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122 Cards in this Set

  • Front
  • Back
In what type of bunion are orthotics useful?
Bunion with a flat-foot
Normal Intermetatarsal angle
9 or less degrees
Normal Hallux Valgus angle
Less than 15 degrees
Normal Distal metatarsal articular angle
Less than 15 degrees; angle between articular surface and line perpendicular to shaft
Distal metatarsal articular angle in congruent bunions are > or < 15 degrees?
Typically >15 degrees
Congruent bunion with high distal metatarsal articular angle osteotomy?
biplanar Chevron
Aitken osteotomy for what
Hallux valgus interphalangeus
Osteotomy for large inter-metatarsal angle (>15 deg)
Proximal osteotomy
Hypermobile first MT-cuneiform joint and bunion
Do first MT-cuneiform joint arthrodesis (called Lapidus)
What is Lapidus procedure
Fusion first MT-cuneiform joint
Degenerative bunion treatment
fusion MTP joint- no implant arthroplasty or Keller resection arthroplasty; position in 15-20 degrees extension
Keller resection arthroplasty problem
transfer metatarsalgia; cock up deformity;
Low intermetatarsal angle and high hallux valgus angle- procedure to do?
Distal (Chevron plus lateral release)
If patient has hallux varus complication- what to do surgically?
tendon transfer to lateral ligamentous area.
Hallux rigidus: treatment
mild arthritis w/ preserved joint space = non-operative (Morton’s splint); osteophytes and mild joint space narrowing = cheilectomy; osteophytes with severe joint space narrowing = MTP fusion
How much cheilectomy can be performed in hallux rigidus?
up to 30% of articular surface
Describe Hammertoe
Extension MTP, Flexion PIP, Extension DIP
Describe clawtoe
Extension MTP, Flexion PIP, Flexion DIP
Describe Mallet toe
Flexion DIP (no problem with MTP or PIP)
Weil osteotomy
2nd metatarsal shortening osteotomy; Index minus forefoot (second metatarsal too long so get transfer metatarsalgia);
Diagnosis of sesamoid disorders
MRI; bone scan non-specific
Treatment of fracture of sesamoid
cast 6 weeks NWB; these are at high risk of nonunion.
Complication of lateral sesamoidectomy
Hallux Varus (avoid with repair of flexor hallucis brevis); also lateral plantar nerve is at risk
Morton’s neuroma
between 2nd and 3rd metatarsals “patient feels like they’re walking on marble”
Recurrent resection Morton’s Neuroma
Long plantar inter-metatarsal approach proximal of MT heads
Issue with proximal osteotomy 5th MT for bunionette?
High risk of non-union; if high inter-metatarsal angle, do mid-shaft osteotomy
What kind of screw for Jones fracture?
SOLID (non-canulated), biggest you can fit down 5th MT canal
Indications for ORIF Jones Fx
cavus foot; re-fracture; non-union; high level athlete
Where are strongest ligaments in midfoot
Plantar: Transverse, oblique, and longitudinal (Strongest is 2nd oblique ligament)
Where is LisFranc ligament?
plantar from medial cuneiform to 2nd MT base
Midfoot arthritis orthotic
soft ‘plastizote’ insert that can accomodate their rigid deformity; sole of shoe may be stiff
Accessory Navicular
usually shoe irritation issues; Type 1-3 based on size and symptomatology; get external oblique x-ray; Tx: modified shoe; excise and advance tib post if refractory
Navicular stress fracture
central 1/3 is vascular watershed; Tx: either NWB w/ cast if undisplaced or cannulated screws
Appropriate placement of screws for navicular stress fracture
place screws dorso-lateral to plantar-medial, two 4.0 mm cannulated screws
Exam test for adolescent with painful flatfoot
assess for stability by toe raise- if foot doesn’t correct into varus, suspect coalition
Best x-ray for seeing medial facet talo-calcaneal coalition?
