<prompt> Internal Fixation is primarily used in all except:Compound fracturesMultiple fracturesFractures in elderly patientFracture neck of femur  <response>: Usual treatment for open fractures is debridement more impoant and external fixator. Compound fractures treatment depend upon wound size and time duration since injury.Usually compound fractures fall into category III A Type and Method of fixation: Grade I Debridement and internal fixation by intramedullary nail and plate. Grades II, IIIA Within 6 hours of injury same as Grade I. After 6 hours same as grades IIIB and IIIc. Grades III B, III C Debridement and external fixation 