| Boundaries: The
thenar space is shown as purple in the diagrams here. In the cross section,
the midpalmar space is blue, the radial
bursa is light blue and the ulnar bursa is
red.)
Clinical Significance:
The thenar space lies just superficial to the adductor
pollicis muscle, forming a plane connecting the deep aspects of the
radial
bursa and the ulnar bursa. Abscess or space
occupying lesions may spread transversely through the thenar space deep
in the palm between the thumb and the carpal
tunnel. An example of a thenar space abscess is shown here. |
