NCAPA – North Carolina Academy of Physician Assistants · • AKA “shin splints” •...
Transcript of NCAPA – North Carolina Academy of Physician Assistants · • AKA “shin splints” •...
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Ankle Ligaments • Lateral ligaments:
oAnterior talofibular: Most common injured, inversion/plantar flexion.
oCalcaneofibular: Deep to peroneal tendon sheath.
oPosterior talofibular: smallest major ligament.
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Ankle Ligaments • Medial ligaments:
oDeltoid ligament: Largest ankle ligament, broad and fanlike.
o Prevents abduction-eversion of the ankle and subtalar joint.
• Tibiofibular complex:
oAnterior & Posterior tibiofibular ligaments
o Syndesmosis
o “high ankle sprain”
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Ankle: Sprains
• Tests
oAnterior Drawer Test (ATFL)
o Talar tilt (CF & ATFL)
• Prepubescent ankle injuries
o increased risk of growth plate injury
• ligaments stronger than growing bone
o distal fibular physis
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Grading of Ankle Sprains
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Other Ankle Provocative Tests
• Valgus (eversion) stress test: for Deltoid lig.
oMedial ankle sprain
• Squeeze Test: for syndesmosis injury.
o High ankle sprain
• Thompson’s Test: Achilles tendon continuity.
o Squeeze calf w/ patient prone, if no
plantar flexion…Achilles rupture
• “someone kicked me in the heel”
• Kobe Bryant
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Ottawa Imaging Rules • Guidelines on when to
order ankle/foot x-rays
o In summary • Inability to bear
weight due to pain
• Tenderness over bony prominence/landmark of ankle/foot
o If medial malleous injury, order knee films
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Maissoneuve Fracture • Occurs from excessive external rotation
force to ankle causing spreading of
syndesmosis
• If medial ankle sprain, ALWAYS palpate
proximal fibula to r/o tenderness
• Tibia/Fibula complex is a ring like structure
o If a fracture in one place, look for 2nd fracture site
• Refer
o ORIF
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Maissoneuve Fracture pattern
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Weber Classification
• Classification for
lateral malleolar
fractures o Different levels of stability
with each type
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Treatment
• Weber A
o stable fracture
o Short leg cast 4 weeks,
weight bearing OK
o Change to boot
• Radiographic
healing
• Clinically improved
o Refer if no evidence of
healing after 8 weeks
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Treatment
• Weber B and C
o Refer for surgical
fixation
o Also bimalleolar or
trimalleolar fx
o Check medial
ankle for mortise
widening
indicating
syndesmosis injury
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Medial Tibial Stress Syndrome
• AKA “shin splints”
• Tenderness and pain along medial border of mid/distal tibia
• Long distance runners, deconditioned short distance runners
o May progress to stress reaction and eventually stress fracture
o Pain/throbbing at rest – suspect stress fracture
• MRI or bone scan to confirm
• Treatment o Rest, ice, shoe modification, orthotics,
non weight bearing if stress fx
o Prophylactic intramedullary nailing in severe chronic cases
• athletes
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Foot X-rays
• AP, lateral, oblique
• If questionable
abnormality, get
contralateral films
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Proximal 5th Metatarsal Fractures • Several types
o Avulsion
• Dancer’s
o Jones
o Stress
• May accompany
ankle sprain
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Jones fracture
• Plantar flexion inversion
injury
• Zone of 5th MT base with
least rich blood supply
o May develop non union
• Initial treatment
o WBAT in hard shoe
o Serial x-rays to eval
healing
o may need ORIF with
possible bone grafting
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Great toe sprain • “turf toe”
• Hyperextension/hyperflexion
injury to 1st MTP joint
o Treatment
• Rigid shoe insert
• Ice, NSAIDs
• Can take many months
to resolve
• May require surgery if
ligament completely
disrupted
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Lisfranc Injury
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Lisfranc Injury • Named after Napoleon’s surgeon, Lisfranc
o Foot of soldiers caught in stirrup, caused wrenching of
foot, eventually a likely amputation
• Injury to the tarsometatarsal joints, primarily the 1st and
2nd metatarsals and the connection to the cunieforms
• Resulting from blow to posterior foot with toes in
hyperextension (as if standing on toes) most commonly
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Lisfranc Injury
