What Is Subtalar Arthrodesis?

Make a 5-6 cm long incision along the subtalar joint on the outside of the dorsal foot. Cut the skin and subcutaneous tissue to expose the subtalar joint and the sacral sinus. Thoroughly remove the fat pad in the sacral sinus and the surrounding soft tissue to make the plantar flexion and varus inversion, and use the bone knife between the talar neck and the calcaneus to make the corresponding bone groove. Make a 5-6 cm long incision on the inner side of the upper end of the tibia, cut the periosteum, take a full layer of bone cortex with a width of about 0.8 cm and a length of about 5 cm, and suture the calf incision. Divide the removed tibia piece into two equal pieces, trim it into a trapezoid with a wide outer width and a narrow inner shape, and bring the cancellous bone of the two bone pieces together to make it fit into the talar groove.

Subtalar joint fusion

Make a 5-6 cm long incision along the subtalar joint on the outside of the dorsal foot. Cut the skin and subcutaneous tissue to expose the subtalar joint and the sacral sinus. Thoroughly remove the fat pad in the sacral sinus and the surrounding soft tissue to make the plantar flexion and varus inversion, and use the bone knife between the talar neck and the calcaneus to make the corresponding bone groove. Make a 5-6 cm long incision on the inner side of the upper end of the tibia, cut the periosteum, take a full layer of bone cortex with a width of about 0.8 cm and a length of about 5 cm. Divide the removed tibia piece into two equal pieces, trim it into a trapezoid with a wide outer width and a narrow inner shape, and bring the cancellous bone of the two bone pieces together to make it fit into the talar groove.

Chinese name

Subtalar joint fusion

Foreign name

subtalar external arthrodesis

Subtalar joint fusion

Sub-articular joint fusion

Orthopaedics / Surgery for Paralytic Diseases / Surgery for Foot and Ankle Deformities

81.1301

Subtalar joint fusion is used for the treatment of ankle deformities and anatomy related to surgery.

Subtalar joint fusion for foot valgus deformity in children under 12 years of age.

Inversion of horseshoe with Achilles tendon contracture.

1. Take X-ray pictures to understand the bone structure and development of the ankle. Estimate the range of osteotomy fusion during the operation.

2. If Achilles tendon contracture is involved, the Achilles tendon must be extended first, and the deformity should be corrected before surgery.

Use spinal or epidural anesthesia. Supine position.

1. In order to facilitate the operation, the long fibular muscle transfer should be performed before the bone grafting operation.

2. The direction in which the bone mass is implanted in the epiphyseal sinus should be parallel to the longitudinal axis of the tibia.

The front and rear plaster supports were used to fix the foot at the 90 ° functional position of the dorsal extension. After 2 weeks of suture removal, the foot was changed to tubular plaster. After 10 to 12 weeks, the film was taken to confirm that the bone was healed, and the joint was removed and fixed. If the bone graft is firmly embedded, you can also walk with plaster.