In-Office Pit Excision for Pilonidal Disease Using Needle-Free Local Anesthesia: A Minimally Invasive, Non-Operative Treatment Approach.

Abstract

Introduction: Treatment of pilonidal disease traditionally involves an operation under general anesthesia, which may have a period of postoperative disability and a significant recurrence rate. We report a novel treatment for pilonidal disease performed in-office using a pneumatic lidocaine injection device, requiring no pain medication or activity restrictions-supporting a non-operative standard of care.

Methods: Patients with gluteal crease pits at our Pilonidal Care Clinic were offered pit excision as standard care. Prospective data on demographics, pain scores (0-10), and outcomes were collected in REDCap. Under sterile conditions, patients received 1% buffered lidocaine via pneumatic injection. Laser follicle ablation was followed by punch excision (1.5 or 2 mm) of full-thickness pit epithelium. Sinus tracts were probed but not excised. Patients were asked to wash the area twice daily, maintain normal activities, and return in 6 to 8 weeks. Patients requiring nidus incision and drainage (I&D) were excluded.

Results: About 130 patients underwent this technique between February and June 2024; 100 were included in the analysis (5 excluded for concurrent I&D, 25 lost to follow-up). Mean age was 18.1 years; 50% were male. At subsequent follow-up, 60% patients healed all pits, resolving their condition, with 64% (144/224) of all pits healed. Patients with three or more pits were more likely to need an additional pit excision. Mean procedure pain score was 1.6/10 (SD 1.21); no patient used pain medication or experienced disability. Ultimately, 88% of patients healed all of their pits.

Conclusion: Pilonidal disease may be resolved non-operatively in a single outpatient clinic visit, without even a shot.