Review Question - QID 83

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Charcot-Marie-Tooth Disease QID: 83 (OBQ05.47)

QID 83 (Type "83" in App Search)

Lateral forefoot and heel posts would be the appropriate orthotic for the foot deformities associated with which of the following conditions?

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Charcot-Marie-Tooth disease

75%

1132/1512

Stage II posterior tibial tendon insufficiency

17%

255/1512

Stage III posterior tibial tendon insufficiency

57/1512

Charcot arthropathy

29/1512

Hallux rigidus

25/1512

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Lateral forefoot and heel posts are most appropriate for cavovarus foot deformities. This deformity is typical of Charcot-Marie-Tooth (CMT) disease. Posting the lateral forefoot allows for flexion of the first metatarsal (correcting the forefoot driven, hindfoot varus deformity commonly seen in CMT), and posting the lateral heel corrects the varus hindfoot.

Cavovarus deformity can also be caused by poliomyelitis and cerebral palsy.

Schwend et al. reviewed cavus foot deformity in children. The goal of surgical management is to obtain a mobile plantigrade foot with correction of the cavus deformity.