Novosti
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Year 2023 Vol. 31 No 2
CASE REPORTS
S.A. GOLOBOROD’KO 1, 2, O.E. GAVRYKOV 1, 2
ANOMALOUS ABDUCTOR OF THE POLLICIS LONGUS: CASE REPORT
Kharkov Medical Academy for Postgraduate Education 1,
KNP HOS “Regional Clinical Traumatological Hospital” 2, Kharkov,
Ukraine
In the article a clinical observation of a patient with an anomalous abductor pollicis longus is described.
Usually, one muscle belly of the abductor pollicis longus arises from the posterior surface of the ulna just distal to the place of attachment of the supinator muscle, from the interosseous membrane and the posterior surface of the radius, then passes in the form of a tendon through the first extensor fibro-osseous tunnel and inserts into the base of the first metacarpal bone. The abductor pollicis longus is innervated by the posterior interosseous nerve. However, there are many structural anatomical variations. The clinical case, which is described in the article, is an illustration of one unusual variant of the anatomical structure of the abductor pollicis longus. A 15-year-old girl complained of a tumor-like formation in the area of the thenar of the right hand, periodic pains at rest and significant during physical exertion, dysfunction of the hand. Instrumental methods for studying did not reveal any pathologic changes.. A preliminary clinical diagnosis was established: soft tissue tumor-like formation of the thumb of the right hand. During the operation it was revealed, that somewhat proximal to the carpometacarpal joint from the most radially located thenar muscle in the proximal direction a common tendon branched out, which was located in the first extensor fibro-osseous tunnel somewhat more radially than the tendon of the abductor pollicis longus. Atypical muscle belly in the distal direction continued to the metacarpophalangeal joint of the thumb. Ligamentotomy of the first extensor fibro-osseous tunnel was performed. A positive long-term result of the operation confirmed the accuracy of the chosen treatment tactic.
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61145, Ukraine,
Kharkov, ul. Novgorodskaya 8, kv. 31,
ó-mail: golosa@ukr.net,
tel: +38-068-919-89-14,
Goloborod’ko Sergey A.
Goloborod’ko Sergey A., MD, An Associate Professor, Kharkov Medical Academy for Postgraduate Education, Department of Combustiology, Reconstructive and Plastic Surgery; Orthopedic Traumatologist, KNP HOS “Regional Clinical Traumatological Hospital”, Kharkîv, Ukraine.
https://orcid.org/0000-0002-0153-8158
Gavrykov Oleksandr E., MD, An Associate Professor, Kharkov Medical Academy for Postgraduate Education, Department of Emergency Care and Disaster Medicine Director, KNP HOS “Regional Clinical Traumatological Hospital”, Kharkîv, Ukraine.
https://orcid.org/0000-0002-6711-3689
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