Foot and Ankle Flashcards
What is Turf Toe?
- Sprain to First MTP joint
- Usually involves hyperextension on artifical turf while pushing off
What are the Major Anatomic Divisions of the Foot?
- Rear Foot- Talus and Calcaneus
- Mid Foot- Navicular, Cuboid, and Cuneiforms
- Fore Foot- Metatarsals and Phalanges
How much ROM is required for normal gait?
- 6-10 deg Dorsiflexion
- 20-30 degrees of Plantar Flexion
- 4-6 degrees of inversion/eversion
What is the Windlass Mechanism?
- Supination and creation of a medial longitudinal arch due to extension of the toes, specifically the Hallux
What are the common arches of the foot?
- Medial Longitudinal Arch
- Lateral Longitudinal Arch
- Proximal Transverse Arch
- Distal Transverse Arch
What is the ideal position for ankle arthrodesis?
- Neutral Dorsiflexion
- Slight Valgus
- External Rotation of approx 5-10 deg
What is Lisfrancs Ligament?
- Ligament spanning the Medial Cuneiform and the base of the 2nd Metatarsal
What is the role of the spring ligament?
- Primary Static Stabilizer of the Medial Longitudinal Arch
What is the difference between Choparts and Lisfranc Joints
- Choparts- Mid Tarsal- Talonavicular and Calcaneocuboid
- Lisfranc- TarsoMetatarsal
What is the most common way of treating Clubfoot?
- Ponseti Method of serial manipulation and casting
What is Kohlers Disease?
- Avascular necrosis of the navicular bone
- Occurs in young children typically age 4-7
- Midfoot Pain, TTP Navicular, Limp
- Immobilization with short leg walking cast
What is Iselins Disease?
- Traction apophysitis of the tuberosity of the fifth metatarsal
- Seen in Physically active children aged 8-13
- Pain on Lateral Foot, TTP base 5th Met
- RICE, Activity Modification
What is Severs Disease?
- Calcaneal Apophysitis in the skeletally immature athlete
- TTP Calcaneal Apophysis
- RICE, NSAIDs and Activity Modification
What is Metatarsus Adductus?
- Common Pediatric Foot Disorder
- Forefoot Varus and Adduction, In Toeing in Gait
- Most resolve with shoe modification and serial casting, few need surgery (Midfoot Osteotomy)
What is the function of the Dorsal and Palmar Interossei of the foot?
- DAB, PAD
- Dorsal are ABductors
- Palmar are ADductors
What conditions might be indicated by palpation of the Achilles?
- Pain in different parts with palpation indicative of different pathology
- Musculotendinous Junction- Muscle strain
- Mid Substance of Tendon- Tendonosis
- Calcaneal Insertion- Retrocalcaneal bursitis
What is the Thompson Test?
- Calf Squeeze test to check for Achilles Tendon Rupture
What is typical protocol after Achilles Rupture Repair?
- Immobilization in cast in slight PF x 6-8 weeks
- WB at discretion of Surgeon
- Progress to Heel Lift in shoe
- DF Stretching avoided x 4 months
- Progressive Strengthening of PF and return to run x 7-9 months
Describe the Accelerated plan for Achilles Tendon Repair
- Performed when patient receives surgery with stronger sutures
- Patient Immobilized x 72 hours, early AROM begun, Post Splint x 2 weeks
- Return to pre injury level at 4 months
What is Tarsal Tunnel Syndrome?
- Entrapment of the Posterior Tibial Nerve as it passes under the retinaculum
- Pain and parasthesias in plantar foot are common symptoms
Describe the Clinical Presentation of Posterior Tibial Tendon Dysfunction?
- Pain and swelling of medial ankle and onset of flatfoot deformity
What is common cause of Peroneal Tendon Subluxation?
- Sudden, Forceful passive dorsiflexion of the everted foot with sudden, strong reflex contraction of the peroneal muscles
- Skiing Injury, Soccer
What are the Ottawa Ankle Rules?
