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Jones et al: Evaluation of subchondral bone cysts in canine elbows with radiographic osteoarthritis secondary to elbow dysplasia
Veterinary Surgery 2, 2024

🔍 Key Findings Summary

  • Sample: 38 Labrador Retrievers (76 elbows)
  • SBCs (subchondral bone cysts):
    • Not found in elbows without OA
  • Increased number and size with OA severity:
    • Grade 1: median 3 SBCs
    • Grade 2: 9 SBCs
    • Grade 3: 20 SBCs (p < .001)
    • Larger SBCs in more severe OA (OR = 1.056, p = .012)
  • Locations: 62% humerus, 28% ulna, 10% radius
  • Sex and Age Effects:
    • Older dogs had larger SBCs (p = .013)
    • Female dogs had smaller SBCs (p = .002)
    • SBC number unrelated to age or sex

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← Articles

Jones et al: Evaluation of subchondral bone cysts in canine elbows with radiographic osteoarthritis secondary to elbow dysplasia
Veterinary Surgery 2, 2024

🔍 Key Findings Summary

  • Sample: 38 Labrador Retrievers (76 elbows)
  • SBCs (subchondral bone cysts):
    • Not found in elbows without OA
  • Increased number and size with OA severity:
    • Grade 1: median 3 SBCs
    • Grade 2: 9 SBCs
    • Grade 3: 20 SBCs (p < .001)
    • Larger SBCs in more severe OA (OR = 1.056, p = .012)
  • Locations: 62% humerus, 28% ulna, 10% radius
  • Sex and Age Effects:
    • Older dogs had larger SBCs (p = .013)
    • Female dogs had smaller SBCs (p = .002)
    • SBC number unrelated to age or sex

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Multiple Choice Questions on this study

In Jones 2024 et al., on elbow OA cysts, what best describes the presence of SBCs in radiographic OA grade 0 elbows?

A. SBCs were commonly found
B. Only large SBCs were found
C. SBCs were found in 50% of cases
D. No SBCs were detected
E. SBCs were inconclusive

Answer: No SBCs were detected

Explanation: SBCs were absent in elbows without radiographic signs of OA (grade 0).
In Jones 2024 et al., on elbow OA cysts, which joints were most commonly affected by SBCs?

A. Ulna
B. Radius
C. Humerus
D. Carpus
E. Scapula

Answer: Humerus

Explanation: 62% of SBCs were found in the humerus, making it the most affected site.
In Jones 2024 et al., on elbow OA cysts, what effect did female sex have on SBC size?

A. None
B. SBCs were larger
C. SBCs were more numerous
D. SBCs formed earlier
E. SBCs were smaller

Answer: SBCs were smaller

Explanation: Female dogs had smaller SBCs than males (OR = 0.931, p = .002).
In Jones 2024 et al., on elbow OA cysts, how was SBC prevalence related to osteoarthritis severity?

A. No relationship found
B. SBCs decreased with severity
C. Present only in mild cases
D. Proportional to OA severity
E. Found in normal elbows too

Answer: Proportional to OA severity

Explanation: SBC number and size increased with radiographic OA severity (p < .001 and p = .041 respectively).
In Jones 2024 et al., on elbow OA cysts, what factor was associated with **larger** SBCs?

A. Younger age
B. Female sex
C. Grade 1 OA
D. Older age
E. Smaller osteophyte size

Answer: Older age

Explanation: Older dogs had significantly larger SBCs than young dogs (OR = 1.054, p = .013).

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