A Study of Collagen Scaffold for the Repair of Elbow Cartilage Injury

Exclusion Criteria

• •1. Obvious narrowing of the elbow joint space or bone ankylosis formed between joints;
• •2. Severe subchondral bone injury that cannot be undergoing microfracture surgery;
• •3. Those with severe elbow deformity or systemic osteoarticular diseases;
• •4. Secondary elbow arthritis with psoriasis, syphilitic neuropathy, brown yellow disease, metabolic bone disease;
• •5. Elbow joint cartilage damage caused by joint fractures, infections, tumors, and immune diseases;
• •6. Elbow joint tumors, rheumatoid, tuberculosis, suppuration and complications affecting the joint structure;
• •7. Those who have undergone cartilage defect transplantation from bone marrow mesenchymal stem cell transplantation or other cartilage regeneration surgery within 12 months before surgery;
• •8. Allergies, such as porcine protein allergy, past history or family history of autoimmune diseases;
• •9. Those who regularly use sedatives, sleeping pills, tranquilizers or other addictive drugs;
• •10. Combined with cardiovascular, cerebrovascular, liver, kidney and hematopoietic system and other serious primary diseases, mental illness;
• •11. Those who cannot receive long-term and complex rehabilitation training after surgery;
• •12. Women who are planning to have children, breastfeeding and pregnant women within 12 months;
• •13. Those who have contraindications to MRI examination;
• •14. Those who have special beliefs and cannot accept it (the product source is pig source);
• •15. Those who are not suitable for inclusion by other researchers, such as those who cannot be judged for efficacy.