Obturator externus bursa
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Citation:
O'Shea P, Hacking C, Obturator externus bursa. Reference article, Radiopaedia.org (Accessed on 17 Jan 2025) https://doi.org/10.53347/rID-82449
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82449
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At the time the article was created Patrick O'Shea had no recorded disclosures.
View Patrick O'Shea's current disclosures
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Disclosures:
At the time the article was last revised Patrick O'Shea had no recorded disclosures.
View Patrick O'Shea's current disclosures
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The obturator externus bursa is situated over the posteroinferior aspect of the hip joint. It is a potential communication of the postero-inferior hip joint synovium between the ischiofemoral ligament and the zona orbicularis 1,2.
Related pathology
Obturator externus bursa may occur in patients with chronic hip synovitis and raised intra-articular pressure. Distension of the bursa leads to inferior displacement of the obturator externus muscle 1.
The overall prevalence of communication between the hip joint and the obturator externus bursa in the normal population remains unknown, but has been estimated to be less than 5.5% 3.
See also
References
- 1. Robinson P, White LM, Agur A, Wunder J, Bell RS. Obturator externus bursa: anatomic origin and MR imaging features of pathologic involvement. (2003) Radiology. 228 (1): 230-4. doi:10.1148/radiol.2281020819 - Pubmed
- 2. Souza P, Santos E. Bursae around the hip: anatomy, pathology, and mimics. (2014) doi:10.1594/ecr2014/C-0476
- 3. Ara Kassarjian, Eva Llopis, Richard B. Schwartz, Jenny T. Bencardino. Obturator externus bursa: prevalence of communication with the hip joint and associated intra-articular findings in 200 consecutive hip MR arthrograms. (2009) European Radiology. 19 (11): 2779. doi:10.1007/s00330-009-1476-5 - Pubmed
Incoming Links
Related articles: Anatomy: Lower limb
- skeleton of the lower limb
- joints of the lower limb
-
hip joint
- ligaments
- muscles
- additional structures
- hip joint capsule
- zona orbicularis
- iliotibial band
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hip bursae
- anterior
- iliopsoas bursa (iliopectineal bursa)
- lateral
- subgluteal bursae
- greater trochanteric bursa (subgluteus maximus bursa)
- subgluteus medius bursa
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- gluteofemoral bursa
- subgluteal bursae
- postero-inferior
- anterior
- ossification centers
-
knee joint
- ligaments
- anterior cruciate ligament
- posterior cruciate ligament
- medial collateral ligament
- lateral collateral ligament
- meniscofemoral ligament (mnemonic)
-
posterolateral ligamentous complex
- arcuate ligament
- patellar tendon and quadriceps tendon
- anterolateral ligament
- posterior oblique ligament
- oblique popliteal ligament
- medial patellofemoral ligament
- additional structures
- extensor mechanism of the knee
- groove for the popliteus tendon
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- anterior bursae
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- lateral bursae
- posterior bursae
- knee capsule
- lateral patellar retinaculum
- medial patellar retinaculum
- menisci
- pes anserinus (mnemonic)
- ossification centers
- ligaments
- tibiofibular joints
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ankle joint
- regional anatomy
- medial ankle
- lateral ankle
- anterior ankle
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- medial collateral (deltoid) ligament
- lateral collateral ligament
- additional structures
- ankle bursae
- ossification centers of the ankle
- variants
- regional anatomy
- foot joints
- subtalar joint
- mid-tarsal (Chopart) joint
-
tarsometatarsal (Lisfranc) joint
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- intermetatarsal joint
- metatarsophalangeal joint
- interphalangeal joint
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- spaces of the lower limb
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- tibiocalcaneus internus muscle
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