Clinical trials

The goal of this clinical trial is to compare the clinical effectiveness and safety of robot-assisted autonomous closed reduction versus traditional manual closed reduction in adult patients aged 18 to 80 years with acute, closed intertrochanteric femoral fractures (Arbeitsgemeinschaft für Osteosynthesefragen/Orthopaedic Trauma Association \[AO/OTA\] classification 31-A). The main question it aims to answer is: Whether robot-assisted autonomous closed reduction can achieve a significantly higher rate of excellent and good bone fracture reduction compared to traditional manual reduction, as rigorously evaluated by low-dose computed tomography (CT) and a three-dimensional (3D) quantitative standard. Researchers will compare the robot-assisted autonomous closed reduction group (intervention group) to the traditional manual closed reduction group (control group) to see if the robotic system significantly improves 3D anatomical reduction precision, reduces intraoperative fluoroscopy times and radiation doses, shortens operation times, and ultimately enhances long-term clinical hip functions and health-related quality of life. Participants will be asked to do the following tasks: Complete baseline medical screening, standard hip X-rays, and bilateral full-length thin-layer CT scans before the surgery. Undergo a 1:1 randomized allocation after anesthesia to receive either robot-assisted autonomous closed reduction or traditional experience-based manual closed reduction, both followed by conventional proximal femoral intramedullary nailing internal fixation. Receive post-operative low-dose CT scans before discharge or within 2 weeks after surgery to evaluate the fracture reduction quality. Follow a standardized Enhanced Recovery After Surgery (ERAS) rehabilitation pathway and attend scheduled follow-up visits at 1, 3, and 6 months after the surgery to monitor bone healing, hip functions, and quality of life

This study aims to evaluate the clinical efficacy and safety of an intelligent robotic system for the closed reduction of extra-articular supracondylar femoral fractures (Arbeitsgemeinschaft für Osteosynthesefragen/Orthopaedic Trauma Association AO/OTA 33-A). Traditional manual reduction for supracondylar femoral fractures is often challenging due to strong muscle pull, heavily relying on the surgeon's experience and frequently requiring repeated fluoroscopy. This clinical trial compares robot-assisted closed reduction against traditional surgeon-led reduction methods. The primary goal is to determine if the robotic system improves the precision of bone alignment (excellent and good reduction rate) and functional recovery while reducing surgical radiation exposure.

The goal of this clinical trial is to evaluate the safety and efficacy of robot-assisted closed reduction for patients with femoral shaft fractures. The main questions it aims to answer are: Does robot-assisted closed reduction provide a statistically significant improvement in the excellent and good reduction rates compared to conventional surgeon-performed reduction? How do the two reduction methods compare in terms of surgical efficiency, fracture healing, and patient functional outcomes? Researchers will compare the robot-assisted closed reduction group to the conventional surgeon-performed reduction group to see if robot-assisted surgery improves the precision of fracture reduction, stability of alignment, and post-operative functional recovery while minimizing trauma. Participants will: Undergo standardized screening to ensure they meet the inclusion criteria for acute, unilateral, closed femoral shaft fractures (Arbeitsgemeinschaft für Osteosynthesefragen/Orthopaedic Trauma Association \[AO/OTA\] classification 32). Be randomized in a 1:1 ratio to receive either robot-assisted closed reduction or traditional surgeon-performed closed reduction, both followed by internal fixation. Complete standardized perioperative management and follow-up assessments at 1, 3, 6, and 12 months post-surgery, including functional scales such as the Lower Extremity Functional Scale (LEFS) and the EuroQol Five-Dimensional Five-Level questionnaire (EQ-5D-5L), as well as radiographic imaging to monitor bone healing and potential complications.

This study aims to evaluate the clinical efficacy and safety of an intelligent fracture reduction robot system in treating extra-articular distal tibial fractures. Traditional manual bone setting depends heavily on a surgeon's experience, which can sometimes lead to inconsistent alignment and increased radiation exposure. This clinical trial compares robot-assisted closed reduction against the traditional surgeon-led method. The primary goal is to determine if the robotic system improves the rate of accurate fracture alignment (excellent and good reduction rate) and helps patients recover better.

