ObjectiveTo investigate the radiological characteristics,morphological characteristics of fracture fragments and treatments of posterior bicondylar tibial plateau fractures.MethodsA total of 47 patients with posterior bicondylar tibial plateau fractures treated between March 2005 and February 2009 were enrolled in the study.Characteristics of fractures and morphologies of fracture fragments were measured precisely with CT-chip Starpacs system.A retrospective study was carried out on the therapeutic results of the 47 patients undergone lateral condylar plate and medial condylar lag screw fixation via anterolateral combined with anteromedial tibial plateau approaches.Results Posteromedial condylar fracture was split one with small displacement,but the fracture was unstable.In the meantime,the fracture fragments were inverted three prism in shape and remained quite intact.Posterolateral condylar fracture was compression one and was often associated with soft tissue injury of knee joints.According to the Rasmussen radiology score,the results were excellent in 24 patients,good in 18,fair in three and poor in two.According to the Rasmussen function score,the results were excellent in 13 patients,good in 27,fair in two and poor in five.ConclusionsThe morphous of posteromedial condylar fracture is similar with that of Hohl type E fracture.The posterolateral condylar fracture is compression one.Anterolateral combined with anteromedial approaches for posterior tibial plateau fractures allow stage Ⅰbone fusion with internal fixation,simultaneously repair recombined injuries and achieve excellent radiological and clinical results.

Objective To study the therapeutic efficacy of the chondroplasty with radiofrequency technique under arthroscope for osteoarthritic knees in the senile patients.Methods Thirty-six patients were divided randomly into control and test groups(in each with 18 patients).The patients suffered from osteoarthritis of knees.The control group confirmed and treated by knee arthroscope,which was subjected to debridement with routine technique.The test group was treated by chondroplasty with radiofrequency technique under arthroscope.Results The patients developed no infection or other complications.Better therapeutic results were obtained after follow up of 6 to 18 months.Conclusions Chondroplasty with radiofrequency technique under arthroscope for the osteoarthritic knees has the advantages of less injury,less bleeding,less complication and quick recovery.

Objective To discuss the nursing countermeasures of common problems in patients with spinal fracture. Methods All patients received evidence- based nursing in on:ler to tackle problems such as pain, paralysis, pulmonary infection, pressure ulcer, urinary tract infection and deep vein thrombosis. Results No one complicated with pulmonary infection, pressure ulcer and deep vein thrombosis, 2 with lower limb swelling and 3 with urinary tract infection. Conclusions Evidence- based nursing is the base of clinic nursing. It can not only improve the quality of nursing and benefit patients,but also can expand the nurses' knowledge.

Objective To introduce the methods and key points for the external fixation combinel with limited percutaneous internal fixation plus colostomy in the treatment of open pelvic fracture concomitant with perineal laceration.Methods Nine patients with open pelvic fractures concomitant with perineallaceration were treated by external fixator combined with limited percutaneous internal fixer plus colostomy. Data including injury details, management and outcomes were collected for comparison.Results All the patients survived and attained bony union except for two patients with local infection that was healed several days after repeated wound debridement and use of wide spectrum antibiotics. All the patients had good extremity function at the latest follow-up. Conclusion External fixation combined with limited percutaneous internal fixation plus colostomy is a reliable, safe and less invasive procedure for the treatment of open pelvic fractures concomitant with perineal open wound.

Objective To evaluate the clinical outcome in the treatment of humerus shaft comminuted fractures using limited open reduction and internal fixation combined with an external fixator.Methods Data of 80 patients with comminuted humerus shaft fractures treated from January 2005 to January 2013 were analysed retrospectively.All the patients underwent limited open reduction and internal fixation combined with an external fixator (treatment group) and open reduction and plate fixation (control group) according to the random number table.In the treatment group,there were 40 patients (28 males,12 females),at mean age of 33.5 years (range,21-54 years),with causes of injury including traffic accidents in five patients,falls in nine,crashes in seven and others in six.There were seven patients with open fractures and 33 with closed fractures.In the control group,there were 40 patients (25 males,15 females),at mean age of 32.9 years (range,19-55 years),with causes of injury including traffic accidents in 16 patients,tumbling in seven,crush in seven and others in ten.There were eight patients with open fractures and 32 with closed fractures.The operation time,intraoperative blood loss,bone union time and complications in both groups were recorded.Clinical efficacy was evaluated using the Stewart and Hundley standard.Results Mean follow-up was 19 months (range,15-24 months).Treatment and control groups showed significant differences in operation time [(55.5 ± 10.3) minutes vs.(120.5 ± 15.3) minutes],intraoperative blood loss [(120.4 ± 20.7) ml vs.(245.4 ± 26.7) ml] and bone union time [(11.6 ± 1.3) weeks vs.(14.9 ± 2.3) weeks] (P ＜ 0.05).Rate of incision infection was 8％ (3/40) in treatment group and 10％ (4/40) in control group (P ＞ 0.05).In treatment group the results were excellent in 31 patients and good in nine.In control group the results were excellent in 27 patients,good in nine,fair in one and poor in three.One patient with radial nerve injury after a second surgery for implant removal and two patients with osteomyelitis or bone nonunion were noted in control group.Conclusion Limited open reduction and internal fixation in combination with an external fixator is associated with small trauma,easy operation,short operation time,few bleeding,rigid fixation,early functional exercises and reduced bone nonunion for treatment of comminuted humerus shaft fractures,which exhibits great clinical value.

