PMID- 37373901 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20230701 IS - 2075-4426 (Print) IS - 2075-4426 (Electronic) IS - 2075-4426 (Linking) VI - 13 IP - 6 DP - 2023 May 30 TI - Microendoscopic Surgery for Degenerative Disorders of the Cervical and Lumbar Spine: The Influence of the Tubular Workspace on Instrument Angulation, Clinical Outcome, Complications, and Reoperation Rates. LID - 10.3390/jpm13060912 [doi] LID - 912 AB - BACKGROUND: Long-term clinical outcomes with microendoscopic spine surgery (MESS) are poorly investigated. The effect of instrument angulation on clinical outcomes has yet to be assessed. METHODS: A total of 229 consecutive patients operated on via two MESS systems were analyzed. Instrument angulation for both MESS systems, which differ from each other regarding the working space for instruments, was assessed using a computer model. Patients' charts and endoscopic video recordings were reviewed to determine clinical outcomes, complications, and revision surgery rates. At a minimum follow-up of two years, clinical outcomes were assessed employing the Neck Disability Index (NDI) and Oswestry Disability Index (ODI). RESULTS: A total of 52 posterior cervical foraminotomies (PCF) and 177 lumbar decompression procedures were performed. The mean follow-up was six years (range 2-9 years). At the final follow-up, 69% of cervical and 76% of lumbar patients had no radicular pain. The mean NDI was 10%, and the mean ODI was 12%. PCF resulted in excellent clinical outcomes in 80% of cases and 87% of lumbar procedures. Recurrent disc herniations occurred in 7.7% of patients. The surgical time and repeated procedure rate were significantly lower for the MESS system with increased working space, whereas the clinical outcome and rate of complication were similar. CONCLUSIONS: MESS achieves high success rates for treating degenerative spinal disorders in the long term. Increased instrument angulation improves access to the compressive pathology and lowers the surgical time and repeated procedure rate. FAU - Oertel, Joachim M AU - Oertel JM AD - Klinik fur Neurochirurgie, Universitat des Saarlandes, Kirrbergerstrasse 100, 66421 Homburg-Saar, Germany. FAU - Burkhardt, Benedikt W AU - Burkhardt BW AD - Wirbelsaulenzentrum/Spine Center-WSC, Klinik Hirslanden, Witellikerstrasse 40, 8032 Zurich, Switzerland. LA - eng PT - Journal Article DEP - 20230530 PL - Switzerland TA - J Pers Med JT - Journal of personalized medicine JID - 101602269 PMC - PMC10305584 OTO - NOTNLM OT - cervical spine OT - clinical outcome OT - complication OT - degenerative disc disease OT - endoscopy OT - instrument angulation OT - lumbar spine OT - microendoscopic OT - reoperation COIS- J.M.O. is a consultant, holds patents of the EasyGO system, and received a speaker honorarium for education from the Karl Storz Company without the influence of the study results. B.W.B. has nothing to disclose. EDAT- 2023/06/28 06:42 MHDA- 2023/06/28 06:43 PMCR- 2023/05/30 CRDT- 2023/06/28 01:23 PHST- 2023/04/12 00:00 [received] PHST- 2023/05/19 00:00 [revised] PHST- 2023/05/26 00:00 [accepted] PHST- 2023/06/28 06:43 [medline] PHST- 2023/06/28 06:42 [pubmed] PHST- 2023/06/28 01:23 [entrez] PHST- 2023/05/30 00:00 [pmc-release] AID - jpm13060912 [pii] AID - jpm-13-00912 [pii] AID - 10.3390/jpm13060912 [doi] PST - epublish SO - J Pers Med. 2023 May 30;13(6):912. doi: 10.3390/jpm13060912.