Dr. Kevin Yip

Dr Kevin Yip
Orthopaedic Surgeon
MBBS(UK), FRCS(EDIN), FAM(SING), FHKCOS(ORTHO)

Featured on Channel NewsAsia

Resisted flexion of the wrist

Positioning.

The subject stands with the arm hanging, the elbow extended and the wrist in neutral position (between pronation and supination,and between flexion and extension). The examiner stands level with the subject’s elbow.
The contralateral arm lifts and carries the elbow and keeps it extended. The hand stabilizes the forearm. The other hand is placed at the palm of
the subject’s hand.

Procedure.
Resist the subject’s attempt to flex the wrist.

Common mistakes:

• The subject is allowed to push the arm down.

If this happens it is the result of inadequate fixation.

• The wrist is not held in neutral position, which puts stress on non-contractile structures.

Anatomical structures tested:

Muscle function:

• III/portallt wrist flexors:
– Flexor digitorum superficialis
– Flexor digitorum profundus
– Flexor carpi ulnaris
– Flexor carpi radialis
• Less importallt wrist flexors:
– Abductor pollicis longus
– Palmaris longus.

Common pathological situations:

• Pain at the elbow occurs in golfer’s elbow – a lesion in the common flexor tendon.
• Weakness suggests a C7 or C8 nerve root lesion.

Comments are closed.