__The_Manual_of_Trigger_Point_and_Myofascial_Therapy

154 Part B ADDUCTOR POLLICIS ORIGIN Lateral border of the third metacarpal. INSERTION Base of the proximal phalanx. RPP Radial and palmar aspects of the thumb. TP Web space. Pincer palpation from the palmar and volar surfaces. MFS Thumb abduction; you may try both palmar and radial abduction. PSS Pain at the first metacarpophalangeal joint. HEP As MFS above with the patient using the other thumb and fingers to facilitate stretch. BIOMECHANICS OF INJURY See abductor pollicis brevis. CLINICAL NOTES All thenar muscles may participate in a \"trigger thumb\" condition. Make sure the palpation is on the adducror pollicis and not on the first dorsal interosseous.

Upper Extremity Region 155 TRIGGER POINT THERAPY Pincer palpation is on the adductor pollicis and not on the first dorsal interosseous. MYOFASCIAL STRETCHES HOME EXERCISE PROGRAM

156 Part B OPPONENS POLLICIS r.;t;':�Fl-r irst metacarpophalangeal joint Carpometacarpal joint Trapezium �rl-- Flexor retinaculum ORIGIN Tubercle of the trapezium and flexor retinaculum. INSERTION First metacarpal. RPP Areas of origin and insertion of the muscle. TP Midpoint of a line drawn between the radial aspect of the carpometacarpal and MP-l joints. MFS Same as flexor pollicis brevis. PSS Pain at the first metacarpophalangeal joint. HEP As MFS above with the patient using the other thumb and fingers to facilitate stretch. BIOMECHANICS OF INJURY See abductor pollicis brevis. CLINICAL NOTES All thenar muscles may participate in a \"trigger thumb\" condition.