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
How many degrees of angulation of a radial fracture is acceptable in children?
15%
What is the treatment for an angulated/displaced radial fracture in adults?
ORIF
What is the major complication of a scaphoid fracture?
AVN
What is the physical exam sign of a scaphoid fracture?
Pain at the anatomic snuffbox
What xray is ordered for a scaphoid fracture?
Carpal series
What imaging is ordered to evaluate the severity of a scaphoid fracture?
MRI/CT
How is a scaphoid fracture treated?
Splint, cast, with immobilization of the thumb, wrist, and elbow
How large of a displacement requires ORIF?
1 mm or more
What is the diagnostic appearance for AVN of the scaphoid on xray?
Ground glass appearance or increased bone density early on
What is a boxer’s fx?
5th MC fx
How does a boxer’s fx present?
Loss of prominence of knuckle with pain
What is the most common fx of the phalanges?
distal
When should a fingernail be removed in association with a distal phalanx fracture?
If 50% or greater involvement
What is the MOI of a Mallet injury?
Downward blow to distal phalanx in extension
What is a Mallet injury?
Avulsion of distal extensor tendon from base of distal phalanx
How will a mallet injury present?
Inability to extend at DIP
How is a Mallet injury treated?
Splint in extension, refer to hand surgeon
What is a Jersey injury?
Avulsion of distal flexor tendon
How is a jersey injury treated?
splint in neutral, surgery
What is the most common finger dislocation?
DIP
How is a finger dislocation treated?
Reduction with pain control or not, splint, refer to hand specialist
Difficulty in reduction of a finger dislocation is an indication of what?
A caught central slip. May need surgery
What is the most common mononeuropathy?
Carpal tunnel
What is carpal tunnel?
Compression of medial nerve under the transverse carpal ligament
What are the clinical features of carpal tunnel syndrome?
Night pain, numbness, weakness, paresthesias, sparing the 5th digit, thenar atrophy in late
What PE tests are sensitive for carpal tunnel syndrome?
Tinnels and Phalens
What is the gold standard diagnostic tool for diagnosis of carpal tunnel?
EMG
What is the treatment for carpal tunnel?
Activity modification NSAIDS Volar splint (especially at night) Steroid injection Surgery for decompression
What is the MOI for an acetabular fracture?
Blow to greater trochanter
Hip dislocation - posterior wall
Rami Fx - Medial wal or posterior wall
What imaging should be ordered if there is a suspicion of an acetabular fracture?
CT
What nerve can be injured with an acetabular fracture?
Sciatic
When is surgery indicated for an acetabular fracture?
If unstable or displaced
What is the most common MOI for a dislocated hip?
Blow to flexed knee (MVA- dashboard)
How does a posterior (90% of hip dislocations) dislocated hip present?
Hip flexed, internally rotated, adducted
How does an anterior dislocated hip present?
Externally rotate, abducted, mildly flexed
How is a dislocated hip treated?
Orthopedic emergency
Reduction
Patients can experience AVN of the femoral head if hip is dislocated for how long?
12 hrs
What xray should be ordered for a dislocated hip?
Shoot thru lateral
How is a posterior hip dislocation reduced?
Pt supine, one person stabilizes the pelvis, another pulls in-line traction with simultaneous flexion, abduction and rotation
What is a hip fx until proven otherwise?
Hip pain
How does a patient with a hip fracture present?
Leg shortened, eternal rotation
What imaging should be ordered for a hip fracture?
Xray or CT for occult
What can be given before surgery to help with pain?
Buck’s traction 5-10 lbs
A hip fracture is a surgical emergency in what demographic and why?
young because of AVN
Are hip fractures surgical in elderly?
If they are stable
Who commonly experiences a stress fx of the femoral neck?
Distance runner eating disorder amenorrhea Osteoporosis Vitamin D/PTH
What risks are associated with a femur fracture?
Hemorrhage, compartment syndrome
A spiral fx of a non-weight-bearing child is what?
Child abuse
What must a femur fx x-ray include?
Hip and knee
Hip fractures in children under 6 are treated how?
Cast (Spica)
How is a hip fx treated in adults
Surgery
What is the MOI for a patellar fracture?
Fall on bent knee
What is crucial in evaluating a patellar fracture to r/o quad tendon rupture?
Straight leg test
What imaging is necessary for a patellar fracture?
xray
CT if surgical
What are the two surgical treatments for a patellar fracture?
ORIF vs patellectomy
What is a knee dislocation?
Complete dislocation of tibia from femur
Why is a knee dislocation an orthopedic emergency?
High risk of popliteal artery/nerve injury. can lead to amputation or death
What are common complications of a knee dislocation?
Artery/nerve injury High rate of chronic function loss Multi ligament disruption High risk of OA in future Compartment syndrome Rare return to sports
When should a dislocated knee be xrayed?
Pre and post reduction
What should be ordered for a dislocated knee for surgery planning?
