Pelvic Avulsion Fracture
synonyms: ischial tuberosity fracture, ischial tuberosity avulsion fracture
Pelvic Avulsion Fracture ICD-9
Pelvic Avulsion Fracture Etiology / Epidemiology / Natural History
- Most commonly occurs at the ischial apophysis where the hamstrings insert.
- Generally occurs in adolescence. Rare otherwise.
Pelvic Avulsion Fracture Anatomy
- Hamstrings = Biceps(long head)[tibial n] and Biceps(short head[peroneal n]), Semitendinosus[tibial n], Semimembranosus[tibial n].
- All except short head originate from ischial tuberosity.
- Separate muscle become distinguishable 5-10cm form tuberosity.
- Complete avulsions generaly occur at the ishial tuberosity.
- Ischial apophysis is relatively weak in adolescences making ischail apophyseal avulsion fractures more common in adolescences.
- Ischail apophyseal secondary ossification center appears in early puberty and does not fuse until late adolescences. (Gidwani S, BMJ 2004;329:99).
Pelvic Avulsion Fracture Clinical Evaluation
Pelvic Avulsion Fracture Xray / Diagnositc Tests
Pelvic Avulsion Fracture Classification / Treatment
Pelvic Avulsion Fracture Associated Injuries / Differential Diagnosis
Pelvic Avulsion Fracture Complications
Pelvic Avulsion Fracture Follow-up Care
Pelvic Avulsion Fracture Review References
- Rossi F, Skeletal Radiology 2001;30:127
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