Table 2.

Preoperative errors

Error	Clinical effect	Prevention	Detection	Remedy
Failure to place sandbag under hip of affected side	Causes difficulty accessing lateral aspect of the lower extremity	Have preoperative routine/checklist	If this step is missed, the surgeon will have difficulty preventing external rotation at the hip	Theoretically could be placed during the operation if sterility is maintained.
Failure to place and inflate tourniquet	This will lead to difficulties with hemostasis.	Have preoperative routine/checklist	Have preoperative routine/checklist, excessive bleeding	Theoretically could be placed during the operation if sterility is maintained.