Objective To explore MSCT appearances of lung lacerating injury.Methods The MSCT findings of lung lacerating injury in 31 patients were analyzed retrospective.Results The lung lacerating injury of the 31 cases with 67 lesions in total was found,18 of whom were located on the back side of lung near the pleura,11 of whom had solitary lesion and 20 of whom had multiple ones. The MSCT findings included lung cavity in 9 eases,liquid airbag cavity in 1 7 and lung hematoma in 5 .The pulmonary contusion with different degrees was found in all 3 1 cases.Dynamic observation showed the cavities and hematoma could be transformed into each other.Conclusion MSCT is the best method for diagnosis and observation of lung lacerating injury and helpful for the guide of clinical treatment.

OBJECTIVETo evaluate clinical effects of repairing ankle and foot injuries with perforator-based propeller flaps.

METHODSFrom June 2012 to April 2014, 20 patients with soft tissue defects on the foot and ankle were treated by perforator-based propeller flaps, including 14 males and 6 females with an average age of (36.2±4.6) years old ranging from 8 to 64 years. Area of soft tissue defect varied from 5 cm×2 cm to 22 cm×7 cm. The time from injury to operation ranged from 8 to 90 days, with an average of(38.2±6.2) days. AOFAS scoring were applied to evaluate therapeutic effects.

RESULTSAll patients were followed up from 6 to 24 months with an average of(13.5±2.2) months. Appearance and quality of flap were good. Operation time was 90 to 210 min, with an average of(120±32) min. Nineteen flaps were survived successfully, the flap edge of 1 case was necrosis and healed after free skin grafting. A good contour was confirmed on the recipient area. The total AOFAS score was(93.1±10.0) at the final following-up, 14 cases obtained excellent results and 6 cases were good.

CONCLUSIONSPerforator-based propeller flaps for ankle and foot injuries has advantages of safe, effectivity and could receive good results.