The incidence of rotator cuff injuries is high, especially among the elderly. With the aging of the population, the number of surgical patients has increased significantly. However, in the early stage after arthroscopic rotator cuff repair, a considerable proportion of patients are troubled by shoulder joint stiffness, which greatly affects the quality of life and satisfaction of patients after the operation. Despite this, there is still a lack of clear evidence-based medical evidence regarding whether preventive extensive shoulder release and joint capsule release during arthroscopic rotator cuff repair can effectively prevent or alleviate postoperative shoulder stiffness. To clarify this clinical issue, this project intends to conduct a single-blind randomized controlled trial (RCT). Before the operation, patients will be randomly divided into two groups under blinding conditions: the experimental group will receive arthroscopic rotator cuff repair surgery along with preventive extensive shoulder joint release and joint capsule release, while the control group will only receive arthroscopic rotator cuff repair surgery. After the operation, the investigators will conduct follow-up visits for 3 months, 6 months and 12 months for the two groups of patients, and perform magnetic resonance imaging (MRI) at the 12th month to assess the healing of the rotator cuff tendons. ASES score, Constant-Murley score, Visual Analogue Scale (VAS) pain score and active range (ROM) assessment were conducted before the operation and at the follow-up at 3 months, 6 months and 12 months after the operation. The occurrence of postoperative complications of the patients was counted at the last follow-up. Through this study, the investigators expect to provide scientific and effective guidance for the prevention of postoperative adhesions of the shoulder joint.

The goal of this clinical trial is to test whether adding a collagen protein scaffold can improve cartilage repair in elbow joint injuries, compared to standard surgery alone. The study will enroll 90 patients (aged 18-55) with elbow cartilage damage who haven't responded to conservative treatments. The main questions it aims to answer are: * Does the collagen scaffold help regenerate better-quality cartilage (measured by MRI scans at 3 and 6 months)? * Do patients experience better pain relief and elbow function after this combined treatment? Researchers will compare two groups: * Experimental group : Receives microfracture surgery + collagen scaffold implant * Active Comparator group : Receives microfracture surgery alone Participants will: * Undergo arthroscopic surgery (either procedure) * Complete follow-up visits at 1 week, 1 month, 3 months, and 6 months * Have MRI scans and functional assessments * Report pain levels and daily activity limitations through questionnaires

In this nationwide multi center study the investigators combine the low dose chest CT scan data with QCT technology, to measure the BMD of spine, VAT and liver fat in the health check subjects. The aim of this study is to evaluate the performance of QCT in the health check field, and further to evaluate the prevalence of osteoporosis, obesity and liver steatosis in health check population across China.

1. To Compare overall rates of second hip fractures in both genders, 2. To determine the effect of hip fracture on proximal femoral volumetric bone mineral density (vBMD), bone structure and muscle by quantitative computed tomography(QCT), 3. To evaluate the contribution of QCT-image analysis to the prediction of the second hip fracture risk. 4. To identify the differences between femoral neck fracture and trochanter fracture following hip fracture

This study is a multicenter, open-label, randomized controlled trial planned to enroll patients with ankle fractures who meet the inclusion and exclusion criteria and are scheduled to undergo internal fixation surgery from the emergency and inpatient wards of multiple hospitals. General and disease-related data will be collected. All eligible patients must voluntarily sign an informed consent form after understanding and accepting the study. Successfully recruited participants will undergo internal fixation surgery at a scheduled time and then be randomly assigned to either the Venostan (horse chestnut seed extract tablet) group or the conventional treatment group. They will receive the corresponding treatments according to the study protocol. Follow-up assessments will include changes in ankle circumference, ankle range of motion, scale evaluation results, laboratory test results, and adverse events. The study aims to evaluate the effects of Venostasin in patients with ankle fractures undergoing internal fixation surgery, exploring its potential to promote postoperative reduction of ankle swelling, enhance early joint function recovery, and investigate its safety in postoperative fracture management.

Brief Summary The goal of this observational study is to evaluate the long-term outcomes of different surgical techniques for sacral Tarlov cysts in adult patients aged 18-75 years diagnosed with symptomatic sacral Tarlov cysts. The main questions it aims to answer are: * Does one surgical technique result in better pain relief (measured by VAS score) and functional recovery (measured by JOA score) compared to others? * How do different surgical techniques impact the long-term recurrence rate and complication rate? Researchers will compare three surgical techniques: 1. Partial cyst wall resection with nerve root sleeve plasty. 2. Partial cyst wall resection with nerve root sleeve reinforcement and reconstruction. 3. Autologous fat/muscle with fibrin glue microscopic cyst filling. Participants will: * Undergo one of the three surgical procedures based on clinical indications. * Complete preoperative and postoperative assessments, including pain and functional scoring, as well as MRI evaluations at baseline and during follow-up. * Participate in a follow-up program for up to 2 years to monitor outcomes and recurrence.