Objective To evaluate the causes,prevention and treatment of mesh infection after abdominal wall hernia mesh repair.Methods The clinical data of 14 mesh infections admitted from De-cember 1997 to December 2013 were analyzed retrospectively.There were one case of inguinal hernia with Lichtenstein repair,eleven cases of inguinal hernia with preperitoneal repair,one case of incisional hernia with Bard Composix Mesh and 1 case of parastomal hernia with mesh repair above the abdominal muscle. Based on prothetic materials and infection status,the infection meshes were removed in 4 cases and open dressing change were operated in 10 cases.Results All patients were healed and discharged without peri-operative death.There was no hemorrhage and bladder injury during the procedures.The time of dressing change ranged from 3 weeks to 6 months,with a median of 4 weeks.All patients were followed up for 8 to 64 months.One patient had a recurrence of abdominal incisional hernia.Conclusion There are many fac-tors related to mesh infection after mesh repair and preventing mesh infection is the most important.Once the infection occurs,the management should be individualized.Antibiotic treatment and surgical drainage can be effective in most polypropylene mesh(PPM)infection However,infected expanded polytetrafluoro-ethylene(ePTFE)mesh should be removed completely.

Objective To evaluate the clinical efficacy of three chemotherapy regimens and partial excision of the affected vertebrae for spinal tuberculosis. Methods Between December 1998 and November 2003, 76 cases with spinal tuberculosis were treated with chemotherapy and surgical intervention. All pa-tients were divided into three groups randomly to receive one of three different courses of chemotherapy. Among these, 38 cases were selected to receive ultra-short-course chemotherapy regimen with 2SHRZ/ 2.5H2R2Z2, 23 of short-course with 3SHRZ/5H2R2Z2, and 15 of standard with 3SHRZ/9H2R2Z2. The duration of the preoperative chemotherapy of the three groups was about the same with an average of 21 days (15 to 40 days). All patients underwent anterior partial excision of the affected vertebrae, large iliac strut graft and anterior or posterior fixation. Results The mean follow-up time of the ultra-short-course, short-course and standard chemotherapy groups were 23, 28 and 45 months respectively. The observed indices included: 1) Clinical manifestation: disappearance of TB symptoms, the nerve function recovered, life and the work activ-ities. 2) Lab tests: both ESR and CRP data or either of them in normal or near normal status. 3) X-ray, CT and MRI examination: abscesses, new lesion, absorption of the bone grafts, translucent line between bone graft and vertebral body, and correction of kyphotic deformity. 4) Ultrasonic examination: no opaque dark area at the sites where there might be the paravertebral or gravity abscesses. 5) Drug complications: the hepatic and renal function of patients at follow up were normal or close to normal. The follow-up showed that all the three groups achieved excellent results. Conclusion Treatment of spinal tuberculosis with anterior partial excision of pathologic vertebrae, large iliac strut graft and anterior or posterior internal instrumental fixation in either ultra-short-course, short-course or standard chemotherapy all achieved excellent therapeutic effects. There was no difference among three different courses of chemotherapy.

ObjectiveTo explore the etiology of incisional hernia of abdomianal wall.Methods98 cases with incisional hernia were analyzed retrospectively in terms of incision type, technique of suture, suture materials,infection of incision, and the time of occurrence.ResultsLongitudinal incision, improper technique of suture,infection, increase of intraabdominal pressure, and diabetes mellitus were risk factors of incisional hernia. ConclusionsTransverse incision, prevention of infection of the incision, strict aseptic manipulation and hemostasis were effective in the prevention of incisional hernia. Most hernia developed within 6 months postoperatively.

0.05). After operation, in the pedicle screw fixation group the indexes were restored, but the restoration was lost gradually at later follow- up stage. Their superior- inferior endplate angle before operation averaged 19.5? , but 8.6? after operation, and 20.0? at the latest follow- up. Their wedged angle before operation averaged 20.7? , but 9.1? after operation, and 15.9? at the latest follow- up. In the non- pedicle- screw fixation group, the indexes decreased gradually at the later follow- up. Their average superior- inferior endplate angle before operation was 16.6? , 14.6? after operation, and 23.0? at the latest follow- up. Their average wedged angle before operation was 15.6? , 16.6? after operation, and 22? at the latest follow- ups. Conclusions The height of the fractured vertebra may be lost and the wedged vertebra may occur again after surgery but conditions may become stable in 2 years. The spinal kyphosis deformity, however, may go on. Its possible causes are structural changes of the vertebra after surgery, the early degenerative changes of the adjacent intervertebral discs, and osteoporosis.

