Anatomy of Joints : LE X Flashcards Preview

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Flashcards in Anatomy of Joints : LE X Deck (24):
1

Femoracetabluar Impingment
**

Condition where bony abnormalities of the femur, acetabulum or both result in pain and altered mechanics at the hip joint
Causes impingement and damage to acetabular cartilage

2

Meniscus tears - random
**

Most common knee injury
Athletes susceptible

3

Anterior Cruiciate Ligament Tears
**

ACL - most injured ligament
5-% occur in conjunction with meniscus injury
Tested with Drawer test (testing anterior translation of leg with respect to femur)

4

Ankle Sprains
**

Occurs with excessive motion at ankle
Stretching or tearing of ankle ligaments
Inversion sprain most common, lateral ligaments

5

Hip Joint - def, characteristics

Femur heads + acetabulum of hip joint
Three degrees of motion

6

Hip Joint Ligaments : name, fxn
**

Illiofemoral ligament, Pubfemormal ligament, Ischiofemoral ligament
Primary stabilizers of hip joint

7

Illiofemoral Ligament - location, characteristics
**

between pelvis and femur
Helps you stand upright - maximally taut in extension
Strongest ligament

8

Pubofemoral Ligament
**

pubic part of hemipelvis to femur
taut in abduction (an individual who can abduct like crazy need laxity in this ligament)

9

Ischiofemoral Ligament
**

pelvis and femur
Restrict internal rotation - taut in internal rotation

10

Acetabular Labrum - def., fxn
**

fibrcartilagonous structure around perimeter of the bony acetabulum.
increases congruence btwn joint surfaces = joint stability

11

Ligamentum Teres
**

Inserts into fovea capitis
includes small amount of blood supply to femur

12

Blood supply to head of femur

important - hip fractures - neck of femur break
compromises blood supply to femur

13

Motions of the Hip
**

Extension/Flexion
Abduction/Adduction
Internal Rotation / External Rotation

14

Knee joint - composition
**

Femur and Tibia
Femur and Pattella

15

Valgus - def, if strain
**

`Kneespoint together
Valgus movement restricted by medial collateral ligament

16

Varus
**

Knees point apart
Verus movement restricted by lateral collateral ligament

17

Dorsiflexion actions

Rise up on heels

18

Plantarflexion actions

Rise up on toes

19

Inversion - action, location, sprains
**

soles of foot move medially
@ Subtalar joint (not ANKLE joint)
sprains more common, injures lateral ligaments

20

Foot Arches - fxn. ligaments
**

Absorb shock and distribute forces during activity
supported by foot ligaments
Long plantar ligament
Short Plantar Ligament
Calcaneoavicular ligament

21

Ligaments of ankle - Lateral + others
**

*Anterior talofibular ligament
*Calcaneofibular ligament
Deltoid Ligament
Posterior Talofibular Ligament

22

Malleoli can be fractured

KNOW

23

Knee support
**

Lateral Collateral Ligament
Medial Collateral Ligament
Anterior Cruciate Ligament
Posterior Cruciate Ligament
Menisci - support and shock absorbance - medial susceptible to injury from sudden extension or rotation while leg fixed

24

Ankle Joint - a.k.a, compoments. motions
**

Talocural
Talus and Tibia
Mallelous (Medial and Lateral)
Plantar and Dorsiflexion