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Occipital condyle screws: indications and technique.
Aju Bosco1, Ilyas Aleem2, Frank La Marca3
1Assistant Professor in Orthopedics and Spine Surgery, Orthopedic Spine Surgery Unit, Institute of Orthopedics and Traumatology, Madras Medical College, Chennai, India.
Journal of Spine Surgery (Hong Kong)
|April 21, 2020
Summary
Occipitocervical instability requires stable surgical fixation. Direct occipital condyle screw (OCS) fixation offers a novel cephalad anchor option when standard occipital plate fixation is not feasible, though it has a steep learning curve.
Area of Science:
- Neurosurgery
- Orthopedic Surgery
- Spinal Surgery
Background:
- Occipitocervical instability is a severe condition requiring surgical stabilization.
- Current occipitocervical fixation primarily relies on occipital squama-based constructs.
- Limitations exist for occipital plate fixation in specific patient scenarios.
Purpose of the Study:
- To review the techniques of occipital condyle screw (OCS) fixation for occipitocervical stabilization.
- To describe the indications, biomechanical considerations, and surgical technique of OCS fixation.
- To outline the advantages and limitations of OCS-based occipitocervical fixation.
Main Methods:
- Review of existing literature on occipital condyle screw fixation techniques.
- Analysis of biomechanical and cadaveric studies evaluating OCS feasibility.
- Description of preoperative planning, surgical technique, and complication profiles.
Main Results:
- Occipital condyle screws (OCS) serve as feasible augmentative or salvage anchors.
- OCS fixation is a viable alternative when occipital plate fixation is contraindicated.
- The OCS placement technique presents a significant learning curve.
Conclusions:
- Direct occipital condyle screw fixation provides a novel approach to occipitocervical stabilization.
- OCS offers an alternative cephalad anchorage when standard methods fail or are not possible.
- Further understanding and training are crucial for successful OCS implementation.
