Chao Zhang

ORCID: 0000-0002-2573-062X
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About
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Research Areas
  • Foot and Ankle Surgery
  • Lower Extremity Biomechanics and Pathologies
  • Tendon Structure and Treatment
  • Diabetic Foot Ulcer Assessment and Management
  • Orthopedic Surgery and Rehabilitation
  • Sports injuries and prevention
  • Total Knee Arthroplasty Outcomes
  • Peripheral Nerve Disorders
  • Lymphatic System and Diseases
  • Bone and Joint Diseases
  • Bone fractures and treatments
  • Pressure Ulcer Prevention and Management
  • Neuroscience and Neural Engineering
  • Musculoskeletal Disorders and Rehabilitation
  • Epigenetics and DNA Methylation
  • Musculoskeletal synovial abnormalities and treatments
  • Muscle and Compartmental Disorders
  • Chromatin Remodeling and Cancer
  • Diagnosis and Treatment of Venous Diseases
  • Intracerebral and Subarachnoid Hemorrhage Research
  • Intracranial Aneurysms: Treatment and Complications
  • Muscle activation and electromyography studies
  • Glioma Diagnosis and Treatment
  • Planarian Biology and Electrostimulation
  • Winter Sports Injuries and Performance

Huashan Hospital
2016-2025

Fudan University
2016-2025

Shanghai Clinical Research Center
2024

National Natural Science Foundation of China
2023

University of Mississippi Medical Center
2017

Wenzhou Medical University
2017

First Affiliated Hospital of Wenzhou Medical University
2017

Tianjin Medical University General Hospital
2014

Nanyang Technological University
2014

University of Michigan
2013

Hallux valgus (HV) deformity is closely correlated to the hypermobility of first metatarsal-cuneiform joint, but adequate understanding three-dimentional (3D) mobility this joint in normal or HV feet lacking. This study was conducted investigate multiple planes during body weight-bearing conditions for both and patients. A total 10 female volunteers (20 feet) patients participated study. Using a custom-made foot-loading device, computerized tomography (CT) scans each pair were taken under...

10.1186/s13018-015-0289-2 article EN cc-by Journal of Orthopaedic Surgery and Research 2015-09-15

In this study, a biological microactuator was demonstrated by closed-loop motion control of the front leg an insect (Mecynorrhina torquata, beetle) via electrical stimulation muscles. The three antagonistic pairs muscle groups in enabled actuator to have degrees freedom: protraction/retraction, levation/depression, and extension/flexion. We observed that threshold amplitude (voltage) required elicit motions approximately 1.0 V; thus, we fixed at 1.5 V ensure response. were finely graded...

10.1371/journal.pone.0105389 article EN cc-by PLoS ONE 2014-08-20

Objective To investigate the effect of internal fixation on postoperative ankle function in patients with supination‐external rotation type IV fractures, including medial malleolus fractures and deltoid ligament injury. Methods Between January 2012 June 2014, structure injuries were enrolled this study assigned to fracture group or group. The surgical procedures for two groups documented. follow‐up endpoint was time point when steel plate screw removed from lateral ankle. Olerud–Molander...

10.1111/os.12318 article EN Orthopaedic Surgery 2017-02-01

Spontaneous osteonecrosis of the navicular bone in adults is a rare entity, known as Müller-Weiss syndrome. We report here on our experience with six patients syndrome accompanied by flatfoot deformity, but literature search found no reports this phenomenon. Because natural history and treatment are controversial, an understanding how to manage deformity may be helpful for surgeons when choosing most appropriate operative procedure.Six (five women, one man; average age, 54 years) caused were...

10.1186/1752-1947-6-228 article EN cc-by Journal of Medical Case Reports 2012-08-01

Objectives To (i) report the mid‐term outcomes of subtalar arthroereisis using Talar‐Fit implant for treatment flexible flatfoot patients; (ii) compare clinical and radiographic between with without adjunctive operative procedures to investigate effects adjuncts on outcomes; (iii) analyze risk factors associated sinus tarsi pain, which is most common postoperative complication arthroereisis. Methods Thirty‐one children adolescents (46 feet) treated from June 2014 May 2019 were...

10.1111/os.12864 article EN Orthopaedic Surgery 2020-12-17

Patients with mechanic ankle instability experience increased tibiotalar and subtalar joint laxity. However, in vivo kinematics functional (FAI) patients lateral sprain (LAS) copers, especially during dynamic activities, are poorly understood. Ten FAI patients, 10 LAS healthy controls were included this study. A dual fluoroscopic imaging system was used to analyze the stair descent. Five key poses of descent analyzed. Kinematic data from six degrees freedom calculated utilizing a solid...

