Joints 2 Flashcards
Carrying angle male and female why
More pronounced in female due to wider set hips / pelvis
Males 10-15
Women above 15
What’s the Q angle
Femoral shaft proximal end pushed out laterally by femoral neck so shaft passes inferomedially
Elbow movements
Flexion C6
Extension c7
Radioulnar joint movement
Supination c6
Pronation C7 c8
Knee joint movements
Flexion L5 S2
Extension L3 L4
Further extension (kicking) L1 L2
Similarities with humerus and femur
Both have lateral and medial epicondyle on heir condylar processes
Humerus articulation
Humerus articulates withbradial head laterally
Articulates with hook shaped olecranon and Coronoid processes of ulna medially
Function of patella
Prevent dislocation during knee extension - quadriceps
Consequences of patella
Patello-femoral arthritis
Patella dislocation or subluxation
Where is patella
Sesamoid bone in tendon of quadriceps
What does large lateral facet of patella articulate with
Prominent lateral femoral condyle
Parts of elbow joint
Radial fossa and capitulum
Coronoid fossa and Coronoid process of ulna
Olecranon fossa and olecranon process of ulna
Trochlear notch ofulna
Radial head
Coronoid process
What joints are required for supination and probation
Superior and inferior radioulnar joints
Where does fibrous capsule of elbow attach
Articular margins as including the superior radioulnar joint, fossae radial, Coronoid and olecranon
Where are ligaments absent and present in elbow
Strengthened by lateral and medial ligaments
No anterior or posterior ligaments
What holds the radial head in place
Anular ligament - allows rotatory movement for supination and pronation
Pulled elbow
When radial head dislocated from annular ligament (children)
Elbow ligaments
Radial collateral ligament - lateral epicondyle to anular ligament
Ulnar collateral ligament - triangle - 2 strong medial epicondyle to cornoid process and
1 weaker posterior oblique band to olecranon
Pulled elbow association
Dislocated elbow with fractured olecranon is common
What’s subluxation
Comes away from annular ligament downwards motion
What’s dislocation of elbow look like
Away from annular ligament and pulling to the side
What is knee dependent on for stability
Muscles
Where does fibrous capsule of knee attach
Articular margins
Ligaments of knee
Lateral collateral ligament
Medial collateral ligament
Crucifer ligaments in middle
Menisci inside the actual joint
Anteriorly fibrous capsule replaced by
Quadriceps tendon (patellar ligament) and patella also augmented by iliotibial tract and by patellar retinacular from quadriceps
Posterior knee joint
Fibrous capsule thin augmented by oblique popliteal and acruate ligaments inferior to which is an opening in capsule for tendon of popliteus
Collateral ligaments of knee
Lateral - lateral epicondyle to head of fibula
Not fused to joint capsule
Medial - medial epicondyle to tibia condyle, superior and medial surfaces
Fused to joint capsule and meniscus
Which ligaments are and aren’t fused to knee joint capsule
Lateral fibular collateral ligament not fused
Medial tibial collateral ligament fused to joint capsule and meniscus