Ortho Flashcards
What is the most common accident and cause of hospitalization in pts > 65 yo?
Falls
What is the most common primary bone cancer of childhood?
Osteosarcoma
How do x-rays look in a pt who has osteosarcoma?
Moth eaten
Sunburst
Codman triangle
Fluffy
What is the gold standard diagnostic test for osteosarcoma?
MRI
What is the 2nd most common primary malignant bone tumor that mostly affects adolescents?
Ewing sarcoma
What appearance does Ewing sarcoma have on x-ray?
Onion skin
What is the gold standard diagnostic test for Ewing sarcoma?
CT guided core-needle biopsy
What is the 3rd most common primary malignancy of bone that primarily affects pts > 50 yo
Chondrosarcoma
What is the gold standard diagnostic test for chondrosarcoma?
Core-needle biopsy
What symptoms might direct you to consider that a pt may have metastatic bone tumors?
Progressive pain that is unresponsive to typical MSK treatment
Night pain
Weight loss
Pain w/weight bearing
Where do most bone mets originate from?
Breast
Prostate
Lung cancer
What is the classic symptoms of osteoid osteoma?
Severe intermittent pain at night that is relieved with NSAIDs
Does osteoid osteoma become malignant?
No
What is the gold standard diagnostic test for osteoid osteoma?
CT
What is the curative treatment for osteoid osteoma?
Surgical excision
What is the most common mesenchymal tumor of the human body?
Lipoma
What are the most common signs/symptoms of a lipoma?
Rubbery mass that grows slowly
What size lipoma would you get imaging for?
> 10cm
What % of lipomas return even if surgically removed?
50%
What presents with anterior shoulder pain that gets worse with activity and has a popping sensation when reaching behind or overhead?
Bicipital tendinitis
What presents with a decreased ROM in the shoulder, weakness, pain that is ongoing for months, has a “grating” or “catching” sensation, and has pain when reaching or lying on the affected side?
Rotator cuff disorder
What muscles are part of the rotator cuff?
Supraspinatus
Infraspinatus
Teres minor
Subscapularis
What is the imaging of choice for a rotator cuff disorder?
MRI
What can occur in a pt that has prolonged immobilization of the shoulder?
Frozen shoulder
What presents as lateral elbow pain that is worse with lifting, gripping, and wrist twisting motion?
Epicondylitis
What presents with pain over the olecranon process?
Olecranon bursitis
What are the signs/symptoms of a nursemaid’s elbow?
Child < 5 yo
Acute elbow pain that rapidly subsides
Reluctance to use injured arm
Positive “popsicle test”
How do you treat a pt with a nursemaid’s elbow injury?
Manual manipulation
What is the difference between tennis elbow and golfer’s elbow?
Tennis: lateral epicondylitis
Golfer: medial epicondylitis
How does carpal tunnel occur?
The median nerve is compressed through the carpal tunnel
What 2 diagnostic tests will be positive in a pt with carpal tunnel?
Phalen
Tinel
What presents with pain at the base of the thumb that gets worse with abduction?
De Quervian’s tenosynovitis
What test will be positive in a pt with De Quervian’s?
Finkelstein
What fingers are commonly affected by trigger finger?
1st (thumb)
2nd (index)
3rd (middle)
What are the signs/symptoms of trigger finger?
Progressively more frequent “locking” of the finger in the flexed position without a preceding injury
What commonly affects the 4th (ring) and 5th (pinky) finger and presents with fingers flexed toward the palm?
Dupuytren’s contracture
What presents with lateral hip pain that increases with walking, running, or lying on the affected side and does NOT radiate below the knee?
Trochanteric bursitis
What presents after a twisting injury to the knee that gets worse with going up/down stairs, and “pops” and “clicks” with flexion/extension?
Meniscus tear
What is the most common synovial cyst in the knee?
Baker’s cyst
What diagnostic test will be positive in a pt with a meniscus tear?
McMurray’s
Thessaly
How do collateral ligament injuries occur?
ACL: deceleration injury w/immediate “pop”/pain
MCL: valgus force (knees go towards each other)
LCL: varus force (knees away from each other)
How are collateral ligament injuries graded?
Grade I: < 5mm joint space opening
Grade II: 5-10mm joint space opening
Grade III: > 10mm joint space opening
What grade collateral ligament tears require surgical reconstruction?
Grade III
What is the Ottawa criteria?
