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Purpose: Proximal phalangeal bone fractures with displacement are treated using operative procedures. These fractures can cause stiffness of the interphalangeal or metacarpophalangeal joints, which can be relieved using various operative and nonoperative techniques. This study analyzed the range of motion (ROM) and pain after a combination therapy to treat finger stiffness following proximal phalangeal fractures.Methods: Fifty-two patients who underwent operative procedures for proximal phalangeal fractures and showed finger stiffness from March 2015 to January 2021 were included in this retrospective study. The patients in group 1 (n=24) performed elastic resistance exercises, while those in group 2 (n=28) underwent conventional exercise. ROM and pain score were measured at 5, 8, and 12 weeks postoperatively. Furthermore, a patient with a swan-neck deformity and intractable stiffness was treated using partial translocation of the extensor apparatus, and the postoperative outcome is presented.Results: Group 1 showed a larger ROM and less pain than group 2 at 12 weeks postoperatively (p&lt;0.05). Patients in both groups exhibited notable improvements with regard to ROM and pain during the study period (p&lt;0.05). In addition, the swan-neck deformity accompanying hyperextension of the proximal interphalangeal joint was significantly relieved.Conclusion: Proximal phalangeal bone fractures can lead to stiffness of the interphalangeal and metacarpophalangeal joints. Joint stiffness was relieved using an elastic resistance exercise protocol in the early postoperative period. Intractable stiffness showing a fixed joint angle can be treated with thorough tenolysis and corrective surgery.

Treatment of Phalangeal Joint Stiffness Related to Proximal Phalangeal Bone Fractures: Therapeutic Effects on the Range of Motion and Finger Pain