Objective:To establish a scoring system based on lumbar magnetic resonance imaging (MRI) images to evaluate bone mineral density and evaluate its correlation with T score of dual energy X-ray absorptiometry (DEXA).Methods:The clinical data of 82 patients with lumbar degenerative diseases who were admitted to the Clinical Medical College of Yangzhou University from January 2019 to August 2020 were analyzed retrospectively. According to the lower value of T value of femoral neck and total hip bone mineral density detected by DEXA, they were divided into normal bone mass group ( n=40) and abnormal bone mass group ( n=42). The vertebral body bone mass (VBQ) score of the patient was calculated by dividing the average signal intensity of L 1-4 vertebral body by the signal intensity of L 3 level cerebrospinal fluid on T 1 weighted image of MRI. The receiver operating characteristic (ROC) curve was drawn to evaluate the ability of VBQ score to distinguish between normal bone mass and abnormal bone mass and the accuracy of predicting the occurrence of abnormal bone mass. Further, the correlation between VBQ score and T value was determined by regression analysis. Results:The lowest T value measured by DEXA in the abnormal bone mass group were significantly lower than those in the normal bone mass group, and the VBQ score was significantly higher than that in the normal bone mass group(all P<0.001). The area under curve (AUC) of VBQ score for predicting abnormal bone mass was 0.93, the cut-off value was 2.98, with sensitivity 81.6%, and specificity 88.6%. The VBQ score was corrected with the lowest T value measured by DEXA ( r=-0.77). Conclusions:VBQ score could effectively distinguish normal bone mass from abnormal bone mass and was negatively correlated with the lowest T value of DEXA.

BACKGROUND:Pauwels Ⅲ femoral neck fracture is a typical unstable fracture characterized by high vertical shear force and high incidence of postoperative complications.At present,there are many fixation methods for Pauwels Ⅲ fracture,and there is no clear conclusion as to which internal fixation is the best fixation method for Pauwels Ⅲ femoral neck fracture in young adults. OBJECTIVE:To compare the clinical effect of three inverted triangle cannulated screws assisted transverse lag screws and femoral neck system in fixing Pauwels Ⅲ femoral neck fractures of young adults. METHODS:From May 2021 to December 2022,21 young and middle-aged patients with Pauwels Ⅲ femoral neck fracture were treated with three inverted triangle cannulated screws assisted by transverse lag screws and femoral neck system in Affiliated Hospital of Southwest Medical University.Of them,9 patients were treated with three inverted triangle cannulated screws and one transverse lag screws perpendicular to the fracture line as the 3+1 cannulated screw group and 12 patients were treated with femoral neck system as the femoral neck system group.The two fixation methods were compared in terms of operation time,intraoperative blood loss,total incision length,intraoperative fluoroscopy times,fracture healing time,and limb function. RESULTS AND CONCLUSION:(1)All patients were followed up.Patients in the 3+1 cannulated screw group were followed up for 10-25 months,with a mean of(17.44±4.30)months.The patients in the femoral neck system group were followed up for 8-24 months,with a mean of(15.58±4.68)months.(2)The intraoperative fluoroscopy times and Harris score at 3 months postoperatively in the femoral neck system group were better than those in the 3+1 cannulated screw group,and the difference was statistically significant(P<0.05).The intraoperative blood loss,total incision length,and femoral neck shortening distance in the 3+1 cannulated screw group were better than those in the femoral neck system group,and the differences were statistically significant(P<0.05).There was no significant difference in operation time,fracture healing time,and Harris score at the last follow-up between the two groups(P>0.05).(3)It is indicated that three inverted triangle cannulated screws assisted transverse lag screw and femoral neck system can achieve good clinical effects in the treatment of young and middle-aged Pauwels Ⅲ femoral neck fracture.The femoral neck system has fewer intraoperative fluoroscopy times and better early overall stability,while the 3+1 cannulated screw is more minimally invasive,easier to operate.Both fixation methods are worthy of clinical application and promotion,and can be selected according to the actual clinical situation.

Objective: To compare the clinical results between arthroscopic anchor suture bridge and Ethibond suture bone tunnel for anterior cruciate ligament (ACL) tibial avulsion fractures. Methods: A retrospective case control study was conducted to analyze the clinical data of 18 patients with ACL tibial avulsion fracture admitted to Wenzhou Central Hospital from June 2012 to June 2017. There were 14 males and four females, aged 12-57 years, with an average age of 31.4 years. According to the Meyers-McKeever classification, there were six patients with type II and 12 patients with type III. Seven patients underwent anchor suture bridge fixation (anchor group), and 11 patients underwent Ethibond suture bone tunnel fixation (Ethibond suture group). The operation time, range of motion (ROM) of knee joint, Lysholm knee score and International Knee Documentation Committee (IKDC) knee score of the two groups were compared before operation and 3, 6 and 12 months after operation. Results: All patients were followed up for 12-36 months, with an average of 20.18 months. The operation time of anchor group [(87.14±8.59)minutes]was longer than that of Ethibond suture group [(71.1±11.5)minutes](P<0.05). The ROM of anchor group and Ethibond suture group was (127.1±8.6)° and (124.1±7.4)° respectively at 3 months after surgery, showing no statistical difference between the two groups (P>0.05). But the functional knee scores (Lysholm score and the IKDC score) revealed better clinical results in anchor group [(91.9±3.0)points, (85.6±4.1) points respectively] than Ethibond suture group [(88.6±3.3)points, (79.9±4.9)points respectively] at 3 months after surgery (P<0.05). There were significant differences between before and after operation within two groups regarding the knee function scores including ROM, Lysholm knee score and IKDC score (P<0.05). Three months after operation, there were significant differences between the two groups in terms of the Lysholm score and IKDC score (P<0.05), but there were no statistical differences between two groups at 6 months and 12 months after surgery (P>0.05). Conclusions Both arthroscopic anchor and Ethibond suture can achieve plane fixation of fracture, but there is no significant difference in the long-term effect of improving knee joint mobility and restoring knee joint function between the two approaches. However, the anchor group can achieve early recovery of knee joint function.