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 Cervico-thoracic parade syndrome corresponds to the compression of the brachial plexus (all of the upper limb nerves), the subclavian artery and/or the subclavian vein in the passage formed by the inter-scalènic parade and
Anatomical reminder The common peroneal nerve is formed by bifurcation of the sciatic nerve at the apex of the popliteal fossa. It runs along the medial edge of the biceps femoris muscle then its tendon.
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 From the posterior and lower part of the axillary fossa, it runs downwards and outwards into the posterior brachial region along the posterior surface of the humerus in the radial groove (in contact
Anatomical reminder The serratus anterior muscle is innervated by the long thoracic nerve. This nerve arises from the 5th, 6th, and 7th spinal nerves at their junction forming the superior primary trunk of the brachial
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
Pathophysiology of neuralgia of the pudendal nerve Classic pudendal nerve neuralgia is a tunnel syndrome (like carpal tunnel syndrome). There are two areas of possible conflict in the pelvic area: at the level of the
Installation in a few hours: Mainly vasculitis (polyarteritis nodosa) The picture is more of a multineuritis with multiple radicular or truncal involvement. Installation in a few days: – Guillain-Barrè syndrome and its variants. – Neuropathy
Etiology Hereditary neuropathies due to hypersensitivity to pressure. Chronic relapsing polyradiculoneuritis.