• Treatment is surgical (ORIF)
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Causes of heel pain
• Children
o Sever’s disease (calcaneal apophysitis)
• Adolescent age 9-11
• Treat with rest/activity modification, heel lift, heel cord stretching
• No long term sequelae
• Adults
o Achilles tendinitis
o Heel contusion
o Plantar fasciitis
o Haglund’s deformity
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HAGLUND’S DEFORMITY • AKA “pump bump”
• Bone spur posterior calcaneus at
Achilles insertion,
• Chronic inflammation/irritation to
Achilles
• Treatment:
o Non op: heel lift, PT, stretching
o Operative: excision
• Involves
detaching/reattaching
Achilles after removal of spur
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PLANTAR FASCIITIS • Pain plantar aspect of calcaneus
• Insidious onset, stabbing pain with first few steps of the day
• May last several months
• Usually resolves spontaneously
o Interventions help speed recovery
• excessive pull at origin of plantar fascia on calcaneus; heel spur results, not the cause
• RX: orthotics, shoe with higher heel, ice, heel cord stretch, NSAID
o Surgical release last resort
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Infectious Diseases
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Osteomyelitis
• Acute or chronic
• Infection of bone or bone marrow
• Suppurative (pus)
• Non-suppurative (sclerotic)
• Staph aureus
• MRI to evaluate for osteo
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Septic arthritis • Usually bacterial
o Staph
o Strep
o N gonorrhea (young
adult)
o H flu (children)
• Also:
o Tb
o B burgdorferi (Lyme)
o E. coli (immune
compromised)
Common finding…PAINFUL
PASSIVE RANGE OF MOTION
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Septic Arthritis • Joint aspiration
o Cell count
• >50k WBCs, 75% PMN
• Infection vs inflammatory process
o Culture
o Gram stain
o Crystals
Bloodwork:
CBC
BMP
ESR
CRP
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Case Study • 44M, 4 weeks of left
knee swelling and pain
• No major medical
problems
• No injury, crossfitter,
went skiing w/ sore
knee, got more swollen
• Pain with weight
bearing, needs
crutches
• ER visit 2 weeks prior,
likely meniscus tear,
f/u w/ ortho
• Symptoms worsened
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Case Study • Exam:
• Knee w/ 3+ effusion,
red, hot to touch
• ROM -10 – 50 w/ pain
• Afebrile
• Unable to test
ligaments
Aspiraton
- 120ml cloudy fluid
- No organsims
- 15k WBCs
- No growth
CBC
- WBC 10.3
CRP 12.64
ESR 90
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Case Study • Upon further retrospective review…
o 2 weeks prior to onset of knee pain, tested and treated for chlamydia
o Treated for syphilis 1 year prior
o Following ortho visit, referral to rheumatology
• Positive ANA 1:640
REACTIVE ARTHRITIS
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Neoplastic Disorders
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Malignant bone tumors • LOOK FOR CORTICAL
DESTRUCTION-irregular edges o Constitutional symptoms –
unintended weight loss, fatigue, fever
• Osteosarcoma o Common in long bones
o Dx after uncommon injury
• Mid shaft femur fx in young pt.
• Chondrosarcoma
• Ewing’s sarcoma
• Fibrosarcoma
• Multiple myeloma o Metastatic lesions spine
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Benign bone tumors
(more common)
• Often asymptomatic,
incidental findings on
x-ray
• If symptomatic, can
be resected o Enchondroma
o Osteochondroma
o Osteoid osteoma
o Giant cell tumor
o Aneurysmal bone cyst
o Fibrous dysplasia
o Non ossifying fibroma (NOF)
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Metastatic (secondary) bone tumors
• Breast
• Lung
• Prostate
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So In Summary…. • 1. Sprains happen to ligaments, Strains happen to
muscles/tendons
• 2. DTR’s: C5-Biceps, C6 – Brachioradialis, C7 - Triceps
• 3. Impingement Syndrome involves the Supraspinatus tendon
• a. Hawkins and Neer tests
• 4. Injuries to the AC joint are Separations (cross arm test – very good indicator)…injuries to GH joint are dislocations ( apprehension, sulcus)
• 5. Bankart (labrum) and Hill Sachs (humeral head) lesions can occur during a first time shoulder dislocation and subsequent reduction
• 6. Most common fracture in the shoulder is fractured clavicle – commonly fractured between distal 1/3 and proximal 2/3
• 7. Medial epicondylitis – wrist flexors – Golfer’s Elbow
• 8. Lateral epicondylitis – wrist extensors – Tennis Elbow
• 9. DeQuervains diagnosed by Finkelstein Test (wrap thumb in palm and ulnar deviate) – tenosynovitis (inflammation of tendon sheath)
• 10. Scapholunate dissociation – x-ray reveals Letterman sign (gap)
• 11. Carpal Tunnel Syndrome – Phalen and Tinel’s tests – MEDIAN N.
