ORTHO BLOCK1 Flashcards
Define Clinical Symptoms and adverse outcomes of Osteoarthritis
Clinical:
Stiffness, joint pain, deformity Common locations: fingers, knees, hips, and spine Mechanical symptoms Secondary- history of trauma *Fracture *Osteonecrosis *Developmental hip dysplasia
Adverse:
Progressive degeneration Chronic pain Decreased ROM Decreased strength Instability Lower extremity contracture
Pt on Physical exam:
presents with decreased ROM, Crepitus, Muscle atrophy, and joint line tenderness
What is Most likely Dx?
OA
Shoulder arthritis presents as
Posterior shoulder pain
OA in the hands presents as
DIP (herberden) and
PIP (Bouchard)
OA in the thumb presents as
CMC ( Carpal/ Metacarpal) OA,
W/ grip and pinch activity pain
What is a CMC grind test
Pushing in the thumb and grinding it, pain is a positive finding of OA
OA in the Hip present with…
Anterior pain; Walk in external rotation with limited internal rotation
OA in the Knee presents with
Most commonly genu varum due to medial compartment wear
OA in the foot presents with..
1st MTP= hallux rigidus, subtalar joints
Hallmark imaging findings of OA
joint space narrowing Sclerosis -(whiting of bone sub joint space) subchondral cysts Osteophytes (bone spurs)
Referral and Red Flag points for OA
Non-operative failure
Limited functional ROM
Young with severe disease
What is the best imaging study for finding fragments in a joint
CT
How does RA vs OA progress over the day
OA is better after rest ( mornings) and gets worse throughout the day
RA is worse in the morning and improves throughout the day
RA most commonly infects which joints
Small joints, wrist, MCP, PIP, MTP
What are the adverse outcomes associated with RA
C1- C2 instability due to erosion of odontoid ligaments
Tendon Ruptures
Deformity of the hands fingers and toes
What are the wrist and finger deviations in RA
Wrist will radially deviate
Fingers will ulnarlly deviate
Osteopenia and bony erosions, w/ symmetric joint space narrowing/ involvement
Malalignment of joints
Indicates…
RA
What is the best lab test for specificity of RA
Anti CCP
Anti Cyclic citrullinated peptide bodies
What is the DOC for RA
DMARDS
- TNF alpha
- ANAKINRA
- RITUXIMAB
- ABATACEPT
2* Injections
Seronegative spondyloarthropathies most often affect what joints
The sacral joints, S1 (BACK PAIN)
What is the cant see, cant pee, cant bend the knee
Conjunctivitis + enthesitis + urethritis
Reuters syndrome
MOC: Chlamydia
Limited ROM, male 15-30, back pain, hand swelling, and nail abnormalities, enthesitis
Indicates
Ankylosis spondylitis
What is the #1 S/s of compartment syndrome
PAIN OOPT
What is the most sensitive earliest exam finding in compartment syndrome
Passive stretch of the muscles in the compartment
Parenthesis in the 1st web space ( dorsal) with weak Dorsi flexion with pain on passive great toe flex is compartment syndrome where
Anterior leg
Pain with passive ankle inversion is compartment syndrome where
Lateral leg
Pain with passive extentsion of the great toe is compartment syndrome where
Deep posterior leg
Pain with passive Dorsi flexion of the ankle is compartment syndrome where
Superficial posterior leg
What is a NML resting compartment pressure
Less than 15 mmHg
What are the pressure readings for acute compartment syndrome
Absolute pressure greater than 30 mmHg or w/in 30 mmHg oh the DBP
What are the pressure readings for chronic compartment syndrome
Resting pressure greater than 15mmHg
Greater than 30 mmHg post exercise
or
Greater than 20 mmHg 5 minutes post exercise
What are type I and II Complex regional pain syndrome
Type 1- No identifiable nerve injury
Type 2- Nerve lesion exists
What does algodystrophy mean
Burning pain ( associated with Complex regional pain syndrome)
What are the clinical findings in Complex regional pain syndrome
START NOW
Swelling Temperature Agony/ Pain Redness Tremors
Nerve medication (DOC) (Gabapentin)
Opiods (Helpful)
Workouts (key to Tx)
What does Homans test detect
DVT
What disorder is marked by osteophyte formation spanning three or more intervertebral disks involving the anterior longitudinal ligament
DISH
Diffuse idiopathic skeletal hyperostosis
True or False:
DISH effects men more than women?
