Injury to the musculature of the hip is covered elsewhere but briefly, the glu-teus maximus, given its location, is prone to contusion injury, and muscle strains are uncommon in comparison to hamstring and quadriceps injury. In-sertional tendon injuries of the gluteus medius and minimus on the greater tro-chanter are often overlooked and more recently recognized as a source of pain that mimics trochanteric bursitis [78-80]. Calcific tendonitis/tendinosis may also be a source of lateral hip pain and has been associated with ''trochanteric bursitis'' and has been mistaken for malignancy in some cases because of inflammatory changes and adjacent bone changes [81,82].
There are numerous short rotators of the hip and isolated injury is infrequent. A case report of quadratus femoris muscle strain was recently reported that was diagnosed with MRI. This patient failed conventional rehabilitation for presumed hamstring injury but then subsequently improved after the rehabilitation program was adjusted based on the MRI findings [83,84] (Fig. 19).
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