Objective To discuss the clinical effects of open reduction and internal fixation with locking compression plate(LCP)to treat elderly women with comminuted distal radius fracture.Methods 32 elderly women(35 sides)with comminuted distal radius fractures were treated by open reduction and internal fixation with LCP from March 2002 to October 2004 in our department.Their mean age was 65 years old.According to AO classification,11 sides were type A3,15 sides type C2 and nine sides type C3.Volar approach was used in 32 sides and dorsal approach in three sides.Bone graft was applied for five sides.Results The follow-up period was 10 to 41 months(mean 21.5 months)and the union period was three to five months.According to Dienst criteria of joint functions,the result s showed that 13 sides were excellent,19 sides good,two sides fair and one side poor.Complications included wound dehiscence and superficial infection in five sides and median nerve injury in two sides.Conclusion The LCP method in this study is one of the good options to treat elder women with comminuted distal radius fractures.

Objective To investigate the clinical characteristics of postoperative spondylodiscitis after lumbar intervertebral disc herniation.Methods 9 cases with spondylodiscitis were reviewed,about their clinical symptoms,laboratory tests,bacteria culture,CT and MRI finging,etc.Results and Conclusion The clinical symptoms occurred 8~24 d after operation.Laboratory test and MRI were helpful for the early diagnosis.The outcome of both surgical and non-surgical treatment was satisfactory.

Objective To study the clinical results of early surgery for acute cervical spinal cord injury. Methods 24 cases of acute cervical spinal cord injury were treated with early surgery in our hospital from 1999 to 2002. The average interval from injury to surgery was 67 hours. The injured cervical segments were reduced, decompressed and fixed through anterior approach, posterior approach or anterior posterior approach. Results 22 cases got follow ups of 12 to 38 months (mean 18 months), but 2 cases were lost. 2 cases of the 11 patients of ASIA Grade A did not experience any restoration, but all the other patients got significant restoration and an average improvement of 1.8 ASIA grades. Conclusion Operation should be performed as soon as possible for acute cervical spinal cord injury, for good results can be achieved by early surgery.

10?) and delayed union of tibia in 4 sides. Conclusion Many factors can affect the prognosis of tibial Pilon fracture, but the key points for a successful operation are right procedure and timing of surgery.

Objective To explore the strategy and outcomes of surgical treatment of thoracic ossification of ligamentum flavum(OLF),especially combined with ossification of posterior longitudinal ligament,thoracic kyphosis and epidural adhesion.Methods Fifty-three cases of thoracic OLF from January 2003 to December 2009 were reviewed retrospectively.All patients were treated by the methods of en bloc resection of semi-facet and lamina.All patients were followed up for more than half an year,including 32 males and 21 females,aged from 43 to 73 years(average 54.7 years).The lesions located in upper thoracic for 18 patients,and in thoracolumbar for 35 patients.For multi-level or jumping OLF patients,the responsible levels were determined by combination of images and clinical symptoms.For multi-level OLF with ossification of posterior longitudinal ligament(OPLL)or thoracic kyphosis(＞50°),multi-level pedicle screw fixation and correction of kyphosis were performed.For dural adhesion patients,part of cerebrospinal fluid was released with a caudal incision of dural sac resulting in collapse and epidural arachnoid separation.Ossific and adhesion dura mater were removed with integrity of arachnoid.The surgical outcomes were evaluated with preoperative and postoperative thoracic Japanese Orthopaedic Association(JOA)score,Nurick grade and neurologic functional recovery ratio.Results Fifty-three cases were followed up for 6 months to 6 years,with an average of 18 months.The average preoperative JOA score was 4.3±2.3,which significantly increased to 8.3±1.8 after operation.Postoperative neurologic functional recovery rates were 11% to 80%(average 65.8%),including excellent in 18 cases,good in 20,fair in 10,and poor in 5.The excellent or good rate was 71.7%.The mean preoperative Nurick grade was 3.7(2-5 grade)and decreased to 2.3 grade after operation.Conclusion En bloc resection of semi-facet and lamina is a safe and effective method for treatment of thoracic OLF.For the patients with OPLL or kyphosis,pedicle screws fixation and kyphosis correction was beneficial for recovery of neurologic function of thoracic OLF patients.

Objective To investigate the osteogenic potential for size-critical bone defect of fibrin sealant combined with recombined human bone morphogenetic protein-2 (rhBMP-2) grafting and varied autologous bone marrow mesenchymal stem cells (BMSCs) implanting in vivo. Methods BMSCs were cultured and induced with osteogenic supplement (OS) medium. BMSCs with and without OS induction were collected and percutaneously autologous injected respectively into the 15 mm bone defect of experimental rabbit model. The grafts were BMSCs, osteo-induced BMSCs, BMSCs and osteo-induced BMSCs, BMP combined with fibrin sealant, 0.9% NaCl solution. Osteogenesis at the defect area was assessed with regular radiography, histology and biomechanics. Results The FS/BMP group and the BMSCs+osteo-induced BMSCs group achieved complete bone healing with medullary cavity united, with the most new bone formation and the maximal load among those groups. Conclusion The osteogenic potential of both osteo-induced BMSCs combined with BMSCs and FS/BMP are similar, which are superior to that of BMSCs or osteo-induced BMSCs along.

