The research on inflammatory reaction and differential expression of microRNAs in lung caner / 国际肿瘤学杂志

MicroRNAisatypeofsingle-strandednon-codingRNA,directlybondingtothecomplemen-tary target gene mRNA.That leads to the inhibition of mRNA translation of the target molecule in order to reduce expression of the target gene.MicroRNAs are not only involved in the regulation of inflammatory reac-tion,but also play important roles in the formation of neoplasm.The researches showing that the inflammatory reaction interacting with miRNAs results in the differential expressions of microRNAs in lung cancer have been widespreadly concerned.Along with the deepening of the research on the mechanisms of inflammatory reaction and differential expression of microRNAs,it will provide new strategies for the prevention,diagnosis and treat-ment of lung cancer.

Reconstruction of delayed acetabular fractures / 中华骨科杂志

Objective To discuss the surgical technique of delayed acetabular fractures and its possible prognosis factors.Methods From April 2001 to November 2008,61 patients with delayed acetabular fractures were surgically treated.There were 47 males and 14 males,with an average age of 38 years.According to Letourael classification,16 simple fractures included 7 cases of posterior wall fractures,2 of posterior column fractures,1 of anterior column fractures and 6 of transverse fractures.Forty-five patients with mixed fractures included 3 cases with both fractures posterior column and wall,7 of transverse and posterior wall fractures,4 of T-shape fractures,6 of posteriorly semi-transverse fractures and 25 of both-columns fractures.Fifty-two patients suffered from traffic accident;6 patients were caused by falling from height and 3 suffered from crush injuries.Brain injuries occurred in 11 cases,thorax-abdominal injuries in 15,urinary tract injuries in 7,multiple fractures in 25.The injury of sciatic nerve was found in 3 patients preoperatively.The average interval form injury to surgery was 39 days.A single approach was employed in 13 cases,and combined antero-posterior approaches were employed in 48.The operation time was (248±45) min with a blood loss of (2160±100) ml averagely.Results The average follow-up was (61±8) months.The clinical result was evaluated by Matta reduction criteria,modified Merle d'Aubingne and Postel scoring system.Anatomical reduction was achieved in 45 cases;however,13 were unsatisfactory and 3 were poor.For clinical results,38 were graded as excellent,13 as good,6 as fair and 4 as poor.Osteonecrosis of the femoral head occurred in 3 cases (4.9%),and heterotopic ossification developed in 28 cases (45.9%).Additionally,4patients (6.6%) had a transient sciatic nerve paralysis.Conclusion Open reduction and internal fixation is a liable method for delayed acetabular fractures.Single approach is suitable for simple fractures;in principle and combined approaches are for compound delayed acetabular fractures.The reduction quality is closely related to surgeon's experience.

Analysis of factors related to free vascularized fibular grafting for avascular necrosis of the femoral head / 中华显微外科杂志

is lesion size and staging in pre-operative and etiologies are the risk factors associated with postoperative progression.

Operative treatment of bi-column acetabular fractures / 中华创伤骨科杂志

Objective To probe into the operative techniques and clinical outcomes of treating bi-columnar acetabular fractures. Methods From April 2001 to December 2006, 609 cases undergoing operation for aeetabular fractures were followed up. Of them, 193 eases, 147 males and 46 females with an average age of 34.4 years, were of bi-columnar type. Their complications involved the articular cartilage of the femoral head in 37, eranioeerebral trauma in 31, injury to bladder and/or urethra in 27, injury to thorax and/or abdomen in 68, injury to pelvis and/or sacroiliac joint in 59, and injury to sciatic nerve in 11. The interval between injury and surgery was within 1 week in 15 cases, within 2 weeks in 121, within 3 weeks in 34, and beyond 3 weeks in 23. A single ilioinguinal approach was adopted for 4 cases and combined ap-proaches for 189. Results The mean operating time was 238 (150 to 330) minutes, and the blood loss averaged 1453 (450 to 4400) mL. The mean follow-up period was 44.2 (14 to 84) months. All the eases were evaluated by Matta reduction criteria, X-ray manifestations and the modified Merle d'Aubingne and Postel clinical scoring. One hundred and sixty-eight patients got anatomical reduction, 17 unsatisfactory reduction, and 8 poor reduction. The X-ray manifestations were excellent in 162 patients, good in 16, fair in 8, and poor in 7. The clinic results were excellent in 152 patients, good in 27, fair in 9, and poor in 5. The Kendall coefficient correlation between reduction and clinical outcome and that between reduction and X-ray manifes-tation were 0.74 and 0.77, respectively. Ectopic ossification happened in 77 eases and transient post-operative sciatic nerve paralysis occurred in 3. Conclusions The combined approaches facilitate exposure and synergetie reduction of the bi-colunmar fractures of acetabulum. Reduction of the acetabular roof is essential to restoration of the normal contour of the acetabulum. Reduction bears a positive correlation to the clinical results as well as experience of surgeons.

Treatment of delayed acetabular fractures / 中华创伤骨科杂志

Objective To discuss the surgical treatment of delayed acetabular fractures and factors that affect the clinical outcomes. Methods From February 2001 to July 2005, 37 cases of delayed acetabular fractures were surgically treated. There were 22 males and 15 females, with an average age of 36.8 years (17 to 58). 10 cases were simple fractures and 27 complicated ones. The interval between injury and surgery averaged 44.8 days (21 to 399 days). 6 cases were treated through Kocher- Langenbeck approach, 1 ilio- inguinal approach, 2 extended ilio- inguinal approach, and 28 combined approaches. The mean operation time was 226 min (120 to 490 min). The average blood loss was 1 798 mL. Results The mean follow- up period was 18.9 months (6 to 56 months). Evaluation was conducted with Matta' s reduction criteria and modified D’ Aubigne and Postel clinical scoring. Reduction was anatomical in 31 cases, unsatisfactory in 4 and poor in 2. Clinical outcomes were rated as excellent in 21, good in 9, fair in 5 and poor in 2. There was 1 case of femoral head necrosis. Heterotopic ossification developed in 11 cases. In addition, transient paralysis of the sciatic nerve happened in 4 patients. Conclusions In principle, combined or extended ilio- inguinal approach should be reserved for the delayed acetabular fractures with the exception of simple fractures of posterior wall or/and posterior column, anterior wall and anterior column which can be managed by a single approach. The occurrence of arthritis correlates with the severity of the fracture. No direct relation has been found in this series between femoral head necrosis and femoral head dislocation before operation. Severity of fracture, interval between injury and surgery, and skills of orthopedists determine the clinical outcome, operation duration, and perioperative blood loss.