Harris axial view
Treatment tarsal coalition
Symptomatic and < 14 years: resection and interposition grafting and wax; if older patient and >50% total articular surface area, then fuse
Tarsal tunnel syndrome
Entrapment of posterior tibial nerve; borders: medial maleolus, sustentaculum tali; covered by flexor retinaculum in this area; burning behind medial mal; + tinel’s sign
Adult acquired flatfoot
posterior tendon insufficiency and failure of Spring Ligament (joins calcaneus to navicular (sling holding up talus)
Importance of spring ligament
Even with insufficient tin post tendon, no flatfoot until spring ligament stretches out (sling under talus; runs from calcaneus to navicular)
Orthotic for flexible flatfoot
early: medial heel and sole wedge; late: UCBL which cups the heel and brings heel out of valgus
Stage II tib post insufficiency
flexible flat-foot; cannot do single-leg heel rise; Tx: tendon and bony work = FDL to tin post transfer and medial displacement calcaneal osteotomy (if medial pain only) Add lateral column lengthening if lateral pain
Stage III tib post insufficiency
rigid flatfoot not passively correctible; requiring triple arthrodesis
State I tib post insufficiency
tendonitis; Tx: physical therapy; tenosynovectomy only if no deformity
Tib post insufficiency and heel-cord tightness
most of tib post patients have gastrocnemius tightness and corrective surgeries should be combined with Strayer Gastroc recession
Cavus foot: deformity
Varus hindfoot, varus midfoot, pronated forefoot
Coleman block test
in cavo-varus foot; trying to determine if varus hindfoot is due to plantar-flexed first ray; unload plantarflexed 1st MT and see if varus deformity corrects; if this is true, you have “forefoot driven cavus deformity”
Treatment for “forefoot driven cavus deformity”:
first metatarsal extension osteotomy with plantar fascial release; This is for correctable hindfoot on coleman block test; also can transfer peroneus longus to brevis to decrease flexion force on 1st metatarsal
If no correction of hindfoot varus on coleman block test?
must combine extension osteotomy 1st metatarsal with valgus osteotomy of calcaneus
Plantar Fasciitis
non-op treatment; Night splints 1st line of treatment; Operative Tx: release 1/4 of medial slip of plantar fascia; more creates flatfoot
Physical exam for calcaneal stress fracture:
Heel squeeze from medial and lateral; this diagnosis is in dDx of plantar fasciitis
Achilles tendon watershed area
2-6mm proximal of calcaneal insertion; prone to degenerative tendinopathy and secondary rupture
Techniques to fill void if segmental loss achilles
FHL (required if you debride more than 50% breadth achilles); V-Y advancement; gastroc turndown
Talus OCD: Tx
drill first; OATS only if drilling fails
Ankle arthrodesis position
5-10 degrees ER; 0-5 deg dorsiflexion; 5-10 deg valgus
Semmes-Weinstein monofilament size & importance
5.07; protective sensation
Diabetic ulcers of which part of the foot have the worst prognosis?
heel- most difficult to heal
Treatment of non-infected recalcitrant ulcer
total contact cast
Achilles lengthening and forefoot ulcer
if patient often develops forefoot ulcers, heel cord lengthening can help by taking pressure off forefoot
Length of immobilization for diabetics with ankle fracture?
2-3 x normal (12+ months)
When does braking reaction time return after ORIF ankle fracture?
9 weeks
In what type of bunion are orthotics useful?
Bunion with a flat-foot
Normal Intermetatarsal angle
9 or less degrees
Normal Hallux Valgus angle
Less than 15 degrees
Normal Distal metatarsal articular angle
Less than 15 degrees; angle between articular surface and line perpendicular to shaft
Distal metatarsal articular angle in congruent bunions are > or < 15 degrees?
Typically >15 degrees
Congruent bunion with high distal metatarsal articular angle osteotomy?
biplanar Chevron
Aitken osteotomy for what
Hallux valgus interphalangeus
Osteotomy for large inter-metatarsal angle (>15 deg)
Proximal osteotomy
Hypermobile first MT-cuneiform joint and bunion
Do first MT-cuneiform joint arthrodesis (called Lapidus)
What is Lapidus procedure
Fusion first MT-cuneiform joint
Degenerative bunion treatment
fusion MTP joint- no implant arthroplasty or Keller resection arthroplasty; position in 15-20 degrees extension
Keller resection arthroplasty problem
transfer metatarsalgia; cock up deformity;
Low intermetatarsal angle and high hallux valgus angle- procedure to do?
Distal (Chevron plus lateral release)
If patient has hallux varus complication- what to do surgically?
tendon transfer to lateral ligamentous area.
Hallux rigidus: treatment
mild arthritis w/ preserved joint space = non-operative (Morton’s splint); osteophytes and mild joint space narrowing = cheilectomy; osteophytes with severe joint space narrowing = MTP fusion
How much cheilectomy can be performed in hallux rigidus?
up to 30% of articular surface
Describe Hammertoe
Extension MTP, Flexion PIP, Extension DIP
Describe clawtoe
Extension MTP, Flexion PIP, Flexion DIP
Describe Mallet toe
Flexion DIP (no problem with MTP or PIP)
Weil osteotomy
2nd metatarsal shortening osteotomy; Index minus forefoot (second metatarsal too long so get transfer metatarsalgia);
Diagnosis of sesamoid disorders
MRI; bone scan non-specific
Treatment of fracture of sesamoid
cast 6 weeks NWB; these are at high risk of nonunion.
Complication of lateral sesamoidectomy
Hallux Varus (avoid with repair of flexor hallucis brevis); also lateral plantar nerve is at risk
Morton’s neuroma
between 2nd and 3rd metatarsals “patient feels like they’re walking on marble”
Recurrent resection Morton’s Neuroma
Long plantar inter-metatarsal approach proximal of MT heads
Issue with proximal osteotomy 5th MT for bunionette?
