Results of a single total knee prosthesis compared with multiple joint replacement in the lower limb.

We present the clinical results of total knee replacement (TKR) in 133 patients who had two or more major joints of the lower limbs replaced, and compare them to the outcome in 406 patients with an isolated TKR. 383 patients had osteoarthritis (OA) and 136 had rheumatoid arthritis (RA) and these were assessed separately. A meniscal bearing prosthesis was used.

Successful treatment of valgus deformity of the knee with an open supracondylar osteotomy using a coral wedge: a brief report of two cases.

We present the clinical and radiological results of two patients with valgus deformity of the knee who underwent an open supracondylar osteotomy of the femur. A biocoral wedge was inserted in the lateral aspect of the osteotomy to maintain the correction without internal fixation. At 15 and 13 months, respectively, after the operation, tomograms showed correction of the deformity, sound healing of the osteotomy, partial absorption of the coral with complete incorporation of the graft within the bone and no complications.

Reduction of polyethylene in a congruent meniscal knee prosthesis. Experimental and clinical studies.

Polyethylene wear was assessed in the Rotaglide congruent meniscal bearing total knee prosthesis and a partial congruent total knee prosthesis with fixed bearing polyethylene tibial platform and a posterior stabilizer mechanism. A special wear test rig was used to test the 2 prostheses under compression load of 2960 N/mm2 (about 4 times the average body weight) and continuous 0 degree-70 degrees flexion-extension motion at the rate of 1 cycle per second. The most remarkable finding was the lack of measurable wear on the Rotaglide meniscal bearing up to 3.

The Rotaglide total knee arthroplasty. Prosthesis design and early results.

The Rotaglide knee (Cozim Medical, UK) is a three-part knee containing a mobile polyethylene meniscal platform, imparting reduced loosening forces to the tibia. The femoral component design provides a high degree of congruency throughout the range of motion from 0 degree to 110 degrees, and both femoral and tibial components ensure minimal bone removal. The system is versatile, including a large number of component options, and it may be used in both primary and revision arthroplasties.