Ten year follow-up of pyrocarbon implants for proximal interphalangeal joint replacement.
Results of anatomical resurfacing of the proximal interphalangeal joint using pyrocarbon implants showed reasonable clinical results with a high radiographic migration rate. The aim was to investigate the subjective, clinical, and radiographic results 10 years following surgery, and to compare them with our 2-year follow-up data. We re-evaluated 12 patients with 15 proximal interphalangeal implants on average 9.7 years after surgery. Pain significantly improved from 7.6 on a visual analogue scale pre-operatively to 1.4 at 2 years, and to 0.7 at the final follow-up. The mean total range of motion in all replaced joints was 36° pre-operatively and 39° at the 2-year follow-up, but had decreased significantly to 29° at 10 years. We saw one implant migration in addition to the eight migrated implants we already found 2 years after surgery. The moderate clinical results, combined with the high migration rate, mean that we no longer use this kind of implant.
Department of Hand Surgery, Schulthess Clinic, Zurich, Switzerland.
L
L
Reissner
Department of Hand Surgery, Schulthess Clinic, Zurich, Switzerland.
S
S
Schindele
Department of Research and Development, Schulthess Clinic, Zurich, Switzerland.
S
S
Hensler
Department of Research and Development, Schulthess Clinic, Zurich, Switzerland.
M
M
Marks
Department of Hand Surgery, Schulthess Clinic, Zurich, Switzerland daniel.herren@kws.ch.
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DB
Herren
D000368:Aged; D050806:Arthroplasty, Replacement, Finger; D001672:Biocompatible Materials; D002244:Carbon; D005260:Female; D005384:Finger Joint / Q000000981:diagnostic imaging / Q000601:surgery*; D005500:Follow-Up Studies; D006801:Humans; D007595:Joint Prosthesis; D008297:Male; D008875:Middle Aged; D010003:Osteoarthritis / Q000000981:diagnostic imaging / Q000601:surgery*; D011446:Prospective Studies; D011859:Radiography
D001672:Biocompatible Materials; C009139:pyrolytic carbon; D002244:Carbon
Pyrocarbon; arthritis; arthroplasty; proximal interphalangeal joint