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ORIGINAL ARTICLES
Published online: 2018-11-16
Submitted: 2018-10-12
Accepted: 2018-11-07
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Morphometric study of inferior peroneal retinaculum and contents of inferior peroneal tunnel

Pimpimol Dangintawat, Jirun Apinun, Thanasil Huanmanop, Sithiporn Agthong, Vilai Chentanez
DOI: 10.5603/FM.a2018.0108
·
Pubmed: 30484271

open access

Ahead of Print
ORIGINAL ARTICLES
Published online: 2018-11-16
Submitted: 2018-10-12
Accepted: 2018-11-07

Abstract

The aims of this study are to investigate the inferior peroneal retinaculum (IPR) regarding morphometric parameters, and contents in the inferior peroneal tunnel (IP tunnel). One hundred and nine embalmed cadaveric legs were dissected in prone position. The extension band of the IPR was found in 31.19% of cases. The mean of length, width at the origin, width at the middle part, width at the insertion, and thickness of the IPR were 23.42 ± 3.54 (17.05-33.68), 13.29 ± 2.56 (5.83-20.92), 14.50 ± 2.37 (6.68-21.34), 10.10 ± 2.63 (4.59-19.17) and 0.48 ± 0.16 (0.20-0.87) mm, respectively. The angle of the IPR to the horizontal axis was 38.51 ± 7.07 (11.67-54.00) degrees. The IP tunnel was divided into the upper and lower tunnels.  The normal contents were the tendons of peroneus brevis (PB) and peroneus longus (PL) in the upper and lower tunnels, respectively. However, additional contents were found in the upper tunnel in two cases. One was the tendon of peroneus digiti quinti (PDQ), and peroneus quartus (PQ) in the other one. Moreover, an unusual accessory peroneal muscle coursed into the lower tunnel and inserted on the peroneal tubercle. Tears of the PB tendon were observed in two cases. These morphometric data might be beneficial in surgical repair for IPR injury.

Abstract

The aims of this study are to investigate the inferior peroneal retinaculum (IPR) regarding morphometric parameters, and contents in the inferior peroneal tunnel (IP tunnel). One hundred and nine embalmed cadaveric legs were dissected in prone position. The extension band of the IPR was found in 31.19% of cases. The mean of length, width at the origin, width at the middle part, width at the insertion, and thickness of the IPR were 23.42 ± 3.54 (17.05-33.68), 13.29 ± 2.56 (5.83-20.92), 14.50 ± 2.37 (6.68-21.34), 10.10 ± 2.63 (4.59-19.17) and 0.48 ± 0.16 (0.20-0.87) mm, respectively. The angle of the IPR to the horizontal axis was 38.51 ± 7.07 (11.67-54.00) degrees. The IP tunnel was divided into the upper and lower tunnels.  The normal contents were the tendons of peroneus brevis (PB) and peroneus longus (PL) in the upper and lower tunnels, respectively. However, additional contents were found in the upper tunnel in two cases. One was the tendon of peroneus digiti quinti (PDQ), and peroneus quartus (PQ) in the other one. Moreover, an unusual accessory peroneal muscle coursed into the lower tunnel and inserted on the peroneal tubercle. Tears of the PB tendon were observed in two cases. These morphometric data might be beneficial in surgical repair for IPR injury.

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Keywords

inferior peroneal retinaculum, inferior peroneal tunnel, morphometry

About this article
Title

Morphometric study of inferior peroneal retinaculum and contents of inferior peroneal tunnel

Journal

Folia Morphologica

Issue

Ahead of Print

Published online

2018-11-16

DOI

10.5603/FM.a2018.0108

Pubmed

30484271

Keywords

inferior peroneal retinaculum
inferior peroneal tunnel
morphometry

Authors

Pimpimol Dangintawat
Jirun Apinun
Thanasil Huanmanop
Sithiporn Agthong
Vilai Chentanez

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