Few studies have outlined the myofascial compartments of the hand. The standard anatomy texts do not show actual anatomical specimens but instead rely on diagrams and figures to outline the various compartments. These include the thenar, hypothenar, adductor, and interosseous compartments, each encased in fascia that extended from one metacarpal to another
The ten anatomical compartments of the hand include (photo credit)
- four dorsal interossei
- three palmer interossei
- adductor pollicis
Results:Interesting findings, but doesn’t explain why it is necessary to do the fasciotomies in each and every compartment. Does the skin constrict that much? Maybe.
There was no well-defined tough fascia overlying the thenar muscles, the hypothenar muscles, or the adductor pollicis.
Areolar tissue was present between the individual thenar and hypothenar muscles.
A distinct band of fascia was noted over the entire length of the ulnar three dorsal interosseous muscles.
A band of fascia was noted over the distal portion of the palmar interossei but not over the proximal aspect.
The above findings were found in all 14 specimens.
A layer of loose areolar tissue was noted over the dorsal aspect of the first web space in eight specimens, whereas a distinct band of fascia was noted overlying the first dorsal interosseous muscle in the remaining six.