FLEXOR TENDON INJURIES

FLEXOR TENDON INJURIES
Flexors of the wrist, fingers and thumb are discussed
here.
Wrist Flexors: The main wrist flexors are the flexor
carpi radialis and flexor carpi ulnaris. They together
bring about palmar flexion of the wrist in the midline.
If the flexor carpi radialis is cut, wrist deviates
medially towards the intact flexor carpi ulnaris and
laterally towards intact flexor carpi radialis if flexor
carpi ulnaris is cut.
Finger Flexors: Flexion of the proximal interphalangeal
joint of the fingers is brought about
mainly by FDS and since FDP crosses this joint, it
also aids FDS but FDP is solely responsible for the
flexion of distal interphalangeal joint. Both flexor
digitorum superficialis (FDS) and flexor digitorum
profundus (FDP) could be injured, singly or together.
Flexion of the proximal interphalangeal joint of the
fingers is brought about mainly by FDS and since
FDP crosses this joint, it also aids FDS, but FDP is
solely responsible for the flexion of distal
interphalangeal joint.