Conventional education results in unsatisfactory morphological understanding of acetabular fractures due to lack three-dimensional (3D) details and tactile feedback real fractures. Virtual reality (VR) 3D printing (3DP) techniques are widely applied teaching. The purpose this study was identify the effect physical model (PM), VR 3DP models 141 students were invited participate study. Participants equally randomly assigned PM, learning groups. Three-level objective tests conducted evaluate...

Over the past 2 decades, fat grafting has been extensively applied in field of tissue regeneration.The aim this study was to investigate therapeutic potential microfat, nanofat, and extracellular matrix/stromal vascular fraction gel (SVF-gel) skin rejuvenation.Microfat harvested by a cannula with multiple 0.8-mm smooth side holes processed stirrer remove fibers. Nanofat SVF-gel were prepared according previously reported methods, their structure viability evaluated. Then, SVF cells from 3...

The purpose of this study was to use finite element analysis compare the biomechanical characteristics after lateral locking plate (LLP) or LLP with a medial anatomical (LLP-MLP) fixation proximal humeral fractures an unstable column.First, 3-dimensional, model developed. Next, and LLP-MLP implants were instrumented into fracture models. Compressive rotational loads then applied humerus determine characteristics. Both normal osteoporotic simulated using 2 internal methods each under 7...

Comminuted fractures of the proximal humerus are generally treated with locking plate system, and clinical results satisfactory. However, unstable support medial column in varus malunion screw perforation. We designed a novel anatomical (MLP) to directly column. Theoretically, combined application MLP (LPMP) would provide strong dual-column stability. hypothesized that LPMP could greater construct stability than alone (LP), fibular graft (LPSG), distal radius (LPDP). LP, LPMP, LPSG, LPDP...

Fat grafting is widely used for soft-tissue augmentation; however, the related clinical outcome remains variable and technique-dependent. The mechanisms underlying fat graft survival are not fully understood, particularly regarding contributions of different cell types, such as functional adipocytes. This study evaluated importance adipose tissue structure viability in and, to some extent, revealed effect adipocytes grafting.Human lipoaspirate was harvested using suction-assisted liposuction...

The intention of this study was to compare the biomechanical characteristics using 5 internal fixation methods used clinically stabilize a pubic symphysis diastasis (PSD, Tile type B1).A 3-dimensional finite element model PSD simulated implants, including single superior plate (Single-Plate), and anterior (Dual-Plate), cannulated screw (Single-Screw), crossed dual screws (Cross-Screw), parallel (Para-Screw). Three loads were distributed in all models, dual-leg standing, single-leg stance,...

Cervical spondylotic radiculopathy is a common spinal disease. The traditional surgical treatment consists of anterior cervical decompression and fusion (ACDF), but it presents problems such as trauma complications. Percutaneous posterior endoscopic discectomy (PPECD) new minimally invasive technology that has produced good clinical outcome, further biomechanical comparisons are needed to guide the work. goal this study was compare characteristics two methods by finite element analysis. On...

Objectives To compare the effectiveness of three-dimensional printed (3DP), virtual reality (VR) and conventional normal physical (NP) models in clinical education regarding morphology craniovertebral junction (CVJ) deformities. Design Prospective, multicentre, randomised controlled study. Setting Three teaching hospitals China. Participants One hundred fifty-three participants their first year a 3-year medical residency programme. Interventions All were to one three groups learn CVJ...

Hemophilic pseudotumors result from repeated episodes of bleeding into bone, subperiosteum, and soft tissue. Since clotting factors became available, uncontrolled perioperative is a less significant problem for surgeons in developed countries. However, they are more difficult to come by China. Additionally, patients often have undergo surgery giant masses suffer complications. We wanted present our experience the surgical management hemophilic over 40-year period.We retrospectively reviewed...

Partial traumatic hemipelvectomy (THP) is a catastrophic and life-threatening injury caused by high-energy impact. With advances in prehospital resuscitative techniques, more patients now survive this disastrous injury; however, the management of partial THP still lacks well-established therapeutic protocols. The purpose study was to present our experience managing level-I trauma center.We retrospectively reviewed medical records 21 consecutive with THP. key points successful treatment are...

