Why does such a cyst appear after unilateral biportal endoscopy surgery: A case report and literature review.

Background: Unilateral biportal endoscopy (UBE) has been widely and skillfully used in the treatment of lumbar disc herniation and spinal canal stenosis. UBE surgery also brings some complications, such as dural tear, epidural hematoma, residual nucleus pulposus, etc. And we found a rare case of arachnoid cyst after UBE.

[Effect of posture on total hip arthroplasty through direct anterior approach].

Objective: To investigate the effect of different postures on direct anterior approach(DAA) total hip arthroplasty.

Methods: Total of 94 patients who underwent DAA total hip arthroplasty from July 2016 to June 2020 were retrospectively analyzed. They were divided into two groups according to different positions during the operation, including 45 cases in lateral position and 49 cases in supine position (with the aid of stent).

Hu'po Anshen decoction promotes fracture healing in mice with traumatic brain injury through BMP2-COX2-ATF4 signaling pathway.

Hu'po Anshen decoction (HPASD), a traditional Chinese medicine used to treat concussion and fracture, could regulate the expression of bone morphogenetic protein 2 (BMP2). However, whether HPASD affects the fracture healing of traumatic brain injury (TBI) combined with a fracture through BMP2 and its downstream signals remains obscure. The chondrocyte-specific BMP2 conditional knockout mice and chondrocyte-specific cyclooxygenase-2 (COX2) overexpression mice were generated.

Hu'po Anshen Decoction Accelerated Fracture-Healing in a Rat Model of Traumatic Brain Injury Through Activation of PI3K/AKT Pathway.

Hu'po Anshen decoction (HPASD) is a traditional Chinese medicine formula comprising five herbal medicines for the treatment of concussion and fracture healing, but its pharmacological mechanism is still unclear. Ultra-performance liquid chromatography coupled with quadrupole time of flight mass spectrometry (UPLC/Q-TOF MS) was used to analyze the main active components of HPASD. Rats were randomly assigned to fracture group, fracture combined with traumatic brain injury (TBI) group (FBI) and FBI combined with HPASD treatment group (FBIH).

[Timing of artificial femoral head replacement in the treatment of femoral intertrochanteric fracture with intramedullary nail failure in elderly patients].

Objective: To analyze the timing of artificial femoral head replacement in elderly patients with femoral intertrochanteric fracture after intramedullary nail failure.

Methods: From July 2013 to September 2019, 17 elderly patients with femoral intertrochanteric fracture after intramedullary nail fixation failure were treated with artificial femoral head replacement. According to the interval from diagnosis of internal fixation failure to pedestrian femoral head replacement, the patients were divided into early operation and delayed operation groups.

[Efficacy and safety of tranexamic acid in total hip arthroplasty via direct anterior approach].

Objective: To evaluate the efficacy and safety of local application of tranexamic acid (TXA) in reducing perioperative blood loss in total hip arthroplasty via direct anterior approach (DAA).

Methods: From July 2013 to September 2018, 46 patients with avascular necrosis of the femoral head were divided into tranexamic acid group (=23) and saline group (=23). In the tranexamic acid group, there were 14 males and 9 females, aged 52 to 72(63.

[Percutaneous kyphoplasty for the treatment of osteoporotic vertebral compression fracture with degenerative scoliosis].

Objective: To evaluate the therapeutic effects of percutaneous kyphoplasty (PKP) for the treatment of osteoporotic vertebral compression fracture (OVCF) with degenerative scoliosis.

Methods: From March 2009 to March 2014,121 patients undergoing PKP for the treatment of osteoporotic vertebral compression fracture (OVCF) with degenerative scoliosis were retrospective analyzed. There were 41 males and 80 females,ranging in age from 56 to 92 years with an average of 73.

[Clinical effects of steel plate fixation for the failure of arthrodesis of ankle by screw fixation].

Objective: To observe the therapeutic effects of steel plate fixation after the failure of arthrodesis of ankle by screw fixation.

Methods: From August 2001 to October 2011, 15 patients were with steel plate fixation after failure of arthrodesis of ankle by screw fixation. Among patients, 9 cases were males and 6 cases were females,ranging age from 40 to 65 years old with the average of 56 years old.

