title: Cementless PCA unicompartmental joint arthroplasty for osteoarthritis of the knee. A prospective study of 51 cases.
abstract: The authors report a prospective study of the first 51 cementless P.C.A. unicompartmental arthroplasties performed for osteoarthritis of the knee by one surgeon. Forty-two medial prostheses in 38 patients and 9 lateral prostheses in 9 patients were reviewed at a minimum of 2 years after surgery. Patients were assessed using the HSS score. In the medial joint replacement group, 37 (88%) had an excellent or good result, 3 (7%) were fair, and 2 (5%) poor. Subjectively 37 (88%) were good, 2 (5%) were fair, and 3 (7%) had a poor result. All of the lateral joint replacements had an excellent or good result. This improvement was due to pain relief and increased functional ability; preoperative range of movement was maintained or only slightly improved. There were five unsatisfactory results, three due to technical errors (one requiring revision), one a failure of patient selection, and the last an unexplained synovitis causing persistent discomfort. The early results for the cementless PCA unicompartmental knee arthroplasty are encouraging, with a satisfactory result in 90% of patients.
authors.affiliation: Austin Hospital, Melbourne, Australia.
authors.forename: P A
authors.initials: PA
authors.lastname: Magnussen
authors.forename: R J
authors.initials: RJ
authors.lastname: Bartlett
mesh_terms: D000368:Aged; D001843:Bone Cements; D005500:Follow-Up Studies; D006801:Humans; D007719:Knee Joint / Q000502:physiology; D007720:Knee Prosthesis; D009068:Movement; D010003:Osteoarthritis / Q000601:surgery*; D011446:Prospective Studies; D013997:Time Factors
chemical_list: D001843:Bone Cements