LE Pathology Flashcards
what are the s/s of OA?
stiffness following inactivity (am) is often the 1st symptom
pain unrelated to imaging present in buttock, groin, thigh, knee
pain not proportionate with radiograph
pain subsequent to exercise may persist
loss of motion in capsular pattern (IR>ext>abd) with capsular end feel
what is the end feel with OA?
capsular
what is the capsular pattern of OA in the hip?
IR>ext>abd
what would radiographs of hip OA find?
<2.5 mm Jt space
osteophyte formation
subchondral bone sclerosis and cysts
whiter appearance of bone
(radiographs lack sensitivity)
what are the hip tests for hip OA?
femoral grind (Scour)
flexion abd ER (FABER) test
what are the interventions for hip OA?
educate and modify ADLs
regular and controlled loading interspersed w/rest (or useful avoidance) is encouraged
ROM and prolonged stretching (FABER)
PREs
manual therapy
why do we do ROM and prolonged stretching (FABER) for hip OA intervention?
for generalized capsular tightness to dispurse WB forces through more of the jt
why do we do PREs for hip OA intervention?
to strengthen the muscular around the jt to add stability around the jt
why do we do manual therapy for hip OA intervention?
to reduce capsular tightness
what is the progression of interventions in hip OA?
start with isometrics, mid-range, straight plane, OKC and move towards full range, triplanar, and CKC
what is the pathogenesis of congenital hip dysplasia?
in utero, subluxation may occur that results in a flattened posteriomedial femoral head, anteversion, and shallow acetabulum
when the femoral head dislocated and rests on the iliac crests in congenital hip dysplasia, what can happen?
a false acetabulum can form around the femoral head
t/f: prolonged and repeated dislocation of the femoral head in congenital hip dysplasia may cause greater incidence of hip OA
true
congenital hip dysplasia is also called what?
developmental dysplasia of the hip (DDH)
t/f: early diagnosis of congenital hip dysplasia is crucial?
true
what are the diagnostic tests for congenital hip dysplasia
Barlow (pop out) and Ortolani (pop back in) tests
what are the signs of congenital hip dysplasia?
gluteal fold height differences, knee height differences, decreased amount of hip abduction
what are the abnormal gait patterns of congenital hip dysplasia?
toe walking, in-toeing/out-toeing gait
what are the interventions for congenital hip dysplasia?
reduce the hip
Pavlick harness uses flexion and free abduction to produce effective reduction in 90% cases
how does the Pavlick harness work in congenital hip dysplasia?
it uses flexion and free abduction to produce effective reduction in 90% cases
how long does the Pavlick harness have to be worn?
3-6 months of continuous wear
if the Pavlick harness is ineffective, what may be done for congenital hip dysplasia?
skin traction, closed reduction, spica cast
t/f: congenital hip dysplasia puts pts at risk for THA later in life
true
what is a SCFE?
when the femoral neck slips up off the femoral head
what is the epidemiology and pathogenesis of SCFE?
most common disorder of the hip in adolescents
girls 12 yo, boys 14 yo
displacement of the femoral neck from the capital femoral epiphysis
coxa valga of the developing femur produces shear forces
injury occurs from innocuous causes
neck migrates up and out as the head remains in the acetabulum
neck fuses with the capital epiphysis toward the end of adolescence
injury in SCFEs occur from what causes?
innocuous causes
45% of pts with SCFE have what as the initial symptom?
knee or lower thigh pain
t/f: radiographs, physical exam, and symptoms are used to determine if the hip is stable or unstable in SCFE
true
intervention for SCFE focuses on what?
symptom relief, containment of femoral head, and restoration of ROM
what are the interventions for SCFE?
traction for days to weeks
PWB
NSAIDs
what is the etiology of Legg-Calve-Perthes disease?
avascular necrosis - trauma resulting in ischemia
idiopathic osteonecrosis - atraumatic mechanical interruption of femoral head circulation associated w/ETOH and steroid use
t/f: LCPD produces osteochondritis dissicans (damage to jt surface)
true
what is LCPD?