[Experimental study on invigorating kidney and activating blood on preventing and curing SD rats with knee osteoarthritis].

Objective: To explore the effects and mechanism of invigorating kidney and activating blood, invigorating kidney and expelling wind on hemorheology, IL-1β and TNF-α of SD rats with knee osteoarthritis, then definite the evolution of muscle certified turning into heumatism and compare the effect of Chinese herbal.

Methods: One hundred and eighty SD rats with 3-month-old (each weight was 185 to 215 g) received intra-articular injection of papain solution for establishing knee OA models. All rats were randomly divided into activating blood group, preventing group, expelling wind group, invigorating kidney group, invigorating kidney and activating blood group and model group.

[Case-control study on ultra-early application with intermittent pneumatic compression to prevent postoperative deep venous thrombosis of intertrochanteric femoral fracture in elderly patients].

Objective: To evaluate the clinical effects of ultra-early application with intermittent pneumatic compression (IPC) in preventing postoperative lower limbs deep venous thrombosis (DVT) of intertrochanteric fractures in elder patients.

Methods: From May 2008 to May 2010, 80 patients with intertrochanteric fractures were randomly divided into ultra-early group and postoperative group. In ultra-early group, there were 21 males and 19 females, ranging in age from 67 to 86 years with an average of (76.

[The selection of responsible veterbal body in PKP (percutaneous kyphosis plasty) for aged osteoporotic spinal multiple fracture].

Objective: Through an analysis of the effect of PKP (percutaneous kyphosis plasty) for aged osteoporotic spinal multiple fracture to demonstrate the importance of the selection of responsible veterbal body.

Methods: Twenty-four consecutive procedures were performed in 19 aged patients with osteoporotic spinal compression fractures from May 2004 to October 2007. The 24 responsible veterbal bodies were confirmed by the manifestations of MRI, X-ray, physical examination before the procedures.

[Research on the role of metabolism of fatty substance and osteoclast activity during the development of steroid-induced necrosis of femoral head].

Objective: To explore the role of metabolism of fatty substance and osteoclast activity during the process of steroid-induced necrosis of femoral head through mice model inducing and model index measurement.

Methods: Forty SD male mice were divided into 2 groups randomly, the control group and the experiment group. After the gluteal injection of colibacillus endotoxin,the experiment group was given gluteal injection of prednisolone acetate 35.

[Three-tunnels core decompression with implantation of bone marrow stromal cells (bMSCs) and decalcified bone matrix (DBM) for the treatment of early femoral head necrosis].

Objective: To analyse retrospectively 3-tunnels core decompression with implantation of bone marrow stromal cells(bMSCs) and decalcified bone matrix (DBM) for treatment of femoral head necrosis in early stages, and to study its therapeutic results and indications.

Methods: According to the University of Pennsyvania system of classification and staging,to treat the patients with 3-tunnels core decompression with implantation of bone marrow stromal cells (bMSCs) and decalcified bone matrix (DBM) for treatment of early femoral head necrosis. Among the total 87 patients (103 hips), the male was 71 (86 hips) and the female 16 (17 hips) with the average age of 47 years old.

[Experimental study on treatment of femoral head necrosis with arterial perfusion of marrow stem cells].

Objective: To explore the effect of arterial perfusion of marrow multifunctional stem cells (MFSC) in treating femoral head necrosis and its mechanism.

Methods: The rabbit model of femoral head necrosis was established by large dose of methyl-prednisone through Shwartzman response. Bone marrow was extracted from femoral bone of model rabbit and isolated in vitro for culturing and proliferating MFSC.

Association of apolipoprotein E 4 polymorphism with cerebral infarction in Chinese Han population.

Aim: To study the association between APOE polymorphisms and cerebral infarction through a case-control study among the Chinese Han population.

Methods: First-ever cerebral infarction patients (n=226) whose ages ranged from 40 to 60 years old were recruited from Department of Neurology, Zhongshan Hospital, Shanghai, and Zhejiang Chinese Traditional Medicine Hospital, Zhejiang, China. Unrelated healthy controls (n=201) were selected from the general population in the same area with similar age and sex distribution.