Pathophysiology. Tarsal tunnel syndrome is a tunnel syndrome characterized by compression of the posterior tibial nerve and/or its distal terminal branches by the internal annular ligament. The posterior tibial nerve gives, in the retro-malleolar region,
Anatomical reminder Corresponds to damage to the obturator nerve Born from roots L2-L3-L4 It first passes behind the psoas major, emerges from it via the medial edge and descends vertically into the pelvis from which
Anatomical reminder Originates from the ventral branches of the 2nd and 3rd lumbar root It passes behind the psoas muscle (in red), exits the lateral part of the psoas towards its middle and crosses ventrally
Anatomical reminder The interosseous nerve is the main branch of the median nerve in the forearm. It appears between 5 and 8 cm below the elbow at the level of the pronator teres muscle. He
Anatomical reminder The suprascapular nerve detaches from the upper primary trunk of the brachial plexus. It contains C5 C6 fibers. It passes through the coracoid notch (1) under the coracoid ligament (in green) then at
Anatomical reminder There is no synovium in Guyon’s canal where only the artery and the ulnar nerve pass. Consequently, any compression of the ulnar nerve in this compartment is of extrinsic origin. At the wrist,
Anatomical reminder 1- Radial nerve 2- vessels 3-Median nerve 4- Brachialis muscle 5- Humerus 6-Ulnar nerve 7- Olecranon The ulnar nerve travels in the epitrochleo-olecranon groove on the inner side of the elbow. It relates
Anatomical reminder Carpal tunnel syndrome is linked to compression of the median nerve in the wrist. The carpal tunnel is a narrow tunnel formed posteriorly by the carpal bones and anteriorly by the anterior annular
Root canal syndromes: definition Nerve compression syndromes, called “ductal syndromes” (entrapment neuropathy in the English) are defined as the clinical translation of a conflict between a peripheral nerve trunk and a particular anatomical region of
A new concept: Cicatricial neuropathy. The most misunderstood and yet the most frequent of the neuropathies responsible for neuropathic pain. Indeed, a recent study carried out by a Parisian pain center finds an incidence between
Nerves are formed by the axons of nerve cells (the axon is an extension of the nerve cell). These axons are or are not surrounded by myelin sheath from other cells: Schawnn cells. Anatomy: A