Abstract
We reviewed retrospectively 94 patients who had undergone soft-tissue release to correct flexion contracture of the knee to determine the incidence of postoperative hypertension. The cause of contracture in most patients was cerebral palsy (45) or old poliomyelitis (39). Twenty patients developed persistent hypertension. Two of them were symptomatic, one developing hypertensive encephalopathy. Patients who had had poliomyelitis were at a higher risk than those with cerebral palsy; the risk increased with bilateral procedures. The amount of correction achieved had no influence on the incidence of hypertension.
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