Core Knee MRI (Final): Cartilage, SIF, OCD & Pitfalls

🔹 Intro 0:00 Intro 🔹 Cartilage & Repair 1:28 Osteochondral Lesions — Surface-intact injury, intrachondral signal 4:58 Cartilage Delamination — Deep layer separation, subchondral edema 7:38 Chondral Flap — Fissure to unstable flap progression 10:14 ACI — Postoperative evolution, hyaline-like repair 12:44 Stem Cell Repair (Cartistem) — Healing stages and maturation 15:07 Failure of Cartilage Repair — BME, delamination, hypertrophy 18:38 OATs — Good vs poor outcome, graft integration 🔹 Subchondral Bone & OCD 22:07 OA vs SIF — Cartilage vs bone-driven pathology 24:17 SIF Classification — Fracture line to collapse 30:04 OCD (X-ray) — Typical location, fragmentation 31:29 Normal Pediatric MRI — Epiphysis and physis anatomy 34:07 OCD Pathogenesis — Subchondral origin 36:18 OCD Stability — Stable vs unstable lesion 🔹 Osteonecrosis 38:43 Osteonecrosis — Serpiginous rim, double line sign 40:20 Osteonecrosis with Collapse — Subchondral fracture, progression 🔹 Arthroplasty Complications 43:13 Loosening vs Osteolysis — Mechanical vs biologic 45:59 Aseptic Loosening — Progressive lucency, migration 47:40 Osteolysis — Focal bone loss, synovitis 49:53 Periprosthetic Infection — Fluid, edema, synovitis 53:47 DDx of Effusion — Infection vs particle vs hemarthrosis 🔹 Infection 56:52 Early Septic Arthritis — Effusion, periarticular edema 59:45 Septic Arthritis → Osteomyelitis — Follow-up progression 🔹 Inflammatory & Crystal Arthropathy 1:01:45 Rheumatoid Arthritis — Synovitis, pannus, erosion 1:05:23 Gout (Ligament) — Tophus mimicking tear 1:07:53 Gout (Multi-compartment) — Tendon + bone involvement 1:11:24 Gout (Extensor Mechanism) — Intratendinous tophus 1:13:24 Gout vs Septic Arthritis — Key differentiation 🔹 Tumor-like Lesion 1:16:55 TGCT — Low signal mass, hemosiderin 🔹 Bursae & Soft Tissue 1:19:58 Pes Anserine Bursitis — Superficial to MCL 1:22:00 Semimembranosus Bursitis — Deep to MCL, J-shape 1:23:41 Semimembranosus Tendinopathy — Insertional cyst 1:25:17 MCL Bursitis — Between superficial and deep MCL 1:27:04 ITB Friction Syndrome — Extra-articular edema ✅ More structured MSK MRI guidance is available in my book, Visualizing MSK Radiology: A Practical Guide to Radiology Mastery on Amazon. https://www.amazon.com/dp/B0DJGMHMFS Core Knee MRI (Final): Cartilage, SIF, OCD & Pitfalls Final Part: Don’t Miss These Knee MRI Findings Before You Finish Knee MRI… Watch This knee MRI, cartilage injury MRI, chondral lesion, cartilage delamination, chondral flap, osteochondral lesion MRI, subchondral bone marrow edema, SIF knee, subchondral insufficiency fracture, OCD knee MRI, osteonecrosis knee MRI, cartilage repair MRI, ACI knee MRI, microfracture knee, Cartistem MRI, osteochondral autograft transplantation, OATs knee, knee MRI interpretation, MSK radiology knee, knee MRI pitfalls #DrSlothic #SlothicRadiology #MSKMRI #KneeMRI #CartilageInjury #ChondralLesion #CartilageDelamination #ChondralFlap #OsteochondralLesion #SIFKnee #SubchondralFracture #OCDKnee #Osteonecrosis #CartilageRepair #ACI #Microfracture #Cartistem #OATS #MusculoskeletalRadiology #RadiologyEducation