Abstract
Aims: In this study we present the outcome for patients with the Rotaglide mobile meniscal knee prosthesis implanted for osteoarthritis. Method: All patients reviewed had this prosthesis implanted as a primary total knee Arthroplasty in Crosshouse Hospital. The minimum follow up period was 5 years (range 5–8.2). Patients were assessed clinically by the junior author (CW) and results were standardised using the Hospital for Specialist Surgery (HSS) knee score. Standard radiographs were taken in AP and lateral planes to assess for loosening using the Knee Society roentgenographic system. Case notes were then examined for evidence of peri and postoperative problems. Results: Sixty-seven patients (73 knees) were reviewed. 97% of patients had an excellent clinical outcome with HSS scores of 85 or more. Two knees (2.7%) were revised, one for meniscal fracture and one for meniscal dislocation. There have been no revisions for aseptic loosening and no deep infections to date. Both these revisions may be related to incorrect tissue balancing of the ßexion and extension gaps early in our learning curve with this prosthesis. These meniscal complications highlight the exacting nature of the surgical technique required for this prosthesis, particularly for the Surgeon used to implanting þxed bearing TKRñs which are more forgiving of suboptimal soft tissue balancing. Conclusions: We feel this prosthesis offers a safe and effective treatment for osteoarthritis with a good clinical outcome at 5 years with a low level of complications.
Theses abstracts were prepared by Professor Dr. Frantz Langlais. Correspondence should be addressed to him at EFORT Central Office, Freihofstrasse 22, CH-8700 Küsnacht, Switzerland.
