Diagnostic Value of Ischial Spine Sign in Patients with Acetabular ...
2018年7月24日 · Acetabular Retroversion (AR) is a hip disorder and one of the causes of pain in this area. Evaluation of positive Cross Over Sign (COS) on AP X-Rays of the hip is currently the best method of diagnosis of AR. Several studies have measured co-existence of Ischial Spine Sign (ISS) in patients with AR.
Ischial Spine Sign Reveals Acetabular Retroversion in Legg …
2011年1月29日 · The prominence of the ischial spine (PRIS) sign, which reflects retroversion, can be observed before ossification of the anterior and posterior walls in a skeletally immature patient and could help determine whether the retroverted acetabulum is present before or after head involvement in patients with LCP disease.
Reliability of radiographic signs for acetabular retroversion
Five orthopedic surgeons (o1 to o5) rated the crossover sign, ischial spine sign and posterior wall sign on X-rays of 40 hip joints. Also, we determined the rater’s experience in recognizing acetabular retroversion with a questionnaire and correlated intraobserver reliability to the calculated experience score.
The Ischial Spine: A Radiographic Sign for Acetabular Retroversion
Kalverer 6 confirms that the crossover sign and the prominence of the ischial spine into the pelvis are reliable findings confirming the presence of acetabular retroversion. Retroversion of the acetabulum is also associated with an externally rotated hemipelvis, which leads to protrusion of the ischial spine into the pelvis on the AP projection.
The Ischial Spine Sign: Does Pelvic Tilt and Rotation Matter?
The presence of an ISS depends on the individual pelvic orientation as does acetabular retroversion. The more the tilt and ipsilateral rotation of the pelvis, the more the ischial spine will protrude into the true pelvis. The ISS is a valid sign for diagnosing acetabular retroversion independent of the pelvic tilt and rotation.
Radiopaedia.org, the peer-reviewed collaborative radiology …
ƒËoQÔ“V뇋(êC€FÊÂùû#d˜û µVÿ9ItÇó‡‚3%—eïPU3ÐÐË4 L ÝoçÈÒ•- %#É ÅrÎO ýtÙ“t^”½KMû>w µ±»&± )ê´M é9.Ͻc¿ÓåR5 pÐ •¬ª ò ’ „ måó£ìÿÿË,Ÿ;$€ "Ì€ÌÚÆ ÐÈÌ ß{ß Õ] º% VZ#‡ni€´Ò}÷½ª®*I3-mj KŽ G vÇ ìÜ `ÆZ§ ´gÆ!k ràÕ²ý 3ü!£€þ12ú€á ÿcLðîÝʃˆ …
Reliability of radiographic signs for acetabular retroversion
2010年5月10日 · Five orthopedic surgeons (o1 to o5) rated the crossover sign, ischial spine sign and posterior wall sign on X-rays of 40 hip joints. Also, we determined the rater’s experience in recognizing acetabular retroversion with a questionnaire and correlated intraobserver reliability to the calculated experience score.
Acetabular retroversion: Diagnosis and treatment - EFORT Open …
2018年11月12日 · Acetabular retroversion (AR) consists of a malorientation of the acetabulum in the sagittal plane. AR is associated with changes in load transmission across the hip, being a risk factor for early osteoarthrosis. The pathophysiological basis of AR is an anterior acetabular hyper-coverage and an overall pelvic rotation.
Ischial spine projection into the pelvis : a new sign for acetabular ...
Femoroacetabular impingement may occur in patients with so-called acetabular retroversion, which is seen as the crossover sign on standard radiographs. We noticed when a crossover sign was present the ischial spine commonly projected into the pelvic cavity on an anteroposterior pelvic radiograph.
Ischial Spine Sign Reveals Acetabular Retroversion in Legg-C ... - LWW
The prominence of the ischial spine (PRIS) sign, which reflects retroversion, can be observed before ossification of the anterior and posterior walls in a skeletally immature patient and could help determine whether the retroverted acetabulum is present before or after head involvement in patients with LCP disease.