Objective To compare the proximal femoral locking plate (LPFP) and proximal femoral intramedullary nail-spiral blade (PFNA) in minimally invasive internal fixation for elderly patients with intertrochanteric fractures.Methods One hundred and thirty patients aged over 60 years with intertrochanteric fractures were treated with minimally invasive internal fixation from January 2010 to June 2013,among them LPFP was applied in 69 cases and PFNA in 61 cases.The operation time,the numbers of intraoperative X-ray fluoroscopy,intraoperative blood loss,postoperative flow and decreased postoperative hemoglobin,postoperative complications,medical expenses,fracture healing time,postoperative hip Hariss function score were documented and compared between two groups.Results There were no significant differences in intraoperative blood loss [(132 ± 95) and (110 ± 79) ml],postoperative draining [(44 ± 16) and (41 ± 17) ml],decreased postoperative hemoglobin,fracture healing time [(10.5 ± 1.0) and (10.4 ± 1.5) weeks] and postoperative hip Hariss function score (87 ± 10 and 90 ± 8) between two groups.In LPFP group the number of intraoperative X-ray fluoroscopy (8.1 ±0.8 and 8.6 ± 0.9),hospitalization expenses,postoperative complications (7/69 and 16/61) were less than those in PFNA group (P＜0.05 or 0.01),however,the operation time was longer (P＜0.01).Conclusion LPFP may be a better choice in internal fixation for elderly patients with intertrochanteric fractures.

Objective To investigate the clinical outcomes of sternoclavicular hook plate in treatment of the anterior sternoclavicular joint dislocation. Methods A new device named sternoclavicular hook plate was devised by our team. Between May 2002 and Octorber 2009, 66 patients with sternoclavicular joint anterior dislocation were treated with the new device, among whom there were 47 males and 19 females,aged 21-68 years old (average, 32.6 years old). Twenty-one cases were caused by crush injury, 5 cases by falling and 40 cases by traffic accident. Anterior fracture-dislocation was found in 41 cases. According to the Allman system, there were 35 cases of type Ⅱ and 31 cases of type Ⅲ. Patients were evaluated with serial clinical and radiographic examinations. Rockwood score were used after the operation to assess the curative effect. Results The average operative time was 33 min (range, 20-48 min). The mean blood loss was 60 ml (range, 20-90 ml). There were no vascular or peripheral nerve injuries in the patients. All incisions healed smoothly. The X-ray and CT showed that the reduction of sternoclavicular joint and the location of internal fixation were satisfactory. All the 66 patients were followed up for 12-37 months (average, 17 months). There was no internal fixation failure, redislocation or other complications. The sternoclavicular hook plate was removed 12 months after operation. The mean Rockwood's score was 13.2 (8 to 15). There were excellent in 50cases, good in 15 cases, and fair in 1 case. Conclusion The sternoclavicular hook plate is a new, safe and liable technique for sternoclavicular fracture-dislocation. This new technique is helpful for early functional exercises.

ObjectiveTo investigate the accuracy of percutaneous iliosacral screw fixation in sacroiliac joint fracture-dislocation with minimally invasive guider with CT-guided.MethodsFrom January 2011 to May 2011,8 patients with sacroiliac joint fracture-dislocation were treated using percutaneous iliosacral screw fixation assist with minimally invasive guider in CT-guided,which included 5 males and 3 females,with the average age of 32 years (ranged from 26 to 56 years).All patients suffered with vertically unstable pelvic fractures.Bone traction was used in femoral condyle for 6 cases which displaced more than 2cm in sacroiliac joints.Patients were prone position on the CT bed.First sacroiliac joint CT-scan was performed,then marked the needle position on affected side buttocks after measure the best position and track of needle that expected on CT computer screen.According to the data of CT-scan,the angle of the devices was adjusted,which could control 3D direction of the minimally invasive guider,then insert the Kirschner wire into sacroiliac joint guided with the front end of the sleeve of the minimally invasive guider,confirmed the track of needle was excellent with CT-scan (3D),then the guider was moved out and put the hollow screw (dia 7.3 mm Synthes) into the sacroiliac joint along the Kirschner wire.ResultsAll 8 patients were successfully insert the Kirschner wire.The operation time was from 10 to 20 min(mean,14 min).All screws were in the position expected before surgery,no cut out of bone with the CT-scan immediately after operation,the shape of sacroiliac joint was restored satisfied and the fixation was stable.No numbness and radiation-like pain appeared among the operation in the lower limb for all patients,no case had vascular and neurological complications postoperative.ConclusionThe minimally invasive guider can improve the accuracy,security and simplicity of the percutaneous iliosacral screw fixation with CT-guided,and also avoid the deviation of needle insertion angle that determined by operator himself.