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Poster 198: Risk of Injury During Proximal Hamstring Repair: Anatomy of the Posterior Femoral Cutaneous Nerve

OBJECTIVES: Injury to the posterior femoral cutaneous nerve (PFCN) has been described after proximal hamstring repair and fixation of ischial tuberosity avulsion fractures. Variations in the location of the PFCN and its branches have not been described. The purpose of this study was to identify the...

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Autores principales: Gould, Heath, Dreese, James, Remy, Lindsay
Formato: Online Artículo Texto
Lenguaje:English
Publicado: SAGE Publications 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9340364/
http://dx.doi.org/10.1177/2325967121S00759
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author Gould, Heath
Dreese, James
Remy, Lindsay
author_facet Gould, Heath
Dreese, James
Remy, Lindsay
author_sort Gould, Heath
collection PubMed
description OBJECTIVES: Injury to the posterior femoral cutaneous nerve (PFCN) has been described after proximal hamstring repair and fixation of ischial tuberosity avulsion fractures. Variations in the location of the PFCN and its branches have not been described. The purpose of this study was to identify the location and number of branches of the PFCN in relation to the origin of the proximal hamstring tendons. METHODS: Fifteen lower torso human cadaveric specimens were dissected in prone position. Skin and subcutaneous tissues were reflected to expose the gluteal and hamstring musculature. The distances between the ischial tuberosity and lateral border of the hamstring, PFCN, perineal branch of the PFCN, and descending femoral branch of the PFCN were measured with digital calipers. Measurements were repeated 3 times and averaged. RESULTS: The PFCN was 30.5 ±11.4 mm lateral to the central tip of the ischial tuberosity (range, 15.7 to 52.0 mm). The average longitudinal distance from the tip of the ischial tuberosity to the point where the perineal branch crossed the hamstrings was 24.1 ±15.0 mm (range, 9.9 to 52.2 mm). The average longitudinal distance to the point where the descending cutaneous branch crossed the hamstrings was 83.3 ±21.3 mm (range, 41.3 to 110.3 mm). The PFCN was nearest to the inferior border of the gluteus maximus 45.8±13.6 mm lateral to the ischial tuberosity (range, 13.6 to 62.1 mm). Eleven specimens had one identifiable perineal branch; four had two distinct perineal branches. CONCLUSIONS: The PFCN was in close proximity to the surgical approach utilized during proximal hamstring repair, with the perineal branch consistently crossing the surgical field transversely. The location of these nerves varied substantially among the specimens tested, with some nerves positioned less than 1cm from the ischial tuberosity and some specimens having two perineal branches.
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spelling pubmed-93403642022-08-02 Poster 198: Risk of Injury During Proximal Hamstring Repair: Anatomy of the Posterior Femoral Cutaneous Nerve Gould, Heath Dreese, James Remy, Lindsay Orthop J Sports Med Article OBJECTIVES: Injury to the posterior femoral cutaneous nerve (PFCN) has been described after proximal hamstring repair and fixation of ischial tuberosity avulsion fractures. Variations in the location of the PFCN and its branches have not been described. The purpose of this study was to identify the location and number of branches of the PFCN in relation to the origin of the proximal hamstring tendons. METHODS: Fifteen lower torso human cadaveric specimens were dissected in prone position. Skin and subcutaneous tissues were reflected to expose the gluteal and hamstring musculature. The distances between the ischial tuberosity and lateral border of the hamstring, PFCN, perineal branch of the PFCN, and descending femoral branch of the PFCN were measured with digital calipers. Measurements were repeated 3 times and averaged. RESULTS: The PFCN was 30.5 ±11.4 mm lateral to the central tip of the ischial tuberosity (range, 15.7 to 52.0 mm). The average longitudinal distance from the tip of the ischial tuberosity to the point where the perineal branch crossed the hamstrings was 24.1 ±15.0 mm (range, 9.9 to 52.2 mm). The average longitudinal distance to the point where the descending cutaneous branch crossed the hamstrings was 83.3 ±21.3 mm (range, 41.3 to 110.3 mm). The PFCN was nearest to the inferior border of the gluteus maximus 45.8±13.6 mm lateral to the ischial tuberosity (range, 13.6 to 62.1 mm). Eleven specimens had one identifiable perineal branch; four had two distinct perineal branches. CONCLUSIONS: The PFCN was in close proximity to the surgical approach utilized during proximal hamstring repair, with the perineal branch consistently crossing the surgical field transversely. The location of these nerves varied substantially among the specimens tested, with some nerves positioned less than 1cm from the ischial tuberosity and some specimens having two perineal branches. SAGE Publications 2022-07-28 /pmc/articles/PMC9340364/ http://dx.doi.org/10.1177/2325967121S00759 Text en © The Author(s) 2022 https://creativecommons.org/licenses/by-nc-nd/4.0/This open-access article is published and distributed under the Creative Commons Attribution - NonCommercial - No Derivatives License (https://creativecommons.org/licenses/by-nc-nd/4.0/), which permits the noncommercial use, distribution, and reproduction of the article in any medium, provided the original author and source are credited. You may not alter, transform, or build upon this article without the permission of the Author(s). For article reuse guidelines, please visit SAGE’s website at http://www.sagepub.com/journals-permissions.
spellingShingle Article
Gould, Heath
Dreese, James
Remy, Lindsay
Poster 198: Risk of Injury During Proximal Hamstring Repair: Anatomy of the Posterior Femoral Cutaneous Nerve
title Poster 198: Risk of Injury During Proximal Hamstring Repair: Anatomy of the Posterior Femoral Cutaneous Nerve
title_full Poster 198: Risk of Injury During Proximal Hamstring Repair: Anatomy of the Posterior Femoral Cutaneous Nerve
title_fullStr Poster 198: Risk of Injury During Proximal Hamstring Repair: Anatomy of the Posterior Femoral Cutaneous Nerve
title_full_unstemmed Poster 198: Risk of Injury During Proximal Hamstring Repair: Anatomy of the Posterior Femoral Cutaneous Nerve
title_short Poster 198: Risk of Injury During Proximal Hamstring Repair: Anatomy of the Posterior Femoral Cutaneous Nerve
title_sort poster 198: risk of injury during proximal hamstring repair: anatomy of the posterior femoral cutaneous nerve
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9340364/
http://dx.doi.org/10.1177/2325967121S00759
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