Morphometric study of inferior peroneal retinaculum and contents of inferior peroneal tunnel
Abstract
Background: The aims of this study are to investigate the inferior peroneal retinaculum (IPR) regarding morphometric parameters, and contents in the inferior peroneal tunnel (IPT).
Materials and methods: One hundred and nine embalmed cadaveric legs were dissected in prone position.
Results: 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 [mm] 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), respectively. The angle of the IPR to the horizontal axis was 38.51 ± 7.07 (11.67–54.00) degrees. The IPT was divided into the upper and lower tunnels. The normal contents were the tendons of peroneus brevis and peroneus longus in the upper and lower tunnels, respectively. However, additional contents were found in the upper tunnel in 2 cases. One was the tendon of peroneus digiti quinti, and peroneus quartus in the other one. Moreover, an unusual accessory peroneal muscle coursed into the lower tunnel and inserted on the peroneal tubercle. Tears of the peroneus brevis tendon were observed in 2 cases.
Conclusions: These morphometric data might be beneficial in surgical repair for IPR injury.
Keywords: inferior peroneal retinaculuminferior peroneal tunnelmorphometry
References
- Athavale SA, Gupta V, Kotgirwar S, et al. The peroneus quartus muscle: clinical correlation with evolutionary importance. Anat Sci Int. 2012; 87(2): 106–110.
- Chaney ME, Dao TV, Brechtel BS, et al. The fibularis digiti quinti tendon: A cadaveric study with anthropological and clinical considerations. Foot (Edinb). 2018; 34: 45–47.
- Davda K, Malhotra K, O’Donnell P, et al. Peroneal tendon disorders. EFORT Open Rev. 2017; 2(6): 281–292.
- Demir BT, Gümüşalan Y, Üzel M, et al. The variations of peroneus digiti quinti muscle and its contribution to the extension of the fifth toe. A cadaveric study. Saudi Med J. 2015; 36(11): 1285–1289.
- Hur MS, Won HS, Chung IH. A new morphological classification for the fibularis quartus muscle. Surg Radiol Anat. 2015; 37(1): 27–32.
- Jadhav SD, Gosavi SN, Zambare BR. Study of peroneus digiti minimi quinti in Indian population: a cadaveric study. Rev de Arg Anat Clin. 2013; 5: 67–72.
- Sammarco VJ, Cuttica DJ, Sammarco GJ. Lasso stitch with peroneal retinaculoplasty for repair of fractured os peroneum: a report of two cases. Clin Orthop Relat Res. 2010; 468(4): 1012–1017.
- Sarrafian SK. Sarrafian's anatomy of the foot and ankle descriptive, topographic, functional. 3rd ed. Lippincott William&Wilkins, a Wolters Kluwer , Philadelphia 2011: 131–132.
- Sobel M, Levy ME, Bohne WH. Congenital variations of the peroneus quartus muscle: an anatomic study. Foot Ankle. 1990; 11(2): 81–89.
- Standring S. Section 9:pelvic girdle and lower limb. In: Tubbs RS, editor. Gray's Anatomy: the anatomical basis of clinical practice. 41 ed. Elsevier, London 2014: 1400–1417.
- Staresinic M, Bakota B, Japjec M, et al. Isolated inferior peroneal retinculum tear in professional soccer players. Injury. 2013; 44 Suppl 3: S67–S70.
- Yammine K. The accessory peroneal (fibular) muscles: peroneus quartus and peroneus digiti quinti. A systematic review and meta-analysis. Surg Radiol Anat. 2015; 37(6): 617–627.
- Zammit J, Singh D. The peroneus quartus muscle. Anatomy and clinical relevance. J Bone Joint Surg Br. 2003; 85(8): 1134–1137.
