Fractures + Joint Disorders Flashcards
Common site of stress fractures
Tibia
Fibula
Navicular
Femoral Neck
Pars Interarticularis
Talus
Sesamoids
Metatarsals (2nd/3rd)
Medial Malleolus
Ix for stress fractures
CT
MRI
Bone scan
FU XR 3 mo
RF for stress fractures
Female
Repetitive Activities (sports, running, walking, marching, gymnastics)
Obesity
Osteoporosis
Post-Menopausal
Rheumatoid Arthritis
Corticosteroids Use
Poor Footwear
Previous Inactivity
Previous Stress Fracture
Management of elderly w/ acute mobility change
investigate with bone scans + CT before excluding fracture
What are fragility fractures?
Fracture that is sustained from a fall from standing height
How to describe a fracture
Closed v open
Location
Orientation
Ways of describing location of fracture
Epiphyseal: end of bone
Metaphyseal: flared portion of bone at end of shaft
Diaphyseal: shaft of long bone
Physis: growth plate
Ways of describing orientation of fracture
Transverse
Oblique (angular)
Spiral (complex, multiplanar, rotation force)
Comminuted (more than 2 fracture fragments)
Intraarticular
Green-stick (incomplete fracture of one cortex)
Early complications of fractures
Compartment syndrome
Neurological/ vascular injury
Infection
Fracture blister
Late complications of fractures
Mal/ non-union
Avascular necrosis
Osteomyelitis
Heterotrophic ossification
Arthritis
Which fractures may not show up on XR and should be treated anyway?
Scaphoid
Elbow
Growth plate
Stress
When do you use a forearm volar slab splint
soft tissue injury of hand/ wrist, carpal bone fracture (excluding scaphoid), childhood buckle fracture distal radius)
How to apply a forearm volar slab splint
Landmark: distal palmar crease + proximal third of forearm
Stockinette should go 10cm beyond landmarks
Make splint with 10 layers of plaster between landmarks
What is a Toddler’s fracture - mechanism, age, presentation, XR + management
Spiral tibial fracture
Mechanism: twisting injury while tripping
Age: 9mo-3y/o
Presentation: limping, inability to wt bear, tenderness at site
XR: repeat in 2 wks as hard to see fracture line, 2 view antero-posterior and lateral and consider internal oblique
Management: immobilisation with short leg back slab - not cast. Remove in 4 wks
When are C spine rules applicable
stable pt, GCS 15, injury <48hrs ago, >16y/o, no vertebral dz, no penetrating injury, not pregnant
C spine rules
Any high risk factors:
-Age >65
-Dangerous mechanism
- Paraesthesia in extremity
If YES to any = XR
Any helpful factors?
Ambulatory at any time
In a sitting position in ED
Delayed onset of pain
No midline C spine tenderness
Simple rear end collision
If any of these factors present, can assess neck movement.
If none of these factors present, need XR.
Assessing neck: can they actively rotate neck left and right by 45? No = XR
Yes = cleared
Ottawa knee rules
Age > 55
Isolated patellar tenderness
Tenderness head of fibula
Inability to flex 90
Inability to wt bear immediately AND in ED
Classification, ix and management of clavicle fractures
Allman classification
Ix: anteroposterior + serendipity views
Management: sling for 2-6w, may need surgery for displaced fracture
Mechanism of shoulder dislocation (ant + post)
Anterior = abduction, extension, external rotation
Posterior = posterior directed force, electric shock or sz injury
shoulder dislocation - physical findings, ix and management
Physical: palpable humeral head in axilla, dimple inferior to acromion laterally, assess for axillary nerve injury
Ix: anteroposterior, scapular Y, axillary XR
Management: XR before and after reduction, sling 1w, PT after 2w
Features on hx of scaphoid fracture + sx
FOOSH w/ wrist dorsiflexion + radially deviated, swollen, swelling + pain in anatomical snuffbox. Pain w/ axial pressure on 1st metacarpal bone
Sx of late presentation of scaphoid fracture
painful wrist extension, loss of grip
XR - what to order + management of scaphoid fracture
XR: anteroposterior, lateral, oblique views)
Management: immobilize wrist in spica short arm cast and re-image
If high clinical suspicion but not confirmed on XR, splint w/ spica cast and repeat XR in 10-14d or bone scan 1-2d after injury
Causes of volar plate injury + place of maximal tenderness. What should you also test when examining?