damage to vascular supply that may occur at birth
t/f: 70-90% of LCPD pts are pain-free regardless of intervention
true
what is the emphasis of treatment in LCPD?
containment of the femoral head and avoiding collapse
what does the Scottish Rite brace do for LCPD?
holds the femur in abduction w the ability to flex
what are the s/s of LCPD?
pain in groin, buttock, and proximal thigh
exacerbated by WB
non-capsular loss of motion
antalgic gait
radiographic evidence shows coxa magna (enlarged femoral head) and demineralization
what is the intervention for LCPD?
surgical intervention is usually done (hip resurfacing vs THA)
t/f: 70-80% of LCDP progress to collapse of the femoral head
true
what are the 2 types of FAIs?
CAM and pincer
what is a CAM lesion?
overgrowth of the femoral head
what is a Pincer lesion?
overgrowth of the acetabulum
what are the symptoms of an FAI?
anterior hip/groin pain
pain with flexion, active SLR
intra-articular jt sounds
what are the signs of an FAI?
decreased flex, abd, and rotation
MR arthrogram (70-91% accurate)
what is the pathophysiology of acetabular labral tears?
chondrocyte proliferation of labral fibrocartilage at the border of the defect
increased microvascularity at the base of the tear adjacent to the bone insertion
osteophyte/stress that caused the tear may cause bone irritation and growth
labrum becomes detached or torn from the acetabulum
what is the most common cause of hip dysfunction in young, active populations?
acetabular labral tears
what are the anatomical features of type 2 acetabular labral tears?
variable depths w/in substance of the labrum
what is the cause of groin pain in >20% of athletes?
acetabular labral tears
what is the most common location for acetabular labral tears?
anterior>posterior>superior (lateral)
what is the etiology of acetabular labral tears?
degenerative, dysplastic, traumatic, idiopathic
how are acetabular labral tears diagnosed?
torsional forces in WB
pain in the groin, trochanteric region, buttock w/flexion and rotation (likely IR)
sharp pain w/clicking, catching, locking (FAI usually doesn’t click)
what are the anatomical features of type 1 acetabular labral tears?
detachment of the labrum from the cartilage at the transition zone, which may extend to subchondral bone
what causes reproduction of pain with anterior labral tears?
abd, ER, flexion TO add, IR, ext
t/f: acetabular labral tears are confirmed by arthrography, MRI w/contrast
true
what causes reproduction of pain with posterior labral tears?
add, IR, flexion TO abd, ER, ext
what are the interventions for acetabular labral tears?
bed rest w/traction
NSAIDs
protected WB phase
arthroscopy w/labral resection or reattachment
what is the second most frequent cause of lateral hip pain?
greater trochanteric bursitis
where would a pt be tender if they had greater trochanteric bursitis?
with direct palpation over the GT
greater trochanteric bursitis would cause weakness of what muscle groups?
abductors and ERs
what is the cause of greater trochanteric bursitis?
direct trauma or repeated friction
greater trochanteric bursitis would cause tightness of what muscle group?
adductors
what would cause pain with greater trochanteric bursitis?
stretching the ITB into add, ER, IR
resisted abd, ext, ER
t/f: greater trochanteric bursitis is associated with LBP
true
t/f: greater trochanteric bursitis may cause Trendelenburg gait
true
what is the intervention for greater trochanteric bursitis?
stretch the TFL/ITB
phonophoresis, iontophoresis
transverse friction massage (TFM)
glut med, ER PREs
correction of biomechanical causes anywhere along the chain (likely overpronation)
patellofemoral pain syndrome (PFPS) makes up __% of outpatient visits and __% of all knee pathologies
5.4, 25
PFPS is the most common in what population?
ectomorphic female athletes
what is the etiology of PFPS?
muscles imbalances
inflammation
instability
anatomic variance
LE alignment
foot contributions
hip contributions