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Ligament Forearm

Radiocarpal Joint Capsule

capsula articularis radiocarpalis

The radiocarpal joint capsule is the fibrous sleeve enclosing the radiocarpal joint, reinforced by the palmar and dorsal radiocarpal ligaments. It extends from the distal radius to the proximal carpal row.

Region: Forearm
Biomechanics

Function & Actions

Encloses the radiocarpal joint, contains synovial fluid for lubrication, transmits load between the radius and proximal carpus, and is reinforced by the extrinsic carpal ligaments to provide constraint against carpal instability.

Clinical Relevance

Clinical Notes

Radiocarpal capsular tear in distal radius fractures requires assessment — associated capsular ligament injuries affect carpal alignment and stability. Radiocarpal capsulotomy is performed in dorsal and volar wrist approaches for carpal ligament reconstruction and carpal fracture fixation.

Pathology

Common Injuries & Conditions

Radiocarpal Capsule Injury in Distal Radius Fracture

Capsular ligament tear associated with distal radius fracture producing carpal malalignment, assessed intraoperatively and repaired when instability persists after radius fixation.

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