A prospective, multicenter, randomized, parallel-controlled, superiority clinical trial evaluating the safety and efficacy of orthopaedic surgery planning software for preoperative planning of hip and knee replacements

INTERVENTION: Hip‐experimental group:Orthopedic surgery planning software;Hip‐control group:Preoperative planning was performed using a traditional surgical plan (based on X‐ray and CT images);Genus‐experimental group:Orthopedic surgery planning software;Genus‐control group:Preoperative planning was performed using a traditional surgical plan (based on X‐ray and CT images); CONDITION: N/A PRIMARY OUTCOME: Complete accuracy; SECONDARY OUTCOME: Accuracy;Software ease of use;Software functionality;Complete accuracy of ball head of hip joint, acetabular lining and knee gasket;Adverse events, serious adverse events;Equipment defects; INCLUSION CRITERIA: 1. Aged 18‐80 years (including 18 and 80 years old), gender is not limited; 2. According to the clinical judgment of the research doctor, in line with the indications for hip and knee joint replacement surgery (such as: primary or secondary osteoarthritis, avascular necrosis of the femoral head, femoral neck fracture, etc.); 3. Preoperative images (X‐rays, CT images) meet the requirements for preoperative planning; 4. Understand the purpose of the trial, follow the protocol, participate voluntarily and sign the informed consent.