Hip and Ankle/Foot Flashcards
Causes of AVN
Trauma EtOH Steroid use RA Sickle cell "Bends"
HPI of AVN
Progressive groin pain
Achy or throbbing
Decreased ROM due to pain
PE of AVN
Pain c ROM of hip
Dec ROM
Antalgic gait
What will X-ray show in AVN?
First X-rays may be nl
First X-ray change will be crescent sign
What imaging needs to be done to diagnose AVN?
MRI
Tx for AVN
Protected WB Discontinue EtOH/steroids Bone grafting Fibular grafting Replacement
How does AVN present in children?
Leg-Calve-Perthes dz
-Idiopathic osteonecrosis in children
History of limping that worse with activities, groin/hip pain
Dec ROM of hip
Characteristics of hip dislocation
90% posterior
High energy trauma
Other associated injuries
Hx/PE components of a hip dislocation
Unable to move/WB
Shortened, internally rotated, and flexed
N/V exam
Tx of hip dislocation
CR vs open
ALWAYS get post-reduction films
What are the types of hip fxs?
Intrascapular (femoral neck) fx
Intertrochanteric fx
Subtrochanteric fx
RFs of hip fxs
Age Female Smoking Diet Medications Neuropathies EtOH
Components of hip fxs
Fall/trauma cause Inability to WB Groin pain Leg is shortened and externally rotated Unable to straight leg raise
Hx components of OA
Gradual onset Groin pain May refer to knee Worse with activity Limp/stiffness
PE components of OA
Decreased ROM of hip (internal rotation)
Antalgic gait
Weakness in hip muscles
X-ray findings in OA
Joint space narrowing
Subchondral cysts
Sclerosis
Bone spurs
Tx for OA
Tylenol NSAIDs Activity modification Assistance devices Low-impact exercise Strengthening Injections (intra-articular)
Hx components of trochanteric bursitis
Inflammation of bursa Lateral hip pain Night pain Unable to lie on side Pain with activity
PE components of trochanteric bursitis
Pain over greater trochanter
Tight IT band
Rest of exam is usually nl
Tx for trochanteric bursitis
NSAIDs
Injection
PT
Modifications (i.e., sleep with pillow btwn legs)
What is nl ROM for the ankle joint?
15 degrees dorsiflexion
55 degrees plantarflexion
Slap gait
Weakness of foot/ankle dorsiflexors
Hear slap during walk
Drop foot gait
Anterior tibial weakness or peroneal nerve palsy (sciatic)
Difficulty clearing toes
Trendelenburg gait
Weakness of hip abductors (superior gluteal n.)
If bilateral- waddling
Where does the posterior tibial tendon run?
Behind medial malleolus
What does posterior tibial tendon dysfunction look like?
Ankle suppination
Too many toes
Pes cavus
High arch
Pes planus
Low arch
Claw toe
Hyperextension of MTP joint and flexion of IPs
Causes: DM, RA
Hammer toe
PIP flexed, DIP extended
Caused by improper shoes
Mallet toe
PIP extended, DIP flexed
Caused by improper shoes
Tx for toe deformities
Splints
Good shoes
Stretching
Surgery
Hallux valgus
Bunion
Lateral deviation of great toe at MTP joint
F > M (high-heeled tight shoes: higher risk)
Severity based on degree
How to determine severity of hallux valgus
Take the angle of the first and second metatarsals
PE of hallux valgus
Pain
Callus
Shoe wearing
Tx of hallux valgus
Changing shoe wear (pad shoes, wider shoes) OR
Refer for surgery
Nl metatarsal angle
0-8
Small severity: metatarsal angle
9-12
Moderate severity: metatarsal angle
13-15
Large severity: metatarsal angle
16-18
Severe severity: metatarsal angle
18+
Components of hallux rigidus
Arthosis of 1st MTP joint
Seen in 30 onward
Pain c WB and sports
Tx for hallux rigidus
NSAIDs
Stiff shoes
Surgery
Grade 0 diabetic foot ulcers
Intact skin but foot at risk
Pt education, foot wear
Grade 1 diabetic foot ulcers
Superficial ulceration, not infected
External pressure relief: TCC, prefabricated pneumatic braces, walking brace
Grade 2 diabetic foot ulcers
Deep ulceration with exposed tendons, joints (superficial infection)
Surgical debridement and wound care
