Damage control orthopaedics: an in-theater perspective.

Damage control orthopaedics is well described for civilian trauma. However, significant differences exist for combat-related extremity trauma. Military combat casualty care is defined by levels of care.

Magnetic resonance imaging analysis of the subacromial space in the impingement sign positions.

External shoulder impingement is commonly diagnosed by passively moving the shoulder into various positions of elevation and internal rotation in order to perform impingement sign maneuvers. There is a lack of agreement among clinicians regarding the positions of the anatomic structures in the subacromial space when these maneuvers are performed. The purpose of this study was to use magnetic resonance imaging to identify and measure the changes in anatomic structures in the subacromial space as the arm was moved from complete rest to 160 degrees of forward flexion during the Neer and Hawkins impingement sign maneuvers.