Internal snapping hip syndrome in dynamic ultrasonography.
Snapping hip syndrome is an audible or palpable snap in a hip joint during movement which may be accompanied by pain or locking. It is typically seen in young athletes performing activities requiring repeated extreme movements of the hip. It may also follow a physical trauma, intramuscular injections or surgeries. There are two main forms of snapping hip: extra- or intra-articular. Extra-articular snapping hip is elicited by an abnormal movement of specific tendons and is divided into two forms: internal and external. The internal form of snapping hip syndrome is attributed to an abrupt movement of an iliopsoas tendon against an iliopectineal eminence. Radiograph results in patients with this form of snapping tend to be normal. Dynamic ultrasound is the gold standard diagnostic technique in both forms of extra-articular snapping hip syndrome. The objective of the following text is to describe a step-by-step dynamic ultrasonography examination in internal extra-articular snapping hip syndrome in accordance to the proposed checklist protocol. To evaluate abrupt movement of an involved tendon, the patient needs to perform specific provocation tests during the examination. With its real-time imaging capabilities, dynamic ultrasonography detects the exact mechanism of the abnormal tendon friction during hip movement in a noninvasive way. It also allows for a diagnosis of additional hip tissue changes which may be causing the pain.
Department of Radiology, District Hospital of Orthopedics and Trauma Surgery, Piekary Śląskie, Poland.
Małgorzata
M
Piechota
Department of Radiology, District Hospital of Orthopedics and Trauma Surgery, Piekary Śląskie, Poland.
Jarosław
J
Maczuch
Department of Radiology, District Hospital of Orthopedics and Trauma Surgery, Piekary Śląskie, Poland.
Jarosław
J
Skupiński
Department of Radiology, District Hospital of Orthopedics and Trauma Surgery, Piekary Śląskie, Poland.
Karolina
K
Kukawska-Sysio
Department of Radiology, District Hospital of Orthopedics and Trauma Surgery, Piekary Śląskie, Poland.
Wojciech
W
Wawrzynek
dynamic ultrasonography; iliopsoas tendon; snapping hip syndrome
Sports Med Arthrosc. 2010 Jun;18(2):120-7
20473131
World J Orthop. 2015 Oct 18;6(9):688-704
26495246
AJR Am J Roentgenol. 2015 Sep;205(3):513-23
26102306
Clin Orthop Relat Res. 2011 Jan;469(1):289-93
20593254
J Ultrasound. 2012 Feb;15(1):42-9
23396604
Surg Radiol Anat. 2001;23(6):371-4
11963618
AJR Am J Roentgenol. 2008 Mar;190(3):576-81
18287424
Sports Health. 2009 Jul;1(4):293-300
23015886
Br J Radiol. 2012 Oct;85(1018):1343-53
22744321
Orthop J Sports Med. 2013 Aug 21;1(3):2325967113500638
26535241
AJR Am J Roentgenol. 2010 Sep;195(3):605-17
20729436
Clin Orthop Relat Res. 2010 Oct;468(10 ):2814-8
20054675
J Am Acad Orthop Surg. 1995 Oct;3(5):303-308
10790668
Sports Health. 2010 May;2(3):186-90
23015936
Am J Phys Med Rehabil. 2015 Jan;94(1):e10-1
25299537
Am J Sports Med. 2007 Jan;35(1):118-26
17021311