Best of the Literature
Muscle Healing Under High Pressure? • Menstrual Cycles Do Not Affect Muscle Strength

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Paintball Popularity Explodes: Targeting Injury and Fitness Elements • ACEing Exercise Inspiration • Bowflex Exercise Machine Recall • Tai Chi and Proprioception Benefits

Posterior Knee Pain and Its Causes
A Clinician's Guide to Expediting Diagnosis
Physicians don't often encounter patients who report posterior knee pain. Identifying the source of pain can be difficult, because the anatomic structures aren't easy to elucidate, and the differential diagnosis is wide, ranging from Baker's cyst to tibial nerve entrapment. A list of several known pain generators provides a good road map for arriving at a quick and accurate diagnosis.
Julie A. Muché, MD; Paul H. Lento, MD

Bilateral Musculocutaneous Nerve Palsy From Strength Training
Musculocutaneous nerve palsy from repetitive biceps curls usually affects only the patient's dominant arm; however, in this case, the patient, an 18-year-old football player, experienced bilateral symptoms. The patient had noted poor performance and a loss of biceps muscle mass before seeking medical care.
Samuel O. Matz, MD; Gregg Nibbelink, ATC

An Uncommon Elbow Injury in a Baseball Player
A 21-year-old minor league catcher who fell and landed on his elbow while running to first base had swelling and decreased range of motion, yet no deformity or neurovascular compromise that would have suggested dislocation. Radiographs provided the main diagnosic clue and guided the course of treatment.
Christopher J. Mehallo, DO

Pearls
Test for Lumbosacral Radiculopathy • Easing Ingrown Toenail Removal

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