True
Men ( 2:1) and older than 60
What is the Tx approach to DISH
Non operative, Walking, NSAIDS
What is the most common soft tissue tumors of the hand and wrists oh pts between 15-40 years old
Ganglia
Where is a bakers cyst located
Popliteal cyst
Mucoid cysts are located where
In the fingers
( typically in arthritic pts)
What imaging study is best to look at ganglia
US ( popliteal cysts)
What imaging study can find occult volar wrist cysts
MRI
Should you aspirate cysts located on fingers
No!
What is the referral criteria for a ganglia
Atypical location
Aspiration failure
Septic joints
What is the most common spread of osteomyelitis in peds
Hematogenous spread
All open fx patients get referred to ortho to prevent
Osteomyelitis
Most common organisms that cause osteomyelitis
S. Aureus ( most common overall)
S. Epidermis ( prosthetic joints)
Salmonella ( common in sickle cell)
Group B Strep ( neonates)
Group A beta hemolytic (Skin or peds)
Pseudomonas ( Puncture wounds in tennis shoes)
Knee Inflamation is…
Bone infection/ inflamation
Knee: septic joint
Bone: osteomyelitis
Osteopenia with soft tissue swelling and periostea reaction/ elevation is an early indication of ..
Osteomyelitis
What is the gold standard/ definitive Dx for osteomyelitis
Biopsy/ bone aspiration
What 4 labs should be ordered for osteomyelitis
ECP( more useful)
ESR
WBC
Blood culture
Are oral ABX effective against osteomyelitis
NO!, use IV and debridement
What joints are most likely to be infected in young children vs adults with septic arthritis
Hip in young children
Knee most common in older children and adults
What are the organisms that cause septic arthritis
S. Aureus ( most common in all age groups )
Strep Group A and B ( Neonates and infants)
N. Gonorrhea ( sexually active young adults)
Pseudomonas ( Immunocomp pts)
What are the ADE of septic arthritis
Joint destruction and OA
What is the best initial and most accurate test for septic arthritis
Joint aspiration ( WBC > 50, 000- primarily neutrophils) ( WBC> 1,100 In prosthethic joints)
What is the difference between type I and type II primary osteoporosis
Both types most common in women
Type I: hormonal changes that lead to bone loss
Type II: metabolic changes that leads to bone not forming
What DEXA scan numbers relate to osteoporosis
O to -1 is normal
- 1 to -2.5 is osteopenia
- 2.5 or below is osteoporosis
What is a strain
What is a sprain
Strain Involves muscles or ligaments
Graded 1-4
Sprain involves ligaments
Graded 1-3
Grade 1 strain
Less than 10 percent muscle involved
Grade 2 strain
10-50 percent muscle involvement
Grade 3 strain
50-100 percent muscle involved
Grade 4 strain
100 percent of the muscle and fascia is disrupted
Grade1 sprain
Partial tear without instability
Grade2 sprain
Partial tear with laxity
Grade 3 sprain
Complete tear of the ligament
Is it more likely for a child with an open growth plate to sprain a joint or fracture a bone
No, salter Harris 1 are more common as the growth plates are weaker than the ligaments
(Opposite in adults)
Referral criteria for a Sprain/ strain
Chronic laxity
Severe Grade 2 and above
What is the difference between radiculopathy and myelopathy
Radiculopathy:
Disease of the spinal nerve roots and spinal nerves
Myelopathy:
Disease of the spinal cord
Where does the cauda equina start
After the conus medularis at L1-L2
Cauda equina causes what kind of paralysis ?
Paralysis without spasticity
Bilateral radicular saddle distribution S/s w/ loss of bowel and bladder control (s2-4) think what pathology
Cauda equina
What are the common causes of cervical radiculopathy in young vs old pts
Young: disk herniation
Old: osteophytes at the foramen
What is the Tx approach for cervical radiculopathy
Non-operative-
Anti-inflammatory and traction
Physical therapy
NO NARCOTICS, no manipulation
Operative-
Decompression +/- fusion
What is the AKA for Degenerative Disk Dz
Cervical spondylosis
Bone spurs w. Narrowing of disks
Pts with palmar paresthesias, decreased dexterity, and gait disturbances ( Tandem Walk)
Cervical spondylosis
What is Hoffmanns sign
Flicking the Middle DIP causes the thumb or first finger to flex involuntarily
What are the most common changes in the spine with cervical spondylosis
Osteophytes at C5-6 and C6-7
BIG BONE SPURS
With joint space narrowing
Tx approach to Cervical Spondylosis
NSAIDS
Doxepin or Amitriptyline (sleep)
PT
NOT NARCS
Operative- Decompress
What is the most common pathogen for discitus
Staph Aurus