Anomalous plantar intrinsic foot muscle attaching to the medial longitudinal arch: possible mechanism for medial nerve entrapment: a case report
Abstract Background Muscular variations are potentially symptomatic and may complicate imaging interpretation. Intrinsic foot musculature and extrinsic tendon insertion variations are common. Distinct supernumerary muscles are rare. We report a novel anomalous intrinsic foot muscle on the medial lon...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
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BMC
2021-02-01
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| Series: | Journal of Medical Case Reports |
| Subjects: | |
| Online Access: | https://doi.org/10.1186/s13256-021-02676-x |
| _version_ | 1818941326958264320 |
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| author | R. Claire Aland Alana C. Sharp |
| author_facet | R. Claire Aland Alana C. Sharp |
| author_sort | R. Claire Aland |
| collection | DOAJ |
| description | Abstract Background Muscular variations are potentially symptomatic and may complicate imaging interpretation. Intrinsic foot musculature and extrinsic tendon insertion variations are common. Distinct supernumerary muscles are rare. We report a novel anomalous intrinsic foot muscle on the medial longitudinal arch. Case presentation An accessory muscle was encountered on the medial arch of the right foot of a 78-year-old white male cadaver, between layers two and three of the foot intrinsics. It did not appear to be a slip or variant of a known foot muscle. This muscle consisted of two slips that ran transversely on the plantar aspect of the medial arch, crossing the medial transverse tarsal joint and attaching to the tuberosity of the navicular, the short and long plantar ligaments, and spring ligament. Conclusions The medial plantar vessels and nerve passed from deep to superficial between the two slips, and this suggests a possible location for medial nerve entrapment. |
| first_indexed | 2024-12-20T06:53:46Z |
| format | Article |
| id | doaj.art-a0d8dbb4b1044736a206464bfc681c11 |
| institution | Directory Open Access Journal |
| issn | 1752-1947 |
| language | English |
| last_indexed | 2024-12-20T06:53:46Z |
| publishDate | 2021-02-01 |
| publisher | BMC |
| record_format | Article |
| series | Journal of Medical Case Reports |
| spelling | doaj.art-a0d8dbb4b1044736a206464bfc681c112022-12-21T19:49:26ZengBMCJournal of Medical Case Reports1752-19472021-02-011511410.1186/s13256-021-02676-xAnomalous plantar intrinsic foot muscle attaching to the medial longitudinal arch: possible mechanism for medial nerve entrapment: a case reportR. Claire Aland0Alana C. Sharp1School of Rural Medicine, University of New EnglandInstitute of Life Course and Medical Sciences, University of LiverpoolAbstract Background Muscular variations are potentially symptomatic and may complicate imaging interpretation. Intrinsic foot musculature and extrinsic tendon insertion variations are common. Distinct supernumerary muscles are rare. We report a novel anomalous intrinsic foot muscle on the medial longitudinal arch. Case presentation An accessory muscle was encountered on the medial arch of the right foot of a 78-year-old white male cadaver, between layers two and three of the foot intrinsics. It did not appear to be a slip or variant of a known foot muscle. This muscle consisted of two slips that ran transversely on the plantar aspect of the medial arch, crossing the medial transverse tarsal joint and attaching to the tuberosity of the navicular, the short and long plantar ligaments, and spring ligament. Conclusions The medial plantar vessels and nerve passed from deep to superficial between the two slips, and this suggests a possible location for medial nerve entrapment.https://doi.org/10.1186/s13256-021-02676-xAnatomical variationMedial longitudinal archMedial nerve entrapmentPlantar intrinsic muscleCase report |
| spellingShingle | R. Claire Aland Alana C. Sharp Anomalous plantar intrinsic foot muscle attaching to the medial longitudinal arch: possible mechanism for medial nerve entrapment: a case report Journal of Medical Case Reports Anatomical variation Medial longitudinal arch Medial nerve entrapment Plantar intrinsic muscle Case report |
| title | Anomalous plantar intrinsic foot muscle attaching to the medial longitudinal arch: possible mechanism for medial nerve entrapment: a case report |
| title_full | Anomalous plantar intrinsic foot muscle attaching to the medial longitudinal arch: possible mechanism for medial nerve entrapment: a case report |
| title_fullStr | Anomalous plantar intrinsic foot muscle attaching to the medial longitudinal arch: possible mechanism for medial nerve entrapment: a case report |
| title_full_unstemmed | Anomalous plantar intrinsic foot muscle attaching to the medial longitudinal arch: possible mechanism for medial nerve entrapment: a case report |
| title_short | Anomalous plantar intrinsic foot muscle attaching to the medial longitudinal arch: possible mechanism for medial nerve entrapment: a case report |
| title_sort | anomalous plantar intrinsic foot muscle attaching to the medial longitudinal arch possible mechanism for medial nerve entrapment a case report |
| topic | Anatomical variation Medial longitudinal arch Medial nerve entrapment Plantar intrinsic muscle Case report |
| url | https://doi.org/10.1186/s13256-021-02676-x |
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