[Autologous bone grafting versus bone morphogenetic protein treatment for nonunion of long bone fractures in adults：a Meta analysis].

Objective: To systematically evaluate the clinical effects of autologous bone grafting versus bone morphogenetic protein treatment for nonunion of long bone fractures in adults and provide reference for this fracture.

Methods: According to the methods of systematic review of Cochrane, the randomized controlled trials which compared autologous bone grafting with bone morphogenetic protein treatment for nonunion of long bone fractures in adults were searched in PuMed, Embase, Cochrane library, CNKI , Wangfang data and CBM from the databases were established to March 2019. Information was screened and extracted according to the inclusion and exclusion criteria by two researchers respectively, and the qualities of the included studies were assessed by the modified Jadad quality scale.

Notch1-ADAM8 positive feed-back loop regulates the degradation of chondrogenic extracellular matrix and osteoarthritis progression.

Background: Osteoarthritis (OA) is one of the most prevalent joint disease, and there are still no effective therapeutic agents or clinical methods for the cure of this disease to date. The degradation of cartilage extracellular matrix (ECM) is a major cause of OA.

Method: IL-1β was used to induce chondrogenic degradation.

Limited Unilateral Decompression and Pedicle Screw Fixation with Fusion for Lumbar Spinal Stenosis with Unilateral Radiculopathy: A Retrospective Analysis of 25 Cases.

Objective: Lumbar spinal stenosis is conventionally treated with surgical decompression. However, bilateral decompression and laminectomy is more invasive and may not be necessary for lumbar stenosis patients with unilateral radiculopathy. We aimed to report the outcomes of unilateral laminectomy and bilateral pedicle screw fixation with fusion for patients with lumbar spinal stenosis and unilateral radiculopathy.