Purulence
Calor
Rubor
Tumor
Dolor
100
Most common pathogen for Osteomyelitis?
Bonus* What is the MC pathogen if they stepped on a nail with their tennis shoe on?
Staphylococcus aureus
Bonus* Pseudomonas aeruginosa
100
What is ONE possible location of Fournier’s Gangrene?
Perineal, genital, or perianal area
100
What are the MC pathogens for viral myositis?
Influenza A & B, Enterovirus
100
What is the difference in location of Osteosarcoma and Ewing?
Osteosarcoma is at the growth plates and Ewing in mid long bone
100
What is the most common benign bone tumor?
Osteochondroma
200
How long is the initial antibiotic treatment course for Osteomyelitis? And what would you give for foreign body implant as the source?
4-6 wk IV, Vanco (or Nafcillin) + Rifampin
200
What laboratory tests would you want to order for a suspected diagnosis of necrotizing fasciitis? Name at least 4, there are 8.
CBC, CMP, lactate, inflammatory markers (ESR and CRP), venous blood gas, blood cultures, wound cultures
200
What is the clinical presentation of Viral Myositis?
(often in children) myalgia, fever, anorexia + URI symptoms
200
A patient presents with b-symptoms and mid shaft pain what kind of malignant cancer is this?
Ewing
200
14 y/o boy with thigh pain which is aggravated at night and alleviated 20 minutes after administration of an NSAID, what is the most likely diagnosis?
Osteoid Osteoma
300
A 70y M with stage 4 DM foot ulcer on R foot, has a fever, chills for 24 hours. R foot is red, warm, tender, and draining pus. Considering the most likely Dx, what is the most sensitive imaging to see the extent of bone and tissue damage?
MRI
300
What is the treatment for Clostridial myonecrosis?
Surgical debridement, possible amputation, antibiotics (pip-tazo or ticarcillin-clavulanate, plus clindamycin, could also use carbapenems), supportive care (IV fluids, pressors)
300
What is the most dangerous form of acute arthritis? Why?
Septic arthritis (Medical emergency!) Can rapidly destroy the joint
300
A 16 yr old male pt comes in will in with unilateral R knee and thigh pain and swelling. Pain is worse at night and is associated with night sweats. What is the diagnosis based on these symptoms and the following image?
Osteosarcoma
300
What is the definitive diagnostic test for Osteochondroma?
Bone Biopsy
400
What are the 3 mechanisms of microbial spread for an osteomyelitis infection?
Hematogenous, Contiguous focus, and associated with vascular insufficiency
400
What are the two ways Clostridial myonecrosis can develop?
An area of trauma or hematogenously from the GI tract with muscle seeding
400
What is the clinical presentation of septic gonococcal arthritis in the “later/next phase”?
migratory polyarthralgia, tenosynovitis, pustular lesions
400
What is the most concerning symptom of Osteosarcoma cancer?
a. Pain and swelling that is worse at night
b. Weight loss of 2 lb in the last month
c. Pain on the anterior surface of both knees
d. Weight gain of 5 lbs in the last year
a. Pain and swelling that is worse at nigh
400
What diagnosis can be made based upon this X-ray?
Osteochondroma