Any abnormality of the nerve or its surroundings that results in a reduction in the surrounding space, leads to compression of the nerve. The carpal tunnel is strait, so it anatomically predisposes nerves to damage. See the Canalis carpi page for more information.Įtiology and pathogenesis It also sends nervi digitales palmares, which supply motorized musculi lumbricales I et II (for the 2nd and 3rd finger) and sensitively the 1st finger to the half of the 4th finger from the palmar side and their innervation extends beyond the tips fingers to the dorsum of the hand, where they sensitively supply the distal parts of the phalanges. flexor pollicis brevis, which are supplied by the ulnar nerve. After passing through the carpal tunnel, it sends rami musculares to the thenar muscles in addition to the m. Nervus medianus sends above the carpal tunnel ramus palmaris nervi mediani - a sensitive branch for the lateral region of the carp and the lateral part of the palm therefore, this area is not sensitively affected by CTS. The median nerve and 9 tendons of finger flexors pass through the tunnel. palmar side: ligamentum carpi transversum or retinaculum musculorum flexorum,.eminentia carpi radialis: tuberculum ossis scaphoidei a tuberculum ossis trapezii,.eminentia carpi ulnaris: os pisiforme, hamulus ossis hamati,.The borders of the carpal tunnel consist of: CTS often occurs bilaterally and the dominant hand is more affected. The average age of patients is between 45 and 55 years with a predominance of disability in the working population. The incidence is reported between 180 and 346 cases diagnosed / 100,000 population per year, with women being affected about 3 times more often than men. Disability is quantified by electromyography. Subjective symptoms include paresthesia and 1st to 4th finger dysesthesia, and objective symptoms include atrophy of the outer portion of the thenar. The main risk factors include long-term, excessive and unilateral overloading of the hand and wrist, vibration with transmission to the hand, but also diabetes mellitus or thyroid diseases. It is the most common entrapment syndrome, the most common mononeuropathy and at the same time the most common occupational disease. Syndroma canalis carpi ( Carpal tunnel syndrome, CTS) is a compression neuropathy in the wrist. 1.1.4.5 Classification according to the severity of the clinical findingĬhronic nerve compression syndromes (entrapment) Carpal tunnel syndrome.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |