Home / Neurology and Neurosurgery / Neurological Signs / Neuromuscular Disorders / Lower Limb Wasting, Pes Cavus and Clawing of Toes

Lower Limb Wasting, Pes Cavus and Clawing of Toes

In this photo, there is apparent leg-length discrepancy and wasting of the lower limb muscles – the left side relatively more severe. Typical pes cavus (high-arched foot) are seen on both sides. Clawing of the toes can also be seen. This sign is postulated to be due to a different degree of wasting – the peroneus brevis and tibialis anterior muscles are affected more, whilst the peroneus longus and tibialis posterior muscles are relatively spared. These signs are often seen in chronic neuropathies, such as Charcot-Marie Tooth disease (Hereditary Motor and Sensory Neuropathy Type I) and Friedreich’s Ataxia.

Welcome to the HKU eLearning Platform in Clinical Neurosciences!

If this is the first time you have accessed the platform, we would be most grateful if you could let us know a little bit about you.


What is your occupation?




Medical doctor




How did you hear about this platform?