There is a condition called trochanteric bursitis which is very painful and disabling and is often thought by patients to be related to the hip joint and even to arthritis in the hip. When we see patients in the office with this condition they usually come in referring to the problem as arthritis.
After a careful history and physical examination, x-rays of the affected hip are usually taken. In many cases, these x-rays are perfectly normal. Patients are astounded that their hip can be so painful and the x-rays look normal. Pain often will radiate from the outer aspect of the hip, down the thigh to the knee or even below in some cases.
The condition of trochanteric bursitis can come on without any precipitating injury or anything that the patient remembers doing that might have caused it. Often times it can seem to appear over night. It causes the patient to limp and is very tender to the touch on the outer or lateral aspect of the hip. This is a very important point because pain from the hip joint itself usually would be in the front or the groin area and would cause pain in the front of the thigh. Arthritis in the hip also frequently causes limitation of motion of the affected joint whereas trochanteric bursitis, except for the discomfort that is precipitated by movement of the hip, is not associated with actual stiffness of the joint.
Trochanteric bursitis is sometimes associated with an additional inflammation in the lateral and somewhat posterior aspect of the hip, termed gluteus medius tendinitis. The two conditions often coexist.