Bone cement injection as vertebral augmentation therapy for osteoporotic vertebral compression fractures / 中国组织工程研究

BACKGROUND:Vertebroplasty with bone cement injection can achieve a correction of kyphosis, enhancement of vertebral strength, and elimination of vertebral lesions during reduction of the fracture. OBJECTIVE: To analyze the efficacy of vertebroplasty with bone cement injection on osteoporotic vertebral compression fracture. METHODS:Totaly 84 patients with osteoporotic thoracolumbar vertebral compression fractures (T6-L4), 37 males and 47 females, aged 58-80 years, were randomized into two groups: study group undergoing vertebroplasty with bone cement injection and control group subject to bed rest and conservative treatment (functional exercise of the back muscle). Visual analog scale score, Oswestry disability index and vertebral height were detected and compared between the two groups before and after treatment. RESULTS AND CONCLUSION:There was no difference in vertebral height, visual analog scale score and Oswestry disability index between the two groups before treatment. At 3 months after treatment, the vertebral height was (1.653±0.168) cm in the study group and (1.521±0.200) cm in the control group, with a significant difference (P 0.05). These findings suggest that the bone cement injection as vertebral augmentation therapy can rapidly relieve pain, improve patients' quality of life within a short term and restore the vertebral height in patients with osteoporotic vertebral compression fractures.

Clinical study on coracoclavicular ligament reconstruction with hook plate fixation combined with wire anchors anatom / 实用医学杂志

Objective To compare the effects of application of clavicular hook plate combined with wire anchors anatomical coracoclavicular ligament reconstruction and application of clavicular hook plate in the treatment of NeerII distal clavicle fracture and Tossy Ⅲtype~V acromioclavicular joint dislocation. Methods A retrospective analysis of the clinical data from June 2006 to June 2013. Total 73 cases patients suffered with Neer Ⅱtype distal clavicle fractures and Tossy Ⅲtype~V acromioclavicular joint dislocation. Of which , 41 cases were subjected to treatment with clavicular hook plate , 32 patients subjected to treatment of using clavicular hook plate combined with anchors .The incision length, operative time, postoperative complications, length of hospital stay and postoperative 1 month, 6 month shoulder VAS score of two groups were analyzed; the shoulder function of both groups after 1 month, 6 months were assessed by using Constant shoulder function assessment method. Results Surgical incision length and operational time between the two groups were statistically significant (P<0.05), while the amount of bleeding was not statistically significant. All patients were followed up . The two groups did not occur any complications such as loosening, decoupling, acromioclavicular joint dislocation and wound infections. Hospitalization time was 5~14 d (averaged 10d), no significant difference between two groups. 4 the shoulder Constant score and VAS scores showed no significant difference 1 months postoperation; 6 months after hook plate removed, VAS score and Constant shoulder score improved significantly in anchors hook plate group (P<0.05). Conclusion Anatomical coracoclavicular ligament reconstruction by application of hook plate combined with anchors is a good biomechanical model characterized with simple surgery , less trauma and good clinical outcomes , worthy of clinical application.

Multiple stepwise regression analysis on postoperative knee joint function limitation in complex femoral condyles fractures / 中国组织工程研究

BACKGROUND:Knee joint function limitation often occurs after internal fixation of complex femoral condyle fractures, but the mechanism and its influencing factors are also unclear. OBJECTIVE:To screen and analyze the relevant factors of knee joint function limitation after internal fixation of complex femoral condyle fractures. METHODS:We retrospectively summarized postoperative fol ow-up data of 6 and 12 months from 121 patients with complex femoral condyle fractures. Knee joint function recovery was evaluated according to Merchan criteria. A multiple stepwise regression analysis was carried out in terms of gender, age, causes, concomitant injuries, skin and soft tissue injury, fracture type, fixed method, operation time, postoperative plaster fixed situation, healing of postoperative incision, bone healing and postoperative functional exercises, to summarize the relevant influencing factors for knee joint function limitation. RESULTS AND CONCLUSION:Whether the knee joint function after internal fixation was limited acted as the dependent variable Y, and factors with statistical significance of the single factor analysis served as the independent variable X. We used the multiple stepwise regression analysis for multiple factors analysis. Results showed that the gender of patients (X1), with or without concomitant injuries (X3), soft tissue damage (X4) and operation time (X6), a total of four factors, could not be introduced into the model, suggesting that these four factors had no significant correlation with postoperative knee joint function limitation. Another eight factors could be introduced into the factor analysis model, showing that the cause of injury (X2), fracture type (X5), the choice of internal fixation (X7), with or without bone graft (X8), with or without postoperative plaster cast (X9), postoperative knee joint functional exercise or not (X10) and postoperative wound healing (X11), the degree of postoperative bone healing (X12) are closely related to postoperative knee joint function limitation in complex femoral condyles fractures.