The functional and surgical relevance of the iliocapsularis muscle: an anatomical review
The iliocapsularis muscle covers the anterior aspect of the hip joint capsule. Although its anatomy has been describedthrough cadaveric and radiologic studies, its true function is unknown. The iliocapsularis could be involved in preventinganterior synovial impingement, a possibility supported by electromyography studies. Moreover, hypertrophy of the iliocapsulariscaused by hip dysplasia supports the proposal that it stabilizes the anterior aspect of the joint capsule. This review discussesthe clinical relevance of the iliocapsularis.
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- 1. Babst D, Steppacher SD, Ganz R, Siebenrock KA, Tannast M. The
iliocapsularis muscle: an important stabilizer in the dysplastic hip.
Clin Orthop Relat Res 2011;469:1728–34.
- 2. Pourcho AM, Sellon JL, Lachman N, Krych AJ, Smith J.
Sonographic appearance of the iliocapsularis muscle of the hip. PM
R 2015;7:94–6.
- 3. Lawrenson P, Grimaldi A, Crossley K, Hodges P, Vicenzino B,
Semciw AI. Iliocapsularis: technical application of fine-wire electromyography,
and direction specific action during maximum voluntary
isometric contractions. Gait Posture 2017;54:300–3.
- 4. Haefeli PC, Steppacher SD, Babst D, Siebenrock KA, Tannast M. An
increased iliocapsularis-to-rectus-femoris ratio is suggestive for instability
in borderline hips. Clin Orthop Relat Res 2015;473:3725–34.
- 5. Ward WT, Fleish ID, Ganz R. Anatomy of the iliocapsularis muscle.
Relevance to the surgery of the hip. Clin Orthop Relat Res
2000;(374):278–85.
- 6. Cruveilhier J. Trait d’anatomie descriptive. 2nd ed. Paris: Ancienne
Maison Bechet Jeune; 1843. p. 130–1.
- 7. Kamath AF. Bernese periacetabular osteotomy for hip dysplasia: surgical
technique and indications. World J Orthop 2016;7:280–6.
- 8. Bedi A, Galano G, Walsh C, Kelly BT. Capsular management during
hip arthroscopy: from femoroacetabular impingement to instability.
Arthroscopy 2011;27:1720–31.