ArticleJournal of neurological surgery. Part B, Skull base2026
Modified Dandy Stair-Step Incision for Retrosigmoid Craniotomies to Reduce Postoperative Complications in Skull Base Surgery.
Article in Journal of neurological surgery. Part B, Skull base, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Background: Retrosigmoid craniotomies are prone to postoperative complications, including wound complications, necessitating careful surgical closure. A modified Dandy stair-step technique was developed to address these concerns by ensuring a watertight seal, preserving the blood supply, sparing the muscles, and approximating the wound layers precisely under a cranial flap. Methods: A retrospective chart review was conducted on patients undergoing retrosigmoid craniotomies at a single institution from 2019 onward. Patients with prior craniotomies or less than 1 month of follow-up were excluded. Results: Among 73 patients, 29 (39.7%) underwent the modified Dandy technique. Baseline characteristics were similar between the two groups, with 41 of them being female (56.2%), the median age being 59 (interquartile range [IQR]: 50-67), and 44 having never smoked (60.3%). The most common indications for surgery were vestibular schwannomas (53.4%), meningiomas (24.7%), and metastatic lesions (15.1%), while the rest were other lesions (6.8%). In the modified and control groups, the follow-up duration was 8.9 months (IQR: 5-10.6) and 15.9 months (IQR: 8-23.9; Discussion: This study suggests that the modified technique may reduce wound-related complications following retrosigmoid craniotomies, though further research is required to confirm its efficacy.
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