Surgery for Degenerative Cervical Myelopathy: What Really Counts?
Oliver Gembruch1, Ramazan Jabbarli1, Ali Rashidi1,2
1Department of Neurosurgery, University Hospital Essen, University of Duisburg-Essen, Essen, Germany.
Spine
|October 16, 2020
Summary
Surgery for degenerative cervical myelopathy (DCM) improves function. Younger patients with fewer comorbidities and no MRI signs of myelopathy achieve better outcomes. Early surgical intervention is crucial for optimal results.
Area of Science:
- Neurosurgery
- Orthopedic Surgery
- Neurology
Background:
- Degenerative cervical myelopathy (DCM) causes progressive neurological deficits.
- Optimal surgical timing for DCM, especially mild cases, remains unclear.
- Understanding factors influencing surgical outcomes is critical for patient management.
Purpose of the Study:
- To evaluate the impact of patient demographics, comorbidities, and MRI findings on surgical outcomes in DCM.
- To identify predictors of postoperative functional improvement in patients undergoing DCM surgery.
Main Methods:
- Retrospective analysis of 411 patients with DCM treated between 2007 and 2016.
- Assessment of neurological function using the modified Japanese Orthopaedic Association (mJOA) Score and minimum clinically important difference (MCID).
- Statistical analysis, including univariate and multivariate regression, to correlate age, Charlson Comorbidity Index (CCI), and T2-weighted MRI signal intensity (SI) with outcomes.
Main Results:
- Older age, higher CCI, and presence of high T2-weighted MRI SI were independently associated with lower mJOA scores and MCID.
- Subgroup analysis confirmed age and high T2-weighted MRI SI as predictors of neurological function.
- Symptom duration did not significantly impact neurological outcomes based on DCM severity.
Conclusions:
- DCM surgery significantly improves functional outcomes.
- Younger patients, those with lower CCI, and absence of radiographic myelopathy signs experience better results.
- Timely surgical intervention, especially before the development of high T2-weighted MRI SI, is essential for maximizing postoperative functional improvement.
