To tie in on what Chris has posted, the following are cases from the 39th Alabama wounded at Chickamauga. A special thanks to Dr. Keith Bohannon for sharing this information from the Confederate States Medical and Surgical Journal (Vol.1, No.5, May 1864), "Report of wounded treated in Field Hospital of Hindman's Division, Army of Tennessee, after the battle of Chickamauga." By Carlyle Terry, Chief Surgeon.
Case 12.-J.C. Minslett, private 39th Alabama; compound comminuted fracture thigh; amputation middle third; amputation lower third; constitution bad; lost much blood on the field. Died September 30.
Case 21.-J.M. Smith, private 39th Alabama; amputation army middle third; did not do well; had erysipelas for ten days, and wound not disposed to heal; left in the hands of the enemy November 26; will probably die.
Case 38.-Thomas Williams, private 39th Alabama; compound comminuted fracture thigh. No operation. Did not do well, and left in the hands of the enemy; will die.
Case 39.-Asa Johnson, private 39th Alabama; compound comminuted fracture thigh; treatment, double inclined plane; did well, and was sent to General Hospital November 16.
Note: Comminuted Bone Fracture
A comminuted fracture has more than two fragments of bone which have broken off. It is a highly unstable type of bone fracture with many bone fragments. (From pain.health-info.org/Pain/20Pages/factures.htm)