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AFIS-CL technique: A posterior reduction method enabling three-dimensional control in vertically unstable pelvic ring
Jaewoong Um1, HoeJeong Chung2, SeungRyeol Park2
1Department of Orthopaedic Surgery, Wonju Severance Christian Hospital, Yonsei University Wonju College of Medicine, Wonju, South Korea; Division of Trauma, Level 1 Trauma Center, Wonju Severance Christian Hospital, Wonju, South Korea.
Accurate reduction of pelvic ring injuries is difficult. The Anchored-Free Inter-Screw with Cobb Leverage (AFIS-CL) technique offers a reproducible posterior approach for precise hemipelvic reduction and stable fixation.
Area of Science:
- Orthopedic Surgery
- Trauma Surgery
- Pelvic Reconstruction
Background:
- Vertically unstable posterior pelvic ring injuries present significant reduction challenges.
- Current techniques often require skeletal traction or complex approaches.
- Accurate reduction is crucial for restoring pelvic stability and function.
Purpose of the Study:
- To describe and evaluate the Anchored-Free Inter-Screw with Cobb Leverage (AFIS-CL) technique for pelvic ring injury reduction.
- To assess the reproducibility and efficacy of the AFIS-CL technique in achieving and maintaining reduction.
- To provide a novel posterior approach for complex pelvic fractures.
Main Methods:
- The Anchored-Free Inter-Screw with Cobb Leverage (AFIS-CL) technique was developed.
- This technique involves an anchored reference screw, a free screw, a Jungbluth clamp, and Cobb's elevator.
- Reduction is performed via a posterior approach without skeletal traction, with fluoroscopic guidance.
Main Results:
- The AFIS-CL technique was successfully applied in five patients.
- Satisfactory radiographic reduction was achieved and maintained in all cases.
- No neurovascular complications or secondary displacement were observed postoperatively.
Conclusions:
- The AFIS-CL technique is a practical and reproducible method for posterior pelvic ring reduction.
- It facilitates three-dimensional correction and stable maintenance of reduction in unstable pelvic injuries.
- This technique offers a valuable alternative for managing complex pelvic fractures.
