Harkless L B, Bembo G P
University of Texas Health Science Center at San Antonio.
Clin Podiatr Med Surg. 1994 Oct;11(4):635-45.
CVA is a very common problem that can lead to lower extremity complications. Impairment in gait pattern occurs often due to spasticity and less frequently due to prolonged flaccidity. This problem is manifested by equinus, varus, equinovarus, and toe flexion deformities. Therefore, prevention or elimination of spasticity must be achieved. Various modalities have been used, both conservative and surgical. Nonsurgical interventions include range of motion and strengthening exercises, pharmacologic agents, local anesthetic and phenol motor point blocks, and the use of orthoses. Surgical intervention should be considered after conservative treatment has failed. The goal of treatment is to reduce the deforming force as a result of spasticity and to allow for almost normal function to be achieved. This includes tendon transfers, tendon lengthenings, tenotomies, and arthrodeses of small toe joints. Preoperatively, the extent and progression of spasticity must be determined because this may affect the rate of recurrence of the deformity following surgical correction. The combination of arthrodeses of the interphalangeal joints and flexor tendon release is the best option in the presence of a spastic deformity. Arthrodesis provides for stability at the joint, whereas a flexor release eliminates the deforming force. Failure to address the plantar-flexor force of the long flexors can lead to instability at the fusion site. This may in turn lead to nonunion and recurrence of flexion contracture as shown in the case report in this article.
