| There are many methods to fuse interphalangeal joints. In this case, a Herbert screw was used for arthrodesis fixation of an unstable thumb interphalangeal joint. This case also demonstrates the eponychial splitting approach to the joint. |
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| Unstable IP joint with a nodule on the exposed prominence of the proximal phalangeal head. |
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| Eponychial splitting incision allows access to the nodule, direct exposure of the neurovascular bundle and tailoring any skin excess. |
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| Herbert screw fixation seems most solid if leading threads are in the narrowest segment - the phalangeal neck. |
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| About three months after surgery, comparing with the other thumb which has not had surgery. |
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interphalangeal arthrodesis herbert screw arthrodesis |
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