carpal tunnel syndrome
Introduction
Introduction to carpal tunnel syndrome basic knowledge Sickness ratio: 0.05% Susceptible people: no special people Complications: fracture edema ganglion cyst
Cause
Causes of carpal tunnel syndrome
(1) Causes of the disease
Local factors:
Systemic factors:
(two) pathogenesis
The median nerve is in the superficial surface of the superficial flexor tendon (mostly in the middle finger, the shallow finger tendon is shallow), the position is relatively constant, and the median nerve is always in direct contact with the transverse ligament of the wrist. This particular local anatomical relationship is combined with the wrist. The transverse ligament is a relatively tough fibrous tissue with less elastic fibers, so the transversal of the transverse carpal ligament caused by any cause will cause friction and compression of the median nerve, especially in the extension of the wrist. The majority of the median nerve (about 95%) is divided into the distal edge of the transverse ligament of the wrist, the outer two branches, the lateral branch sends out the branch to support the thumb abductor muscle, the thumb to the palm muscle and the thumb short flexor (shallow head), the terminal branch is the first Refers to the volar total nerve, the end is divided into three palpital intrinsic nerves, which are distributed in the thumb, ulnar and index finger lateral skin, and the intrinsic nerve to the lateral edge of the index finger branches to the first The medial branch is divided into the 2nd and 3rd fingers of the volar total nerve, and the proximal part of the metacarpophalangeal joint is divided into two palmar lingual nerves, which are distributed in the index finger, the middle finger and the middle finger, and the ring refers to the opposite edge of the skin. The second finger palm side of the total nerve also branches to the second sacral muscle, thus, the middle
Prevention
Carpal tunnel syndrome prevention
Complication
Carpal tunnel syndrome complications