Iliocapsularis muscle in human fetuses

Elvan, Özlem; Aktekın, Mustafa; Şengezer, Ecem; Olgunus, Zeliha Kurtoğlu; Bayramoǧlu, Alp

doi:10.1007/s00276-019-02312-w

Cited by 8 publications

(30 citation statements)

References 23 publications

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“…Elvan et al . found that the iliocapsularis was consistently located lateral to the iliopsoas, deep to the rectus femoris, medial to the gluteus minimus, as well as overlying the anteromedial part of the capsule of the hip joint [ 13 ]. As such, it has now been recognized as an individual and constant muscle.…”

Section: Resultsmentioning

confidence: 99%

“…Elvan and colleagues included 21 formalin-fixed foetuses in their study [ 13 ], noting three different variations of the proximal attachment of iliocapsularis:…”

Section: Resultsmentioning

confidence: 99%

“…Iliocapsularis muscle length measured between 12 and 13 cm in 20 fresh adult cadavers [ 1 ]. Its length was identified to be longer in females than males during the foetal period ( P = 0.031) and acknowledged to be wider on the right side ( P = 0.029) [ 13 ].…”

Section: Resultsmentioning

confidence: 99%

“…corroborated this finding, describing its insertion just distal to the lesser trochanter [ 15 ]. Furthermore, during the foetal period the insertion of the iliocapsularis was consistently found to be distal to the lesser trochanter in all specimens [ 13 ].…”

Section: Resultsmentioning

confidence: 99%

“…Innervation of the iliopcasularis is achieved from the femoral nerve, by way of a small nerve branch arising as the femoral nerve crosses the superficial surface of the iliocapsularis following piercing of the iliacus [ 13 ].…”

Section: Resultsmentioning

confidence: 99%

See 4 more Smart Citations

The role of iliocapsularis in hip pathology: a scoping review

Saito

Khokher

Kuroda

et al. 2021

Journal of Hip Preservation Surgery

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The iliocapsularis is a relatively unheard-of muscle, located deep in the hip covering the anteromedial capsule of the hip joint. Little is known about this constant muscle despite its clinical relevance. The aims of this scoping review are to collate the various research studies reporting on the detailed anatomy and function of iliocapsularis and to demonstrate how inter-individual differences in iliocapsularis can be used as a clinical adjunct in guiding diagnosis and treatment of certain hip joint pathologies. A computer-assisted literature search was conducted based on Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines. Our review found 13 studies including 384 cases meeting our inclusion criteria. About 53.8% of the studies involved human cadavers. The current scoping review indicates the relevant anatomy of the iliocapsularis, being a small muscle which arises from the inferior border of the anterior inferior iliac spine and anteromedial capsule of the hip joint, inserting distal to the lesser trochanter. Therefore, based upon these anatomical attachments, iliocapsularis acts as a dynamic stabilizer by tightening the anterior capsule of the hip joint. Implications of this association may be that the muscle is hypertrophied in dysplastic or unstable hips. Determining the size of the iliocapsularis could be of conceivable use in patients with hip symptoms featuring signs of both borderline hip dysplasia and subtle cam-type deformities. Although future research is warranted, this study will aid physicians to understand the clinical importance of the iliocapsularis.

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Section: Resultsmentioning

confidence: 99%

“…Elvan and colleagues included 21 formalin-fixed foetuses in their study [ 13 ], noting three different variations of the proximal attachment of iliocapsularis:…”

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

See 3 more Smart Citations

The role of iliocapsularis in hip pathology: a scoping review

Saito

Khokher

Kuroda

et al. 2021

Journal of Hip Preservation Surgery

View full text Add to dashboard Cite

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Iliocapsularis: An exploration of the muscle and its omission in education

