Abstract
Objectives: We present the medium-term results of 453 primary, posterior cruciate retaining total knee replacements.
Methods: We used the Genesis I prosthesis to 453 knee-joints between 1993–2001. The patients included were 386 (67 bilateral) with age between 58–87 years (aver. 68,5 yrs). The diagnosis was osteoarthritis in 418 cases, rheumatoid arthritis in 21 cases, post-traumatic arthritis in 9 cases and osteoarhritis combined with rheumatoid disease in 5 cases. The knees flexion was ranged from 60° to 120° and the extension from 0° to 20°. In 423 cases a 5°–30° varus knee and in 31 cases a 5°–20° valgus knee was documented. The Genesis I knee prosthesis was used with cement, without patellar component implantation. The postoperative protocol included early weight bearing and follow up on the 3rd, 6th,12th month and every year.
Results: The follow up period was ranged from 2 to 10 years (aver. 5,2 yrs). Superficial infection was noted in 5 patients with a satisfactory outcome, pneumonic embolism in 3 (1 death) and deep venous thrombosis in 7 patients. The clinical and radiological assessment followed the Knee Society standards. Postoperatively the flexion was ranged from 80° to 130° with full extension of the knees. The preoperative varus & valgus deformity was totally corrected. No signs of mechanical loosening were documented. No revision surgery was needed. All the patients are happy with a good level of every day activity.
Conclusions: Our results eight years postoperatively are quite satisfactory (98%). All the prosthesis exhibit good behaviour and we believe that this type of prosthesis is a positive solution for the arthritis of the knee which needs surgical assessment.
The abstracts were prepared by Eleni Koutsoukou. Correspondence should be addressed to him at the Hellenic Association of Orthopaedic Surgery and Traumatology (HAOST), 20, A. Fleming str, 15123 Marousi, Athens, Greece.