Radiographs warranted if:
- Bone Tenderness to Post 6 cm of distal lateral or medial malleoli
- Unable to walk 4 steps immediately after injury
- TTP Navicular or Base of 5th Metatarsal
What is a Syndesmotic Ankle Sprain?
- High Ankle Sprain
- MOI is External Rotation of Tibia on Planted Foot
- Squeeze Test for diagnosis
- Rule out fracture of the Proximal Fibula
- Possible Referral to Ortho
What is the Sinus Tarsi?
- Funnel Shaped opening in rear foot between the talus and calcaneus
- Wider AnteroLaterally and narrow PosteroMedially
- Main Blood Supply to Talus and TaloCalcaneal Ligament pass through it as well as nerve endings and fatty tissue
What is Sinus Tarsi Syndrome?
- Tenderness over Sinus Tarsi (Lateral Hindfoot)
- Often Associated with recurrent lateral ankle sprains. Sprain of Talocalcaneal ligament and inflammation of Tarsal Sinus
What is Tarsal Coalition?
- A fibrous or Osseous bar that spans two or more of the tarsal bones
- Usually in early teens
- Pain and Loss of Rearfoot motion and rigid pes planus
- Treat with Rest, Mobilization and in extreme cases, surgical release or fusion
What are Hallux Limitus and Hallux Rigidus?
- Decreased Extension of the First MTP of varying degrees.
- Limitus then Rigidus
- Treatment focuses on Joint Mobilization
What is a Hammertoe?
- MTP Extension and PIP Flexion
- Callous on dorsum of PIP
- Treatment focuses on Joint Mobiliation, Flexibility and wearing of a deeper shoe
What is Claw Toe?
- MTP Extension, PIP And DIP Flexion
- Extrinsics Stronger than Intrinsics
- Stretching is main treatment
What is Sesamoiditis?
- Inflammation and pain in sesamoids of Foot
- Pain under First MTP, Pain in ambulation, Pain with Extension of great toe, swelling at head of first Metatarsal Head
What is typical treatment for Forefoot Pain?
- Metatarsal Pad
- Shoewear Changes
- Improve MTP Flexion and IP Extension with Intrinsic Strengthening
- Strengthening of Arch
What is most common site of neuroma in the foot?
- In the Web Space between the third and fourth metatarsals
What fractures of the foot are at risk for AVN?
- Talus and Calcaneus
What is a Jones Fracture?
- Fracture of Fifth Metatarsal Base
- Non Union Common
- 4-6 weeks NWB Cast and Protected WB in boot until full union
Describe the Zones of the Proximal 5th Metatarsal and the types of fractures that occur there
- Zone 1- Peroneus Brevis Insertion, Proximal, Site of Avulsion Fracture, WBAT in Hard Sole Shoe
- Zone 2- Site of Jones Fracture, less proximal, NWB x 4-8 weeks
- Zone 3- Site of Stress Fracture, most distal of the three zones, NWB x 4-8 weeks
What is Friebergs Disease?
- anterior metatarsalgia, involves head of second metatarsal;
- occurs during the growth spurt at puberty - most are female
- caused by avascular necrosis of the metatarsal head;
- from repetitive stress with microfractures at the junction of the metaphysis and the growth plate
What are the Rear Foot Postures typically associated with Pes Planus and Cavus?
- Pes Planus- Rear Foot Valgus
- Pes Cavus- Rear Foot Varus
A Spring Ligament Injury is typically associated with what type of foot deformity?
- Flat Foot
Where is the Majority of the Distal attachment of the Tibialis Posterior?
- Navicular and Medial Cuneiform
- Supports the Medial Longitudinal Arch
What is the Functional Importance of Hind Foot Inversion/ Rear Foot Varus?
- To allow the foot to act as a rigid lever
- With Flexible Flat Foot (Midfoot Instability), becomes a “Flexible” lever
Describe the Amounts of Plantar Flexion and Dorsiflexion during phases of Gait
- Initial Contact- Slight Dorsiflexion
- Early and Mid Stance- Moderate Dorsiflexion
- Late Stance- Rapid Transition into PlantarFlexion for Toe Off (Pre Swing)
What are Some Special Tests for Pes Cavus?
