Analysis of the clinical effect of the concept of "shoulder preservation" in the treatment of proximal humeral fractures: a retrospective cohort study of 66 patients.

Background: The three- and four-part fractures of the proximal humerus are often combined with rotator cuff injury, and shoulder joint replacement is often selected clinically. The concept of "shoulder preservation" can greatly restore the function of the shoulder joint through internal fixation of the proximal humerus fracture and rotator cuff suture. This study investigated the clinical effect of the concept of "shoulder preservation" in the treatment of three- and four-part fractures of the proximal humerus.

PERK activator CCT020312 prevents inflammation-mediated osteoporosis in the ovariectomized rats.

Objective: To investigate the therapeutic effects of PERK activator CCT020312 (CCT) on inflammation-mediated osteoporosis (IMO) in ovariectomized rats.

Methods: Rats were divided into Sham, IMO, IMO + 1 mg/kg CCT and IMO + 2 mg/kg CCT groups. IMO models were constructed by bilateral ovariectomy (OVX) on 1st day followed by injection with magnesium silicate (Talc) on the 59th day.

Analysis of the Curative Effect of the Anterior Approach to the Lower Cervical Spine for Cervicothoracic Spinal Tuberculosis.

Background: The purpose of this study was to explore the clinical effect of the anterior approach to the lower cervical spine for cervicothoracic spinal tuberculosis (CTSTB).

Methods: A total of 8 patients (6 males and 2 females) with CTSTB diagnosed by imaging examination and γ-interferon test, underwent the first stage lesion removal, bone grafting and internal fixation through the anterior approach to the lower cervical spine, were studied. Then, the clinical efficacy was evaluated using statistical analysis based on the materials about the Cobb angle of kyphosis, visual analog scale (VAS), Frankel grade, erythrocyte sedimentation rate (ESR), and C-reactive protein (CRP).

Efficacy of One-Stage Posterior Debridement and Bone Grafting with Internal Fixation in the Treatment of Monosegmental Thoracolumbar Tuberculosis.

Background: We explored the clinical effect of one-stage posterior debridement and bone grafting with internal fixation for the treatment of monosegmental thoracolumbar tuberculosis (TB).

Methods: The data from 90 patients with thoracolumbar TB, who had undergone one-stage posterior debridement and bone grafting with internal fixation, were retrospectively reviewed. Data on the operative time, blood loss, length of hospital stay, erythrocyte sedimentation rate, C-reactive protein, improvement of neurological function, visual analog scale score, vertebral Cobb angle, bone healing, and complications were collected.

Short-range correlations and cooling of ultracold fermions in the honeycomb lattice.

We use determinantal quantum Monte Carlo simulations and numerical linked-cluster expansions to study thermodynamic properties and short-range spin correlations of fermions in the honeycomb lattice. We find that, at half filling and finite temperatures, nearest-neighbor spin correlations can be stronger in this lattice than in the square lattice, even in regimes where the ground state in the former is a semimetal or a spin liquid. The honeycomb lattice also exhibits a more pronounced anomalous region in the double occupancy that leads to stronger adiabatic cooling than in the square lattice.