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Abstract
Chest incisions have evolved over the past eighty years to the standard lateral thoracotomy commonly used today.The standard thoracotomy incision today is the posterolateral incision,but it has the disadvantage of cutting a large muscle mass.
Also ,a moderate amount of time is required to open and close the extensive incision.In the immediate postoperative period,mobility of the ipsilateral arm is limited by the injured muscle mass and pain.