Hyperextension of finger joint, usually PIP
maximum tenderness volar aspect of joint. Test collateral ligaments
Complications + management of volar plate injury
Complications: joint instability can lead to gradual hyperextension
Management: splint w/ progressive extension for 2-4wks followed buddy taping
Median nerve distribution
1st (thumb), 2nd (index), 3rd (long), and radial 4th (ring) fingers
Signs of carpal tunnel
Paresthesia (median nerve distribution)
Nocturnal awakening
Positive Flick Sign
Positive Tinel Sign (over flexor retinaculum)
Positive Phalen Sign
Positive Durkan Compression Test
Decreased Sensation (1st, 2nd, 3rd fingertips)
Decreased Grip Strength
Decreased Opposition Strength
APB Weakness (abductor pollicis brevis)
Thenar Eminence Wasting
Ulnar nerve distribution
5th (pinky), and ulnar half of 4th (ring) finger
Ix for carpal tunnel
EMG
Rx for carpal tunnel
NSAIDs (oral, topical)
Modified Duties (avoid repetitive strain)
Wrist Splinting
Corticosteroid injection
Oral Steroids
Open Carpal Tunnel Release
What is a claw hand?
Flexion of the DIPs and PIPs of the 4th and 5th digits with extension of all the MCPs or inability to extend the 4th and 5th digits at the DIPs and PIPs. When asked to open their hand, the patient will present this “Claw Hand” but the patient is able to make a full fist. This is present in ulnar nerve injuries.
What is the benediction sign?
Flexion of the DIPs and PIPs of the 4th and 5th digits with extension of all the MCPs or inability to flex the 2nd and 3rd digits at the PIP. When asked to close their hand, the patient will present this “Benediction Sign” and when asked to open their hand, the patient will not be able to extend them either. This is present in median nerve injuries.
Features of dupuytrens contracture
Idiopathic
Autosomal Dominant (incomplete penetrance)
Palmar Fibromatosis (progressive fibrosis of palmar fascia)
Flexion Deformaties
Loss of Grip Function
Nodules → Cords → MCP Joint Contracture
RF for dupuytrens contracture
Male
Increased Age
Family History
Northern European Ancestry
Smoking
Alcohol Use
Diabetes Mellitus
Chronic Vibration Exposures
Epilepsy
Management of dupuytrens contracture
Corticosteroid Injections
Collagenase Injections
Percutaneous and Needle Fasciotomy
Open Fasciotomy
Sx Trigger Finger
Locking, clicking or snapping of an extending digit in flexion
Palpable Nodule (over A1 pulley at MCP joints)
Crepitus
Tenderness
Rx for trigger finger
Splinting
Physiotherapy
Corticosteroid Injection
Surgical Release (A1 pulley)
Mallet finger
Extensor Tendon Injury at DIP joint
Hyperflexion Injury of an Extended DIP (eg: ball strike)
Avulsion Fracture of the Distal Phalanx (can be present)
Finger held in passive DIP flexion
Absent DIP extension
Normal DIP and PIP flexion, normal PIP extension
Rx mallet finger
Finger splint in DIP hyperextension x 6 weeks (if patient flexes their finger during any point of this 6 week period, they need to restart treatment period, if not, it can result in a permanent deformity)
Adhesive capsulitis stages
Freezing (0-9 months); significant increasing pain with gradual decreased range of motion
Frozen (4-12 months); pain gradually subsides with peaked limitation of range of motion
Thawing (5-24 months); both pain and range of motion gradually return to baseline
Rx for adhesive capsulitis
Physiotherapy (it is important that only gentle pain-free range of motion exercises be implemented during the “freezing” stage so that it does not worsen the condition)
Corticosteroid Injections (intra-articular glenohumeral)
Analgesics
Relative Rest and Reassurance
Orthopaedic Referral (Capsular Release)
Distention Arthrogram
Tests to perform on joint aspirate
Cell Count
Culture and Sensitivity
Gram Stain
Crystals
Sx thoracic outlet syndrome + positive tests
Numbness and tingling in arms + fingers
Weakness in hand grip strength
Pain in neck, shoulder and arm
Adson Test
Roos Test
Morley Test
Rx thoracic outlet syndrome
PT
Types of thoracic outlet syndrome
Neurogenic (compression of brachial plexus)
Vascular
Rotator cuff external rotation
Teres minor
Infraspinatus
Knee jerk reflex
L2-L3-L4 (Mainly L4)
Achilles’ tendon reflex
S1-S2 (Mainly S1)
Name 2 different nerves that could be responsible for a foot drop.
