Clinical Outcomes of Arthroscopic Surgeries for Shoulder and Knee Sports Injuries

Inclusion Criteria: * Age \>= 8 years. * No gender restrictions. * Definitive diagnosis of shoulder or knee sports injuries or related joint conditions. * Scheduled to undergo elective, standard-of-care surgery at the study center (procedures include but are not limited to: arthroscopic meniscus repair/meniscectomy, cartilage repair, cruciate ligament reconstruction, high tibial osteotomy \[HTO\], unicompartmental knee arthroplasty \[UKA\], arthroscopic rotator cuff repair, shoulder stabilization, and shoulder arthroplasty). * Clear consciousness, with the ability to read, understand, and communicate. * Willing and able to comply with postoperative follow-up requirements. * Voluntarily signed the written informed consent form. Exclusion Criteria: * Patients requiring emergency surgery due to acute, severe trauma (e.g., open fractures, polytrauma). * Coexisting severe neurological or psychiatric diseases, or cognitive impairment that prevents understanding of the informed consent or cooperation with follow-up. * Patients in an involuntary state (e.g., under coercion). * Refusal to sign the informed consent form or refusal to participate in the study. * Currently participating in other interventional clinical trials that may confound or affect the clinical outcomes of this study.