Upper limb

Radiocarpal joint capsule

Capsula articularis radiocarpalis

Origin

Distal margins of the radius and TFCC articular disc

Insertion

Proximal articular surfaces of scaphoid, lunate, and triquetrum

Function

Encloses the radiocarpal synovial cavity; provides rich proprioceptive feedback for hand placement

Innervation

Anterior and posterior interosseous nerves (C6–C8)

Movement & chain

Accommodates wrist flexion, extension, radial and ulnar deviation

Palpation

Palpable on the dorsal wrist joint line

Clinical

Dorsal wrist ganglion cyst originating from capsule; radiocarpal arthritis (SLAC/SNAC wrist); rheumatoid synovitis.

Segmental innervation

C6–C8

In clinical practice

Manual joint distraction, wrist splinting, and aspiration of dorsal ganglion cysts

Region in the model

Upper limb