Application of 3D-printed Customized Guides in Subtalar Joint Arthrodesis.

Objective: To explore the feasibility of 3D printed customized guides assisting the precise drilling of Kirschner wires in subtalar joint arthrodesis.

Methods: We retrospectively reviewed the data of 29 patients (30 subtalar joints) who underwent subtalar joint arthrodesis between 1 July 2013 and 31 December 2017. The customized guides were designed on a full-scale 3D polylactic acid model made from computed tomography (CT) data of patients by Model Intestinal Microflora in Computer Simulation (MIMICS) software, which were manufactured by 3D printing technology.

Low-Dose Epinephrine Plus Tranexamic Acid Reduces Early Postoperative Blood Loss and Inflammatory Response: A Randomized Controlled Trial.

Background: The reductions of perioperative blood loss and inflammatory response are important in total knee arthroplasty. Tranexamic acid reduced blood loss and the inflammatory response in several studies. However, the effect of epinephrine administration plus tranexamic acid has not been intensively investigated, to our knowledge.

Total hip arthroplasty for patients with Crowe type IV developmental dysplasia of the hip: Ten years results.

Background And Objectives: The aim of this study was to determine the rate of union, functional results and complications in patients with Crowe IV developmental dysplasia of the hip (DDH) who underwent cementless total hip arthroplasty (THA) with S-ROM prostheses and subtrochanteric transverse shortening osteotomy.

Methods: Forty-five patients (52 hips) operated between January 2005 and May 2008, with a mean age of 40.6 years at surgery were followed.

Investigation of association between hip morphology and prevalence of osteoarthritis.

The cause of hip osteoarthritis (OA) remains unclear, morphologic abnormality of hip was thought to be a contributing factor to hip OA. The hypothesis was that there were subtle anatomical morphology differences of the hip between normal and OA subjects; the objective of this study was to explore these anatomical differences which are predisposing to hip OA based on CT 3D reconstruction. Ninety-three normal subjects (186 hips) and 66 mild-to-moderate hip OA subjects (132 hips) were recruited in this study.

Fabrication and Evaluation of Porous Keratin/chitosan (KCS) Scaffolds for Effectively Accelerating Wound Healing.

Objective: To develop a dressing with desired antibacterial activity, good water maintaining ability and mechanical properties for wound healing and skin regeneration.

Methods: The chitosan with different concentrations were added in keratin solution to form porous keratin/chitosan (KCS) scaffolds. The morphological characteristics, chemical composition, wettability, porosity, swelling ratio and degradation of the scaffolds were evaluated.

Anterior cruciate ligament reconstruction with bone-patellar tendon-bone graft: comparison of autograft, fresh-frozen allograft, and γ-irradiated allograft.

Purpose: To compare clinical follow-up results of anterior cruciate ligament (ACL) reconstruction using (1) autologous, (2) fresh-frozen allogeneic, and (3) γ-irradiated allogeneic bone-patellar tendon-bone (BPTB).

Methods: From February 2002 to January 2006, 187 patients received BPTB ACL reconstruction at our center. One hundred forty-two consecutive patients who had received single-bundle BPTB ACL reconstruction were included in this study.

Long-term survival analysis of posterior cruciate-retaining total knee arthroplasty.

Purpose: Clinical factors related to cruciate-retaining knee arthroplasty failure in a long-term follow-up are yet unclear. The study was designed to evaluate the long-term survival rate of cruciate-retaining arthroplasty and clinical factors that may contribute to its failure.

Methods: A total of 162 patients (188 knees) who received cruciate-retaining press-fit condylar arthroplasty from June 1993 to May 1994 were followed up.