicated by a wear rate of 7-10 mm within a 3-year period. This led him to search for other bearing materials, namely high molecular weight polyethylene. Although wear remains a problematic issue in THA, its consequences, namely osteolysis and prosthetic loosening, loom as larger issues.
Synonyms and related keywords: low-friction total hip arthroplasty, THA, acetabular wear debris, fatigue, interfacial wear, backside wear, linear penetration, hip reconstruction, hip prosthesis, hip implant, hip replacement, osteolysis, prosthetic loosening

Type: Reference Material
Author/Contact: Bezwada & Nazarian
Institution: eMedicine
Primary Subject/Category:

Language: English

Submitted by: admin
Hits: 816
Added: Wed Mar 19 2008
Last Modified: Fri Oct 29 2010