• 12. Distal radius fx’s: Colles’ (FOOSH) – dorsal displacement
• Smith (fall on flexed wrist) – volar displacement
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In summary… (cont’.) • 13. Be familiar w/ Mallet finger (DIP), Boutonniere deformity (PIP)
• 14. Osteoarthritis:
• a. Herberden’s nodes – DIP (most common)
• b. Bouchard’s nodes - PIP
• 15. Spondylolysis (Scotty Dog Fx – NON DISPLACED) – fx at pars interarticularis
• 16. Spondylolisthesis (Forward slippage of one vertebrae over another)
• 17. HNP (herniated discs) commonly cause muscle weakness w/ or w/o pain
• 18. Hip avulsion fx sites: ASIS (sartorius), AIIS (rectus fem), Ischial tuberosity (hamstrings)
• 19. HIP: SCFE (pediatric) – ice cream cone……Legg Calve Perthes - AVN
• 20. Knee tests: ACL – lachman, Ant. Drawer, PCL – Sag, posterior drawer, MCL – Valgus stress, LCL – Varus stress, Meniscus - McMurray
• 21. Osgood Schlatter Disease – Tibial Tuberosity (Quadriceps insertion)
• 22. Sever’s Disease – calcaneus (Achilles tendon insertion)
• 23. Ankle tests: Drawer – ATFL, Talar Tilt – CFL, Valgus (eversion) – Deltoid
• 24. Plantar fasciitis – Stabbing heel pain first step in the morning
• 25. 5th Metatarsal Head fractures – Avulsion (**most common), Jones (most problematic), Metaphyseal Stress fx
• 26. Read over Ottawa Imaging rules (basically x-ray when bony tenderness and inability to bear weight)
• 27. Gout – Uric acid crystals – 1st MTP joint most common– very painful
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• 1. A 27 year old former swimmer presents to clinic with right shoulder pain that has increased over several months after increasing upper body strengthening workouts. She feels occasional clicking when she does certain movements and says the shoulder feels “loose”. She has 5/5 strength and a positive O’Brien’s test. What is the likely diagnosis?
• a. Rotator cuff tear
• b. Adhesive capsulitis
• c. Labral tear
• d. proximal humerus stress fracture
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• 1. A 27 year old former swimmer presents to clinic with right shoulder pain that has increased over several months after increasing upper body strengthening workouts. She feels occasional clicking when she does certain movements and says the shoulder feels “loose”. She has 5/5 strength and a positive O’Brien’s test. What is the likely diagnosis?
• a. Rotator cuff tear
• b. Adhesive capsulitis
• c. Labral tear
• d. proximal humerus stress fracture
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• 2. What is the proper treatment for a Weber B
bimalleolar ankle fracture with medial mortise
widening in a healthy 35 year old?
• a. Open reduction internal fixation (ORIF)
• b. Closed reduction, then weight bearing as
tolerated in walking boot
• c. Non weight bearing for 6 weeks, then resume
activity
• d. 50% partial weight bearing in a plaster cast
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• 2. What is the proper treatment for a Weber B
bimalleolar ankle fracture with medial mortise
widening in a healthy 35 year old?
• a. Open reduction internal fixation (ORIF)
• b. Closed reduction, then weight bearing as
tolerated in walking boot
• c. Non weight bearing for 6 weeks, then resume
activity
• d. 50% partial weight bearing in a plaster cast
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• 3. A patient presents to the emergency
department with acute onset of bilateral lower
extremity weakness, numbness in the perineal area,
and incontinence of the bowels and bladder. They
have normal vital signs and are otherwise healthy.
What is the most likely diagnosis?
• a. Herniated nucleus pulposus
• b. Cauda equina syndrome
• c. Spondylolisthesis
• d. Sacroiliitis
![Page 46: NCAPA – North Carolina Academy of Physician Assistants · • AKA “shin splints” • Tenderness and pain along medial border of mid/distal tibia ... Knee tests: ACL – lachman,](https://reader033.fdocuments.in/reader033/viewer/2022060907/60a194910debf21c36727cf3/html5/thumbnails/46.jpg)
• 3. A patient presents to the emergency
department with acute onset of bilateral lower
extremity weakness, numbness in the perineal area,
and incontinence of the bowels and bladder. They
have normal vital signs and are otherwise healthy.
