- Discussion:
- extends lateromedially from mid-palmar septum to hypothenar eminence;
- extends proximodistally to level of superficial palmar arch;
- dorsally the bursa is bordered by the middle, ring, (and ? little) finger
metacarpals and palmarly by the flexor tenons and lumbricals;
- bursa functions to minimizes friction between long, ring, & little flexor tendons (& ensheathed
lumbrical muscles) and the underlying metacarpal bones and the interosseous muscles;
- Mid Palmar Space Abscess:
- can be produced by a rupture of pus from sheaths of the third, fourth, or fifth fingers into midpalmar bursae;
- motion of the middle and ring fingers may cause pain (false neg
Kanavel's);
- incision for draining a midpalmar abscess is made along or slightly proximal to the distal palmar crease;