Objective To investigate commence time of liver specific phase on Sonazoid contrastenhanced ultrasound.Methods Rats were administrated with saline (n =6),SonoVue (n =24) and Sonazoid(n =24),respectively.Liver perfusion was performed at 2 min,5 min,10 min and 20 min in situ.Changes of liver enhancement caused by perfusion were quantitatively analyzed.Results Degree of liver enhancement without administration of contrast agent increased after perfusion.In SonoVue group,liver enhancement decreased after perfusion at 2 min and 5 min and increased at 10 min and 20 min significantly.In Sonazoid group,liver enhancement decreased dramatically at 2 min after perfusion,but no changes were found at 5 min,10 min and 20 min after perfusion.Conclusions Liver specific phase on Sonazoid CEUS can begin as early as 5min after administration of contrast agent.

Objective:To investigate the difference between simple posterior interbody fixation and fusion and posterior interbody fixation combined with focus debridement and bone graft fusion for the treatment of mono- and bi-segmental lumbar brucella spondylitis.Methods:A total of 63 patients (42 males and 21 females), aged 50.9±8.18 years (range from 38 to 69 years) with mono- and bi-segmental lumbar brucella spondylitis who received surgical treatment from June 2014 to Feb 2018 were retrospectively analyzed. There were 44 cases of mono-segmental and 19 cases of bi-segmental. Thirty-one cases were treated with single posterior interbody fixation and fusion (PIFF group), and 32 caseswere treated with posterior interbody fixation combined with focus debridement and bone graft fusion (debridement group). The main observation indicators include operation time, intraoperative blood loss, postoperative hospital stay, postoperative medication time, Visual Analogue Scale(VAS), Oswestry Disability Index (ODI), erythrocyte sedimentation rate (ESR), C-reactive protein (CRP), Frankel score and clinical efficacy.Results:All of 63 patients were followed up for 27.16±6.07 months (range 15 to 38 months). The operation time of mono-segmental patients of PIFF group was 105.86±16.66 min,the intraoperative blood loss was 295.00±55.11 ml, and the postoperative hospitalization was 4.45±1.53 days, which was significantly shorter than debridement group ( P<0.001), while the postoperative medication time was without significant difference between the two groups ( P>0.05). The opration time of bi-segmental patients of PIFF group was 150.33±26.29 min, the intraoperative blood loss was 242.05±50.56 ml, and the postoperative hospitalization was 4.56±1.50 days, which was significantly shorter than debridement group ( P<0.001), while the postoperative medication time was also without significant difference between the two groups. At the last follow-up time, the VAS scores and ODI values of mono- and bi-segments in PIFF group and debridement group were lower than those preoperation, but there was no significant difference between the two groups ( P>0.05). There was no significant difference in CRP between mono-segments of PIFF group and debridement group at the preoperation, 3 months after operation and the last follow-up time ( P>0.05). The CRP in mono-segments of PIFF group and debridement group decreased at 3 months after the operation compared with that preoperation, and the difference was statistically significant ( P<0.001). There was no significant difference in CRP between bi-segments of PIFF group and debridement group at 3 months after operation and the last follow-up time ( P>0.05). There was no significant difference in ESR between mono- and bi-segments of PIFF group and debridement group at 3 months after operation and the last follow-up time ( P>0.05). There was significant difference in ESR between mono- and bi-segments of PIFF group and debridement group at the preoperation, 3 months after operation and the last follow-up time. There was no statistical difference in the proportion of excellent postoperative clinical efficacy between the two groups. Complications were observed in two patients in PIFF group (6.5%, 2/31) compared with 8 patients in debridement group (25%, 8/32, χ2=4.057, P=0.044). Conclusion:On the basis of standardized anti-brucella drug therapy, simple posterior interbody fixation and fusion for the treatment of brucella spondylitis has a satisfactory surgical effect, and has the advantages of less surgical trauma, shorter time, earlier postoperative movement time and fewer complications.