MRI
What is the MOI of a patella dislocation?
Direct blow or twist
How is a patella dislocation reduced?
Extend knee
How is a patella dislocation treated?
Knee immobilizer and refer to ortho
What injury associated with a patellar dislocation is found on MRI?
Medial patellafemoral ligament injury
What is the MOI of a meniscal injury?
Rotational force of femur on tibia
Is a medial or lateral meniscal injury more common?
Medial
What will PE reveal about meniscal injury?
Inability to extend because of locking
+McMurry’s, +Apley’s
What is the gold standard for meniscal injuries?
MRI
What is the treatment for meniscal injury?
arthroscopy
What is the MOI for a cruciate ligament injury?
pivot/twisting
Is ACL or PCL injury more common?
ACL
What are the the sx of cruciate ligament injury?
A “pop” with instability and effusion (3-4 hrs later)
What PE signs indicate cruciate ligament injury?
Lachman’s (most sensitive) and anterior drawer (posterior drawer for PCL)
What is the gold standard imaging for cruciate ligament injury?
MRI
What other imaging should be ordered for cruciate ligament injury?
XR to rule out fracture, especially lateral tibial plateau with ACL
What is the treatment for cruciate ligament injury?
Surgery (6-9 mo recovery)
What is the MOI for a collateral ligament?
Direct blow causing med or lat force
What knee deformity indicates MCL injury
Valgus
What knee deformity indicates LCL injury
Varus
What is the tx for a collateral ligament injury?
PT, brace, RICE, NSAIDS, surgery is rare
What is Osgood-Schlatter disease?
Apophysitis of the tibial tubercle due to trauma or overuse
In what age group is Osgood-Schlatter seen?
8-15 y/o
What are the presenting sx of Osgood-Schlatter?
Anterior knee pain at tubercle
What imaging should be ordered for OS and what will they show?
Lateral XR that may show fragmentation/avulsion
What is the treatment for OS?
Activity modification, RICE, PT, NSAIDS
What are the complications of a tibial plateau fx?
Ligament/Meniscal injury, foot drop due to peronal nerve injury
What type of tibial plateau fx is more common in the elderly?
Depressed Fx
What type of tibial plateau fx is more common in the young?
Split fx
Are most tibial plateau fractures medial or lateral?
Lateral
What is the most common long bone fracture?
Tibia/fibula
What are common complications of tib/fib fractures?
compartment syndrome
Who commonly gets tibial and fibula stress fractures?
runners, dancers, military
What is the tx for most tib/fib fractures?
Surgery
What is the treatment for toddlers with tib/fib fractures and stress fractures?
Casting
Where do most fractures associated with ankle dislocations occur?
foot, proximal tib/fib
What xray should be ordered for an ankle fracture/dislocation?
3V ankle, dont miss the posterior
What are the majority of ankle strains due to?
Inversion
What ligament is most commonly affected with ankle sprains?
Anterior talofibular
What is the set of guidelines called that helps determine of a patient with ankle pain needs an xray?
Ottowa Ankle
What is the treatment for an ankle sprain?
RICE
NSAID
WBAT
PT
How long does it take to recover from an ankle sprain?
3-4 months
The fracture of what bone in the foot is an orthopedic emergency due to possible AVN?
Talus fracture
What is the MOI of a talus fx?
Fall with hyperflexed foot
When should a talus fracture be displaced?
When it’s non-displaced
When should a talus fracture be operated on?
When it is displaced
What is the MOI for a calcaneal fx?
Fall from a height
What injuries are commonly associated with calcaneal fractures?
Bilateral
Spine Fx
Leg fx
What imaging should be ordered for a calcaneal fracture?
3V foot + Os calcis views
What imaging should be ordered along with xrays for a calcaneal fracture?
CT. Xray seriously underestimates the severity of the injury
What structure should be evaluated with a calcaneal fracture?
Achilles tendon
What is the treatment for a calcaneal fracture?
ORIF or closed
What is the MOI of a metatarsal fx?
Direct trauma, twist
What imaging should be ordered for metatarsal fracture?
xray
What is the treatment for a metatarsal fracture?
NWB/ closed reduction if not displaced
What is a Jones injury?
Inversion injury with fx at diaphyseal junction of the 5th MT
How is a jones injury treated?
NWB, surgery
What is a Lisfranc Injury?
Fracture/ligament rupture between base of second metatarsal and medial cuneiform
What is the MOI of a lisfranc injury?
Extreme plantarflexion
What imaging is ordered for a lisfranc injury?
3V XR of foot, consider stress views, CT or MRI
What is the treatment for a Lisfranc injury?
Surgery
What treatment is ordered for phalangeal foot fx?
XR entire foot to evaluate for associated injury
Which toe is most important to have perfect alignment?
1st toe b/c of balance and painful OA
What is the treatment for a phalangeal fx of the foot?
Hard sole shoe and buddy taping