Post operative analgesia is an important part of Total Knee Arthroplasty (TKA) to facilitate early mobilisation and patient satisfaction. We investigated the effect of periarticular infiltration of the joint with chirocaine local anaesthetic (LA) on the requirement of analgesic in the first 24 hrs period post op. Retrospective analysis of case notes was carried out on 28 patients, who underwent TKA by two different surgeons. They were divided into two groups of 14 each; who did and did not receive the LA infiltration respectively. All patients were given spinal morphine (162 mcg r: 150-200). Analgesic requirement was assessed in terms of the amount of paracetamol, morphine, diclofenac, oxynorm and tramadol administered in 24hrs post op including the operating time.Background
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