Used to determine if imaging should be done for an ankle injury
1. inability to bear weight AND/OR
2. direct bony tenderness of the medial or lateral malleolus
How many of the Ottawa criteria must be met to get an x-ray for an ankle injury?
1 or both
What are the classic symptoms of plantar fasciitis?
Pain to the arch of the foot/heel that is the worst with the 1st step of the day, improves with walking, and worsens at the end of the day
What disorder occurs when there is more osteoclast activity (bone breakdown) than osteoblast (bone building) activity?
Osteoporosis
When do you start screening pts for osteoporosis?
Women at 65 yo
Men at 70 yo
What tests are used to screen for osteoporosis?
DEXA (bone density) scan
FRAX (fracture risk assessment score)
Most ortho disorders/injuries are treated conservatively first with what?
Tylenol/NSAIDs
Therapy/activity mods
Steroid injections
RICE
What is the treatment for osteoporosis?
Decrease fracture risk
Bisphosphonates, hormones/SERMs
Lifestyle: calcium, Vit D3, weight bearing exercise, fall prevention
What is the 2nd most common bone remodeling disease?
Paget’s disease
What disorder is commonly described as “softening” of the bone?
Osteomalacia
What is the gold standard diagnostic test for osteomalacia?
Bone biopsy
What is the most common ortho injury and what typically causes it?
Distal radius fracture
FOOSH
What is the most common carpal fracture and presents with anatomic snuffbox tenderness?
Scaphoid fracture
What presents with pain to the thumb and inability to pinch/grasp and is commonly seen in those who play soccer and football?
Thumb collateral ligament injury (gamekeeper’s thumb)
What bone is injured in someone with a boxer’s fracture?
5th metacarpal neck
What is the 3rd most common non-vertebral fracture in pts > 65 yo?
Proximal humerus fracture
What injury is common in runners and military personnel due to overuse and repetitive stress?
Tibial shaft stress fracture
What is the most common ortho disorder in newborns?
Developmental dysplasia of the hip (DDH)
What tests are used to test for developmental dysplasia of the hip?
Barlow or Ortolani
What diagnostic tests/tools are used for developmental dysplasia of the hip?
Screening at < 3 months old
Ultrasound (birth - 4 months)
Xray (> or = 4-6 months)
MRI arthrogram (adolescents & above)
What is the most common disorder that affects adolescent hips?
Slipped capital femoral epiphysis (SCFE)
What are the signs/symptoms of slipped capital femoral epiphysis (SCFE)?
Atraumatic
Pain lasting months
Knee pain
Abnormal gait/limp
Obligatory external rotation during passive flexion of the hip (Drehmann sign)
What Cobb angle is diagnostic for scoliosis?
> 10*
What is the treatment for scoliosis?
< 20* curve: observation
20-50* curve: bracing
> 50* curve: surgery
What is the most common cause of neck/back pain that presents to primary care?
Mechanical (muscular) neck and back pain
What should you assess for in all pts who present for back pain?
Cauda equina syndrome
What is commonly caused by a herniated/bulging lumbar intervertebral disc?
Sciatica
What are the signs/symptoms of sciatica?
Mechanical lower back pain with “burning” pain to the buttocks
Radiation of pain down the lower extremity to the foot
What presents with an increase in the forward curvature of the spine beyond normal range and pt may appear to have a rounded or humped deformity of the upper back?
Kyphosis
What is the gold standard diagnostic test for kyphosis?
X-ray
What Cobb angle is diagnostic for kyphosis?
> 40*
What is the treatment for kyphosis?
60* or <: conservative
> 75: surgery
Adolescents w/ > 60: back brace
What are the 3 types of kyphosis?
Postural kyphosis (starts in adolescence)
Scheuermann disease (starts before puberty)
Congenital (starts at birth)
What are the normal ranges of motion?
Flexion: 90*
Extension: 30*
Lateral side bending: 30*
Rotation: 30*
What presents with upper/lower back pain that improves with rest and spine flexion and worsens with ambulation & spine extension?
Spinal stenosis
What is the gold standard diagnostic test for spinal stenosis?
MRI
What other disorder presents with similar symptoms as sciatica?
Herniated disc
What is the gold standard diagnostic test for a herniated disc?
MRI
What presents with saddle anesthesia and loss of bowel/bladder function and is a medical emergency?
Cauda equina syndrome
What is the gold standard diagnostic test for cauda equina syndrome?
Urgent MRI
What is the treatment for cauda equina syndrome?
Prompt neurosurg/ortho consult for decompression