Obturator externus bursa: prevalence of communication with the hip joint and associated intra-articular findings in 200 consecutive hip MR arthrograms

Kassarjian, Ara; Llopis, Eva; Schwartz, Richard B.; Bencardino, Jenny T.

doi:10.1007/s00330-009-1476-5

Cited by 14 publications

(5 citation statements)

References 7 publications

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“…There is evidence of extensive osteoarthritic changes in all these 6 specimens and no arthritic changes noted in the rest of the specimens suggesting that the bursa is present in diseased hips rather than normal hips. This corresponds to the findings reported by Kassarjian et al (4). In their study they looked into 200 consecutive hip MR arthrograms and noted 11 cases of OE bursa.…”

Section: Discussionsupporting

confidence: 93%

“…We believe it has different functions dependent upon the position of the hip joint. Recently several reports were published regarding the obturator externus bursa and impingement syndrome after total hip replacement, which is of interest with regard to the OE anatomical relation with the hip joint/acetabulum (2-3-4). The purpose of the study is to describe the OE morphology and its anatomic relationship to the acetabulum.…”

Section: Introductionmentioning

confidence: 99%

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The Anatomy and Function of the Obturator Externus

et al. 2015

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There is limited knowledge regarding the anatomic relationships and functional anatomy of the Obturator Externus muscle (OE). It is described as a muscle which originates from the external bony margin of the obturator foramen with a cylindrical tendon which passes like a sling under the femoral neck and inserts in the trochanteric fossa. The primary aim of this study is to describe the OE morphology and its anatomic relationship to the acetabulum. A secondary aim is to postulate its action. Eighteen fresh human cadaveric hips were dissected to investigate the anatomy of the OE. A plastic model of the pelvis and femur was used to create a string model based on a technique previously described by Beck et al. The plastic model was used to determine the function of the OE.We conclude that the Obturator externus muscle helps to stabilise the head of the femur in the socket. The mechanical model demonstrated that the primary action of the obturator externus muscle was to externally rotate the femur when the hip was in neutral position and flexed at 90°. Its secondary function was as an adductor when the hip was in flexion.

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Section: Discussionsupporting

confidence: 93%

Section: Introductionmentioning

confidence: 99%

The Anatomy and Function of the Obturator Externus

et al. 2015

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“…Prior studies have investigated the human bursa [11, 12, 13, 14, 15, 16, 17, 18, 19], but the anatomical information of anserine bursa was limited. In this reason, The aim of this study was to identify the boundary of the anserine bursa to determine the recommended injection site and the shape of the insertion area of PA.…”

Section: Introductionmentioning

confidence: 99%

Pes anserinus and anserine bursa: anatomical study

et al. 2014

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This study investigated the boundary of anserine bursa with the recommended injection site and shape on the insertion area of pes anserinus (PA), with the aim of improving clinical practice. Eighty six legs from 45 Korean cadavers were investigated. The mixed gelatin solution was injected to identify the shape of anserine bursa, and then the insertion site of the PA tendons was exposed completely and carefully dissected to identify the shape of the PA. The sartorius was inserted into the superficial layer and gracilis, and the semitendinosus was inserted into the deep layer on the medial surface of the tibia. The number of the semitendinosus tendons at the insertion site varied: 1 in 66% of specimens, 2 in 31%, and 3 in 3%. The gracilis and semitendinosus tendons were connected to the deep fascia of leg. Overall, the shape of the anserine bursa was irregularly circular. Most of the anserine bursa specimens reached the proximal line of the tibia, and some of the specimens reached above the proximal line of the tibia. In the medial view of the tibia, the anserine bursa was located posteriorly and superiorly from the tibia's midline, and it followed the lines of the sartorius muscle. The injection site for anserine bursa should be carried out at 20° from the vertical line medially and inferiorly, 15 or 20 mm deeply, and at the point of about 20 mm medial and 12 mm superior from inferomedial point of tibial tuberosity.

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“…4). 64,65 The location of the obturator externus bursa along the obturator externus muscle at the inferior part of hip joint should help distinguish it from cysts developed in association with labral tears, which are usually located more cranially.…”

Section: Bursae Communicating With the Hip Jointmentioning

confidence: 99%

Hip Imaging: Normal Variants and Asymptomatic Findings

Omoumi¹,

Berg

2017

Semin Musculoskelet Radiol

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With the increasing use of imaging as a diagnostic tool for hip pain, more and more anatomical variants are detected, and more findings are seen in asymptomatic populations, especially in older individuals. The radiologist must be aware of these variants and asymptomatic findings to avoid interpretative errors and overdiagnosis. In this review, we cover frequently encountered anatomical variants and asymptomatic findings that can be found in the bony structures of the hip, the joint itself, as well as in the surrounding soft tissues.

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Obturator externus bursa: prevalence of communication with the hip joint and associated intra-articular findings in 200 consecutive hip MR arthrograms

Cited by 14 publications

References 7 publications

The Anatomy and Function of the Obturator Externus

The Anatomy and Function of the Obturator Externus

Pes anserinus and anserine bursa: anatomical study

Hip Imaging: Normal Variants and Asymptomatic Findings

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