Musculoskeletal/Rheum Flashcards
What Salter-Harris Fracture is most common?
SH II
Which Salter Harris Fx involve the cartilage of the growth plate articular surface?
Type IV and V
What is Salter Harris Type I fracture
S=separated or slipped
Physeal separation Without extension into adjacent bone
What is Salter Harris II fx?
A=above the epiphyseal plate
Partial physeal separation with proximal extension into metaphysis
Salter Harris III
L=Lower
Partial physeal separtion with distal extensin into epiphysis
Salter Harris IV
T=Through
Fracture extends through metaphysis, physis, and epiphysis
Salter Harris V
R=ruined
Crush injury of physis
High liklihood of partial growth arrest
Name some child abuse fractures
- Any long bone fracture age <1 y/o
- posterior rib fracture
- “bucket handle” metaphyseal “corner fracture”
- lateral/parietal skull fracture
What nerve controls the extensors of the hands?
Radial nerve
What nerve controls the intrinsic muscle of the hands?
Ulnar nerve
What UE motor functions is the median nerve responsible for?
Pince grasp, Flexor at wrist/elbow, pronators
“Tea drinking”
What nerve is responsible for Thumb OAF (opposition, abduction, and flexion)
Reccurent median nerve (pure motor nerve)
also innervates the thenar immenence
easily injured
Adhesive Capsulitis
AKA Frozen Shoulder
Sxs: slow gradual onset of shoulder pain that can be severe
Formation of adhesions btwn joint capsule and humeral head; may follow injury or occur on own.
RF: diabetes and hypothyroid
Causes reduction in both active and passive ROM
Dx: Arthrography=shows decreased volume in the joint capsule and capsular contraction
Tx: Codman’s exercises: swing arm in pendulum motion with light handheld weights for five minutes 1-2 x daily
NSAIDs, Passive ROM,
Rotator Cuff Tear
- Occurs with overload (throwing athletes)
- Full Passive ROM, but limited active ROM
- pain and weakness during Active ABDUCTION
- dull aching pain in the shoulder-Interferes with sleep
- Impingement of the supraspinatus tendon
- PE: Positive Drop arm; weakness with “empty can” test
- MRIs-dx tears
Tx:small tear=Steroids, Complete tear=surgery; NSAIDs, PT
Of the 4 rotator cuff muscles, which one is most likely to strain causing tendonitis? what are the sxs?
Supraspinatus muscle
decreased ROM due to pain, but no weakness
Impingement syndrome-Sxs, PE, Tx
- Gradual onset of anterior, lateral shoulder pain,
- PE: painful arc from 60 to 100 degrees of elevation
- Pain on passive ROM with abduction
- Hawkins test, Neer test
- Tx: NSAIDs
How do rotator cuff injuries present?
dull aching in the shoulder; Cannot Abduct and externally rotate arm
What is the most common long bone fracture in children and adolsecents?
Fractured Clavicle
Fractured Clavicle
- Cause: FOOSH; birth trauma
- may have brachial plexus injury (sensory/reflex abnormality, pain, weakness)
- Dx: AP x-ray
- Tx: Kids-Figure 8 sling x 4-6 weeks
- 6 weeks in adults
Acromioclavicular Separation
- Tearing of AC or Coracoclavicular ligaments
- Usually caused by fall/impact to tip of shoulder
- Dx: AP view of both shoulders
- may require stress films while the patient holds a weighted object to reveal separation (weight bearing AC views)
- Tx: Sling (mild); surgery (severe)
Difference btwn presentation of anterior AC separtion vs. Posterior AC separation
- Anterior: arm held in external rotation with prominence of the acromion; “squared off” appearance
- Posterior: arm adducted and internally rotated, limited external rotation or abduction
what is the most common cause of Shoulder dislocation?
Fall on outstretched arm in abduction and extension
Anterior shoulder dislocation vs. Posterior
- Anterior more common than posterior
- Ass. with Axillary artery and nerve risk
- Ass. with greater tuberosity fracture and proximal humeral fx
- commin in QB
- Posterior dislocation=radial artery risk
- difficult to identify on x-ray
- usually occurs in seizures
How does Shoulder dislocation present? HOw is it diagnosed?
- Presents supporting the affected extremity
- Loss of shoulder contour is observed-elbow pointed outward with anterior dislocation
- Dx: AP X-ray or Transthoracic “Y” view
- HIll-Sachs lesion: Humeral head deformity found in recurrent dislocations
- MRI: Bankart’s lesion=tear of glenoid labrium
How do you treat shoulder dislocation?
- CLosed reduction (after assessing neurovascular status and obtaining imagery)
- Immobilization in Velpaeu’s sling
- <40 immobilize x 3 weeks
- >40 immobilize x 1 week
- Begin PT after immobilization
Humeral head Fracture
- Common in older adults with osteoporosis
- R/o injuries to brachial plexus and or Axillary artery
- Pain, swelling, tenderness over greater tuberosity
- Ecchymosis after 24 hours
- Dx: AP, lateral, and “Y” views
- Neer classification
- Tx:
- Nondisplaced fx: CLosed reduction (Velpaeu’s sling)
- Displaced fx: ORIF
What would you see with a radial nerve damage?
Wrist drop–>loss of wrist extension
Humeral Shaft fractures
Cause: MVA, FOOSH, penetrating injuries
Look for radial nerve injury!
Dx: AP and lateral views
Tx: Initial: Coaptation splint
then hanging cast, Samiento’s brace, or operative repair
Supracondylar humerus fracture
- AKA Distal humerus fx
- Cause: FOOSH with hyperextension of the elbow
- Sxs: pain worse with flexion or extension
- large effusion or edema and ecchymosis; Pt will not allow you to passively move the elbow
- R/o Brachial artery injury!
- Dx: AP and Lateral views
- Complication: Cubitus Varus (elbow deformity with decreased carrying angle)
- tx: Closed reduction with posterior splint for children; ORIF=adults
What is the most common elbow fracture in Adults?
Radial head fracture
Radial Head fracture
- FOOSH
- Tenderness to palpation of lateral elbow; pain worsens with forearm rotation
- Dx: AP and lateral X-rays
- Look for posterior fat pad sign–>suggesting hemarthrosis
- Tx: Nondisplace with full ROM=sling x 24-48 hours
- Displaced=posterior splint and sling with RAPID ORTHOPEDIC REFERRAL
What is the most common overuse injury of the elbow?
- Lateral Epicondylitis (AKA tennis elbow)
Lateral epicondylitis
- AKA Tennis elbow
- Lateral elbow pain
- Pain with active wrist extension against resistance (while forearm is pronated)
- Pain with lifting objects when arm is pronated
- Stop activity x 6 weeks
- NSAIDs, braces, PT, steroid inj.
medial epicondylitis
- Golfer’s elbow
- tenderness over medial epicondyle
- Pain produced by resisted pronation or flexion of the wrist (in supination)
- Tx: RICE, Nsaids
Elbow dislocation
- Fall with elbow locked in extension
- Posterior most common
- X-rays: check for Coronoid fractures