Breckling¹,

Katrikh

Jones

et al. 2022

Journal of Morphology

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Anterior hip joint musculature is classically characterized to include iliacus, psoas major, rectus femoris, and sartorius muscles. A lesser‐known muscle, iliocapsularis muscle (ICm), has made infrequent appearances in the literature for the last ~70 years, but potentially has important functional and clinical value. The purpose of this study is to review the historical prevalence of the ICm in peer‐reviewed literature (PRL), further explore the prevalence of the muscle in current anatomical textbooks (ATBs), characterize the muscle with a new series of dissections, assess the muscle's perceived importance to clinicians and educators, and comment on the possible functional significance of the muscle. The ICm was mentioned in 28 peer‐reviewed articles and the muscle was present in 518 of 521 (99%) dissected hips in 13 publications which assessed prevalence. In an audit of 30 recently published ATBs, three texts mentioned the ICm. In 28 anterior hip dissections performed in the current study, the muscle was present in all hips. Anatomy educators were surveyed to determine if the ICm was presently taught in their curricula, and clinicians of various specialties were surveyed regarding their perceptions of the ICm and its clinical relevance. The ICm inclusivity within anatomical curricula from educators reported 8.5%, while 4% of clinicians reported trainees should have an educational background of the ICm. This study confirms that while the ICm is present within PRL, and is ubiquitous amongst human‐donor dissection, the ICm is not mentioned in most ATBs and is absent in the vast majority of anatomical curricula. Lack of inclusion in curricula may lead to a perceived insignificance to currently practicing clinicians despite the potential functional importance at the hip. This discordance suggests that the ICm should be included in ATBs and anatomical curricula so that future clinicians can consider the ICm when evaluating and treating patients.

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Ultrasound and shear‐wave elastography characteristics of the iliocapsularis muscle in pincer‐type femoroacetabular impingement

Wang

Cui

et al. 2021

PM&R

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Background The iliocapsularis muscle is a structure of the anterior hip, which may play a key role in stabilizing the hip joint, but to our knowledge no studies exist describing ultrasound (US) and shear‐wave characteristics of this muscle. Objectives To investigate the anatomic dimensions and elasticity of the iliocapsularis muscle in patients with pincer‐type femoroacetabular impingement (FAI) and normal hips using gray‐scale US and shear‐wave elastography (SWE). Design Case‐control study. Setting Sports medicine and ultrasound department within a tertiary hospital. Participants Thirty‐three patients (33 hips) with pincer‐type FAI and 37 healthy volunteers (37 hips). Interventions Not applicable. Main Outcome Measures US parameters (anteroposterior diameter, transverse diameter and circumference) of the iliocapsularis muscle in patients with pincer‐type FAI and volunteers. Shear‐wave velocity and Young's modulus of the iliocapsularis muscle in patients with pincer‐type FAI and volunteers in both neutral and external rotation positions. Results Significant differences were not observed in the anatomic dimensions of the iliocapsularis muscle between patients with pincer‐type FAI and volunteers. The iliocapsularis muscle in patients with pincer‐type FAI had significantly lower shear‐wave velocity and Young's modulus than the volunteers (p < .05). The cutoff value of the maximum velocity in the external rotation position was 3.35 m/s, which separated pincer‐type FAI patients from volunteers and revealed the highest accuracy with sensitivity, specificity, and accuracy of 78.8%, 48.6%, and 64.3%, respectively. Conclusion The anatomic dimensions of the iliocapsularis muscle in pincer‐type FAI patients and volunteers were similar; however, iliocapsularis stiffness in patients with pincer‐type FAI was significantly lower than that of the volunteers. SWE can demonstrate altered muscle stiffness of the iliocapsularis muscle in pincer‐type FAI patients, which might be used to help make clinical decisions.

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Iliocapsularis muscle in human fetuses

Cited by 8 publications

References 23 publications

The role of iliocapsularis in hip pathology: a scoping review

The role of iliocapsularis in hip pathology: a scoping review

Iliocapsularis: An exploration of the muscle and its omission in education

Ultrasound and shear‐wave elastography characteristics of the iliocapsularis muscle in pincer‐type femoroacetabular impingement

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