Swan Neck Deformity
For a swan neck deformity to occur, abnormal stress must be put on the ligament around the PIP joint of the finger. The stress causes the ligament to loosen, which then causes hyperextension of the PIP joint. As a result, the PIP joint bows in towards the palm. Non-surgical treatment includes the provision of an Oval 8 splint and re-training of the flexor and extensor mechanism of the finger in order to achieve a desired result. In some cases, corrective surgery is necessary.