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Intraoperative and Postoperative Management of Incidental Durotomies During Open Degenerative Lumbar Spine Surgery: A
Arya A Ahmady1, Bilal B Butt, Stefano Muscateli
1Department of Orthopedic Surgery, University of Michigan, Ann Arbor, MI.
Summary Of Background Data:
Incidental durotomy is a common intraoperative complication of lumbar spine surgery. Intra and postoperative protocols in the management of this common complication vary considerably, with no consensus in the literature.
Objective:
To systematically review (1) lumbar dural repair techniques for open degenerative procedures; (2) review described postoperative protocols after lumbar dural repairs.
Study Design:
Systematic review.
Materials And Methods:
A systematic review of the literature was performed for all articles published from inception until September 2022 using Pubmed, EMBASE, Medline, and Cochrane databases to identify articles assessing the management of durotomy in open surgery for degenerative diseases of the lumbar spine. Two independent reviewers assessed the articles for inclusion criteria, and disagreements were resolved by consensus. Outcomes included persistent leaks, return to the operating room, recurrent symptoms, medical complications, or patient satisfaction.
Results:
A total of 10,227 articles were initially screened. After inclusion criteria were applied, 9 studies were included (n=1270 patients) for final review. Repair techniques included; no primary repair, suture repair in running or interrupted manner with or without adjunctive sealants, sealants alone, or patch repair with muscle, fat, epidural blood patch, or synthetic graft. Postoperative protocols included the placement of a subfascial drain with varying durations of bed rest. Notable findings included no benefit of prolonged bedrest compared with early ambulation ( P =0.4), reduced cerebrospinal fluid leakage with fat graft compared with muscle grafts ( P <0.001), and decreased rates of revision surgery in studies that used subfascial drains (1.7%-2.2% vs 4.34%-6.66%).
Conclusions:
Significant variability in intraoperative durotomy repair techniques and postoperative protocols exists. Primary repair with fat graft augmentation seems to have the highest success rate. Postoperatively, the use of a subfascial drain with early ambulation reduces the risk of pseudomenignocele formation, medical complications, and return to the operating room. Further research should focus on prospective studies with the goal to standardize repair techniques and postoperative protocols.
