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1
المؤلفون: Tyson K. Cobb, William P. Cooney, Stephen W. Carmichael
المصدر: The Journal of Hand Surgery. 21:861-869
مصطلحات موضوعية: musculoskeletal diseases, Hypothenar eminence, Carpal tunnel surgery, Wrist, Palmaris brevis muscle, Ulnar Artery, Retinaculum, medicine.artery, Cadaver, Humans, Medicine, Orthopedics and Sports Medicine, Ulnar nerve, Carpal Bones, Ulnar Nerve, Ulnar artery, business.industry, Anatomy, Hand, musculoskeletal system, nervous system diseases, body regions, medicine.anatomical_structure, Surgery, Hamate Bone, business
الوصف: The boundaries of the space through which the ulnar neurovascular bundle crosses the wrist have been reinvestigated. Using gross dissections, transverse and sagittal sections, and histologic study, we determined that the roof of Guyon's canal, the "carpal ulnar neurovascular space," does not directly connect to the hamate bone, as is currently accepted. The roof of this space extends radially to the hook of hamate and attaches to the flexor retinaculum. This anatomic arrangement allows the ulnar artery and sensory component of the ulnar nerve to course radially to the hook of hamate, where they lie on the flexor retinaculum (transverse carpal ligament). The roof and radial border have three segments: (1) a proximal segment that begins near the pisiform and extends distally to the level of the hook of hamate but does not attach directly to it, (2) a central segment that contains only adipose tissue, and (3) a distal fascial layer that includes the palmaris brevis muscle. The floor of the space consists of the muscles of the hypothenar eminence, their fibers of origin, and the flexor retinaculum (transverse carpal ligament). Guyon accurately described the proximal portion of the carpal ulnar neurovascular space, but his description has been misinterpreted; the hook of hamate does not serve as the radial boundary of Guyon's canal. The anatomic relationships of the "carpal ulnar neurovascular space" need to be appreciated to avoid complications during carpal tunnel surgery.
URL الوصول: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::753ea26c3c069a4ee84a600799a41181
https://doi.org/10.1016/s0363-5023(96)80205-x -
2
المؤلفون: Stephen W. Carmichael, David Khoo, Robert J. Spinner
المصدر: Orthopedic Clinics of North America. 27:317-338
مصطلحات موضوعية: musculoskeletal diseases, business.industry, Elbow, Anatomy, Wrist, Ulnar Nerve Compression Syndromes, musculoskeletal system, Compression (physics), body regions, Surgical decompression, medicine.anatomical_structure, medicine, Upper limb, Orthopedics and Sports Medicine, Ulnar nerve, business
الوصف: Compression of the ulnar nerve can be understood in terms of the anatomic and dynamic factors. Although the ulnar nerve may be compressed at any point along its course, it is particularly susceptible at the elbow and the wrist. Clinically relevant anatomy will be reviewed in an attempt to provide the reader with a logical framework for successfully diagnosing and managing typical and atypical ulnar nerve compression lesions.
URL الوصول: https://explore.openaire.eu/search/publication?articleId=doi_________::2e08b9b3509fcc1887e67b3d3f4476bd
https://doi.org/10.1016/s0030-5898(20)32076-9 -
3
المؤلفون: William P. Cooney, Stephen W. Carmichael, Tyson K. Cobb
المصدر: Journal of hand surgery (Edinburgh, Scotland). 19(1)
مصطلحات موضوعية: Wrist Joint, medicine.medical_specialty, Hook, Wrist, Retinaculum, Cadaver, medicine.artery, medicine, Humans, Ulnar nerve, Ulnar artery, Carpal Bones, Ulnar Nerve, Transplantation, business.industry, Endoscopy, Anatomy, musculoskeletal system, Neurovascular bundle, Hand, Carpal Tunnel Syndrome, Endoscopic carpal tunnel release, Surgery, body regions, medicine.anatomical_structure, sense organs, business
الوصف: The boundaries of Guyon’s canal have recently been redefined by a series of anatomical dissections. These showed that the confines of this space do not extend from the pisiform to the hook of the hamate, as currently accepted. The fascial roof extends radial to the hook of the hamate, which allows the ulnar neurovascular bundle to course radial to the hamate hook. The position of the ulnar nerve and artery is of particular significance for endoscopic carpal tunnel release. Most endoscopic devices are designed to divide the flexor retinaculum just to the radial aspect of the hamate hook. Utilizing cross-sectional analysis of nine cadaver specimens, we found the ulnar artery to course radial to the hamate hook in five and palmar to it in four. Therefore, the ulnar artery may be at greater risk of injury during endoscopic procedures than previously recognized.
