Protective effects of new femoral reaming techniques (Reamer irrigator aspirator, RIA I and II) on pulmonary function and posttraumatic contusion (CT morphology) - results from a standardized large animal model.

摘要: Abstract Introduction The effects of reaming for preparation intramedullary fixation in long bone fractures have been widely studied. We compared pulmonary and systemic between conventional with reamer irrigator aspirator unreamed nailing an acute porcine trauma model a standardized femur fracture. Materials Methods In model, (moderate blunt chest trauma, abdominal injury femoral shaft fracture), the was submitted to after resuscitation normalization function. treatment groups included 3 types (Group RFN: Synream; group RIA1; aspirator, version 2005; RIA 2; 2019) were UFN). Pulmonary function measurements arterial partial carbon-dioxide pressure (paCO2 [kPa]) (baseline, post reaming, 2,4,6 h) volumetric measures contusion computer tomography (CT) (at 6 hrs.). Systemic inflammatory response measured at baseline every second hour until six hours trauma. Results This study 24 male animals, mean weight 50.76 ± 4.1 kg n = 6 per group). Group RFN developed significantly higher CO2 (pCO2) one when all other (7.4 ± 0.4 kPa versus 5.4 ± 0.6 1, 5.6 ± 0.4 2, 5.5 ± 0.5 UFN, p Conclusion Both 1 2 protect lung from induced dysfunction no effects, while negative more sustained reamed or nailing. II appear be value terms Safe Definitive Surgery (SDS) strategy.