- Coleman Block Test (Flexible Flat Foot)
- The “Peek a Boo” Sign
What is a low arch foot type in one foot but not the other associated with?
- Acquired Flat Foot Deformity
- Usually a result of Posterior Tibial Tendon Dysfunction
What do the Anterior Drawer of the Ankle and the Talar Tilt Test for?
- Ant Drawer- ATFL Injury
- Talar Tilt- ATFL and/or CFL
What are Some Special Tests for Syndesmotic Injury?
- External Rotation Test
- Squeeze Test
- Cotton Test
- Fibula Transition test
What are Some Special Tests for Achilles Tendon Rupture?
- Thompson Test
- Achilles Palpation
- London Royal Hospital Test
- Arc Sign
What is a common special test for Plantar Fasciitis?
- Windlass Test
What is a common special test for Mortons Neuroma?
- Mulder Click Test
What is a common special test for Posterior Tarsal Tunnel Syndrome?
- Tinel Sign
What is a common special test for DVT?
- Homan Sign
Describe the progression of arch height/ foot posture during development?
- Infants born with flat foot
- Develops to a normal foot print around age 12-13
Give a Description and Diagnostic Criteria for Hammer Toe
- IP Flexion Deformity
- Only one or Two toes involved
- Typically does not include MTP joint Extension
Give a Description and Diagnostic Criteria for Claw Toe
- Flexion of IP Joints
- Extension of MTP
- Caused by Neuromuscular Disorder
- Typically involves all toes
What are the 3 sites of painful corns associated with Claw Toe?
- Dorsum of PIP
- Dorsum of MTP
- Plantar to Nail Bed
Give a Description and Diagnostic Criteria for Mallet Toe
- Abnormal Flexion of DIP
- Can occur in isolation or secondary to Hammer Toe
- Most common at Second Toe
- Often Develops a painful corn plantar to nail bed
- Can be Fixed or Flexible
Give a Description and Diagnostic Criteria for High Ankle Sprain
- MOI is Dorsiflexion of ankle and ER of the Tibia on Planted Foot
- Pain at Distal Tib Fib Joint
- Return to play is longer than lateral ankle sprains
- Usually a few weeks to 2 months
- Can result is Proximal Fibula Fractures (maisonneuve fracture)
Give a Description and Diagnostic Criteria for Functional Ankle Instability
- Chronic Instability with absence of Objective Joint Instability
- Muscle Weakness, Poor Muscle Recruitment Patterns
- Poor Single Leg Stance and Dynamic Balance
Give a Description and Diagnostic Criteria for Mechanical Ankle Instability
- Evidence of Ankle Laxity
- Treatment same as Functional Ankle Instability (balance, strength, etc)
- If rehab fails, Surgery indicated
Give a Description and Diagnostic Criteria for Anterior Impingement Syndrome
- Repeated Microtrauma at anterolateral ankle result in scar tissue formation
- Impingment of this scar tissue
- Anterior Joint pain with Forced Dorsiflexion, Squatting, Stair Climbing, and increased stride length
- Progression of treatment: Manual Therapy, Heel LIft, Surgery
Give a Description and Diagnostic Criteria for Loose Bodies and Osteochondral Lesions
- Vague Nonspecific nature of clinical presentation
- Low Grade Persistent pain after sprain
- Deep Ache with Weight Bearing
- Swelling, Clicking, Catching, Locking, Giving Way
Give a Description and Diagnostic Criteria for Ankle Osteoarthritis
- Fairly Rare
- History of Ankle Fracture as Predisposing factor
Give a Description and Diagnostic Criteria for Plantar Fasciitis
- Most commonly affected are overweight, bilateral limitations in Dorsiflexion, have and occupation that requires prolonged standing
Give a Description and Diagnostic Criteria for Tarsal Coalition
- Congenital Fibrous, Cartilaginous, or osseous fusion of two or more bones in midfoot or hindfoot