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4
المؤلفون: M. Spinner, Stephen W. Carmichael, Robert J. Spinner
المصدر: Journal of hand surgery (Edinburgh, Scotland). 16(3)
مصطلحات موضوعية: musculoskeletal diseases, Adult, Male, medicine.medical_specialty, Neurological complication, Brachial fascia, Pectoralis Muscles, Peripheral nerve, Medicine, Humans, Ulnar nerve entrapment, Ulnar Nerve, Transplantation, business.industry, Nerve Compression Syndromes, Anatomy, Medial epicondyle of the humerus, musculoskeletal system, Neurovascular bundle, medicine.disease, Clavicle, Surgery, body regions, Axilla, medicine.anatomical_structure, business
الوصف: The chondroepitrochlearis muscle is an extremely rare muscle, arising from the pectoralis major, crossing over the neurovascular bundle in the axilla and inserting into the brachial fascia and medial epicondyle of the humerus. This paper presents the first known neurological complication due to the chondroepitrochlearis muscle.
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5
المؤلفون: Shawn W. O'Driscoll, B. F. Morrey, Emiko Horii, Stephen W. Carmichael
المصدر: Scopus-Elsevier
مصطلحات موضوعية: musculoskeletal diseases, Flexor Carpi Ulnaris, Olecranon, Elbow, Ulnar neuropathy, Retinaculum, Elbow Joint, medicine, Humans, Orthopedics and Sports Medicine, Ulnar nerve, Ulnar Nerve, Cubital tunnel, business.industry, Dissection, Nerve Compression Syndromes, Anatomy, musculoskeletal system, medicine.disease, Classification, Biomechanical Phenomena, body regions, medicine.anatomical_structure, Ligaments, Articular, Upper limb, Surgery, business
الوصف: The anatomy of the cubital tunnel and its relationship to ulnar nerve compression is not well documented. In 27 cadaver elbows the proximal edge of the roof of the cubital tunnel was formed by a fibrous band that we call the cubital tunnel retinaculum (CTR). The band is about 4 mm wide, extending from the medial epicondyle to the olecranon, and perpendicular to the flexor carpi ulnaris aponeurosis. Variations in the CTR were classified into four types. In type 0 (n = 1) the CTR was absent. In type Ia (n = 17), the retinaculum was lax in extension and taut in full flexion. In type Ib (n = 6) it was tight in positions short of full flexion (90 degrees to 120 degrees). In type II (n = 3) it was replaced by a muscle, the anconeus epitrochlearis. The CTR appears to be a remnant of the anconeus epitrochlearis muscle and its function is to hold the ulnar nerve in position. Variations in the anatomy of the CTR may explain certain types of ulnar neuropathy. Its absence (type 0 CTR) permits ulnar nerve displacement. Type Ia is normal and does not cause ulnar neuropathy. Type Ib can cause dynamic nerve compression with elbow flexion. Type II may be associated with static compression due to the bulk of the anconeus epitrochlearis muscle.
URL الوصول: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::65228f7c513df2958f2eadd1bd0b08ee
http://www.scopus.com/inward/record.url?eid=2-s2.0-0025821066&partnerID=MN8TOARS
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