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Hand-Transmitted Vibration
Published in Neil J. Mansfield, Human Response to Vibration, 2004
Occasionally, tendons or their synovial sheaths can become inflamed causing tendonitis or tenosynovitis, respectively. Conditions such as lateral epicondylitis (“tennis elbow”) or medial epicondylitis (“golfer’s elbow”) are common forms of tendonitis observed with users of tools. Similarly, tool users commonly exhibit painful swelling of the extensor tendon sheaths of the thumb (de Quervain’s disease) or the flexor tendons of the finger (“trigger finger”). As for other elements of HAVS, these conditions are unlikely to be directly caused by vibration but by other ergo-nomic factors (e.g., posture, manual handling) associated with the job.
Repetitive strain injury
Published in Carol Wilkinson, Managing Health at Work, 2020
Tenosynovitis is a disorder affecting the tissues of the hand, wrist and arm. It is slightly different to peritendinitis, in that it is manifested by inflammation of a tendon in its sheath and surrounding tissues. Sites often affected include the wrist, hand, fingers, forearm and elbow. Common signs and symptoms of this condition include: painful or aching fingers, wrists or lower arms - this may be a nagging pain similar to toothache;pain in the elbow worsening on movement;swelling of the affected area;loss of function and/or weakness of the grip of the hand;crepitus3 over the affected area;numbness and/or tingling in the fingers, hands or wrists. Tenosynovitis occurs as a result of rapid repetitive movements of the lower arm, wrist and fingers. It has been recognized among assembly line workers since the 1930s. It occurs in workers who are required to undertake tasks using manual force, or involved in awkward and unsuitable positions. This condition is common among meat and poultry workers, engineers and VDU operators (English et al., 1989). The condition has also been detected in agricultural workers, e.g. cane cutters, net makers and hop pickers.
Tenosynovitis
Published in Richard Graveling, Ergonomics and Musculoskeletal Disorders (MSDs) in the Workplace, 2018
Tenosynovitis is an inflammation of the synovial sheaths that surround tendons at certain points in the body, resulting in pain and swelling. Although tenosynovitis can potentially occur at any of these points, those in the wrist are most commonly associated with work and will be explored here.
Biomechanical evaluation of the stability of extra-articular distal radius fractures fixed with volar locking plates according to the length of the distal locking screw
Published in Computer Methods in Biomechanics and Biomedical Engineering, 2021
Gyung-Hwan Oh, Hak-Sung Kim, Jung Il Lee
Distal radius fractures (DRFs) are a common injury encountered by orthopedic surgeons. Recently, an operative treatment using a volar locking plate (VLP) has emerged as a popular treatment for unstable DRFs. (Chung et al. 2009; Obert et al. 2013) However, the increased use of VLP has led to various postsurgical complications. Extensor tendon complications such as extensor tenosynovitis, extensor pollicis longus rupture, and extensor digitorum rupture after VLP fixation have been extensively reported. (Benson et al. 2006; Soong et al. 2011; Bentohami et al. 2014; Caruso et al. 2015; Azzi et al. 2017; Thorninger et al. 2017) These complications related to extensor tendons can occur due to inappropriate surgical technique (injury by depth gauge or drill bit) or dorsal protrusion of the distal screw.
Pediatric and adolescent injury in rock climbing
Published in Research in Sports Medicine, 2018
Volker Schöffl, Christoph Lutter, Kaikanani Woollings, Isabelle Schöffl
When investigating the onset of injury one faces the difficulty of differentiating between acute and chronic onset of injury, which is sometimes impossible. A tenosynovitis can very well have an acute onset as a consequence of a pulley rupture for example but may also stem from repetitive overuse leading to chronic inflammation of the tendon sheath (V. R. Schöffl & Schöffl, 2007). Schöffl et al. (2015) found in 911 injured climbers overstrain (slow injury onset) in 26 patients (69.2%) and acute injuries in 30.8%. Woollings, McKay, Kang, et al. (2015) found that of self-reported injuries incurred during both bouldering and sport climbing, repetitive overuse had the highest incidence rate of injury at 1.13 injuries per 1000 athlete-exposure hours (95% CI 0.79 to 1.56), while falls accounted for 0.88 injuries per 1000 hours (95% CI 0.58 to 1.27), and strenuous moves caused 0.56 injuries per 1000 hours (95% CI 0.33 to 0.89).
Reduction in ulnar pressure distribution when walking with forearm crutches with a novel cuff design: Cross-sectional intervention study on the biomechanical efficacy of an ulnar recess
Published in Assistive Technology, 2018
Pascal Molteni, Thomas Hügle, Maria Hügle, Corina Nüesch, Annegret Mündermann
While facilitating lower ambulatory load at the joints of the lower extremity, walking with crutches comes at the cost of greater loads at the joints of the upper extremity. For instance, the glenohumeral joint may be loaded by more than 100% body weight during crutch gait on the leg completely unloaded with forces (Westerhoff et al., 2012)—for forearm crutches being even higher than for axillary crutches—whereas this joint is not loaded in normal ambulation. In addition, walking with forearm crutches can trigger tenosynovitis in the biceps tendon (Kruger & Bischof-Leger, 2008) and cause ulnar neuropraxia at the wrist (Ginanneschi, Filippou, Milani, Biasella, & Rossi, 2009) and at the forearm (Malkan, 1992) because of the contact of the hand and forearm with the handle and cuff of forearm crutches, respectively. Other complications, such as pain or skin hematoma—mostly along the ulnar bone—and even ulnar bone fracture during crutch gait have been reported (McGoldrick & O’Brien, 1988; Venkatanarasimha, Kamath, Kambouroglou, & Ostlere, 2009).