1. Knee Osteoarthritis
   1. Treatment
      1. Subtopic 1
2. Cartilage Injuries
   1. Articular
      1. Localized
         1. Osteochondritis Dissecans (OCD)
      2. Generalized
         1. Osteoarthritis
   2. Fibrocartilage
      1. Meniscus
         1. Entrapment Tests:
3. Connective Tissue
   1. Dense (type 1 collagen)
      1. Cruciate Ligaments (ACL/PCL)
         1. ACL Tests:(anterior translation)
         2. PCL Tests: (posterior translation)
   2. Fibrous
      1. Collateral Ligaments (MCL/LCL)
         1. MCL (Valgus stress)
         2. LCL (Varus Stress)
4. Anterior Knee Pain
   1. Patellofemoral Pain (PFP)
   2. Fat Pad/ Plica
   3. Knee Bursitis
   4. Patellofemoral Instability
   5. Tendon Injury
      1. Quadriceps/Patellar Tendon Rupture
5. Bony Disorders
   1. Apophyseal Injuries
      1. Iselin Disease (fifth MT)
      2. Sever's Disease (calcaneus)
      3. Osgood-Schlatter (tibial plat.)
      4. Sinding-Larsen-Johansson Lesion (patella)
   2. Bone Bruise
      1. Subperiosteal contusion/hematoma
      2. Subchondral bruise/fracture
      3. Interosseous bruise
   3. Baker's Cyst
   4. Bipartite Patella
   5. Patellar Fracture
   6. Tibial Plateau Fracture (intra-articular)
   7. Segond Fracture
   8. Dislocations
6. Hip Disorders
   1. HIP OA
      1. Signs/Criteria
         1. Tests and Measure
         2. Key Impairments To Assess
   2. Hip Avascular Necrosis (AVN)
      1. Signs/Tests
         1. Risk Factors
   3. Femoral Acetabular Impingement (FAI)
      1. Signs/Deformities
         1. Risk Factors/Presentations
            1. Examination
   4. Hip Labral injuries
      1. Signs/Tests
         1. Risk Factors
            1. Non-Surgical Protocol
            2. Post-Surgical Protocol
            3. Muscle Recruitment
            4. Non-surgical
            5. Post-Surgical Precautions
   5. Hip Bursitis
      1. Signs
         1. Other Extra-Articular Bursitis of HIP
   6. Hernias/Athletic Pubalgia
      1. Causes of Groin Pain
         1. MOI: Athletic Pubalgia
            1. Schematic
            2. Signs/Symptoms
   7. Snapping Hip Syndrome
      1. Different Forms of Snapping Hip
         1. Signs/ Findings
            1. Internal Treatment
            2. External ITB Examination
   8. Hip/Femur Fractures
      1. MOI/Risks
         1. Fracture Types
            1. Stress Fracture Examination
   9. Muscle Strains/Contusions/Heterotopic Ossification
      1. Hamstring Strain MOI
         1. Quadriceps contusion
            1. Contusion vs. Strain
            2. Ossification/Myositis Ossificans
            3. Aggravating Factors/Development
            4. Myositis Ossificans
      2. Signs and Symptoms (hamstrings)
   10. Other Muscle/Inflammation Injuries
       1. Adductor Strain
       2. Piriformis Syndrome
       3. Glute Med/Min Injury
       4. Osteitis Pubis
       5. Nerve Entrapement
   11. Pediatric/Adolescent Hip Disorders
       1. Differential Diagnosis
          1. Developmental Dysplasia
             1. Septic Arthritis
             2. Acute Transient Synovitis
             3. Legg-Calve-Perthes Disease
             4. Slipped Capital Femoral Epiphysis (SCFE)