Conjoined Lateral Bands Anatomy

Description

• The lateral bands are the distal extension of the tendons of the intrinsic muscles which include the dorsal interossei, palmar interossei and lumbrical muscles. 
• The interossei are part of the conjoined lateral band on the radial and ulnar side of the finger.
• The lumbrical are only part of the radial conjoined lateral band.
• The interossei are part of the conjoined lateral band on the radial and ulnar side of the finger.
• These tendinous extensions pass below the axis of motion of the MP joints and dorsal to to axis of motion of the PIP and DIP joints.