J Neurol Surg A Cent Eur Neurosurg 2014; 75 - p31
DOI: 10.1055/s-0034-1383767

Is Surgical Resident Education Safe? Cohort Study on Complication Rates and Postoperative Outcome after Anterior Cervical Discectomy

M. N. Stienen 1, N. R. Smoll 2, H. Joswig 1, G. Hildebrandt 1, K. Schaller 2, O. P. Gautschi 2
  • 1Department of Neurosurgery, Kantonsspital St. Gallen, St. Gallen, Switzerland
  • 2Department of Neurosurgery and Faculty of Medicine, University Hospital of Geneva, Geneva, Switzerland

Aim: Previously, we were able to demonstrate that the early introduction of residents to microscopic lumbar disc surgery within a structured education program did neither harm the patient nor led to worse 1-year health-related quality of life and pain outcomes, compared with those of experienced board-certified faculty neurosurgeons (BCFN).1 It was our aim to analyze whether surgical education of residents was also safe for anterior cervical discectomy with or without fusion (ACD(F)).

Methods: Retrospective single-center cohort study on patients with full available data undergoing ACD(F)-surgery at the neurosurgical department of the Kantonsspital St. Gallen between 01/2011 - 08/2013. Study groups were built according to the status of the primary surgeon of the index surgery being either a) resident or b) BCFN.

Results: 203 patients were included, of which 55 (27.1%) were resident- and 148 (72.9%) were BCFN cases. Besides patients from the BCFN group being slightly older (mean 52.2 versus 56.5 years; p = 0.045), there were no differences in baseline- and surgery-related parameters. Intraoperative complications were equally low (1.81% (residents) versus 1.35% (BCFN); p = 1.00), wrong level exposure was documented in 5.4% and 3.4% of the procedures (p = 0.685). Resident surgeries were significantly longer (mean 130 versus 93 minute; p < 0.0001) and associated with higher estimated blood loss (80.1 versus 57.6 ml; p = 0.0019). Radiological outcome was regular in 100% of patients from both groups. Inpatient complication rates were similar and the length of hospitalization was virtually equal (4.8 versus 4.9 days; p = 0.932). After 4 weeks, 90.9% and 93.2% of patients had profited from the operation (p = 0.764), while more patients in the resident group reported persistent dysphagia at this time (25.5% versus 10.8%; p = 0.013). After a mean of 3 months postoperative, 85.5% and 89.2% of patients had profited from the operation (p = 0.626). 7.3% and 4.1% of patients had to undergo reoperation until the final follow-up for various reasons (mostly adjacent segment disease; p = 0.464).

Conclusion: Our results indicate that while resident surgeries take longer and are associated with slightly higher blood loss, complication rates and postoperative outcomes after ACD(F)-surgery are not worse when performed by residents-in-training and under careful supervision by experienced BCFN.

References

References

1 Stienen MN et al. Acta Neurochir 2014: online first