Bone and Nerve Response to Sciatic Compression Neuropathy in a Rabbit Model.

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Abstract

[Indexed for MEDLINE] 11. J Hand Surg Am. 2020 Jan;45(1):26-32. doi: 10.1016/j.jhsa.2019.07.011. Epub 2019 Oct 12. Associations Between Insurance Type and the Presentation of Cubital Tunnel Syndrome. Cheng C(1), Rodner CM(2). Author information: (1)Department of Orthopedic Surgery, University of Connecticut Health Center, Farmington, CT. (2)Department of Orthopedic Surgery, University of Connecticut Health Center, Farmington, CT. Electronic address: rodner@uchc.edu. PURPOSE: In the setting of cubital tunnel syndrome (CuTS), delays in diagnosis can have permanent effects including sensory loss, muscle weakness, and atrophy of intrinsic hand muscles. This study sought to evaluate the association of insurance type on the severity of CuTS. We hypothesized that publicly insured patients will have delayed presentation to the orthopedics office and more significant condition severity. METHODS: A retrospective chart review was conducted for all patients evaluated for CuTS between December 2013 and January 2018 by a fellowship-trained orthopedic hand and upper extremity surgeon at our tertiary referral center. Insurance type, demographics, and measures of CuTS severity were compared. RESULTS: Patients presenting with CuTS of severity greater than or equal to McGowan stage 2A had 4.4-fold greater odds of being publicly insured than privately. Motor and sensory velocities across the elbow were diminished at 42.2 ± 13.9m/s and 33.0 ± 20.8m/s in publicly insured patients compared with 47.5 ± 11.3 m/s and 47.0 ± 16.4m/s for privately insured patients. The same trend was present for motor and sensory amplitudes at 6.6 ± 3.8 μV and 16.9 ± 17.8 μV in publicly insured patients compared with 8.5 ± 3.2 μV and 26.0 ± 18.9 μV in privately insured patients. Patients with public insurance were symptomatic for longer prior to their initial visit, on average 82.8 ± 86.5 weeks, compared with 42.4 ± 58.9 weeks for patients with private insurance. CONCLUSIONS: Publicly insured patients were significantly delayed in seeing an orthopedic surgeon for evaluation and treatment of CuTS and presented with more severe clinical and electrodiagnostic findings compared with privately insured patients. These findings suggest that insurance type, among other socioeconomic factors, may be a barrier to CuTS care. TYPE OF STUDY/LEVEL OF EVIDENCE: Prevalence IV. Copyright © 2020 American Society for Surgery of the Hand. Published by Elsevier Inc. All rights reserved. DOI: 10.1016/j.jhsa.2019.07.011