[Objective]To assess the safety and clinical result of Osteoset artificial bone and autogenetic bone grafting ccmbined with internal fixation after radical debridement in the treatment of spinal tuberculosis.[Method]From April 2004 to May 2006,24 cases with spinal tuberculosis were treated with radical debridement,Osteoset artificial bone and autogenetic bone grafting combined with internal fixation.Radiographs(X-rays and CTs) were analyzed to access bony fusion and deformity correction.[Result]All the patients acquired satisfactory incision healing without fever.The follow-up period ranged from 6 to 24 months(mean 15 months).There was no recurrence of the disease or loose instrumentation.The average Cobb's angle correction was(15.2??6.7?).The rate of fusion was 95.8% 3 month after operation,while it was 100% 6 month after operation.[Conclusion]Osteoset artificial bone can avoid the complications of donor bone site.The early clinical outcome is satisfying.

Objective To investigate the therapeutic effect of VSD combined with external fixator in the treatment of open tibial and fibular fractures in Tibet plateau. Methods From August 2014 to August 2015, totally 16 cases of open tibial and fibular fractures were treated in our department, including 12 males and 4 females with an average 39. 4 years-old. There were 4 cases of proximal and mid tibial fractures while 12 cases were distal fractures. Debridement, vacuum sealing drainage combined with external fixator for stabilization of fractures was performed in all patients after general condition was improved. A vacuum sealing drainage change or second stage wound closure or soft tissue coverage was undergone after 7 days. Bone union time by X-ray and complications were recorded. Results All wounds were healed by second stage. Twelve patients months were followed up ( by calling back to the hospital ) for an average 18 months ( 12 to 24 months ) , 4 cases were lost to follow-up. X-ray demonstrated that bone union was obtained at a mean 5. 5th month (3 to 7 months). There were 9 cases (75%) obtained a first phase of fracture healing, while 3 cases ( 25%) of delayed healing. Pin-track infection was occurred in two patients and was cured by conservative treatment. No complications of deep infection, graft skin or flap necrosis, malunion, nonunion or osteomyelitis was seen during follow-up. Conclusions Vacuum sealing drainage combined with external fixator for treatment of open tibial and fibular fracture in Tibet can rapidly and effectively stabilize the fracture, and simultaneously safely and effectively seal the wound, reduce the wound healing time, promote fracture healing and lower the complication rates.

Objective To analyze the associations between long-term outcomes of fresh femoral neck fractures treated with cannulated screws and the classification based on vertical neck (VN) angle.Methods A retrospective study was conducted of the 162 fresh femoral neck fractures treated with 3 cannulated screws at Department of Orthopaedics,The Sixth People's Hospital of Shanghai from January 2012 to December 2014.The relationships were analyzed using Logistic Regression between long-term complications and VN classification,including fixation failure,fracture nonunion and osteonecrosis of femoral head (ONFH).Results All the patients were followed up for an average of 25.7 months (from 6 to 36 months).Of them,151 obtained fracture union after an average of 4.5 months (from 3 to 9 months).Internal fixation failure occurred in 23 cases,nonunion of femoral neck in 11,ONFH in 21 and femoral neck collapse in 13.Logistic Regression analysis showed no significant associations between internal fixation failure,nonunion or ONFH and gender,age or reduction method (P ＞ 0.05) but significant associations of VN classification with fixation failure (P ＜ 0.001) and nonunion (P =0.001) and insignificant association of VN classification with ONFH (P =0.109).Conclusion VN classification,a new classification method for femoral neck fractures,may be closely related with incidences of fixation failure and nonunion.

Objective To investigate the advantage of the technique of static compression screws with medial support using one ordinary cannulated compression screw (OCCS) and 2 headless cannulated compression screws (HCCSs) in reducing complications in the treatment of vertical femoral neck fractures.Methods From December 2014 to July 2017,79 patients were treated at Department of Orthopaedics,The Sixth People's Hospital of Shanghai for vertical femoral neck fractures.They were 51 men and 28 women,aged from 20 to 65 years (average,49.1 years).Their injury involved 45 left sides and 34 right sides.Of them,37 were treated with one OCCS at the top and 2 HCCSs at the bottom of a triangle arrangement for fixation of the vertical femoral neck fracture (the experimental group);the other 42 were treated with 3OCCSs at a triangle arrangement for fixation of the vertical femoral neck fracture (the control group).Their fracture healing and complications were followed up at postoperative 6 weeks,3,6 12,18,24 months and any time of discomfort by anteroposterior and lateral X-ray films of the knee joint.Results The 2 groups were compatible due to insignificant differences between their preoperative general data (P ＞ 0.05).This cohort was followed up for 9 to 24 months (average,17.5 months).Of them,52 achieved fracture union.Of the 27 patients who failed,8 were in the experimental group (21.6％) and 19 in the control group (45.2％),showing a significant difference in the rate of failure between the 2 groups (P ＜ 0.05).In the experimental group,the rate of nonunion was 8.1％ (3/37),the rate of implant failure 18.9％ (7/37),and the rate of fermoral neck varus 8.1％ (3/37),all significantly lower than those in the control group [26.2％ (11/42),40.5％ (17/42) and 23.8％ (13/42),respectively] (P ＜0.05).Conclusion For treatment of vertical femoral neck fractures,the technique of static compression screws with medial support is not only easy but also leads to a lower rate of complications.