Biomechanics

7/29/99

 

All multiple choice questions—50

 

Spine

• Disc—shape, size, vascular supply, front and back, weakest points, bulges, make-up
• Vertebrae body
• Facets—what there for, pain patterns, anatomy, what changes as we go
• Posture—curves of the spine—anatomy shapes
• Pain syndromes—LBP, etc

Shoulder/hip

• Ball-n-socket joints—advantages and disadvantages
• Shoulders—unstable, ­ ROM
• Hip angles—femoral shaft angle--125° +/-5, femur neck angle at birth way back and moves forward 12-15 backwards in adulthood (not seen in AP view

Knee

• ACL, PCL
• Meniscus—cushion and stabilize
• Collaterals
• Arthritis—high stress, susceptibility to injury
• Soccer involves twisting
• Football is contact sport
• Bad to bend more than 90°--patella turns and have less surface area to distribute the stress

Ankle

• Stable joint—talus and tibia, strong ligament and capsule
• Injured a lot
• Closed pack position—dorsiflexion (everything else is unstable)
• Injury in this position will break bone
• Open pack position—everywhere else
• Injury to soft tissue

Foot

Gait