Applying a dorsal slab to the forearm that extends over the dorsum of the metacarpophalangeal joints may cause pressure to those joints, with resultant skin breakdown and erosion extending into the joints. I prefer a volar slab.If one attempts to immobilise the metacarpophalangeal joints in 90deg of flexion, the joints may end up in a position of lesser flexion such as 70deg, which will be acceptable. However, if one attempts to immobilise the metacarpophalangeal joints at 70deg, they may end up at 50 or less, which is not acceptable. When the metacarpophalangeal joints are immobilised in minimal flexion, or extension, the collateral ligaments will be lax and may develop contractures. Contractures may cause fixed flexion deformities of the joints, which can markedly impair hand function and strength. This may be litigious.
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