Objective calculation of glenoid bone loss in anterior shoulder instability based on the contour of the posteroinferior quadrant using the best-fit circle method: an accurate and reproducible evaluation.

Background: Glenoid bone loss is proposed to be an important risk factor for recurrent anterior shoulder instability. The purpose of the present study was to develop an accurate and reproducible method for quantifying a bone loss in patients with anterior shoulder instability.

Methods: A total of 66 sets of computed tomography images of the glenoid were acquired and en face view was established.

Ultrafast underwater self-healing piezo-ionic elastomer via dynamic hydrophobic-hydrolytic domains.

The development of advanced materials capable of autonomous self-healing and mechanical stimulus sensing in aquatic environments holds great promise for applications in underwater soft electronics, underwater robotics, and water-resistant human-machine interfaces. However, achieving superior autonomous self-healing properties and effective sensing simultaneously in an aquatic environment is rarely feasible. Here, we present an ultrafast underwater molecularly engineered self-healing piezo-ionic elastomer inspired by the cephalopod's suckers, which possess self-healing properties and mechanosensitive ion channels.

Does age affect patient outcomes after humeral head replacement in the treatment of acute proximal humeral fractures? A comparative cohort study with a minimum 10 years long-term follow-up.

Background: Humeral head replacement (HHR) is now rarely recommended for complex proximal humeral fractures (PHFs) in older patients. However, in relatively young and active patients with unreconstructable complex PHFs, controversy still exists regarding the treatment options of reverse shoulder arthroplasty and HHR. The goal of this study was to compare the survival, functional, and radiographic outcomes of HHR in patients aged <70 years and those aged ≥70 years after a minimum 10 years follow-up.

Toward Highly Matching the Dura Mater: A Polyurethane Integrating Biocompatible, Leak-Proof, and Self-Healing Properties.

The dura mater is the final barrier against cerebrospinal fluid leakage and plays a crucial role in protecting and supporting the brain and spinal cord. Head trauma, tumor resection and other traumas damage it, requiring artificial dura mater for repair.  However, surgical tears are often unavoidable.

Long-term outcomes of shoulder hemiarthroplasty for acute proximal humeral fractures.

Purpose: Shoulder hemiarthroplasty (HA) is now rarely indicated for complex proximal humeral fractures due to its unpredictable characteristic of the greater tuberosity (GT) healing. Despite the increasing popularity of reverse shoulder arthroplasty (RSA) in fracture treatment, there are still concerns about failure revision and its application in young populations. The complete negation of HA for fracture treatment is still under debate.

The Correlation between Variation of Labral Attachment and Lesions of the Long Head of the Biceps Tendon in Patients with Rotator Cuff Tears.

Objective: There was no universally accepted classification system that describes LHBT lesions as a type of its' pathology in patients with shoulder pain. This study aimed to determine the correlation of anatomic variants of glenoid labrum attachment of long head of biceps tendon (LHBT) and to assess their association, if any, with its lesions in rotator cuff tear (RCT) patients.

Methods: All RCT patients from January 2016 to December 2019 were assessed arthroscopically to classify the LHBT labrum attachment according to its' anatomical location.

Acid-triggered, degradable and high strength-toughness copolyesters: Comprehensive experimental and theoretical study.

The popularization and widespread use of degradable polymers is hindered by their poor mechanical properties. It is of great importance to find a balance between degradation and mechanical properties. Herein, poly(butylene terephthalate) (PBT) modified by SPG diol from 10% to 40 mol% were synthesized through a two-step polycondensation reaction.

Clinical Outcome of a Modified Coracoid Tunnel-Free Coracoclavicular Sling Technique With Remnant Preservation for the Treatment of High-Grade Acromioclavicular Joint Separation: A Report of 48 Cases With 2 to 5 Years of Follow-up.

Background: High-grade acromioclavicular (AC) joint separation injuries (Rockwood type IV or V) are surgically indicated because of complete disruption of the AC and coracoclavicular (CC) ligaments, leading to instability and pain. In surgical techniques that require a suspensory system, coracoid tunnel-related complications are not uncommon.

Purpose: To report subjective and objective clinical outcomes and complication rates of a modified coracoid tunnel-free CC sling technique combined with CC ligament remnant preservation for a minimum 2-year follow-up.

Toughening Polylactic Acid by a Biobased Poly(Butylene 2,5-Furandicarboxylate)--Poly(Ethylene Glycol) Copolymer: Balanced Mechanical Properties and Potential Biodegradability.

Polylactic acid (PLA) is a biodegradable thermoplastic polyester produced from natural resources. Because of its brittleness, many tougheners have been developed. However, traditional toughening methods cause either the loss of modulus and strength or the lack of degradability.

Establishment of a True En Face View in the Evaluation of Glenoid Morphology for Treatment of Traumatic Anterior Shoulder Instability.

Purpose: To develop an accurate and reproducible method for establishment of a true en face view of the glenoid with a traumatic bone defect.

