Snapping hip caused by a venous hemangioma of the gluteus maximus muscle: a case report
© Lin et al; licensee BioMed Central Ltd. 2008
Received: 10 March 2008
Accepted: 16 December 2008
Published: 16 December 2008
Snapping hip, or coxa saltans, is defined as a clinical condition where a usually painful, audible snap occurs during hip flexion and extension. Its causes can be divided into external, internal or intra-articular origin. Accurate diagnosis is a prerequisite to successful treatment. We report a rare cause of snapping hip which is different from any previously reported cases.
A 23-year-old man presented to us with right hip pain of more than 10 years duration. Atrophy of the right gluteus maximus with snapping and tenderness were also noted. The imaging study revealed a focal intramuscular lesion in the lateral portion of the right gluteus maximus muscle. Surgery was performed and pathological examination concluded this mass to be a venous hemangioma.
Intramuscular hemangioma, though rare, should be considered in the differential diagnosis of a snapping hip even though muscle fibrosis is most frequently encountered.
A snapping hip, or coxa saltans, is characterized by a usually painful snapping phenomenon during hip flexion and extension. The causes of a snapping hip can be grouped into external, internal or intra-articular origin . Since each cause represents a distinct pathogenesis and may consequently require different surgical interventions, accurate diagnosis is a prerequisite to successful treatment [2–7].
We report a relatively rare cause of a snapping hip. The etiology of the snapping hip of this 23-year-old man had been misinterpreted as muscle fibrosis, the most common cause for this symptom, for more than 10 years. Interestingly, the preoperative assessment and pathological findings were subsequently demonstrated to be different from any previously reported causes. The cause turned out to be an intramuscular tumor located close to the gluteus maximus insertion around the greater trochanter.
A 23-year-old Taiwanese man, who had suffered from right hip pain for more than 10 years, requested an orthopedic consultation. He stated that a computed tomography (CT) examination 10 years ago for hip pain disclosed no abnormal findings. However, the hip pain persisted and radiated to the buttock intermittently, especially when he adducted and flexed his right hip joint. The pain could be temporarily relieved by either abduction or the use of painkiller medication.
The most common type of snapping hip is the external type caused by the iliotibial band sliding over the greater trochanter [1, 7]. The iliotibial band remains posterior to the greater trochanter when the hip is extended. As the hip moves into flexion, the iliotibial band, with assistance from the underlying bursae, glides smoothly over the greater trochanter to the anterior position. However, when the posterior portion of the iliotibial band or the anterior border with the gluteus maximus becomes thickened, this results in snapping of the tendon over the greater trochanter [8, 9]. In such a case, Z-plasty is the most common surgical procedure for correcting an external snapping hip [2, 3].
A tumor in the gluteus maximus muscle might mechanically irritate the smooth movement between the iliotibial band and the greater trochanter, or cause a tight tensor fascia lata, mimicking a snapping hip. However, very few cases have been reported concerning the relationship between a local tumor, not of intramuscular origin, and a snapping hip, except in 2005 when Sanshiro et al. reported a patient with external snapping hip caused by an osteochondroma of the proximal femur . The symptoms disappeared after surgical resection of the osteochondroma.
In our patient, the hemangioma grew in the lateral part of the gluteus maximus muscle insertion superficial to the greater trochanter and disturbed the smooth movement of the iliotibial band over the greater trochanter. Such an etiology has not been reported before in the literature.
Skeletal muscle hemangioma is probably the most common form of hemangioma of deep soft tissue, and might be located in the retroperitoneum, mesentery or muscles of the lower extremities. Nevertheless, it is rare when considering the spectrum of benign vascular neoplasms . It accounts for only 0.8% of all hemangiomas and, when it does occur, it affects the lower extremity most often .
According to histological subtyping, haemangiomas can be divided into capillary, cavernous and venous types. A venous hemangioma is rare and is characteristically present during adult life . Pain is the cardinal symptom occurring in 60% of cases . In our patient, a snapping hip was an extraordinarily rare presentation of a venous haemangioma. The crucial image modality is MRI while the choice of treatment is surgical excision .
