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allow the volarly displaced lateral bands to relax. If the joint does not reduce with this maneuver, there is soft tissue interposition of a collateral ligament or central slip.

Once the joint has been reduced, a radiograph should be taken to confirm joint congruity. Again, the integrity of the collateral ligaments should be tested as previously described. The patient should be asked to actively extend the digit with the finger still anesthetized. These patients generally have full active extension because the contralateral lateral band and a portion of the central slip remain intact. If the joint is stable after reduction and the PIP joint can be actively extended, the joint should be splinted for 7 to 10 days and then buddy taped to protect the collateral ligament. The patient should begin active range-of-motion exercises. If the joint cannot be reduced or there is incongruity after reduction, open reduction is necessary.

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