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12Pitfalls

Pitfalls

The same principles apply to interlocking screws.
When inserting interlocking screws, great care should be taken to prevent damage to neurovascular structures. An example is the posterior interosseous nerve at the proximal part of the radius.
Proximal interlocking screws in the radius may endanger this nerve. A skin incision is made and then progressively deepened by spreading a forceps and advancing the retractors layer by layer until the bone is reached.
 In distal locking of the radius using screws, the dorsal branch of the superficial radial nerve may be at risk. Therefore, a large enough incision, developed as above and with an adequate bone exposure is mandatory prior to screw insertion.