Orthopedic Surgery - Part 2 Flashcards
What are the two main types of pelvic fractures?
Superior/inferior pubic rami fx (not fatal)
High-energy fx (can be fatal)
What is the usual cause of superior/inferior pubic rami fx?
Fall on butt (Elderly)
How are superior/inferior pubic rami fractures treated?
Non surgical
Pain control (may require hospitalization)
WBAT
What is the one factor of superior/inferior pubic rami fractures that should be looked for as they can be a major complication?
Extension of fx into acetabulum
What percentage of high energy pelvic fractures have other injuries?
85%
What are two common complications of high energy fractures?
Hemorrhage, urogenital injruy
What does an L5 transverse process fx suggest?
Instability because of disassociation of pelvis and spine
What is an open book pelvic fracture?
Separating of symphysis pubis. Can result in separation of SI joint
What is the MOI for an open book fracture?
AP compression
How many units of blood are typically needed for open book pelvic fractures?
6-15 units
What is a vertical shear pelvic fracture?
Open pubic symphysis, separated SI joint, fractured rami
What should be checked before foley insertion?
Ureteral bleeding
What IV access should be placed with pelvic fractures?
Large bore IV x 2
If AP pelvic xray is positive for pelvic fracture what other imaging should be ordered?
Inlet/Outlet XR and CT scan
What images are part of trauma imaging?
C-spine, abdominal, pelvic films
How should MAST trousers be removed to prevent distributive shock?
Deflate slowly and monitor vitals carefully
Should bleeding in pelvis or elsewhere be stopped first?
Elsewhere
Of there is no abdominal bleeding what can be placed to stabilize the pelvis until surgery?
Abdominal binder or external fixator
When should abdominal binder/external fixator be removed?
Not until ready to administer definitive care
How do you treat continued hemoinstability?
Transfusion followed by angiography
What will males experience following ORIF of a pelvic fracture?
Significant scrotal swelling
What is the MOI for clavicle fractures?
Fall on shoulder
Where are clavicles most commonly fractured?
Midshaft (80%)
What clavicle fracture has the highest risk of nerve and vessel trauma?
Medial border
What is the treatment for closed clavicle fracture?
Sling or figure 8 for 6-12 weeks
What movements should a patient with a clavicle fracture avoid?
Forward flexion, abduction, and external rotation of the shoulder joint
What is the MOI for a separated shoulder?
Fall on the tip of the shoulder
What is a separated shoulder?
Disruption of acromioclavicular joint
How are grade I and grade II separated shoulders treated?
Sling, NSAID, PT
How are grade III separated shoulders treated?
Surgically if it is an athlete or in a high demand job
How do you treat an anterior sternoclavicualr joint dislocation?
Conservatively
How do you treat a posterior sternoclavicular joint dislocation?
Surgically, high vascular area
What is the MOI for a scapular fracture?
Significant direct trauma
How often are scapular fractures associated with other injuries and what other injuries occur?
80% in clavicle, ribs, pulmonary contusion, pneumothorax, brachial plexus injury
What imaging should be ordered for a scapula fracture?
Chest (look for pneumothorax) 3V shoulder (Look at glenoid)
What is the treatment for scapula fractures?
Non surgical with the exception of glenoid involvement
What percent of displacement is acceptable before surgery is necessary in proximal humerus fractures?
50%
How is a proximal humerus fracture plus an associated rotator cuff tear managed?
Wait until the fracture is healed, the address RC tear
How does an anterior/inferior shoulder dislocation present?
Pt holds arm at side with arm down and in front
“empty socket sign”
What is the MOI for a shoulder dislocation?
FOOSH
If a patient has a severe seizure what imaging should be done?
Shoulder x-ray for posterior dislocation
How does a patient present with a posterior dislocation?
Cannot externally rotate
What imaging should be ordered for a shoulder dislocation?
3 view pre and post reduction x-ray
What is a Hill-Sachs lesion?
Chipped head of humerus following shoulder dislocation
What is a Bankart Lesion?
Chipped glenoid from shoulder dislocation
How are shoulder dislocations treated?
Reduction and immobilization, referral to ortho, PT
What percentage of patients re-dislocate their shoulder if they have a Bankart lesion?
80%
What is the treatment of shoulder dislocations with a Bankart lesion?
Surgery
What does the SITS pneumonic mean for rotator cuff muscles?
Supraspinatus, Infraspinatus, Teres minor, Subscapularis
What tests are sensitive for RC tear?
Empty can and Drop arm
What tests are sensitive for impingement of the rotator cuff?
Hawkins, Neers
How many Xray views should ALWAYS be ordered for shoulders?
3
What x-ray findings will be present with shoulder impingement?
Impinging osteophytes at AC joint
What imaging should be ordered to evaluate for tear or degree of impingement?
MRI
How are rotator cuff tears treated?
NSAIDS, PT, rest, ice, cortisone injection
How are persistent impingements treated?
Arthroscopic subacromial decompression
Where is the most common humerus fracture?
Midshaft
What nerve is easily damaged with humerus fracture?
Radial
How do you check if the radial nerve is intact?
Thumbs up
How is a closed humerus fracture treated?
Coaptation splint or humeral fracture brace
When is ORIF indicated for humerus fracture?
Open fx, vascular injuries, gross displacement, significant comminution
What is the MOI for a supracondylar humerus fx?
FOOSH + hyperextension of elbow
What could also be injured with supracondylar humerus fx?
Brachial artery
What is a Volkmann’s ischemic contracture?
Brachial artery gets injured - becomes spastic and spontaneously closes off
What should be monitored often to detect a Volkmanns ischemic contracture?
Radial pulse
What are the two signs on xray that indicate a supracondylar fracture?
Anterior sail or posterior fat pad
How are supracondylar fractures treated in children?
Cast, closed reduction + cast, CRPP, ORIF
How are supracondylar fractures treated in adults?
Usually ORIF
What is the most common elbow dislocation?
Posterior lateral
How does a pt with elbow dislocation present?
Elbow extended, arm abducted, forearm supinated
How is an elbow dislocation reduced?
Correct med/lat deformity first then flex elbow at 90 degree with distal traction
How is an elbow dislocation treated?
Reduce, splint posterior elbow at 90 degrees, refer to ortho
What is a nursemaids elbow and what is the MOI?
Subluxation of radial head caused by excessive longitudinal traction
What ligament can be affected by a nursemaids elbow?
Annular
How is a nursemaids elbow reduced?
Fully supinate and flex forearm
What should forearm fracture films include?
Elbow and wrist
How are forearm fractures treated?
reduce and long arm cast or ORIF especially in adults
What injury is commonly coincides with radius and ulna fracture?
Radial head dislocation
What is the MOI of a radial fracture?
FOOSH
What is a Collie’s fracture?
Dorsal angulation radius fracture
What is a Smith’s fracture?
Volar angulation radius fracture