Title | Comparison of Long-term Differences in Dysphagia: Cervical Arthroplasty and Anterior Cervical Fusion. |
Publication Type | Journal Article |
Year of Publication | 2017 |
Authors | Smucker JD, Bassuener SR, Sasso RC, K Riew D |
Journal | Clin Spine Surg |
Volume | 30 |
Issue | 8 |
Pagination | E1160-E1164 |
Date Published | 2017 Oct |
ISSN | 2380-0194 |
Keywords | Adult, Arthroplasty, Cervical Vertebrae, Deglutition Disorders, Demography, Female, Humans, Male, Middle Aged, Postoperative Complications, Spinal Fusion, Surveys and Questionnaires, Treatment Outcome |
Abstract | STUDY DESIGN: Retrospective cohort study. OBJECTIVE: This study investigates the incidence of long-term dysphagia in cervical disc arthroplasty, and anterior cervical discectomy and fusion (ACDF) patients. SUMMARY OF BACKGROUND DATA: No long-term comparison of dysphagia between cervical arthroplasty and fusion patients has been published. Widely variable short-term postsurgical dysphagia rates have been reported. MATERIALS AND METHODS: Cohorts for this study are patients with single-level cervical degenerative disc disease previously enrolled in a randomized clinical trial comparing cervical arthroplasty and ACDF. Subjective modified Bazaz Dysphagia Severity questionnaires were distributed to each patient at a minimum of 5 years postoperative for the long-term assessment. Dysphagia severity data were pooled to compare the rate of patients with dysphagia (grade>1) to asymptomatic (grade=1). RESULTS: In the arthroplasty cohort, 15 of 22 (68%) patients completed long-term swallowing questionnaires with no reports of dysphagia. Eighteen of 25 (72%) ACDF patients completed questionnaires, with 5 of 18 (28%) reporting dysphagia. This is a statistically significant difference (P=0.042) favoring lower rates of long-term dysphagia after cervical arthroplasty at an average interval of 7 years postoperative (range, 5.5-8.5 y). No significant difference between rates of self-reported short-term dysphagia was noted with 12% (3/25) and 9% (2/22) in the ACDF and arthroplasty groups, respectively (P=0.56). All short-term dysphagia cases in the arthroplasty cohort reported complete resolution of symptoms within 12 months postoperative. In the ACDF cohort, persistent symptoms at 7 years were noted in all responding patients. Three ACDF patients reported new late-onset, which was not noted in the arthroplasty cohort. CONCLUSIONS: To date, these findings represent the longest reported follow-up interval comparing rates of dysphagia between randomized cohorts of cervical arthroplasty and fusion patients. Our study suggests that cervical arthroplasty is less likely than ACDF to cause sustained long-term or late-presenting dysphagia. |
DOI | 10.1097/BSD.0000000000000401 |
Alternate Journal | Clin Spine Surg |
PubMed ID | 27352373 |