L5 nerve
Peroneal Nerve
XR findings with ACL rupture
Segond fracture
Sx radial head # and sign on XR
Reduced flex/ ex at elbow
Pain with pronation/ supination
Anterior/Posterior Fat Pad or “Sail Sign
Femoroacetabular Impingement features, sx
young person, anterolateral hip pain, worse with flexion adduction and internal rotation
Pes anserine bursa - where is it?
medial aspect of knee
Lateral ankle ligaments
ATF (anterior talofibular)
PTF (posterior talofibular)
CFL (calcaneofibular)
Infectious tenosynovitis sx
Pain with Passive Extension
Uniform Swelling
Flexion Posture
Percussion Tenderness
Causes of anterior elbow pain
Bicep tendinopathy
OA/ RA/ gout
pronator syndrome
Biceps tendinopathy mechanism, sx, ix and management
Mechanism: repeated elbow flexion w/ forearm in supination or pronation, overhead activities, pulling + lifting
Sx: ant elbow/ shoulder pain, hook test
Ix: US
Management: NSAIDs, rest, ice, PT
Causes of posterior elbow pain
olecranon bursitis
triceps tendinopathy
posterior impingement
Causes of medial elbow pain
medial epicondylitis (Golfer’s elbow)
cubital tunnel syndrome
ulnar collateral ligament
Causes of lateral elbow pain
lateral epicondylitis (Tennis elbow)
radial tunnel syndrome
olecranon bursitis causes + rx
Causes: trauma, anticoagulation, chronic repetitive leaning on elbows
Management: activity modification, consider aspiration, steroids if persistent
Sx + management of lateral epicondylitis (Tennis elbow)
Sx: pain + reduced grip strength, maximal pain 1cm distal to epicondyle, pain w/ resisted supination
Management: NSAIDs, bracing, PT, steroid inj
Cause, sx + rx of medial epicondylitis (Golfer’s elbow)
Cause: repetitive valgus stress + flexion at elbow
Sx: gradual onset medial elbow pain + grip weakness, maximal tenderness at flexor-pronator insertion (10cm ant/ distal to medial epicondyle). Pain w/ resisted pronation
Management: rest, brace (wrist extension), PT, steroid injection
Causes of shoulder pain
AC joint sprain/ separation
Rotator cuff tendinopathy/ tear
Adhesive capsulitis
Shoulder impingement
Mechanism, sx, Ix + management of AC joint sprain/ separation
Mechanism: fall onto superior aspect of shoulder w/ arm adducted
Sx: AC tenderness, swelling of displaced clavicle, active compression test
Ix: anteroposterior XR + Tauber protocol (Zanca, axillary + dynamic lateral views)
Management: sling 2w, PT, possible surgery
Sx, physical signs, Ix + Rx of Rotator cuff tendinopathy/ tear
Sx: pain w/ overhead activities
Physical:
Infraspinatus + teres minor: external rotation against resistance
Subscapularis: Gerber’s lift off
Supraspinatus: empty can test, painful arc
Ix: US then MRI for further assessment
Management: surgery ASAP for young pts with full thickness tear. Small or chronic tears: PT, NSAIDs, steroid inj
Sx + Rx of Adhesive capsulitis
Sx: gradual onset pain, stiffness, reduced ROM in all direction, pain at extremes
Management: tylenol, PT, steroids
Sx + Rx of Shoulder impingement
Sx: pain anterolateral aspect of shoulder, worsened with overhead activities, worse at night
Management: rest, ice, NSAIDs, PT, steroids
Ottawa ankle rules
Pain in malleolar zone AND 1 of:
Bone tenderness lateral malleolus
Bone tenderness medial malleolus
Inability to wt bear immediately + in ER