Muscular Variations of Extensor Digitorum Brevis Muscle Related with Anterior Tarsal Tunnel Syndrome / 체질인류학회지

During routine dissection, additional muscular head of extensor digitorum brevis muscle attaching to the third toe and accessory muscle perforated by the branch of the deep peroneal nerve were observed in the right foot of a 71-year-old male cadaver. The additional muscular head originated from the dorsal surface of cuboid bone, and ran parallel with the third tendon of the extensor digitorum brevis muscle. It was conjoined with the third tendon of extensor digitorum brevis at the middle of its course. The accessory muscle was a small muscle which was covered with the muscle belly of the extensor hallucis brevis muscle. It originated from the dorsal surface of the calcaneus, and inserted to the lateral one-third of transverse retinacular band. These two variants were innervated by the branches of deep peroneal nerve. The branches of deep peroneal nerve were compressed under the tendon of extensor hallucis brevis and around the site where the nerve branch perforated the small muscle. The clinical significances of these variations and tendon of extensor hallucis brevis muscle were discussed.

Effects of Lateral Gastrocnemius Muscle Branch Nerve Transferring on Deep Peroneal Nerve Impairment in Rats / 中国康复理论与实践

Objective To explore the feasibility and effectiveness of lateral gastrocnemius muscle branch nerve transferring for deep pe-roneal nerve injury. Methods Thirty-two adult female Sprague-Dawley rats were divided into control group (n=8), sham group (n=8), nerve direct repairing group (n=8) and nerve transferring group (n=8). Twelve weeks after the anastomosis, the nerve anastomosis was observed vi-sually, the length of lateral of gastrocnemius muscle branch (L1), the diameter at the point of entering muscle (D1), the maximum detachable length of nervus peroneus communis (L2), the diameter of deep peroneal nerve (D2) and the distance between branch point and neck of fibu-la (S) were measured. The peroneal nerve functional index (PFI), the amplitude of compound muscle action potential (CMAP), nerve con-duction velocity (NCV), the weight of the tibialis anterior and the creatine kinase (CK) activity of theanterior tibial were compared among groups. Results L10.05). Conclusion It is feasible that lateral head muscular branches of gastrocnemius nerve transferring can repair deep peroneal nerve injury, which is needed to separate superficial peroneal nerve and deep peroneal nerve in the epineurium without damaging nerve for tension free neuroanastomosis. Lateral head muscular branches of gastrocnemius nerve transferring can repair the func-tion after deep peroneal nerve injury.

Variations in the cutaneous innervation of the dorsum of foot – A case report.

The skin on the dorsum of the foot is innervated by the superficial peroneal, deep peroneal, sural and saphenous nerves. Most of the dorsum is supplied by the superficial peroneal nerve. Here we report a variation in the sensory innervation of the dorsum of the left foot in a 52 years old male cadaver. The skin of the first inter-digital cleft i.e., the cleft between the great and second toes which is normally innervated by the deep peroneal nerve was also supplied by the superficial peroneal nerve. A communication between the superficial and the deep peroneal branches were also observed prior to innervation. In addition, the fourth inter digital cleft i.e., cleft between the fourth and fifth toes which is normally innervated by the superficial peroneal nerve was supplied by the sural nerve. Cutaneous nerves on the dorsum of foot are at risk for iatrogenic damage while performing arthroscopy, local anaesthetic block, and surgical approach to the fibula, open reduction and internal fixation of lateral malleolar fractures, application of external fixators, elevation of a fasciocutaneous or fibular flaps for grafting, surgical decompression of neurovascular structures, or miscellaneous surgery on leg, foot and ankle. Therefore a detailed knowledge about the variations in the pattern of cutaneous innervation of dorsum of foot may decrease the damage to these nerves during operative procedures.

Compression Neuropathy of Superficial Peroneal Nerve and Deep Peroneal Nerve Following Acupuncture Treatment: A Case Report / 대한족부족관절학회지

Acupuncture has been widely used to treat a variety of disease and symptoms. But various complications have been reported. Among them, peripheral nerve injuries have been reported less frequently than other complications. The purpose of this report is to describe what we believe to be the first case of delayed superficial and deep peroneal nerve compressive neuropathy caused by fibrotic mass formed by neglected broken acupuncture needle.

The effects of the accessory deep peroneal nerve on the diagnosis of the deep peroneal nerve injury / 中华物理医学与康复杂志

Objective To study the effects of the accessory deep peroneal nerve,an anomalous branch of the superficial peroneal nerve, on the diagnosis of the deep peroneal nerve injuries. Methods Ten cases (7 male, 3 female, mean age 32.8 years) of deep peroneal nerve injuries with the presence of accessory deep peroneal nerve were examined in this study. All the cases were reviewed and analyzed with regard to the basic anatomy, clinical symptoms, electrophysiological data and diagnosis. Results In the presence of the accessory deep peroneal nerve, the lesions of the deep peroneal nerve spare the function of the lateral portion or the whole of the the extensor digitorum brevis (EDB) muscle. It may result in an unconformity of the severity of lesion and its clinical symptoms as well as the electrophysiological findings. Conclusion Knowledge of this anomaly is of crucial importance in the clinical evaluation of nerve injuries of deep peroneal nerve, as well as in avoiding errors in interpreting the electrophysiological data of this nerve.