Exam (elaborations)
JR 101 Week 1.
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Exam of 5 pages for the course JR 101 - at JR 101 - (JR 101 Week 1.)
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JR 101 Week 1Conditions of the hip that may require hip arthroplasty - ANS-OA
RA
post traumatic arthritis
hip fracture
avascular necrosis
bone tumor
modular solutions mean - ANS-the solutions or products allow for different combinations
of stem, neck length and head size
hemi - hip indications - ANS-femoral neck fractures
idiopathic avascular necrosis
nonunions
valgus - ANS-greater angle b/w joint limbs than normal (kncoked knees)
varus - ANS-lesser angle b/w joint limbs than normal
Rule of thirds for describing fractures - ANS-Proximal, Middle, distal; "fracture of the
proximal third"
types of fracture patterns - ANS-transverse, oblique, spiral, wedge
break types - ANS-comminuted - shatters
greenstick - incomplete break
Scapula - ANS-3 angles: inferior, superior, lateral
borders: lat, med, sup
Pelvis bone landmarks - ANS-Iliac Crest
Illium
ASIS - Anterior -Superior Illiac Spine
Ischium
Pubis
Acetablulum
, Thigh Hip landmarks - ANS-femur head and neck
greater/lesser trochanter
trochanteric fossa
ontertrotrochanteric line
clacar - strongest bone area on body
linear aspera - line down the shaft of femur
Leg knee - ANS-intercondylar tuebrcles - medial and lateral, where ACL and PCL attach
condylea
Gerdys tubercle - lateral side
tibial tuberosity - patella tendon inserts
types of bone structure, microscopic:
-lamellar
-woven
cancellous
compact
plexiform
haversian - ANS-cancellous bone is spongy
cortical bone is very hard
Wofs LAw - ANS-Bone adapst its materials properites to mechanical demands
tensile force produces what fracture - ANS-transverse fracture
compression force produces what frcture - ANS-oblique
twist force produces what fracture - ANS-spiral
bending force produces what fracture - ANS-wedge fracture (butterfly)
multiple loads creates what fracture - ANS-comminuted
Alloy - ANS-composed of two of more chemical elements in which at least one is metal
i.e. stainless steel
Titanium alloy Ti - 6AL - 4V - ANS-Titanium 6% Aluminum 4% Valium
Stainless Steel 316L
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