Sushma RK, Rohini ALVA, Antony Sylvan D' SOUZA, Kumar Mr BHAT

Varyant İnsersiyonlu Peroneus Quartus: Bir Olgu Sunumu

Bacağın lateral bölgesinin kassis temindeki varyasyonlar nadir değildir, ancak tanı ve görüntülemelerin yorumlanması klinisyenler ve radyologlar için büyük önem taşımaktadır. Lisans öğrencileri için rutin diseksiyon esnasında bu nadir varyasyonlarla karşılaşıldı. Bel bölgesindeki küçük kas grubunu (proneus quartus) ;proneus longusun küçük katkılarıyla fibulanın üst lateral yüzeyinden gelen proneus brevis ile birlikte oluştuğu bulunmuştur. Süperior peroneal retinakulumu geçtikten sonar esas olarak yuvarlak tendon, peroneus brevis ile birlikte beşinci metatars alın tabanından lateral bölgeye yerleşmiştir. Aynı zamanda bundan başka 5.metatarsal kemiğin gövdesine küçük fibröz bir uzantı ve dördüncü metatarsal kemiğin tabanına geniş bir uzantı gösterilmiştir. Bu kasın insersiyon paternindeki varyasyonlar hakkındaki farkındalık; rekonstrüktif prosedürleri üstlenen cerrahlar için büyük önem taşımaktadır.

Anahtar Kelimeler:

Peroneus quarter, peroneus longus, peroneus brevis, metatarsallar

Peroneus Quartus with Variant Insertions: A Case Report

Variations in the musculature of the lateral compartment of the leg are not uncommon but are of importance to clinicians and radiologists in diagnosis or imaging interpretations. During routine dissection classes for undergraduate students this rare variation was encountered. A small additional muscle belly (peroneus quartus) was found arising along with peroneus brevis from the upper lateral surface of the fibula with little contribution from the peroneus longus. The rounded tendon after passing through the superior peroneal retinaculum was mainly inserted on to the lateral side of the base of the fifth metatarsal along with the peroneus brevis. Further, it also provided small fibrous extensions to the shaft of the fifth metatarsal bone and a large extension to the base of the 4th metatarsal bone. Awareness of such variations in the insertion pattern of this muscle is of importance to the surgeons undertaking reconstructive procedures.

Keywords:

Peroneus quarters, peroneus longus, peroneus brevis, metatarsals,

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YazışmaAdresi / Address for Correspondence: Dr.Kumar MR Bhat Manipal University, Kasturba Medical Collage Department of Anatomy, Manipal-576104, India
E-mail: kumar.mr@manipal.edu geliştarihi/received :06.01.2014 kabultarihi/accepted:14.02.2014