Intramuscular innervation of plantaris muscle evaluated using a modified Sihler's staining protocol — Proposal for a new classification

Olewnik Ł, Karauda P, Gonera B, Kurtys K, Haładaj R, Tubbs RS, Paulsen F, Ramón Sanudo J, Polguj M (2020)

Publication Type: Journal article

Publication year: 2020

Journal

Annals of Anatomy-Anatomischer Anzeiger Elsevier

Book Volume: 230

Article Number: 151504

DOI: 10.1016/j.aanat.2020.151504

Abstract

Purpose: The plantaris muscle is a morphologically variable structure with regard to both its origin and insertion, and the course of the tendon. We here determined the pattern of branching and distribution of intramuscular nerves of the plantaris muscle to determine its usability for autologous transplantation. No information exists on the innervation of the plantaris muscle using Sihler's staining technique, and hence its intramuscular nerves. The main purpose of the work is to determine the pattern of branching and distribution of the intramuscular nerves of the plantaris muscle. Is the plantaris muscle a good transplant candidate? Materials and methods: Eighty lower limbs from cadavers (40 left, 40 right, 40 male, 40 female, age range 41–94 years) were fixed in 10% formalin solution and examined macroscopically as well as morphometrically with regard to the innervation pattern of the respective plantaris muscle. Afterwards Sihler's staining was used in all 80 plantaris muscles to identify the exact distribution of the muscular branch originating from the main nerve trunk in the muscle belly. Results: Two patterns of branching and nerve distribution could be intensified in the plantaris muscle: Type I, with a single pattern entire up to the muscle and then divided into superior and inferior intramuscular branches.; type II with a double innervation pattern (superior and inferior). The superior and inferior pattern were not connected to each other. Conclusion: The plantaris muscle reveals variability with two different innervation patterns. Type II is ideally suited for autologous transplantation. New classifications of innervation are desirable for individual muscles rather than a generalized approach.

Authors with CRIS profile

Friedrich Paulsen Lehrstuhl für Funktionelle und Klinische Anatomie

Involved external institutions

Medical University of Łódź / Uniwersytet Medyczny w Łodzi PL Poland (PL) Tulane University US United States (USA) (US) Universidad Complutense de Madrid (UCM) ES Spain (ES)

How to cite

APA:

Olewnik, Ł., Karauda, P., Gonera, B., Kurtys, K., Haładaj, R., Tubbs, R.S.,... Polguj, M. (2020). Intramuscular innervation of plantaris muscle evaluated using a modified Sihler's staining protocol — Proposal for a new classification. Annals of Anatomy-Anatomischer Anzeiger, 230. https://dx.doi.org/10.1016/j.aanat.2020.151504

MLA:

Olewnik, Ł., et al. "Intramuscular innervation of plantaris muscle evaluated using a modified Sihler's staining protocol — Proposal for a new classification." Annals of Anatomy-Anatomischer Anzeiger 230 (2020).

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