Methods: A total of 50 sets of computed tomography images of the glenoid were used for 3-dimensional reconstruction. Both a quantitative definition and a practical method were designed for creation of the true en face view of the glenoid with a traumatic bone defect.

Arthroscopic Latarjet Procedure With Anterior Capsular Reconstruction: Clinical Outcome and Radiologic Evaluation With a Minimum 2-Year Follow-Up.

Purpose: To investigate the clinical and radiographic outcomes of the modified arthroscopic Latarjet procedure at a minimum of 2 years after surgery.

Methods: Patients who had traumatic unidirectional anterior shoulder instability and treated with a modified arthroscopic Latarjet procedure were included. During surgery, the anterior capsule was preserved and repaired back to the glenoid after the coracoid transfer.

[Perspective randomized control study on different NSAIDs drugs after rotator cuff repair].

Objective: To compare the effectiveness and safety of ibuprofen, celecoxib and flurbiprofen axetil after arthroscopic rotator cuff repair.

Methods: From Dec., 2012 to Dec.

Do Different Cyclooxygenase Inhibitors Impair Rotator Cuff Healing in a Rabbit Model?

Background: The effect of selective and non-selective cyclooxygenase (COX) inhibitors on tendon healing was variable. The purpose of the study was to evaluate the influence of non-selective COX inhibitor, ibuprofen and flurbiprofen axetil and selective COX-2 inhibitor, celecoxib on the tendon healing process in a rabbit model.

Methods: Ninety-six New Zealand rabbits were used as rotator cuff repair models.

Coracoid bone graft resorption after Latarjet procedure is underestimated: a new classification system and a clinical review with computed tomography evaluation.

Background: This study proposes a simple and reliable classification system to evaluate the severity of the bone resorption of the transferred coracoid bone block after the Latarjet procedure. The incidence and severity of the graft resorption was also investigated.

Methods: Between January 2009 and January 2012, 63 patients underwent an open Latarjet procedure and were included.

Locked Posterior Shoulder Dislocation Associated With Isolated Fractures of the Lesser Tuberosity: A Clinical Study of 22 Cases With a Minimum of 2-Year Follow-up.

Objectives: To evaluate the clinical and radiographic outcomes of 2-part lesser tuberosity fracture with a locked posterior dislocation.

Design: Retrospective case series study.

Setting: Beijing Jishuitan Hospital ("first-level teaching hospital").

Hemiarthroplasty for the treatment of complex proximal humeral fractures: does a trabecular metal prosthesis make a difference? A prospective, comparative study with a minimum 3-year follow-up.

Background: Proper positioning and healing of the greater tuberosity are key for functional shoulder recovery after hemiarthroplasty for complex proximal humeral fractures. The purpose of this study was to compare the outcomes after hemiarthroplasty between a trabecular metal prosthesis and a conventional prosthesis in the treatment of complex proximal humeral fractures.

Methods: A prospective, comparative study was performed.

[Clinical outcomes of two-part lesser tuberosity fracture with locked posterior shoulder dislocation treated with modified McLaughlin procedure].

Objective: To evaluate and compare the clinical and radiographic outcomes of both acute and chronic two-part lesser tuberosity fracture with locked posterior dislocation and analyze the risk factors for the clinical outcomes.

Methods: Between April 2003 and June 2010, 29 patients received surgical treatment for two-part lesser tuberosity fractures with a locked posterior shoulder dislocation. Eighteen of these patients received modified McLaughlin procedures and were available for both clinical and radiographic evaluation for more than 2 years.

Do reduction and healing of the bony fragment really matter in arthroscopic bony Bankart reconstruction?: a prospective study with clinical and computed tomography evaluations.

Background: Bony Bankart lesions can be treated with arthroscopic repair. However, few studies have evaluated the importance of bony fragment reduction and healing to stability of the glenohumeral joint after arthroscopic bony Bankart repair.

Purpose: To evaluate functional results after surgery and determine the correlation between reduction and healing of the fracture and postoperative stability of the glenohumeral joint.

Trabecular metal™ shoulder prosthesis in the treatment of complex proximal humeral fractures.

Purpose: Shoulder arthroplasty is one of the options for the treatment of complex proximal humeral fractures. The purpose of this study was to assess the clinical and radiographic results of the trabecular metal shoulder prosthesis in the treatment of complex proximal humeral fractures.

Methods: Fifty-one consecutive patients with complex proximal humeral fractures who underwent primary shoulder arthroplasties with the trabecular metal™ prosthesis were enrolled in this study.

[Primary shoulder arthroplasty for treatment of complex proximal humeral fractures with the trabecular metal prosthesis].

Objective: To evaluate the clinical results of primary shoulder arthroplasty for the treatment of complex proximal humeral fractures with the trabecular metal prosthesis.

Methods: In the study, 57 consecutive patients with complex proximal humeral fractures underwent primary shoulder arthroplasty with the trabecular metal prosthesis, of whom 45 patients were available for the final follow-up (78.9%), and were retrospectively assessed.