Ch 10-Knee
The medial meniscus is shaped like what letter?
C
What is the medical name for a patella that sits too inferior?
Patella Baja
Weakness of what hip movement/action causes dynamic valgus collapse?
Hip Abductors (Lateral Muscles)
Apley's Compression and Distraction
Meniscus Tear
14 year old pt. presents with anterior knee pain that started 2 months ago. Obvious enlargement of tibial tuberosity. What is the #1 DDx?
Osgood-Schlatter's Disease
What ligament prevents posterior tibial translation?
Posterior Cruciate Ligament (PCL)
What ligament is damaged with a lateral dislocation?
Medial patellofemoral ligament (MPFL)
Tight IT Band/TFL can cause what syndrome?
External Snapping Hip Syndrome
Hip Scouring
Labrum Tear
Pt. acutely landed on a flexed knee with ankle in plantar flexion and felt a pop. Pain in the posterior knee. What is the #1 DDx?
PCL Sprain
The MCL prevents what motion/force at the knee? (Not any of the 5 forces)
Valgus
Increased joint reaction forces damage what structure on the patella and femur, causing Patellofemoral Pain Syndrome?
Articular Cartilage
What are the 3 types of abnormal bony growth for FAI?
Cam, Pincer, Mixed/Both
Varus Stress Test
LCL Sprain
Football player has severe acute hip pain and can't move or get off the ground. Leg appears longer and externally rotated compared to the other. What is the #1 DDx?
Femoral Neck Fracture
What structures are damaged in the unhappy triad?
ACL, MCL, Medial Meniscus
Name the condition that is apophysitis of the patella?
Sinding-Larsen-Johansson Disease
In what population does slipped capital femoral epiphysis occur in?
Adolescent Boys (overweight and experiencing a growth spurt)
FADDIR
Femoral Acetabular Impingement (FAI)
Pt. has lateral knee pain that started 2 weeks ago. Mild swelling present. TTP superior to lateral epicondyle. Positive Ober's Test. What is the #1 DDx?
IT Band Compression Syndrome
Dynamic Valgus Collapse MOI can create an osteochondral lesion where?
Posterior Lateral Corner
List the 5 anatomical structures that can be acutely injured in the extensor mechanism?
Quad muscle, Quad tendon, Patella, Patellar tendon, Tibial tuberosity
Hamstring strains can have pain with what 2 motions actively and what 2 motions passively?
Active - Knee flexion and hip extension
Passive - Knee extension and hip flexion
Patellar Apprehension Test
Patellar Instability/Dislocation/Subluxation
40 year old marathon runner has hip pain that started 5 years ago. Pain is a deep achiness that gets sharp at times. Decreased ROM and strength. Top 3 DDx?
Femur Stress Fx, Labrum Tear, FAI