ArticleFuture science OA2025
Unexpected retention of a spinal needle in a morbidly obese patient: a case report and technical reflection.
Article in Future science OA, 2025. 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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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Authors and funding
6 authors.
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No grant is acknowledged in the PubMed record.
Abstract
Spinal anesthesia is considered a safe and effective anesthetic technique. However, some complications may be encountered in clinical settings such as needle fracture or retention, which is a rare but serious complication. Morbid obesity is a recognized risk factor for such technical difficulties due to increased tissue depth and altered anatomical landmarks. A 19-year-old male (BMI > 40) presented for elective umbilical hernia repair. Spinal anesthesia was attempted using a 25 G Vygon needle (120 mm). During the successful puncture, the patient suddenly hyperextended his back. On attempted needle withdrawal and redirection, only the introducer was retrieved; the spinal needle was retained subcutaneously. Surgical removal via a 10 mm incision at 6 cm depth was successful. Multiple factors contributed: morbid obesity, sudden patient movement, weak contact between introducer and needle, and potentially defective equipment. This case underscores the need for vigilance, appropriate equipment, and immediate multidisciplinary management.
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