Pathologies Related to the Pelvis and Hip I Flashcards
What is a pathological hip fx?
proximal femur fx, particularly the neck, due to disease
What is the etiology of a pathological hip fx?
Conditions with compromised bone
- Osteoporosis and Osteomalacia
- Osteogenesis Imperfecta- congenital and inherited brittle bone disease
- Paget’s disease- chronic bone disorder with abnormal bone turnover that results in bigger but softer bones
- Tumors
What is Paget’s disease?
chronic bone disorder with abnormal bone turnover that results in bigger but softer bones
What is Osteogenesis Imperfecta?
congenital and inherited brittle bone disease
What are risk factors for a pathological hip fx?
vary based on the above etiologies
What is the incidence/prevalence of pathogenic hip fx?
VARIES… but
- Mostly older
- European Americans
What is the pathogenesis of a pathological hip fx?
gradual weakening of bone resulting in fracture
What are some clinical manifestations of a pathological hip fx?
Fx S&S plus:
- Painful snap and possible giving way
- Groin and possibly anteromedial thigh P! and to the knee and lateral hip
- Increased: WBing
- Decreased: Non-WBing
What will we observe in a patient with a pathological hip fracture?
Shortened and excessively externally rotated LE due to displacement and pull of ERs, respectively
- Antalgic and asymmetrical gait
What will we find in ROM for a pathologcial hip fracture?
several limitations but particularly IR limitation
What special tests will be positive for a pathological hip fx?
(+) Patellar-pubic percussion
- Possible sign of the buttock
What is sign of the buttock?
collection of signs indicating a serious pathology
What is the etiology of sign of the buttock?
- Fracture
- Tumor
- Infection
- Hematoma
What will we find in the hx in someone with sign of the buttock?
possible cancer, infection, or fracture S&S
What will we observe with sign of the buttock?
gluteal swelling
What will we find with ROM in someone with sign of the buttock?
- Hip flx limitation the same no matter knee position with empty end feels
- Same degree of trunk flexion limitation in relation to femur and trunk position
What will we find with resisted testing with sign of the buttock?
weak and painful glutes
What kind of referral is sign of the buttock?
Urgent referral to MD but emergent if fracture due to possible displacement and
vascular compromise
What are the PT implications of a pathological hip fx?
Significant morbidity, mortality, and health issues arise from resulting sedentary
situation
When should people be having a DEXA scan?
Biological women at 65 yrs.
Biological men at 70 yrs
What kind of referral is a pathological hip fx?
Immobilize with emergent referral due to possible displacement and potential vascular compromise
What is osteonecrosis also known as?
aka avascular necrosis or AVN of the femoral head
What is the incidence/prevalence of osteonecrosis?
- May be bilateral in 60% of cases
- Older > younger individuals
What is the etiology and risk factors for osteonecrosis?
insufficient arterial supply to femoral head
associated with:
- Trauma
- Fx/dislocation
- Slipped femoral epiphysis or growth plate
Where does the ligamentum teres attach proximally and distally?
- Proximally in acetabulum
- Distally in fovea of the femoral head
What artery does the ligamentum teres contain to supply the head of the femur?
Medial epiphyseal a. to supply
head of femur
What other arteries aside from the medial epiphyseal artery supply the femoral head?
Femoral head also supplied by
medial and lateral circumflex aa.
What is the etiology of osteonecrosis?
Insufficient arterial supply to femoral head
What are some risk factors of osteonecrosis?
- Vascular abnormalities
- Toxicity i.e., radiation, smoking, alcoholism
- Sickle cell disease with a shortage of healthy oxygen carrying RBCs
- Chronic corticosteroid and oral contraceptive use
- Bone marrow pathology
- Metabolic syndrome