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J Bone Joint Surg Br. 1999 May;81(3):427-30.

Charnley low-frictional torque arthroplasty of the hip. 20-to-30 year results.

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John Charnley Research Institute, Wrightington Hospital, Wigan, Lancashire, UK.


We reviewed 261 patients with 320 Charnley low-friction arthroplasties who had a mean follow-up of 22 years 10 months (20 to 30). Of these, 93.9% considered the operation to be a success; 82.3% were free from pain and 11.6% had occasional discomfort. Satisfactory function was achieved in 59.6% and 62% had an excellent range of movement. The clinical results did not correlate well with the radiological appearance; radiologically loose components did not affect the clinical outcome. The main long-term problem was wear and loosening of the UHMWPE cup. Our findings suggest that the radiological appearance of the arthroplasty is a more reliable indication of the state of the arthroplasty than the clinical results.

[Indexed for MEDLINE]

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