China
Africa
Explore chapters and articles related to this topic
Upper Limb Muscles
Published in Eve K. Boyle, Vondel S. E. Mahon, Rui Diogo, Handbook of Muscle Variations and Anomalies in Humans, 2022
Eve K. Boyle, Vondel S. E. Mahon, Rui Diogo
Extensor carpi ulnaris originates from the lateral epicondyle of the humerus and the posterior margin of the ulna (Standring 2016). It inserts via a tendon onto the base of the fifth metacarpal (Standring 2016).
Clinical Evaluation
Published in J. Terrence Jose Jerome, Clinical Examination of the Hand, 2022
Extensor carpi ulnaris (ECU) tendinitis may coexist with tendon entrapment making it difficult to diagnosis and treat. The classical presentation of ECU instability is an audible snap, pain during forceful supination activity and palpating the tendon subluxation. For example, while playing tennis or cricket, the player extends their wrist from full pronation to full supination making an audible snap. MRI helps to identify tendon subluxation and differentiates from tenosynovitis shallow ECU groove and anomalous extensor tendons (Table 2.13) (Video 2.1).
The wrist and hand
Published in David Silver, Silver's Joint and Soft Tissue Injection, 2018
Early gentle thumb movement will maintain movement between the tendon, sheath and surrounding tissue interfaces, but should be performed within a pain-free range. Strengthening surrounding muscles, including eccentric activity of the extensor carpi ulnaris, aims to reduce the stress through the affected tendons.
Post-arthrolysis rehabilitation in a patient with wrist stiffness secondary to distal radio-ulnar fracture: A case report
Published in Physiotherapy Theory and Practice, 2023
Andrea Inglese, Sheila Santandrea
When the patient was asked to extend the wrist, the observed movement was not functional. During movement, the Extensor Carpi Ulnaris (ECU) was activated more than the remaining extensor muscle component. Extension occurred in ulnar deviation and there was also a compensation from the finger extensors. The patient was unable to remember how to properly perform wrist extension because this had not been executed functionally for more than two years. Thus, a Graded Motor Imagery (GMI) program was introduced with the aim of re-learning a correct motor scheme (Dilek, Ayhan, Yagci, and Yakut, 2018; McGee, Skye, and Van Heest, 2018) (Figure 7). The GMI program consisted of two weeks each of hand left/right discrimination, hand motor imagery and mirror therapy. During mirror therapy, the patient first performed wrist movements (flexion/extension and radial/ulnar deviation) with the non-affected hand only; then the patient was asked to perform the same movements with the injured hand. Finally, task-oriented activities were executed with both hands. Moreover, after promoting conscious motor control, proprioception reeducation was also included.
Radial nerve palsy following humeral shaft fracture: a theoretical PNF rehabilitation approach for tendon and nerve transfers
Published in Physiotherapy Theory and Practice, 2022
Lauren Fader, John Nyland, Hao Li, Brandon Pyle, Kei Yoshida
During Phase II, the individual performs high-frequency (hourly), low-intensity donor muscle group activation “fisting,” and low-intensity PNF isometric “position and hold” exercises. Long-term treatment effectiveness is directly related to the motor learning developed during this phase. Early use of high intensity manually resisted scapular PNF patterns at the ipsilateral and contralateral upper extremity may facilitate involved side proximal-to-distal overflow to the wrist and finger extensors, and thumb extensors-abductors. Manually resisted scapular PNF patterns may be safely applied with high intensity at both upper extremities as no direct load is applied to the healing humerus fracture site. Distally, at the involved upper extremity hand and wrist, a passive rhythmic initiation PNF technique can be used within specific ranges of motion in conjunction with verbal cues to open the hand, and extend the wrist, or close the hand, and flex the wrist following a quick stretch stimulus (Adler, Beckers, and Buck, 2008; Saliba, Johnson, and Wardlaw, 1993). Manually applied wrist, metacarpophalangeal, or interphalangeal joint approximation, or slight traction may improve joint stability or mobility, respectively. These techniques should improve extensor carpi radialis brevis generated wrist extension-abduction, extensor digitorum communis generated proximal and distal interphalangeal joint and wrist extension, extensor digiti minimi generated little finger metacarpophalangeal joint extension, and extensor carpi ulnaris generated wrist extension-adduction.
An investigation of dynamic ulnar impingement after the Darrach procedure with ultrasonography
Published in Journal of Plastic Surgery and Hand Surgery, 2022
Kuan-Jung Chen, Jung-Pan Wang, Hui-Kuang Huang, Yi-Chao Huang
The patients received surgery under general anesthesia. An incision was made on the dorsal side of the wrist, medial to the extensor carpi ulnaris (ECU). Anterior interosseous nerve (AIN) and posterior interosseous nerve (PIN) neurectomy were routinely performed, excising the distal 1–2 cm section. The extensor retinaculum, periosteum, and the distal part of the pronator quadratus (PQ) muscle were elevated to expose the distal ulna. Then ulnar osteotomy was made in a long-sloped shape, and parallel to the contour of the opposing radius. The edges of the ulnar cut were beveled with the saw. The detached distal part of the PQ muscle was transferred dorsally and sutured onto the periosteum sleeve of the ulnar stump, forming an interposition (Figure 2). In the cases with an attritional tear of the extensor tendons, the tendons were explored and reconstructed using the same incision.