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Short-term comparison of cervical fusion with static and dynamic plating using computerized motion analysis.
Grigory Goldberg1, Todd J Albert, Alexander R Vaccaro
1Department of Orthopaedic Surgery, Thomas Jefferson University and the Rothman Institute, Philadelphia, PA 19107, USA.
Spine
|June 5, 2007
Summary
This study found similar fusion rates between static and dynamic cervical plates in anterior cervical discectomy and fusion surgeries. Successful fusions continued to develop throughout the first year post-operation.
Area of Science:
- Spine surgery
- Orthopedic biomechanics
- Fusion assessment
Background:
- Anterior cervical plating reduces pseudarthrosis rates.
- Static plates may be too rigid, potentially causing pseudarthrosis.
- Dynamic plates are a newer alternative to address rigidity issues.
Purpose of the Study:
- Compare fusion rates of static versus dynamic plates in two-level anterior cervical discectomy and fusion.
- Evaluate the efficacy of dynamic plates in preventing pseudarthrosis.
- Assess the role of plate rigidity in cervical fusion outcomes.
Main Methods:
- Retrospective review of patients undergoing two-level ACDF with static or dynamic plates.
- Computerized analysis of digitized films to assess fusion.
- Defined solid fusion as <2 degrees of motion.
Main Results:
- No statistically significant difference in fusion rates between static (76.2%) and dynamic (81.8%) plates.
- Fusion rates increased over the follow-up period for both groups.
- Dynamic plate group used allograft bone, static plate group used autograft.
Conclusions:
- Computerized analysis enhances accuracy in assessing cervical fusion.
- Dynamic and static plates demonstrate comparable fusion rates.
- Cervical fusion is an evolving process, continuing throughout the first year post-surgery.