Design and Implementation of an Enhanced Recovery After Surgery (ERAS) Protocol in Elective Lumbar Spine Fusion by Posterior Approach: A Retrospective, Comparative Study


Study design:

Retrospective, comparative.


Objective:

i) To design an enhanced recovery after surgery (ERAS) protocol for elective lumbar spine fusion by posterior approach, ii) To compare the results after ERAS implementation in patients undergoing elective lumbar spine fusion with conventional perioperative care SUMMARY OF BACKGROUND DATA.: Despite wide adoption in other surgical disciplines, ERAS has only been recently implemented in spine surgery. The integrated multidisciplinary approach of ERAS aims to reduce surgical stress to achieve better outcomes.


Methods:

Hospital records of adult patients who underwent 1- to 3-level elective lumbar spine fusion by posterior approach at a single centre were retrospectively studied. An ERAS protocol was designed based on the prevalent hospital practices, local resources and supportive evidence from literature. The ERAS protocol was implemented at our institute in December 2016 – dividing patients into pre-ERAS and post-ERAS groups. The outcome measures for comparison were: length of hospital stay (LOS), postoperative complications, 60-day readmission rate, 60-day reoperation rate and patient reported outcome measures (VAS and ODI score) at stipulated time intervals.


Results:

A total of 812 patients were included – 496 in the pre-ERAS group and 316 in the post-ERAS group. There was no significant difference between the two groups in baseline demographic, clinical and surgery-related variables. Patients in the post-ERAS group had a significantly shorter LOS (2.94 days v/s 3.68 days). The rate of postoperative complications (13.5% v/s 11.7%), 60-day readmission (1.8% v/s 2.2%) and 60-day reoperation (1.2% v/s 1.3%) did not differ significantly between the pre-ERAS and post-ERAS groups. The VAS and ODI scores, similar at baseline – were significantly lower in the post-ERAS group (VAS: 49.8 ± 12.0 v/s 44 ± 10.8, ODI: 31.6 ± 14.2 v/s 28 ± 12.8) at 4 weeks after surgery. This difference however was not significant at intermediate term follow up (6 months and 12 months).


Conclusion:

Implementation of an ERAS protocol is feasible for elective lumbar spine fusion, and leads to shorter LOS and improved early pain and functional outcome scores.


Level of evidence:

3.

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