An intramuscular hemangioma, though rare, should be considered in the differential diagnosis of a snapping hip even though muscle fibrosis is the most frequent cause.
Written informed consent was obtained from the patient for publication of this case report and any accompanying images. A copy of the written consent is available for review by the Editor-in-Chief of this journal.
- Allen WC, Cope R: Coxa saltans: The snapping hip syndrome. J Am Acad Orthop Surg. 1995, 3: 303.View ArticlePubMedGoogle Scholar
- Brignall CG, Stainsby GD: The snapping hip: treatment by Z-plasty. J Bone Joint Surg Br. 1991, 73: 253-254.PubMedGoogle Scholar
- Provencher MT, Hofmeister EP, Muldoon MP: The surgical treatments of external coxa saltans (the snapping hip) by Z-plasty of the iliotibial band. Am J Sports Med. 2004, 32: 470-476. 10.1177/0363546503261713.View ArticlePubMedGoogle Scholar
- Ilizaliturri VM, Martinez-Escalante FA, Chaidez PA, Camacho-Galindo J: Endoscopic iliotibial band release for external snapping hip syndrome. Arthroscopy. 2006, 22 (5): 505-510.View ArticlePubMedGoogle Scholar
- Gruen GS, Scioscia TN, Lowenstein JE: The surgical treatment of internal snapping hip. Am J Sports Med. 2002, 30: 607-613.PubMedGoogle Scholar
- Ilizaliturri VM, Villalobos FE, Chaidez PA, Valero FS, Aguilera JM: Internal snapping hip syndrome: treatment by endoscopic release of the iliopsoas tendon. Arthroscopy. 2005, 21 (11): 1375-1380.View ArticlePubMedGoogle Scholar
- Yamamoto Y, Hamada Y, Ide T, Usui I: Arthroscopic surgery to treat intra-articular type snapping hip. Arthroscopy. 2005, 21 (9): 1120-1125.View ArticlePubMedGoogle Scholar
- Nuccion Stephen, Hunter David, Finerman Gerald: Snapping hip syndrome. Chapter 25 – Hip and Pelvis. DeLee & Drez's Orthopaedic Sports Medicine: Principles and Practice. Edited by: DeLee JC, Drez D, Miller MD. 2003, Philadelphia, PA: Saunders, 1447-1448. 2Google Scholar
- Scharberg JE, Harper MC, Allen WC: The snapping hip syndrome. Am J Sports Med. 1984, 12: 361-10.1177/036354658401200504.View ArticleGoogle Scholar
- Sanshiro I, Yasuo N, Takao M, Shunichi R, Syunsuke H: An external snapping hip caused by osteochondroma of the proximal femur. Mod Rheumatol. 2005, 15: 432-434. 10.1007/s10165-005-0433-7.View ArticleGoogle Scholar
- Intramuscular hemangioma. Enzinger and Weiss's Soft Tissue Tumors. Edited by: Weiss SW, Enzinger FM, Goldblum JR. 2001, St. Louis: Mosby, 869-872. 4th edition.Google Scholar
- Wild AT, Raab P, Krauspe R: Hemangioma of skeletal muscle. Arch Orthop Trauma Surg. 2000, 120: 139-143. 10.1007/PL00013761.View ArticlePubMedGoogle Scholar
- Weiss SW, Sobin LH: Histological Typing of Soft Tissue Tumors. 1994, Berlin: Springer-VerlagView ArticleGoogle Scholar
- Allen PW, Enzinger FM: Hemangioma of skeletal muscle. An analysis of 89 cases. Cancer. 1972, 29: 8-22. 10.1002/1097-0142(197201)29:1<8::AID-CNCR2820290103>3.0.CO;2-A.View ArticlePubMedGoogle Scholar
This article is published under license to BioMed Central Ltd. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.