Managing Severe Postburn Wrist Flexion Contracture by Proximal Row Carpectomy and Abdominal Interpolation Flap.

Introduction: Postburn upper extremity contractures can greatly diminish the quality of life. To successfully manage these contractures and achieve successful functional outcomes, an optimal surgical method should be planned to address all affected tissues on the extremities. Conventional soft tissue transfers after releasing the contracture, such as skin grafts or flaps, may be insufficient. In addition to capsulotomy, tendon release, and lengthening procedures, more aggressive modalities may be indicated. Methods: In this retrospective study, patients who developed wrist flexion deformities due to burn injuries and underwent proximal row carpectomy and abdominal interpolation flaps were included. Results: Between January 2019 and June 2020, 5 patients underwent surgery using this technique. All patients were male, 2 had thermal burns, 2 had electrical burns, and 1 had chemical burns. Preoperatively, all patients had severe flexion deformities ranging from 70° to 85°. There were no postoperative complications, and stable wrists with a good and functional alignment were achieved, although the preoperative and postoperative range of motion differences were limited, where a postoperative range of motions were ranging from 5 to 15 in terms of extension, 15 to 20 in terms of flexion. Preoperative QuickDash scores were between 79.5 and 95.5, postoperative scores ranged from 25 to 36.4. Conclusion Proximal row carpectomy shortens the length of the wrist, resurfaces the wrist joint, and provides a release in tendons and other soft tissues. Together with soft tissue transfer, this technique can be used for severe wrist flexion contractures.