Eligibility criteria
neurological dysfunction, knee deformities, congenital bony deformities, contracture, fracture, knee osteoarthritis, traumatic osteoarthritis, arthroplasty, patellar dislocation
RHEUMATOID ARTHRITIS, INFLAMMATORY ARTHRITIS, SEPTIC ARTHRITIS, KNEE OSTEOARTHRITIS, SECONDARY
The inclusion criteria for this study were as follows: patients with symptomatic primary, bilateral varus knee osteoarthritis (minimum Kellgren–Lawrence grade 3) who required primary bilateral TKA; patients fit for surgical intervention; patients aged between 18 and 90 years at the time of surgery; patients who were able to give informed consent and agree to comply with the postoperative review programme; and patients who were able to attend follow-up visits at the clinic. The exclusion criteria for this study included the following: patients with rheumatoid arthritis, infected or septic arthritis, and other inflammatory arthritis; secondary or traumatic osteoarthritis; preexisting or congenital bony deformities; severe knee deformities (a varus or valgus deformity) greater than 15°; flexion contracture greater than 10°; patellar dislocation; a requirement for arthroplasty for fracture or previous osteotomy; underlying neurological dysfunction compromising mobility; and an inability to tolerate general anaesthesia.