Objective To investigate the operative indications and operation techniques for augmentative plate fixation in treatment of femoral shaft atrophic nonunions subsequent to intramedullary fixation. Methods Twelve femoral nonunions after internal fixation with intramedullary nailing were treated with augmentative plate internal fixation and bone graft from June 1999 to June 2008. All femoral nonunions were caused by insecure fixation of the intramedullary nailing, in which a rotational instability of the fracture site was verified in all the patients during operation. Minimally invasive removal of the granulation tissue at fracture site and the sclerotic bone was dccorticated. The adequate lilac bone was tiled longitudinally on the nonunion gap and the cortical bone bed. The fixation involved the limited-contact dynamic titanium plate with 5-6 holes, 3.0 mm Kirschner wire and 4-6 double cortex cortical screw fixation.Protective weight-bearing was given after surgery and the tunction was evaluated at 1,3, 6 and 12 months with imaging. Results All patients were followed up for 7-26 months ( average 17.4 months), which showed radiological solid union (7-12 months, average 9.4 months) and clinical union (5-9 months, average 7.1 months ). The operation lasted for 50-120 minutes ( average 77.5 minutes), with blood volume of 150-350 ml ( average 252 ml). There were nine patients with bone pain, of whom the pain was relieved within one month in seven patients and three months in two. No infection, hardware loosening or breaking were found. Conclusion The plate augmentation and cancellous bone grafting leaving the nail in situ can be an effective solution for nonisthmal femoral nonunion, bone defect and failed exchange nailing.

ObjectiveTo compare the outcomes and indications between exchange nailing (EN) and augmentation plating (AP) with a nail left in situ for femoral shaft hypertrophic nonunion after femoral nailing. MethodsFrom April 1998 to June 2009, 20 patients with femoral shaft hypertrophic nonunions after femoral nailing were treated with EN (11 patients) and AP (9 patients) respectively. There were no significant differences between the two groups with respect to the patient's age, gender, associated injuries, anatomical location and type of femoral fracture. Patients were evaluated by imaging and clinical function at 1, 2, 3, 4,6, and 12 months after surgery, and then every year postoperatively, to observe the callus and the recovery condition of the affected limb function. Fisher exact test and t'-test were performed to compare the outcome and complications respectively. ResultsAn unpaired t'-test showed no significant differences with respect to follow-up time, operating time, intraoperative blood loss, postoperative drainage, length of stay, time to radiographic union, time to clinical union, and AAOS score between the two groups. The cost of hospitalizations in the EN group was higher than in the AP group(t'=16.4, P=0.013). Four nonunions in the EN group failed to achieve union, which 3 patients were subsequently treated with AP and simultaneous autogenous bone grafting and 1 patient was treated with nail dynamization. All 9 hypertrophic nonunions in the AP group obtained osseous union. Fisher exact test showed a higher nonunion rate of EN compared with AP (χ2=6.01 ,P=0.008). ConclusionEN has been an excellent choice for aseptic isthmal femoral nonunion without a large bone defect subsequent to intramedullary fracture fixation, and AP can be an effective solution in cases of nonisthmal femoral nonunion and bone defect and failed exchange nailing.

Objective:To investigate clinical efficacy of curved fenestration and drainage procedure for the treatment of nail root abscess.Methods:From June 2018 to October 2020, 72 patients with nail root abscess were included in Department of Dermatology, Henan Armed Police Corps Hospital. According to the size, location and severity of the abscess, minimally invasive curved fenestration and drainage procedure was performed under nerve block anesthesia to reduce the pressure and drain the pus. Dressing change was strengthened after surgery, and wound healing was monitored.Results:Among the 72 patients, there were 37 males and 35 females, and their ages varied from 39 to 80 years (average: 63 years) . They all received curved fenestration and drainage procedure. Fifteen days after surgery, 66 cases were cured, 6 obtained marked improvement, and the response rate was 100%. Lesions did not completely subside in 1 patient due to poor blood glucose control and small exposure area at the fenestration site, while the condition of other patients was effectively controlled. Telephone follow-up was conducted 3 months after surgery, and no obvious nail defects or deformed appearance was observed in any of the cases.Conclusion:Curved fenestration and drainage procedure is a simple approach for nail root abscess, with satisfactory efficacy.