Study design:
Retrospective cohort study
Objective:
To investigate the impact of long symptom duration (>24 mo) on patient self-reported outcomes for pain, function, and quality of life following anterior cervical discectomy and fusion (ACDF) for cervical radiculopathy.
Summary of Background Data:
ACDF is an effective treatment to relieve symptoms of cervical radiculopathy. However, there is no consensus on whether prolonged preoperative length of symptoms negatively impacts postoperative outcomes.
Methods:
This study included consecutive patients who underwent ACDF for cervical radiculopathy from May 1, 2012, to Dec 1, 2019 by a single surgeon. Patients were stratified by short (<= 24 mo) and long (>24 mo) duration of symptoms. Outcomes including Visual Analog Scale (VAS) neck and arm, Neck Disability Index (NDI), EuroQol-5D (EQ-5D) and Overall State of Health (EQ-VAS) were compared between cohort both for absolute values and percentage of patients achieving minimal clinically important difference (MCID).
Results:
111 consecutive patients were included in our study, including 59 patients in the short symptom duration group and 52 patients in the long symptom duration group. The mean age of the patients was 51.4 ± 9.4 and 41 (36.9%) were female. The baseline VAS neck and arm, NDI, EQ-5D and EQ-VAS were similar between groups. Patients in both long and short symptom duration groups had clinical improvement following surgery. However, patients with short symptom duration had better VAS Neck and EQ-5D outcomes, and were more likely to meet MCID for NDI, EQ-5D or any outcome. Multivariate analysis confirmed symptom duration <24 months as an independent predictor for better patient-reported outcomes.
Conclusion:
We demonstrate better clinical outcomes in patients undergoing ACDF for cervical radiculopathy with shorter symptom duration. Based on this data, we would advocate for prompt treatment of cervical radiculopathy to avoid long-term impairment.
Level of evidence:
III