Clinical data of 67 patients with recurrent inguinal hernia and chronic pain after anterior repair of transversalis fascia who underwent Kugel procedure through the primary incision in Wenling First People′s Hospital between June 2015 and January 2019 were retrospectively reviewed. During the operation the surrounding scar tissue and previous mesh or plug were removed, the transversalis fascia was separated and the patch was placed to overlay myopectineal orifice. The mean operative time was 57 min (51-85 min).The peritoneum rupture occurred during the operation in 6 cases (8.9%), and seroma was developed in 5 patients(7.5%). After a mean 18 months of follow-up, no recurrence occurred in all patients. Three months after operation, the mild, moderate or severe pain in all 67 patients were all improved remarkably with a total pain relief rate of 92.5%. The results show that Kugel procedure through the primary incision is safe and effective in treatment of recurrent inguinal hernia with chronic pain after anterior repair of transversalis fascia.

Lung cancer is a most common malignant tumor of the lung and is the cancer with the highest morbidity and mortality worldwide. For patients with advanced non-small cell lung cancer who have undergone epidermal growth factor receptor (EGFR) gene mutations, targeted drugs can be used for targeted therapy. There are many methods for detecting EGFR gene mutations, but each method has its own advantages and disadvantages. This study aims to predict the risk of EGFR gene mutation by exploring the association between the histological features of the whole slides pathology of non-small cell lung cancer hematoxylin-eosin (HE) staining and the patient's EGFR mutant gene. The experimental results show that the area under the curve (AUC) of the EGFR gene mutation risk prediction model proposed in this paper reached 72.4% on the test set, and the accuracy rate was 70.8%, which reveals the close relationship between histomorphological features and EGFR gene mutations in the whole slides pathological images of non-small cell lung cancer. In this paper, the molecular phenotypes were analyzed from the scale of the whole slides pathological images, and the combination of pathology and molecular omics was used to establish the EGFR gene mutation risk prediction model, revealing the correlation between the whole slides pathological images and EGFR gene mutation risk. It could provide a promising research direction for this field.

Objective To compare the clinical effect of digital orthopedic three-dimensional visualization technology combined with image-based computer navigation and simple image-based computer navigation for percutaneous screw fixation of acetabulum anterior column fractures.Methods A retrospectivecase-control analysis was made on 19 cases undergone percutaneous screw fixation of acetabular anterior column fractures under image-based computer navigation from January 2015 to 2016 March.There were 12 males and 7 females,aged from 21 to 66 years (mean,39.3 years).AO fracture classification was A3 type in 17 cases and B1 type in 2.Based on the application of three-dimensional digital programming,the cases were assigned to two groups:group A (n =9),virtual three-dimensional model was reconstructed and the virtual screw were inserted to uninjured side by software Mimics and group B (n =10),patients were only prepared for routine preoperative preparation.Time of anterior column screw insertion,intraoperative bleeding,intraoperative fluoroscopy frequency,fracture reduction and Majeed score were compared between the two groups.Results All cases were followed up for mean 8.4 months (range,3-12 months).There were no significant differences between groups A and group B in iutraoperative bleeding [(14.1 ± 3.0) ml,(15.1 ± 2.2) ml],good to excellent rate of reduction (89％,80％),good to excellent rate of Majeed score (89％,80％) (P ＞ 0.05).Time of anterior column screw insertion [(22.4-± 3.4) min] and intraoperative fluoroscopy frequency [(24.9 ± 3.8)times] in group A were significantly less than those[(29.4 ± 4.5)min,(30.5 ± 5.8)times] in group B (P ＜ 0.05).Conclusion Digital orthopedic three-dimensional visualization technology is associated with shortened time of anterior column screw insertion and reduced intraoperative fluoroscopy frequency,indicating an effective adjuvant technique for percutaneous screw fixation of acetabulum anterior column under navigation.

Objective To investigate the clinical application of pedicle screw placement technique for pelvic external fixation.Methods A retrospective review was made on 63 patients (37 males and 26 females;23-67 years of age) managed with anterior or combined anterior and posterior external fixation of pelvic fracture between February 2011 and May 2014.According the ways of screw insertion,the study was divided into two groups:observation group (screw was inserted using the pedicle screw placement technique,n =36) and control group (screw was inserted directly,n =27).Tile fracture classification was 11 patients with type B1,7 type B2,7 type B3,5 type C1,3 type C2 and 3 type C3 in observation group,and 9 patients with type B1,7 type B2,4 type B3,4 type C1,2 type C2 and 1 type C3 in control group.Operation time,rate of the penetration,X-ray fluoroscopy times,screw loosening rate,and postoperative complication rate were documented.Radiologic evaluation of the pelvis was detected with the Matta' s criteria.At the final follow-up,functional evaluation of the pelvis was evaluated with the score proposed by Cole et al.Results Period of follow-up was (14.7 ± 3.2)months in observation group and was (13.8 ± 3.1) months in control group.A total of 190 screws were placed in observation group and 138 screws in control group.Better results were found in observation group than in control group with respect to operation time [(18.8 ± 4.1) min vs.(22.6 ± 5.4) min],rate of the penetration (1.6％ vs.8.7％),X-ray fluoroscopy times (1.6 ± 0.8 vs.2.2 ± 0.9),and screw loosening rate (1.6％ vs.6.5％).There were no significant difference between observation and control groups in percentage of good to excellent reduction(89％ vs.85％) and function score [(35.6 ±3.0) points vs.(34.8 ± 3.9) points] (P ＞ 0.05).After operation,3 patients with lateral femoral cutaneous nerve paralysis and none with wouud infection were found in observation group;3 patients with lateral femoral cutaneous nerve paralysis and one patient with wound infection were found in control group.Conclusion Either the pedicle screw placement technique or conventional technique achieves satisfactory clinical effect,but the former owns better results in operation time,screw insertion accuracy,fluoroscopy frequency and rate of screw loosening,suggesting a fast,safe,and effective screw placement method in pelvic external fixation that should be widely applied.