The most common site of ulnar nerve compression is within the cubital tunnel. Surgery has historically involved an open cubital tunnel release with or without transposition of the nerve. A comparative study has demonstrated that endoscopic decompression is as effective as open decompression and has the advantages of being less invasive, utilizing a smaller incision, producing less local symptoms, causing less vascular insult to the nerve, and resulting in faster recovery for the patient. Ulnar nerve transposition is indicated with symptomatic ulnar nerve instability or if the ulnar nerve is located in a "hostile bed" (eg, osteophytes, scarring, ganglions, etc.). Transposition has previously been performed as an open procedure. The authors describe a technique of endoscopic ulnar nerve release and transposition. Extra portals are used to allow retractors to be inserted, the medial intermuscular septum to be excised, cautery to be used, and a tape to control the position of the nerve. In our experience this minimally invasive technique provides good early outcomes. This report details the indications, contraindications, surgical technique, and rehabilitation of the endoscopic ulnar nerve release and transposition.
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http://dx.doi.org/10.1097/BTH.0000000000000030 | DOI Listing |
J Hand Surg Am
January 2025
Division of Plastic and Reconstructive Surgery, Department of Surgery, University of Florida, Gainesville, FL.
Purpose: The branching pattern of the deep motor branch of the ulnar nerve (DBUN) in the hand is complex. The anatomy of the motor branch innervating the fourth lumbrical (4L), where paralysis results in a claw hand deformity after ulnar nerve injury, is not well defined. This cadaver study focused on mapping and defining anatomical landmarks in relation to the motor branch to the 4L.
View Article and Find Full Text PDFJ Hand Surg Am
January 2025
Department of Orthopaedic Surgery, Duke University School of Medicine, Durham, NC. Electronic address:
Purpose: Our goal was to determine the association between the severity of electrodiagnostic (EDX) studies with the cross-sectional area (CSA) of the ulnar nerve at the cubital tunnel using diagnostic ultrasound. Based on our clinical experience, we hypothesized there would not be a positive correlation between the severity of EDX and ulnar nerve CSA.
Methods: This was a retrospective analysis of patients 18 years or older evaluated from May 1, 2020, to June 31, 2021, referred for an upper limb EDX and neuromuscular ultrasound to evaluate for an upper limb neuropathy.
Int J Mol Sci
December 2024
Department of Anatomy, Cellular and Molecular Research Group, Faculty of Medicine, Masaryk University, Kamenice 3, CZ-625 00 Brno, Czech Republic.
CXCL12 and CXCR4 proteins and mRNAs were monitored in the dorsal root ganglia (DRGs) of lumbar (L4-L5) and cervical (C7-C8) spinal segments of naïve rats, rats subjected to sham operation, and those undergoing unilateral complete sciatic nerve transection (CSNT) on post-operation day 7 (POD7). Immunohistochemical, Western blot, and RT-PCR analyses revealed bilaterally increased levels of CXCR4 protein and mRNA in both lumbar and cervical DRG neurons after CSNT. Similarly, CXCL12 protein levels increased, and CXCL12 mRNA was upregulated primarily in lumbar DRGs ipsilateral to the nerve lesion.
View Article and Find Full Text PDFA A Pract
January 2025
From the Department of Anesthesia, Perioperative and Pain Medicine, Lahey Hospital and Medical Center, Burlington, Massachusetts.
After vascular puncture and catheterization, arteries can have many complications that impede blood flow such as vasospasm, thrombosis, and emboli generation, among other complications. Treatment depends on severity of ischemic symptoms and can range from as mild as applying local heat packs to surgical thrombectomy. We present a case of digital ischemia secondary to vascular puncture that was successfully treated with a supraclavicular nerve block, resulting in the vascular surgery team canceling an emergent surgery.
View Article and Find Full Text PDFJ Hand Surg Eur Vol
January 2025
Hand and Reconstructive Unit, Department of Orthopedics, Faculty of Medicine, Khon Kaen University, 123 Mitraphap Road, Khon Kaen 40002, Thailand.
The study evaluates the forced small finger abduction test for assessing the strength of intrinsic muscles innervated by the ulnar nerve. The test was performed on healthy and ulnar neuropathy patients. Results demonstrate its ability to detect intrinsic weakness, which may enhance diagnosis of ulnar neuropathy.
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