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K = Ulnar impaction / TFCC tear L = ECU dislocation / tendonitis A = FCU tendonitis B = Pisiotriquetral arthritis / Ulnar nerve entrapment / ulnar artery

end of the radius, a bone in the forearm, and the proximal row of carpal bones. The carpal bones involved in this joint are the scaphoid, lunate, and triquetrum

as intrinsic (carpal to carpal) and extrinsic (radius or ulna to carpal). Intrinsic Ligaments The interosseous ligaments connect the carpal bones. ScaphoLunate

This page outlines the regional anaesthetic technique. For carpal tunnel syndrome see carpal tunnel injection. Useful for lacerations across multiple fingers/palm

Eight digital flexor tendons (two for each of the medial four fingers) Flexor pollicis longus (FPL) tendon for the thumb and their flexor synovial sheaths

ligaments. Muscles: flexor digitorum longus, flexor digitorum brevis, extensor digitorum longus, extensor digitorum brevis, flexor digiti minimi brevis

lost. The ulnar nerve is regarded as the hand’s power source for hand grasp. It innervates the muscles along the ulnar sphere, including the ulnar hand flexors

This type of joint is biaxial because it permits two axes of movement: flexion/extension and medial/lateral (abduction/adduction). An example is the metacarpophalangeal

when considering carpal fractures. Carpal dislocations can occur commonly in conjunction with carpal fractures. Fractures of some carpal bones usually occur

to the flexor carpi radialis (FCR) tendon. The FCU attaches to the pisiform. The distal wrist crease crosses the pisiform Injection for Carpal Tunnel Syndrome

Syndrome (nerve entrapment) D = Base of thumb arthritis E = Ulnar collateral ligament injury F = Carpal boss G = Scapholunate ligament tear H = Keinbock’s disease

trapezoid wrist bones. The STT joint may communicate with the rest of the mid-carpal articulation. In patients with inflammatory arthritis or osteoarthritis

both its radial and ulnar borders. While these are not involved in finger flexion, per se, because of their proximity to the flexor tendons, they may also

still missing information. Trigger finger and trigger thumb is also known as flexor tenosynovitis. It causes a painful clicking or locking of the affected digit

adequate resolution of symptoms, an ulnar shortening osteotomy (to create negative ulnar variance and in turn decrease ulnar load) may be needed. In cases with

scaphoid (also known as the carpal navicular) is perhaps the most important of the eight carpal bones. The scaphoid links the carpal bones closest to the radius

Pain Median Nerve Carpal Tunnel Syndrome Pronator Teres Syndrome Anterior Interosseous Nerve Syndrome Supracondylar Process Syndrome Ulnar Nerve Cubital Tunnel

joint between the trapezium (carpal) and the first metacarpal bone of the thumb. This arrangement permits the thumb to flex and extend (within the plane

injury (which is rare) Injury to the elbow Injury to the ulnar side of the wrist Injury to the carpal bones (The latter three should remind you of the rule

with the carpus and distally with the phalanges (Figure 1). From radial to ulnar, the bones are numbered one (thumb) through five (small finger) and consist