Etienne A. Mejia, M.D.

Dr. Etienne A. Mejia is a board certified orthopedic surgeon with subspecialty fellowship training in arthroscopy, athletic injuries, sports medicine and rehabilitation.

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Dan R. Kraeger, D.O.

Dr. Dan R. Kraeger specializes in the non-operative treatment and rehabilitation of muscle and joint injuries, as well as back pain.

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Meet Our Doctors

What Causes Knee (Patellofemoral) Pain?

December 22, 2020

Etienne (“E.T.”) Mejia, MD Knee pain is one of the most common conditions prompting patients to present to my office. Although there are many causes of knee pain, many people have pain around the front of the knee, or what we call “patellofemoral pain.” The patella is the kneecap. It is a focal area of the extensor mechanism of the knee where many vital structures attach, such as the thigh muscles (the quads), patellar tendon, and the supporting shrouds on either side (retinacula), which function as checkreins to keep the patella centered. The patella glides on a groove on the femur, also known as the “thigh bone.” The patella provides the surrounding muscles a significant mechanical advantage to straighten the knee from a bent position, but also to prevent the knee from collapsing and folding over when weight is applied. It allows us to jump, land, squat, climb and descend stairs. It requires tremendous coordination with hip and ankle muscles for it to work in a chain effect in the lower extremity. Any deviation from the fine coordination in the lower extremity chain can lead to patellofemoral pain. Patients with Knee Pain

Posted in Blog, News and Events by Kathy Fredrickson | Tags:
December 7, 2020

By: ET Mejia, MD Frozen shoulder is a common cause of shoulder pain. It is poorly understood, and unfortunately, it is often missed or misdiagnosed and treated inappropriately. The frozen shoulder is characterized by stiffness and loss of shoulder range of motion accompanied by progressive shoulder pain. Sometimes the pain can be quite debilitating and significantly affect function and even sleep. Another term for “frozen shoulder” is adhesive capsulitis, although I believe that arthrofibrosis is a better diagnosis. “Arthro” means joint, and “fibrosis” means scarring or contraction. There are 2 main causes for shoulder stiffness and loss of joint motion: the frozen shoulder and an arthritic shoulder. The distinction is easily made by a simple x-ray. The frozen shoulder looks normal on x-ray, but the arthritic shoulder shows deformities, spurs and loss of normal joint space. The treatments are quite different for either condition, so it is important to get it right. Frozen shoulder commonly presents after a minor event or “tweak” that creates a smoldering discomfort and progressive motion loss, but it can also be a result of a significant shoulder injury, a fracture, or after surgery. Prolonged immobilization can predispose to frozen shoulder, although only some people get it and o

Posted in Blog, News and Events by Kathy Fredrickson
April 16, 2014

Frozen shoulder, also called adhesive capsulitis, is a thickening and tightening of the soft tissue capsule that surrounds the glenohumeral joint, the ball and socket joint of the shoulder. When the capsule becomes inflamed, scarring occurs and adhesions are formed. This scar formation greatly intrudes upon the space needed for movement inside the joint. Pain and severely limited motion often occur as the result of the tightening of capsular tissue.   There are two types of frozen shoulder: primary adhesive capsulitis and secondary adhesive capsulitis.   Primary adhesive capsulitis is a subject of much debate. The specific causes of this condition are not yet known. Possible causes include changes in the immune system, or biochemical and hormonal imbalances. Diseases such as diabetes mellitus, and some cardiovascular and neurological disorders may also be contributing factors. In fact, patients with diabetes have a three times higher risk of developing adhesive capsulitis than the general population. Primary adhesive capsulitis may affect both shoulders (although this may not happen at the same time) and may be resistant to most forms of treatment. Secondary (or acquired) adhesive capsulitis develops from a known cause, such as stiffness following a shoulder injury, surgery, or a prolonged period of immobilization.   With no treatment, the condit

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