The measurements among anatomic measurement, 2D and 3D computed tomography are consistent. The screw path from the posterior superior iliac spine toward anterior inferior iliac spine provided the longest anchor site. At the same time, the line between the posterior inferior iliac spine and anterior inferior iliac spine is not available for transiliac screw insertion of eastern population. The posterior of the safe section also can be regarded as another ilium anchorage area for transiliac screws.

Both treatments are effective for benign lesions in the proximal femur, but the fixation group facilitated the functional recovery of patients and reduced postoperative complications.

Indirubin is widely used as the active component of “Dangui Luhui Wan” in ancient China. However, its effects against the osteosarcoma (OS), the most common primary malignancy, are still unknown. In our present study, we investigated the effects of the Indirubin‐3′‐monoxime (I3M), a derivative of indirubin with better water solubility, against the OS cells. We found I3M inhibited OS cell proliferation in a dose‐dependent manner. Flow cytometry assays showed that I3M could not only induce OS cell apoptosis in a time‐ and dose‐dependent manner but also regulate the cell cycle distribution. Additionally, we demonstrated that several Bcl‐2 family members, cyclin‐dependent kinases (CDKs) and cyclins contributed to this process. Furthermore, out data verified that I3M suppressed OS cell migration and invasion by decreasing MMP‐2 and MMP‐9 levels. Moreover, survivin and focal adhesion kinase (FAK) might play important roles in the anti‐OS effects of I3M. The administration of I3M also inhibited the OS cell growth in mice. Taken together, our results indicated the inhibitory effects of I3M against human OS and thus might be an efficient candidate for OS chemotherapy.

The goal of this study was to confirm the decrease in radiation time required for a new technique to place dynamic hip screws (DHS) in intertrochanteric fractures. Seventy-six patients were treated with DHS by either the new technique (NT) or the conventional technique (CT). The width of femoral shaft, the length of the hip screw to be implanted into the injured side, and the distance between the tip of the greater trochanter and the entry point of the guide wire were measured at the uninjured side on the anteroposterior pelvic radiograph preoperatively, and the actual width of the injured femoral shaft was measured intra-operatively. Finally, the entry point and the length of hip screw were obtained through an equation. Mean radiation time of the NT patients (24.57±7.80 s) was significantly shorter than the CT patients (54.2±18.26 s) (P <0.001). The new technique decreased radiation time dramatically in DHS fixation.Résumé Le but de cette étude est d'évaluer la diminution du temps d'exposition aux rayons X par une nouvelle technique de vissage dynamique de la hanche DHS (NT) comparée à la technique conventionnelle. Matériel et méthode: 76 patients ont été traités par DHS avec cette nouvelle technique (NT) ou la technique conventionnelle (CT). La largeur et la longueur de la vis fémorale implantée et la distance entre le sommet du grand trochanter et le point d'entrée du guide ont été mesurés du côté fracturé par une radiographie de face pré-opératoire et per-opératoire. Finalement, le point d'entrée et la longueur de la vis fémorale sont obtenus par équation. Résultats : l'exposition moyenne aux rayons X de la nouvelle technique (24.57± 7.80s) a été significativement moins importante que dans la technique conventionnelle (54.2±18.26 s) (P<0.001). En conclusion, cette nouvelle technique permet de diminuer le temps d'irradiation de façon importante, lors d'une fixation de fracture fémorale par DHS.

Although the incidence of osteosarcoma (OS) is relatively low compared with other cancer types, the overall survival of metastatic OS was less than 30%. This study aimed to reveal the role of pyroptosis in osteosarcoma and develop a prognostic model related to pyroptosis. Weighted correlation network analysis (WGCNA) was applied to identify key gene modules related to pyroptosis. Univariate Cox regression analysis was used to screen prognostic genes related to pyroptosis. The least absolute shrinkage and selection operator (LASSO) and stepwise Akaike information criterion (stepAIC) were employed to optimize and construct a prognostic model. Five prognostic genes (COL13A1, TNFRSF1A, LILRA6, CTNNBIP1, and CD180) related to pyroptosis were identified. According to the 5-gene signature, OS samples were divided into high- and low-PPRS groups with differential prognosis. Immune-related pathways were more activated in the low-PPRS group. The 5-gene signature was effective and robust to predict OS prognosis. These five prognostic genes were involved in OS development and may serve as new targets for developing therapeutic drugs.