1. Anatomy and Classification of Chondral Injury Knee joint

2.  Grade I  Grade II  Grade III  Grade IV

3. o Normal tread “0” o Blister or slight surface breakdown II o Spots where the rubber is pealing off the core III o Exposed core IV Tire Analogy:

4. grade 0 : normal cartilage; grade 0 : normal cartilage; grade I : cartilage with softening and swelling; grade I : cartilage with softening and swelling; grade II : a partial-thickness defect with fissures on the surface that do not reach subchondral bone or exceed 1.5 cm in diameter; grade II : a partial-thickness defect with fissures on the surface that do not reach subchondral bone or exceed 1.5 cm in diameter; grade III : fissuring to the level of subchondral bone in an area with a diameter more than 1.5 cm; grade III : fissuring to the level of subchondral bone in an area with a diameter more than 1.5 cm; grade IV, exposed subchondral bone. grade IV, exposed subchondral bone. Outerbridge classification:

5. o Indication for Procedure o Technique o After Care o Future Expectations Chondroplasty Grade II and III Lesions

6.  Indications for procedure  Technique  After Care  Future Expectations Micro fracture Grade IV

8.  Indications for procedure  Technique  After Care  Future Expectations Oats Procedure Grade IV Greater than 1 square centimeter

11.  Indications for procedure  Technique  After Care  Future Expectations ACI Procedure Very Large Grade IV

12. o Indications for procedure o Technique o After Care o Future Expectations Large fresh Osteochondral Allograft

15.  Indications for procedure  Technique  After Care  Future Expectations Partial Knee Resurfacing

16. Partial Pre-op X-Rays

17. Partial Post-op X-Rays

18.  Indications for procedure  Technique  After Care  Future Expectations Total Knee Replacement Total Resurfacing vs. Replacement

19. Total Knee Pre Op X-Rays

20. Post op X-Rays

21. Thank You!!