High risk of non-union; if high inter-metatarsal angle, do mid-shaft osteotomy
What kind of screw for Jones fracture?
SOLID (non-canulated), biggest you can fit down 5th MT canal
Indications for ORIF Jones Fx
cavus foot; re-fracture; non-union; high level athlete
Where are strongest ligaments in midfoot
Plantar: Transverse, oblique, and longitudinal (Strongest is 2nd oblique ligament)
Where is LisFranc ligament?
plantar from medial cuneiform to 2nd MT base
Midfoot arthritis orthotic
soft ‘plastizote’ insert that can accomodate their rigid deformity; sole of shoe may be stiff
Accessory Navicular
usually shoe irritation issues; Type 1-3 based on size and symptomatology; get external oblique x-ray; Tx: modified shoe; excise and advance tib post if refractory
Navicular stress fracture
central 1/3 is vascular watershed; Tx: either NWB w/ cast if undisplaced or cannulated screws
Appropriate placement of screws for navicular stress fracture
place screws dorso-lateral to plantar-medial, two 4.0 mm cannulated screws
Exam test for adolescent with painful flatfoot
assess for stability by toe raise- if foot doesn’t correct into varus, suspect coalition
Best x-ray for seeing medial facet talo-calcaneal coalition?
Harris axial view
Treatment tarsal coalition
Symptomatic and < 14 years: resection and interposition grafting and wax; if older patient and >50% total articular surface area, then fuse
Tarsal tunnel syndrome
Entrapment of posterior tibial nerve; borders: medial maleolus, sustentaculum tali; covered by flexor retinaculum in this area; burning behind medial mal; + tinel’s sign
Adult acquired flatfoot
posterior tendon insufficiency and failure of Spring Ligament (joins calcaneus to navicular (sling holding up talus)
Importance of spring ligament
Even with insufficient tin post tendon, no flatfoot until spring ligament stretches out (sling under talus; runs from calcaneus to navicular)
Orthotic for flexible flatfoot
early: medial heel and sole wedge; late: UCBL which cups the heel and brings heel out of valgus
Stage II tib post insufficiency
flexible flat-foot; cannot do single-leg heel rise; Tx: tendon and bony work = FDL to tin post transfer and medial displacement calcaneal osteotomy (if medial pain only) Add lateral column lengthening if lateral pain
Stage III tib post insufficiency
rigid flatfoot not passively correctible; requiring triple arthrodesis
State I tib post insufficiency
tendonitis; Tx: physical therapy; tenosynovectomy only if no deformity
Tib post insufficiency and heel-cord tightness
most of tib post patients have gastrocnemius tightness and corrective surgeries should be combined with Strayer Gastroc recession
Cavus foot: deformity
Varus hindfoot, varus midfoot, pronated forefoot
Coleman block test
in cavo-varus foot; trying to determine if varus hindfoot is due to plantar-flexed first ray; unload plantarflexed 1st MT and see if varus deformity corrects; if this is true, you have “forefoot driven cavus deformity”
Treatment for “forefoot driven cavus deformity”:
first metatarsal extension osteotomy with plantar fascial release; This is for correctable hindfoot on coleman block test; also can transfer peroneus longus to brevis to decrease flexion force on 1st metatarsal
If no correction of hindfoot varus on coleman block test?
must combine extension osteotomy 1st metatarsal with valgus osteotomy of calcaneus
Plantar Fasciitis
non-op treatment; Night splints 1st line of treatment; Operative Tx: release 1/4 of medial slip of plantar fascia; more creates flatfoot
Physical exam for calcaneal stress fracture:
Heel squeeze from medial and lateral; this diagnosis is in dDx of plantar fasciitis
Achilles tendon watershed area
2-6mm proximal of calcaneal insertion; prone to degenerative tendinopathy and secondary rupture
Techniques to fill void if segmental loss achilles
FHL (required if you debride more than 50% breadth achilles); V-Y advancement; gastroc turndown
Talus OCD: Tx
drill first; OATS only if drilling fails
Ankle arthrodesis position
5-10 degrees ER; 0-5 deg dorsiflexion; 5-10 deg valgus
Semmes-Weinstein monofilament size & importance
5.07; protective sensation
Diabetic ulcers of which part of the foot have the worst prognosis?
heel- most difficult to heal
Treatment of non-infected recalcitrant ulcer
total contact cast
Achilles lengthening and forefoot ulcer
if patient often develops forefoot ulcers, heel cord lengthening can help by taking pressure off forefoot
Length of immobilization for diabetics with ankle fracture?
2-3 x normal (12+ months)
When does braking reaction time return after ORIF ankle fracture?
9 weeks