What is the most likely diagnosis?
• a. Herniated nucleus pulposus
• b. Cauda equina syndrome
• c. Spondylolisthesis
• d. Sacroiliitis
![Page 47: NCAPA – North Carolina Academy of Physician Assistants · • AKA “shin splints” • Tenderness and pain along medial border of mid/distal tibia ... Knee tests: ACL – lachman,](https://reader033.fdocuments.in/reader033/viewer/2022060907/60a194910debf21c36727cf3/html5/thumbnails/47.jpg)
• 4. Which of the following statements about
conditions of the wrist and hand is inaccurate?
• a. Heberden’s nodes and Bouchard’s nodes can
both be symptoms of OA.
• b. Certain scaphoid fractures may require up to 16
weeks of casting for adequate healing.
• c. The most common type of distal radius fracture
is a Colles’ fracture.
• d. Most metacarpal shaft fractures with
malrotation can be treated non-operatively.
![Page 48: NCAPA – North Carolina Academy of Physician Assistants · • AKA “shin splints” • Tenderness and pain along medial border of mid/distal tibia ... Knee tests: ACL – lachman,](https://reader033.fdocuments.in/reader033/viewer/2022060907/60a194910debf21c36727cf3/html5/thumbnails/48.jpg)
• 4. Which of the following statements about
conditions of the wrist and hand is inaccurate?
• a. Heberden’s nodes and Bouchard’s nodes can
both be symptoms of OA.
• b. Certain scaphoid fractures may require up to 16
weeks of casting for adequate healing.
• c. The most common type of distal radius fracture
is a Colles’ fracture.
• d. Most metacarpal shaft fractures with malrotation
can be treated non-operatively.
![Page 49: NCAPA – North Carolina Academy of Physician Assistants · • AKA “shin splints” • Tenderness and pain along medial border of mid/distal tibia ... Knee tests: ACL – lachman,](https://reader033.fdocuments.in/reader033/viewer/2022060907/60a194910debf21c36727cf3/html5/thumbnails/49.jpg)
• 5. The gold standard clinical exam special test for
diagnosing an ACL tear is:
o A. McMurray
o B. Lachman
o C. Posterior Drawer test
o D. Valgus stress test at 0 degrees
![Page 50: NCAPA – North Carolina Academy of Physician Assistants · • AKA “shin splints” • Tenderness and pain along medial border of mid/distal tibia ... Knee tests: ACL – lachman,](https://reader033.fdocuments.in/reader033/viewer/2022060907/60a194910debf21c36727cf3/html5/thumbnails/50.jpg)
• 5. The gold standard clinical exam special test for
diagnosing an ACL tear is:
o A. McMurray
o B. Lachman
o C. Posterior Drawer test
o D. Valgus stress test at 0 degrees
![Page 51: NCAPA – North Carolina Academy of Physician Assistants · • AKA “shin splints” • Tenderness and pain along medial border of mid/distal tibia ... Knee tests: ACL – lachman,](https://reader033.fdocuments.in/reader033/viewer/2022060907/60a194910debf21c36727cf3/html5/thumbnails/51.jpg)
• 6. All of the following are common injuries
associated with an anterior shoulder dislocation
EXCEPT:
o A. AC joint separation
o B. Bankart lesion
o C. Hill Sachs lesion
o D. Rotator cuff tear
![Page 52: NCAPA – North Carolina Academy of Physician Assistants · • AKA “shin splints” • Tenderness and pain along medial border of mid/distal tibia ... Knee tests: ACL – lachman,](https://reader033.fdocuments.in/reader033/viewer/2022060907/60a194910debf21c36727cf3/html5/thumbnails/52.jpg)
• 6. All of the following are common injuries
associated with an anterior shoulder dislocation
EXCEPT:
o A. AC joint separation
o B. Bankart lesion
o C. Hill Sachs lesion
o D. Rotator cuff tear
![Page 53: NCAPA – North Carolina Academy of Physician Assistants · • AKA “shin splints” • Tenderness and pain along medial border of mid/distal tibia ... Knee tests: ACL – lachman,](https://reader033.fdocuments.in/reader033/viewer/2022060907/60a194910debf21c36727cf3/html5/thumbnails/53.jpg)
Thank you
A typical non ortho PA trying to study orthopaedics…