Modified Suzuki Frame Fixation for the Treatment of Dorsal Proximal Interphalangeal Joint Fracture-Dislocation.

Background: . Although these methods can be effective, they may have limitations in certain situations. The Suzuki frame, a pins-and-rubber-band traction system, offers a dynamic external fixation option that allows for early controlled motion while maintaining fracture reduction. This technique has several advantages, including ligamentotaxis (the traction force helps to reduce fracture fragments and restore joint alignment), early mobilization (the dynamic nature of the frame allows for early active motion, minimizing joint stiffness), and simplicity (the technique is relatively straightforward and can be performed with readily available materials). Description: The modified Suzuki frame procedure for dorsal PIP joint fracture-dislocation involves administering local anesthesia and establishing a sterile field. Under fluoroscopic guidance, three 1.0-mm Kirschner wires are inserted: 1 through the center of rotation of the proximal phalangeal head, 1 through the center of rotation of the middle phalangeal head, and 1 (the "translation pin") in the middle phalanx distal to the fracture. The wires are then bent to create a frame with hooks, and the translation pin is secured to the proximal wire. Rubber bands are applied between the hooks to provide traction and maintain reduction. PIP joint congruency is confirmed through a full range of motion under fluoroscopy. Dressings and a splint are applied, allowing for limited immediate postoperative motion. Formal hand therapy begins 1 week postoperatively. Alternatives: Although nonsurgical treatment may be considered for stable, minimally displaced dorsal PIP joint fracture-dislocations, unstable injuries often necessitate operative intervention to restore joint congruity and stability. Several surgical techniques are available to treat these injuries, each with its own advantages and limitations. These techniques include dorsal block pinning, ORIF, hemi-hamate or hemi-capitate arthroplasty, and the use of modified external fixators with various external fixation constructs and pins to provide stability and allow for early controlled motion. Rationale: . Expected Outcomes: . With appropriate care and diligent rehabilitation, patients can generally expect to regain satisfactory motion and function of the injured finger. Continuous monitoring and structured exercise programs are recommended to support optimal recovery outcomes. Important Tips: This technique is best suited for unstable dorsal PIP joint fracture-dislocations that are reducible with traction or translation.Accurate pin placement is crucial for optimal results. Utilize fluoroscopy to confirm pin position and avoid injury to the surrounding structures.Ensure adequate traction with the rubber bands to maintain fracture reduction and joint alignment.Utilize sharp, double-ended Kirschner wires of approximately 15 cm (6 in) and 23 cm (9 in).Bend the wires carefully to create secure hooks and avoid sharp edges that could irritate the skin.Maintain approximately 2.5 cm (1 in) between the proximal and distal hooks to ensure adequate stability.Pin-site infection is a potential complication. Emphasize proper pin care to patients.Kirschner wire migration or breakage can occur. Monitor pin sites regularly and address any issues promptly.Excessive traction can lead to distraction of the fracture or joint. Adjust the rubber bands as needed to maintain appropriate tension.Achieving and maintaining adequate reduction in complex fracture patterns can be challenging.Balancing stability and motion requires careful adjustment of the frame and rubber band tension.Patient compliance with pin care and rehabilitation protocols is essential for optimal outcomes. Acronyms and Abbreviations: K-wire = Kirschner wire.