10.1002/jor.24303 article EN Journal of Orthopaedic Research® 2019-04-12

The motion of the distal syndesmosis correlates highly with instability, while an accurate kinematic description tibiofibular joint during normal gait has not previously been presented. Sixteen healthy syndesmoses sixteen living subjects (8 male and 8 female) were studied stance phase gait. Data CT scanning collected first used to create 3D models tibia fibula. lateral X-ray images captured by fluoroscopy when subject was walking. Seven key-pose selected for subsequent 2D bone model...

10.1186/s13018-015-0306-5 article EN cc-by Journal of Orthopaedic Surgery and Research 2015-10-24

A proper combination of implant materials for Total Ankle Replacement (TAR) may reduce stress at the bearing component and resected surfaces tibia talus, thus avoiding failure or aseptic loosening bone-implant interface.A comprehensive finite element foot model implanted with INBONE II system was created loading second peak ground reaction force simulated. Twelve material combinations including four tibial talar components (Ceramic, CoCrMo, Ti6Al4V, CFR-PEEK) three (CFR-PEEK, PEEK, UHMWPE)...

10.1186/s12891-021-04982-3 article EN cc-by BMC Musculoskeletal Disorders 2022-01-19

Background: Fixation of posterior malleolar fractures with plates or screws is under debate. A fatigue loading system and a spatial motion capture were used in this study to evaluate fracture model. Methods: Thirty-six below-knee specimens single posterolateral fragment (Haraguchi I) type models randomly divided into 2 groups. Two parallel-placed 3.5-mm partially threaded titanium alloy Group fix the fractures, while anatomical B. According ratio (S) area between total articular surface,...

10.1177/1071100717719531 article EN Foot & Ankle International 2017-07-31

Background. The plantar soft tissue plays a critical role in absorbing shocks and attenuating excessive stresses during walking. Plantar property pressure are information for footwear design clinical assessment. aim of this study was to investigate the relationship between hardness Methods. 59 healthy volunteers (27 males 32 females, aged 20 82) participated study. surface divided into five regions: lateral rearfoot, medial midfoot, forefoot, tested using Shore durometer each region. Average...

10.1155/2021/5566036 article EN cc-by Applied Bionics and Biomechanics 2021-06-12

Postoperative transfer metatarsalgia is a common complication after hallux valgus surgeries. Shortening of the first metatarsal traditionally thought to be primary cause it. However, we speculate abnormal loading pattern during gait real reason. This study determine specific differences in patterns between reconstructive (HV) feet with and without postoperative metatarsalgia, so as find risky characteristics this complication.Thirty were recruited pain group, while another 30 controls. All...

10.1186/s13018-017-0622-z article EN cc-by Journal of Orthopaedic Surgery and Research 2017-07-25

ABSTRACT Objective Diabetic foot ulcer (DFU) is a severe complication with high mortality. High plantar pressure and poor microcirculation are considered main causes of DFU. The specific aims were to provide novel technique for real‐time measurement skin blood flow (SBF) under walking‐like stimulus delineate the first metatarsal head dynamic characteristics because life‐like loading conditions in healthy individuals. Methods Twenty young participants (14 male 6 female) recruited. baseline...

10.1111/micc.12860 article EN Microcirculation 2024-06-05

Studies have yet to determine the optimal height at which posterior tibial tendon (PTT) can be re-routed and length discrepancy different levels in terms of PTT transfer via circumtibial route. This cadaveric study was conducted subcutaneous compare discrepancies heights. Twenty-five fresh normal lower legs were used for measurements. exposed then isolated. An incision along calf made re-route outside fascia. The upper edge classified as point "a." distal tip "b." midpoints intermediate...

10.1186/s13018-014-0121-4 article EN cc-by Journal of Orthopaedic Surgery and Research 2014-11-30

This study was aimed to develop a novel dynamic measurement technique for testing the material properties and investigating effect of continuous compression load on structural mechanical human heel pad during actual gait.The dual fluoroscopic imaging system (DFIS) foot-ground contact pressure-test plate were used measuring properties, including primary thickness, peak strain, stress, elastic modulus, viscous modulus energy dissipation rate (EDR), both at time zero following loading. Ten...

10.1186/s12891-022-05197-w article EN cc-by BMC Musculoskeletal Disorders 2022-03-15
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