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Piriformis Muscle: Clinical Anatomy with Computed Tomography in Korean Population

BACKGROUND: The objective was to evaluate the distance from the skin and the diameter of the piriformis muscle and their relationship to the body mass index (BMI). METHODS: The study was a prospective study involving 60 patients. Patients were prepared on a radiological table in the prone position....

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Autores principales: Park, Chan Hong, Lee, Sang Ho, Lee, Sang Chul, Park, Hahck Soo
Formato: Online Artículo Texto
Lenguaje:English
Publicado: The Korean Pain Society 2011
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3111565/
https://www.ncbi.nlm.nih.gov/pubmed/21716616
http://dx.doi.org/10.3344/kjp.2011.24.2.87
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author Park, Chan Hong
Lee, Sang Ho
Lee, Sang Chul
Park, Hahck Soo
author_facet Park, Chan Hong
Lee, Sang Ho
Lee, Sang Chul
Park, Hahck Soo
author_sort Park, Chan Hong
collection PubMed
description BACKGROUND: The objective was to evaluate the distance from the skin and the diameter of the piriformis muscle and their relationship to the body mass index (BMI). METHODS: The study was a prospective study involving 60 patients. Patients were prepared on a radiological table in the prone position. Several images were obtained of each. In this view, the distance between the subcutaneous tissue and the piriformis muscle, and the diameter of the piriformis, were measured at three points (medially to laterally). RESULTS: The distance to the piriformis from the skin was 6.6 ± 0.9 cm, 6.3 ± 0.8 cm, and 5.2 ± 0.9 cm in terms of the lateral, center, and medial measurement, respectively. The center of the piriformis had a greater diameter with 1.7 ± 0.4 (0.9-2.5) cm. The distance to the piriformis increased with BMI. CONCLUSIONS: This study shows that the lateral of the piriformis muscle has a relatively greater distance from the skin. The center of the piriformis showed a greater diameter than other two portions. We found that the distance of the piriformis from subcutaneous tissues was correlated with BMI, but the diameter of the piriformis was not affected by BMI. These measurements can be used as a reference for determining the piriformis injection site in patients with piriformis syndrome.
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spelling pubmed-31115652011-06-28 Piriformis Muscle: Clinical Anatomy with Computed Tomography in Korean Population Park, Chan Hong Lee, Sang Ho Lee, Sang Chul Park, Hahck Soo Korean J Pain Original Article BACKGROUND: The objective was to evaluate the distance from the skin and the diameter of the piriformis muscle and their relationship to the body mass index (BMI). METHODS: The study was a prospective study involving 60 patients. Patients were prepared on a radiological table in the prone position. Several images were obtained of each. In this view, the distance between the subcutaneous tissue and the piriformis muscle, and the diameter of the piriformis, were measured at three points (medially to laterally). RESULTS: The distance to the piriformis from the skin was 6.6 ± 0.9 cm, 6.3 ± 0.8 cm, and 5.2 ± 0.9 cm in terms of the lateral, center, and medial measurement, respectively. The center of the piriformis had a greater diameter with 1.7 ± 0.4 (0.9-2.5) cm. The distance to the piriformis increased with BMI. CONCLUSIONS: This study shows that the lateral of the piriformis muscle has a relatively greater distance from the skin. The center of the piriformis showed a greater diameter than other two portions. We found that the distance of the piriformis from subcutaneous tissues was correlated with BMI, but the diameter of the piriformis was not affected by BMI. These measurements can be used as a reference for determining the piriformis injection site in patients with piriformis syndrome. The Korean Pain Society 2011-06 2011-06-03 /pmc/articles/PMC3111565/ /pubmed/21716616 http://dx.doi.org/10.3344/kjp.2011.24.2.87 Text en Copyright © The Korean Pain Society, 2011 http://creativecommons.org/licenses/by-nc/3.0/ This is an open-access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0/), which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
spellingShingle Original Article
Park, Chan Hong
Lee, Sang Ho
Lee, Sang Chul
Park, Hahck Soo
Piriformis Muscle: Clinical Anatomy with Computed Tomography in Korean Population
title Piriformis Muscle: Clinical Anatomy with Computed Tomography in Korean Population
title_full Piriformis Muscle: Clinical Anatomy with Computed Tomography in Korean Population
title_fullStr Piriformis Muscle: Clinical Anatomy with Computed Tomography in Korean Population
title_full_unstemmed Piriformis Muscle: Clinical Anatomy with Computed Tomography in Korean Population
title_short Piriformis Muscle: Clinical Anatomy with Computed Tomography in Korean Population
title_sort piriformis muscle: clinical anatomy with computed tomography in korean population
topic Original Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3111565/
https://www.ncbi.nlm.nih.gov/pubmed/21716616
http://dx.doi.org/10.3344/kjp.2011.24.2.87
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