Right Thenar Compartment Anatomy

Right Thenar Compartment Anatomy

Question 1. Write a short note on the near space.
Answer.

Thenar space is a triangular space located under the outer half of the hollow of the palm.

Thenar Space Boundaries

Anterior:

Flexor tendons of index finger, 1st lumbrical and palmar aponeurosis.

Posterior:

Fascia covering the transverse head of the adductor pollicis and the 1st dorsal interosseous muscle.

Medial:

The oblique intermediate palmar septum separates it from the midpalmar space.

Lateral:

Lateral palmar septum extending from palmar aponeurosis to 1st metacarpal.

Right Thenar Compartment Anatomy

Proximally:

It is continuous with Parona’s space.

Distally:

Extends around the 1st lumbrical (1st lumbrical canal) to the 1st web space.

Anatomy of Right Thenar Compartment

Thenar space Applied anatomy

Primary infection to thenar space occurs through puncture wounds. Secondary infection may be due to infection spreading from digital synovial sheath of index finger. This space can be drained by an incision in the 1st web space or where the pus points.