Grade 3 diabetic foot ulcers
Deep ulceration with exposed bone with deep infection
Surgical debridement, abx, wound care
Grade 4 diabetic foot ulcers
Partial gangrene
Vascular evaluation, amputation
Grade 5 diabetic foot ulcers
Complete gangrene
Amputation
Causes of Charcot foot
Uncontrolled DM
Pathology of Charcot foot
DM leads to neuropathy and poor circulation leads to changes in bone and unfelt micro trauma leads to deformed foot (no arch)
Eichenholtz stage 1
Development- fragmentation
Eichenholtz stage 1- clinical
Erythema
Warmth
Swelling
Eichenholtz stage 1- radiography
Bony debris
Fragmentation
Subluxation
Dislocation
Eichenholtz stage 2
Coalescence
Eichenholtz stage 2- clinical
Decreased erythema
Warmth
Swelling
Eichenholtz stage 2- radiography
Absorption debris
New bone
Coalescence/sclerosis
Eichenholtz stage 3
Consolidation
Eichenholtz stage 3- clinical
Resolution of edema
Residual deformity
Eichenholtz stage 3- radiography
Remodeling, rounding of bone
Decreased sclerosis
Components of plantar fasciitis
Heel pain MC Stretching plantar fascia c dorsiflexion (increasing pain) Worst first thing in AM Insidious Worse with walking, better with rest
Tx for plantar fasciitis
Take 6-12 months to resolve NSAIDs PT/stretching (+ Achilles) Night splint Heel pad Cast Injection (don't inject fat pad- will cause atrophy) Surgery (rare)
Components of Achilles tendonitis
Pain in posterior heel Connects calf to heel bone Largest tendon in body Inflammation of tendon Insertion or non-insertional Worse at first step Worse with activities/tight calf muscles
How does one r/o Achilles tendon rupture?
Thompson test
Calf squeeze leads to movement- nl
No movement leads to a positive Thompson test
Tx for Achilles tendonitis
NSAIDs PT Stretching Activity modification Surgery
Components of Morton’s neuroma
Plantar interdigital neuroma Fibrosis of common digital nerve Secondary to nerve irritation MC btwn 3rd and 4th metatarsal heads (3rd web space) F>M
Hx and physical of Morton’s neuroma
Plantar pain in forefoot between metatarsals Pos squeeze test Numbness/burning of toes "Walking on a marble" Aggravated by tight shoes/heels
Tx for Morton’s neuroma
Shoe modification
Metatarsal pads
Injection
Surgical excision
Components of tarsal tunnel syndrome
Pain
Paresthesia/sensation
Pos Tinels
EMG/MRI
Tx for tarsal tunnel syndrome
NSAIDs
Injections/aspiriaton
Immobilization
Surgery
What is the most common ligament that is sprained in the ankle?
ATFL
Hx components of ankle sprain
Lateral > medial Inversion type injury "Pop" Swelling Pain Difficulty WB
PE components of ankle sprain
Tenderness over ligaments
Anterior drawer of ankle test
Squeeze test
Squeeze test for ankle sprain
Used to determine it’s not a high ankle sprain
Squeeze 1/2way up calf
How do you determine whether it’s an ankle sprain or an ankle tear?
Test the anterior drawer of the ankle for ATF
What are the Ottawa ankle rules for ankle sprains?
Pain over malleolus AND
Inability to bear weight
Pain at base of 5th
Tenderness at navicular
Grade I ankle sprain
Mild stretching of a ligament with microscopic tears
No joint instability
Can WB with mild pain
Grade II ankle sprain
Incomplete tear of a ligament
Mild joint instability
WB is painful
Grade III ankle sprain
Complete tear of a ligament
Unstable
Unable to WB unassisted
Might need surgery
Components of Lis Franc fracture
Fracture/dislocation of midfoot
Easily missed!
Swelling/pain in midfoot
Pain with midfoot rotation
In a Lis Franc fracture, what will you see on X-ray?
Bigger space btwn the metatarsals affected
Components of a Jones fx
Occurs at base of 5th metatarsal Zone 2 fx High incidence of malunion or nonunion Blood supply is distal Pain c palpation
Tx for Jones fx
Immobilize
Non-WB for 6 wks
Surgical intervention