Cavus foot is a condition where the arches in the foot are significantly higher than a normal arch. This causes the heel to point inward and the toes to flex. Children with this condition typically develop it slowly from the time they begin to walk until 10 years old. Most often this condition occurs in conjunction with another musculoskeletal or nervous system disorder.
Pes cavus may be hereditary or acquired, and the underlying cause may be neurological, orthopedic or neuromuscular. Pes cavus is sometimes, but not always connected through Hereditary Motor and Sensory Neuropathy Type 1 (Charcot-Marie-Tooth disease) and Friedreich's Ataxia; many other cases of pes cavus are natural.
If you are standing, the instep looks hollow and most of the weight is on the back and balls of the foot (metatarsals head).
Your high arches can be either rigid (the arch does not move to a lower height) or flexible, (the arch can move to a lower height)
If you are sitting on the edge of table with your feet hanging in the air, the front half of the foot (forefoot) will appear to be dropped below the level of the heel.
Your foot pain guide [http://tobiBrushwood.jimdo.com/] may be in a supinated position (feet will roll outwards or the heel will tilt inwards from behind)
Examination of the muscle groups and muscle strength is important. Furthermore, pain along the peroneal tendons may be a sign of a peroneal tendon tear. This may result in a cavus foot much like a posterior tibial tendon dysfunction may result in flatfoot. Instability of the lateral ankle may also lead to a cavus foot position as the talus deviates into a varus position due to the laxity of the lateral ankle ligaments.
Non Surgical Treatment
Non-surgical treatment should be instituted early by orthotists and podiatrists. Physiotherapy to loosen tight muscles and improve strength of weak ones. Padding and orthotic shoes. Splints or appliances may be necessary for some patients. A caliper may be given to patients with very severe deformity and refractory ankle instability. Botulinum toxin type A injections into the peroneus longus and tibialis posterior have been trialled in patients with CMT, without success.
There are many types of surgical procedures that can be performed to correct the cavus foot and restore function and muscle balance. The decision as to which surgery is done depends on the underlying deformity and the pattern of muscle loss and weakness.
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