Abstract
The hemi-hamate arthroplasty for proximal interphalangeal joint (PIPJ) dorsal fracture dislocations relies on complete dislocation of the joint using the 'shotgun' approach which provides excellent exposure but damages the delicate intrinsic joint stabilisers. We present a new approach to the PIPJ when performing the hemi-hamate arthroplasty. The volar surgical approach involves freeing up the whole tendon sheath-periosteal unit as a single layer, and retracting this to one side. The articular surface of the joint can then be accessed with a little distraction and hyperextension. The method does not breach the tendon sheath, nor does it damage the collateral ligaments or volar plate. It is akin to the radical total anterior teno-arthrolysis (TATA) technique used for contracted joints, with some crucial differences. We postulate that the new approach causes far less iatrogenic damage and reduces the risk of contractures developing, and in chronic cases, allows concurrent joint release.
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