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Review Question - QID 1217

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QID 1217 (Type "1217" in App Search)
A 54-year-old male with Protein C deficiency sustained a stroke 3 months ago with subsequent left sided weakness. The patient's skin is intact with no sign of ulcerations or callosities. His left foot is developing a varus deformity secondary to a spastic tibialis anterior. His ankle has a 5 degree plantar flexion deformity due to a gastrocnemius contracture which improves with knee flexion (positive Silverskiold test). The patient has an intrinsic minus foot with supple claw toes present. Which of the following is the most appropriate next step in management?

Gastrocnemius fascia lengthening (Strayer) procedure

16%

423/2586

Split anterior tibial tendon transfer (SPLATT)

14%

360/2586

Flexor hallucis longus tendon transfer to the dorsum of the foot and release of the flexor digitorum longus and brevis tendons at the base of each toe

10%

254/2586

Fractional lengthening of the tibialis posterior

1%

13/2586

Ankle foot orthosis (AFO) with physical therapy

59%

1522/2586

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The key to this patient's presentation is the occurrence of the stroke only 3 months ago. Miller Review states at least a 6 month delay is required and the review article by Younger and Hansen state a delay of 18 to 24 months between cerebral injury and reconstructive surgery is advisable because of the possibility of various degrees of functional recovery. The critcial components to nonoperative management include AFO fitting, early intervention with physical therapy, stretching and strengthening, and maintenance of joint range of motion. Phenol or botox injections can also be useful nonsurgical adjuvants.
Equinovarus posturing is the most common ankle-foot abnormality following a stroke. The equinus component is caused by overactivity of the gastrocnemius-soleus complex. The varus is due to relative overactivity of the tibialis anterior, with contributions from the tibialis posterior, FHL, and FDL. Each of the surgical options are reasonable treatments for this patient's presentation if there had been an adequate interval between the patient's cerebral insult and he had failed conservative management.

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