Pelvis/Hip/Femur Flashcards
Abnormal symphysis pubis
> 1cm is abnormal
Look for SI joint widening
Pelvis Fx
- Pelvis fxs usually occur in more than 1 area
o Fxs can also cause pelvic hematoma and urethral and bladder injuries - Ex) widening of pubic symphysis can also lead to secondary fx and sudden widening of R SI
Paget’s disease
Benign lesion of the pelvis
- Increased sclerosis and enlargement of the entire R hemi pelvis
Pelvis Stress Fx
- History of overuse
- Relief w/ Non WBing
- Insidious in nature
- local pain, tenderness, swelling
- Typical site = pubic ramus
- Bone scan is diagnostic early
Insufficiency Fx
- Abnormal stresses to normal bone
- Normal stresses to abnormal bone: insufficiency Ex) Osteoporosis
- HONDA Sin = sacral insufficiency fx
Frog Leg View
(abducted view) o Iliac crest o Ilium o Sacrum o SI joint o Ischial spine o Acetabulum o Superior/Inferior pubic ramus o Pubic symphysis o Femoral Head/Neck o Greater/Lesser troch
AP View
o Supine NWB
Acetabulum
Femoral head/neck
Greater/lesser troch
Hip Axial View
o Femoral Head/neck
o Lesser/Greater trochanter
o Ischial tuberosity
Posterior Hip Dislocation
o POSTERIOR dislocation most common (Head displaced SUPERIOR and LATERAL on film)
Dash board injury
Anterior Hip Dislocation
o ANTERIOR dislocation (Head displaced INFERIOR and MEDIAL)
Most common fracture?
Femoral Neck - due to OP Intertrochanteric region -Trauma Shorted Leg w. IR
Osteoarthritis of hip
Hip pain most common cause
o Pt presents w/ pain and -mobility, starting with IR
o DJD of hip most patients
o DJD includes joint space narrowing, subchondral cysts, sclerotic borders and osteophytes
Altman Criteria Test 1
Hip pain + IR <15 + Flexion < 115
Altman Criteria Test 2
if hip IR > 15 + pain w/ IR + 50yrs plus + morning stiffness
Aseptic Necrosis
- Femoral head flattened, irregular, sclerotic
- Use MRI
- Acronym
o A-nemia (sickle cell)
o S teriods
o E thenol
o P ancreatitis
o T rauma
o I idiopathic
o C asisson’s disease (deep sea diver or pressure change occupation)