- Most common at Calcaneonavicular (CNC) and Talocalcaneal (TCC)
- Occurs in Adolescents 12-16
- Family History, Repeated Ankle Sprains, rear foot pain worse with activity and relieved with rest
- TTP over Sinus Tarsi
- Diagnosed with X Ray and Surgery Common
Give a Description and Diagnostic Criteria for Lisfranc Injuries
- Longitudinal Force applied to Plantar Flexed ankle
- Low Energy (sports) or High Energy (MVA)
- Deformity, Swelling, Pain on Medial Foot
- Instability Diagnosed with Radiographs
- If Instability, Surgery
- If Stable, Casting or Immobilization
Give a Description and Diagnostic Criteria for Sever Disease
- Calcaneal Apophysitis
- Occurs mostly in boys during growth spurt between the ages of 6-8 when they start higher impact sports like soccer and running
- Resolves in 2 weeks to 2 months with activity modification, heel lift, shoe inserts, stretching
Give a Description and Diagnostic Criteria for Kohler Disease
- Uncommon Pathology that results in Osteochondrosis of the Navicular
- Caused by Disturbance in Dorsalis Pedis or Medial Plantar Arteries
- Presents in children ages 2-10
- Resolves in approx 8 months with conservative treatment
Give a Description and Diagnostic Criteria for Hallux Rigidus
- Caused by Degenerative Arthritis and impingement of Osteophytes
- Limited First MTP Extension
- Treatments include Joint Mobs, In Shoe Orthotics that limit joint motion or Cheilectomy (removal of bone spurs and osteophytes)
Give a Description and Diagnostic Criteria for Metatarsalgia
- Pain in Forefoot with stress over the Metatarsal Head
- Key Indicators are location of pain and skin integrity (keratosis and calluses)
- Metatarsal Pads
Give a Description and Diagnostic Criteria for Morton Neuroma
- Perineural Fibrosis and Nerve Degeneration of Common Digital Nerve
- Most common between 3rd and 4th Metatarsals
- Pain is sharp and burning and complaints of parasthesias common
- Painful Click with Mulder Sign
- Unloading of Area, Soft Soled Shoes, Injection
Give a Description and Diagnostic Criteria for Sesamoiditis
- Pain, Tenderness, Swelling under affected Sesamoid Bones
- Aggravated with movement of Great Toe
- Increased with Weight Bearing
- Treat with Decreased Weight Bearing, Non Weight Bearing in Tow Spica Cast depending on severity
- Surgery is Sesamoidectomy
What are some variables thought to contribute to increased stress on sesamoids?
- Pes Cavus Foot
- Plantar Flexed First Ray
- Ankle Equines
Give a Description and Diagnostic Criteria for Achilles Tendon Rupture
- Sudden Pain, Inability to Bear Weight, Weakness
- Palpable Gap and Increased Passive Dorsfilexion on exam
- (+) Thompson test
Give a Description and Diagnostic Criteria for Posterior Tibial Tendon Dysfunction
- Hallmark is weakness of Subtalar Inversion and Forefoot Adduction
- Typically associated with flat foot, overweight females
- Treat with custom brace that controls hindfoot eversion supports medial longitudinal arch or orthotics
Give a Description and Diagnostic Criteria for Fibulars Tendon Dysfunction or Subluxation
- Pain along Posterior lateral foot
- Swelling, Clicking, Visual Subluxation
- Special Test is Resisted Ankle Dorsiflexion and Subtalar Eversion
- Surgery
What is the Time frame for immobilization for typical ankle and foot fractures?
- 6-8 weeks
Describe the Weber Classification Scheme for Ankle Fractures
- Type A- Lateral Malleolar Injury Distal to Tibial Plafond
- Type B- Level of Tibial Plafond
- Type C- Proximal to Tibial Plafond
What is the Typical MOI for Calcaneal Fractures?
- Fall from Significant Height or MVA
- Should check Lumbar Spine for Compression Fractures if Calcanear Fracture found