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Diseases of the Peripheral Nerve and Mononeuropathies
Published in Philip B. Gorelick, Fernando D. Testai, Graeme J. Hankey, Joanna M. Wardlaw, Hankey's Clinical Neurology, 2020
Diana Mnatsakanova, Charles K. Abrams
Flexor carpi ulnaris often escapes compression at the elbow, but if not, there may be a lateral deviation of the hand on wrist flexion. Wrist flexion is generally not affected due to an intact flexor carpi radialis (median-innervated).
Distal Conduction Blocks
Published in Bernard J. Dalens, Jean-Pierre Monnet, Yves Harmand, Pediatric Regional Anesthesia, 2019
Bernard J. Dalens, Jean-Pierre Monnet, Yves Harmand
The ulnar nerve runs along the medial side of the forearm, upon the flexor digitorum profundus muscle. In the distal part of the forearm, it lies on the lateral side of the flexor carpi ulnaris muscle, close to the medial side of the ulnar artery (Figures 1.31C and 1.64). After passing behind the volar carpal ligament, it divides into dorsal and volar terminal branches. The dorsal branch emerges a few centimeters above the wrist and reaches the medial side of the back of the wrist and hand, where it gives rise to two or three dorsal digital nerves (Figure 1.65). The volar branch reaches the palm and divides into two palmar digital nerves, one of which supplies the medial side of the little finger (Figure 1.66). The other one gives at least three branches; one unites with the median nerve, the others supply the lateral side of the little finger and the medial side of the ring finger.
The Antebrachium
Published in Gene L. Colborn, David B. Lause, Musculoskeletal Anatomy, 2009
Gene L. Colborn, David B. Lause
The flexor carpi ulnaris muscle lies upon the ulnar border of the forearm, taking much of its origin from the subcutaneous border of the ulna. Distally, it inserts partially into the pisiform bone and other adjacent bones and ligamentous elements. The pisiform bone is one of the smaller bones of the wrist (carpus). You can palpate the pisiform bone as the hard little structure at the medial border of the wrist, just beyond the distal flexor crease of your wrist.
The effects of pistol grip power tools on median nerve pressure and tendon strains
Published in International Journal of Occupational Safety and Ergonomics, 2022
Ryan Bakker, Mayank Kalra, Sebastian S. Tomescu, Robert Bahensky, Naveen Chandrashekar
There are limitations to this study. First, factors inherent to cadaveric research can affect the reliability of the results, including the effects of placement of the various sensors and difficulty in maintaining the anatomic alignment of the muscle forces. Second, the muscle forces used for this study were linearly scaled from a model developed for a maximal grip force application and not power tool usage. The distribution of muscle contribution to stabilizing the wrist may be different for power tool usage versus maximal grip. There may have been contributions from additional flexor muscles such as the flexor carpi radialis and flexor carpi ulnaris that were not included in this study. The results are limited to one activity with one set of operational parameters such as torque and grip force. The effects of variations of these parameters are not studied. Third, the effects of active insufficiency on muscle forces in the flexed position were not addressed due to no available muscle force models being found for this position. This position may change the muscle forces and strains through the FDP and FDS, which are known to be actively insufficient in this position.
Deep versus moderate neuromuscular block in laparoscopic bariatric surgeries: effect on surgical conditions and pulmonary complications
Published in Egyptian Journal of Anaesthesia, 2019
Mohamed M. Abu Yazed, Sameh Abdelkhalik Ahmed
Quantitative neuromuscular function was monitored using an acceleromyograph (TOF-watch-SX, MSD BV, Oss, Netherlands) that measures the adductor pollicis muscle response. Two electrodes were placed over the course of the ulnar at the radial side of the flexor carpi ulnaris muscle 1 cm proximal to the wrist joint. The contractions of the ipsilateral adductor pollicis muscle (causing adduction of the thumb) were detected by attaching a sensor to the tip of the thumb and placing it in a flexible adaptor to generate preload. TOF-watch-SX was calibrated and stabilized after induction of general anesthesia and before rocuronium administration, according to manufacturer specifications. Neuromuscular block was assessed after endotracheal intubation at 15-second intervals.
Ultrasound-guided percutaneous electrical stimulation for a patient with cubital tunnel syndrome: a case report with a one-year follow-up
Published in Physiotherapy Theory and Practice, 2022
César Fernández-de-Las-Peñas, José L. Arias-Buría, Youssef Rahou El Bachiri, Gustavo Plaza-Manzano, Joshua A. Cleland
After this initial exam, the patient was prescribed a splint to be worn at night with the goal of maintaining his elbow in extension. Additionally, he performed active neural gliding exercises and received soft tissue mobilization to muscles related to the ulnar nerve (e.g. scalene, pectoralis minor, triceps brachii, flexor carpi ulnaris, flexor digitorum profundus, and hypothenar muscles). He was also asked to perform strengthening exercises for hand muscles. Unfortunately, this treatment approach resulted in no changes in signs or symptoms after 6 months. At that point, the patient stopped his treatment until 1-year post-onset when the patient presented for the first time to the primary author’s clinic.