Abstract Background and hypothesis The typical anterolateral approach is widely used to treat proximal humerus fractures with lateral locking fixation. However, fixation cannot completely avoid medial reduction loss varus deformity especially in the cases of an unstable column. We present a novel surgical technique together minimally invasive plate fix Materials methods performed anatomical study reported 8 columns treated through approach. All surgeries were by same single surgeon. Patients...

Delayed reconstruction of acetabular fractures remains a challenging task for orthopedists because malunion, fracture line absorption, and scar formation. Accurate osteotomy, interfragmentary release, proper adaptation plates are keys to successful surgery. Prevention superior gluteal artery (SGA) injury induced by cleaning the osteotylus reduction sciatic notch is also important. Therefore, sufficient preoperative planning essential. However, traditional methods do not readily provide...

Floating pubic symphysis (FPS) is a relatively rare injury caused by high-energy mechanisms. There are several fixation methods used to treat FPS, including external fixation, subcutaneous internal and percutaneous cannulated screw fixation. To choose the appropriate it necessary study biomechanical performance of these different methods. The goal this was compare characteristics six finite element analysis. A three-dimensional model FPS simulated. Six were in model, (Ext), rod (Sub-rod),...

Patients with metastatic epidural spinal cord compression (MESCC) often need surgical intervention due to pain, neurological deficits, and instability. Spinal disease is commonly treated via the minimally invasive mini-open approach. However, few studies have evaluated MESCC treatment The present study compared traditional open approach versus for thoracolumbar MESCC. A cohort of 209 consecutive patients who were diagnosed metastases underwent corpectomy polymethylmethacrylate reconstruction...

Background: The mandibular sagittal split ramus osteotomy (SSRO) is a routine operation performed to correct deformity including retrusion, protrusion, deficiency, and asymmetry. SSRO remains challenging procedure for junior surgeons due lack of adequate morphological knowledge necessary success in clinical practice. Virtual reality (VR) three-dimensional printed (3DP) models have been widely applied anatomy education. present randomized, controlled study was evaluate the effect traditional...

Thrombosis is closely related to the instability of intracranial aneurysm (IA), whose rupture associated with high morbidity and mortality. It difficult detect an IA-related thrombus because traditional magnetic resonance imaging (MRI) even contrast-enhanced MRI cannot clearly distinguish a from surrounding tissues. Herein, nanoplatform [(MFe2O4-ZnDPA nanoparticles (NPs)], consisting Zn0.4Co0.6Fe2O4@Zn0.4Mn0.6Fe2O4 NPs for Zn(II)-bis(dipicolylamine) (ZnDPA) targeting, constructed target...

Metastatic spinal cord compression (MSCC) seriously affects the survival rate.The therapeutic effects of two treatment strategies for MSCC: percutaneous vertebroplasty (PVP) combined with radiofrequency ablation (RFA) and PVP 125I particle implantation, were compared.Retrospective study.40 patients MSCC divided into groups: 19 cases in RFA group 21 group.All accessed to determine differences pain, which was evaluated using visual analog scale (VAS) at 1 week, month, 3 months after operation,...

The objective is to compare the effects of a self-designed and self-manufactured novel prophylactic ankle brace [Chinese parachute (CPAB)] two ordinary braces on joint during half-squat landing (HSPL) via biomechanical assessment.Twenty elite paratroopers were in four different conditions: no brace, elastic semi-rigid CPAB. Each participant was instructed jump off platform with three heights, 40, 80, 120 cm, land force plate posture. vertical ground reaction forces (vGRFs), angles, moments,...

Objective To evaluate the biomechanical characteristics of 4 fixation methods (single reconstruction plate, dual plates, single cannulated screw and screws) in treatment pubic symphysis disruption. Methods Miniature spiral CT scans were performed on complete pelvis 5 healthy volunteers. The primary two-dimensional scan data at DICOM format imported into software Mimics 15.0 for three-dimensional bilateral hips sacrums. finite element model skeletal was obtained by grid partitioning...

Objective To introduce the application of computer aided technology in treatment pelvic malunion and observe effect this technique on operation. Methods Data 9 consecutive patients with who were enrolled our hospital from January 2009 to December 2012 retrospectively observed. There 4 had undergone surgery technology, including 3 men 1 woman an average age 34 years (computer CAT) group. According Tile classification, cases all type C. case open fractures, 2 associated craniocerebral...