Comparison of the operation safety and biomechanical stability of sacral alar-iliac vs. sacroiliac screws in the fixation of sacroiliac joint in simulated models of low bone density.

Background: Sacral alar-iliac screws (SAISs) have been used for sacroiliac joint and are superiority to traditional sacroiliac screws (SISs) in patients with low bone density. The aim of this study was to investigate the operation safety and biomechanical stability of the SIS, transsacral-transiliac screw (TSTIS), S1AIS and S2AIS in the treatment of sacroiliac joint in simulated models of low bone density.

Methods: CT data from 80 normal pelvic structures were employed to measure the anatomical parameters, including the safety zones of the S1AIS and S2AIS at the insertion point and the trajectory lengths of the SIS, TSTIS, S1AIS and S2AIS.

Radiological evaluation of effectiveness of PCCP fixation for femoral neck fracture: med-term effectiveness in a retrospective multicenter.

Background It has been reported in the literature that the complication rate of percutaneous compression plate (PCCP) is the lowest among the new internal fixators for the treatment of femoral neck fracture (FNS). However, no multicenter studies of PCCP for FNS have been reported. This study aimed to evaluate the med-term effectiveness of PCCP in a multicenter mainly through radiology.

Relevance of vitamin D on NAFLD and liver fibrosis detected by vibration controlled transient elastography in US adults: a cross-sectional analysis of NHANES 2017-2018.

Background: The connection between vitamin D to non-alcoholic fatty liver disease (NAFLD) is still unclear. Herein, the relationship of vitamin D with NAFLD and liver fibrosis (LF) detected by vibration controlled transient elastography was investigated in US adults.

Methods: The National Health and Nutrition Examination Survey of 2017-2018 was employed for our analysis.

A novel minimally invasive broken nail extractor for cannulated intramedullary nails: Trial and application in a few cases.

Successful and minimally invasive extraction of a broken distal end of an intramedullary nail is challenging. This study introduces a simple and reproducible technique for the extraction of broken cannulated intramedullary nails using a novel minimally invasive broken nail extractor. Five amputated adult lower-leg specimens were used to create models of the broken distal end of the cannulated intramedullary nails remaining in the medullary cavity of the distal tibia.

[Study of characteristics and treatment of "kissing fracture" of humeroradial joint].

Objective: To explore the clinical characteristics and treatment of "kissing fracture" of humeroradial joint.

Methods: A clinical data of 12 patients with "kissing fracture" of the humeroradial joint between January 2016 and June 2021 was retrospectively analyzed. There were 8 males and 4 females with an average age of 41.

Radio-anatomical study of anterior-posterior placement sacroiliac screw channel.

Purpose: The outlet of the classic sacroiliac screw (SIS) cannot be precisely controlled by aiming devices, which may lead to malpositioned implants and neurovascular and visceral injury. This study aimed to radio-anatomically measure the parameters of the channel for anterior-posterior placement SIS (AP-SIS), which can be placed percutaneously with an aiming device.

Methods: Pelvic CT scan data of 80 healthy adults (40 males and 40 females) with an average age of 45 years (range 20-70 years) were collected.

[Self-made dentation hook plate associated with hot-air balloon technique on treatment of Mutch or type isolated greater tuberosity fractures of humerus].

Objective: To observe effectivness and safeness of self-made dentation hook plate associated with hot-air balloon technique in treating Mutch Ⅰ or Ⅱ type isolated greater tuberosity fractures of humerus.

Methods: Between January 2016 and December 2018, 15 patients with Mutch Ⅰ or Ⅱ type greater tuberosity fractures were treated with self-made dentation hook plate associated with hot-air balloon technique. There were 9 males and 6 females with an average age of 45.

SNHG16 promotes osteosarcoma progression and enhances cisplatin resistance by sponging miR-16 to upregulate ATG4B expression.

Background: Human osteosarcoma is the most common primary cancer of the bone. Multiple mechanisms underlying cell growth, apoptosis, bone development, and drug resistance are important in the development of osteosarcoma therapy, which remains to be fully studied.

Methods: We collected thirty-paired tumor tissues and the adjacent normal ones from osteosarcoma patients.

[effectiveness of open reduction and internal fixation without opening joint capsule on tibial plateau fracture].

Objective: To introduce the surgery method to reset and fix tibial plateau fracture without opening joint capsule, and evaluate the safety and effectiveness of this method.

Methods: Between July 2011 and July 2013, 51 patients with tibial plateau fracture accorded with the inclusion criteria were included. All of 51 patients, 17 cases underwent open reduction and internal fixation without opening joint capsule in trial group, and 34 cases underwent traditional surgery method in control group.