6.2 PERONEUS LONGUS, BREVIS AND TERTIUS
6.2 PERONEUS LONGUS, BREVIS AND TERTIUS
Figure 5. Pain pattern referred from TrPs at commonly observed locations in the peroneal muscles (Travell & Simons, 1992).
Symptoms• Patients may complain of 'weak ankles', and present with a history of inversion ankle sprains.
• Pain and tenderness commonly around the lateral malleolus.
• Foot drop may be present if deep peroneal nerve becomes entrapped.
Trigger Point Examination
• Most common TrP is found in peroneus longus.
• Taut bands and TrPs in the peroneals are easily palpable because of their size and proximity to the underlying bone.
Associated Trigger Points
• Secondary TrPs commonly develop in extensor digitorum longus.
• TrPs in peroneus longus are associated with TrPs in tibialis posterior.
Differential Diagnoses
• MPS of tibialis anterior and the long and short extensors of the hallux and digits.
• Nerve entrapment syndromes of the common, superficial or deep peroneal nerves.
• Lateral compartment syndrome.
• Ankle sprain.
• Rupture of the peroneus longus or brevis tendon.
• Painful os peroneum.
© Zak Zisopoulos & Adam Bird, 2000.