← Articles

Vandekerckhove et al: Quantifying the Stress in Stress Radiographs to Determine Sufficient Laxity of the Coxofemoral Joint
Veterinary and Comparative Orthopedics and Traumatology 1, 2024

🔍 Key Findings Summary

  • Used VMBDmD to quantify hip laxity under increasing force in cadaveric dogs (n=34).
  • 90% of hips reached ≥90% of LImax at 95.32 N, defining this force as sufficient for subluxation.
  • LImax was not significantly influenced by osteoarthritis, weight, sex, or limb side.
  • Position of device (lever length) influenced rate of laxity acquisition, not final LImax.
  • LI curves were repeatable across 5 sessions, indicating elastic—not plastic—deformation.

Simini Surgery Review Podcast

How critical is this paper for crushing the Boards?

🚨 Must-know. I’d bet on seeing this.

📚 Useful background, not must-know.

💤 Skip it. Doubt it’ll ever show up.

Thanks for the feedback!
‍We'll keep fine-tuning the articles vault.
Oops — didn’t go through.
‍Mind trying that again?
← Articles

Vandekerckhove et al: Quantifying the Stress in Stress Radiographs to Determine Sufficient Laxity of the Coxofemoral Joint
Veterinary and Comparative Orthopedics and Traumatology 1, 2024

🔍 Key Findings Summary

  • Used VMBDmD to quantify hip laxity under increasing force in cadaveric dogs (n=34).
  • 90% of hips reached ≥90% of LImax at 95.32 N, defining this force as sufficient for subluxation.
  • LImax was not significantly influenced by osteoarthritis, weight, sex, or limb side.
  • Position of device (lever length) influenced rate of laxity acquisition, not final LImax.
  • LI curves were repeatable across 5 sessions, indicating elastic—not plastic—deformation.

Simini Surgery Review Podcast

Know What Matters in the Literature - and Why

We distill peer-reviewed surgical studies into clinically relevant summaries and
exam-style questions, so you can make informed decisions with confidence.

Free Access. No Spam. Just Smarter Surgical Learning

Multiple Choice Questions on this study

In Vandekerckhove 2024 et al., which factor **did not** significantly affect LImax?

A. Device position
B. Osteoarthritis
C. Body weight
D. Side
E. All of the above

Answer: All of the above

Explanation: None of these factors significantly affected LImax in the study.
In Vandekerckhove 2024 et al., what effect did lever arm length (device position) have on hip laxity measurement?

A. Altered LImax significantly
B. Affected body weight calculation
C. Changed LI% slope but not LImax
D. Introduced significant measurement error
E. Decreased signal-to-noise ratio

Answer: Changed LI% slope but not LImax

Explanation: Lever length (DH-VMBDmD/DCFJ-VMBDmD) affected how quickly LI% plateaued but not final LImax
In Vandekerckhove 2024 et al., what was the main biomechanical interpretation of repeated stress testing on hip joints?

A. Plastic deformation occurred over time
B. Elastic deformation occurred
C. Initial session caused irreversible change
D. Force threshold increased with each session
E. Deformation was random and non-repeatable

Answer: Elastic deformation occurred

Explanation: Repeat stress radiographs showed no lasting change in LImax—indicating elastic behavior
In Vandekerckhove 2024 et al., what value did the LImax range across all cadavers?

A. 0.15–0.53
B. 0.25–0.77
C. 0.31–0.68
D. 0.42–0.84
E. 0.30–0.70

Answer: 0.25–0.77

Explanation: Reported LImax ranged from 0.25 to 0.77, median 0.53
In Vandekerckhove 2024 et al., what force was required for 90% of hips to reach at least 90% of LImax?

A. 72.65 N
B. 85.00 N
C. 95.32 N
D. 102.50 N
E. 110.75 N

Answer: 95.32 N

Explanation: A force of 95.32 N was sufficient to produce ≥90% of LImax in 90% of hips.

Access the full library of surgical summaries and exam-style questions.

Get Instant Access

Educational content developed independently and supported by Simini.

The maker of Simini Protect Lavage.

Review More Key Summaries from this Veterinary and Comparative Orthopedics and Traumatology Journal Issue

Adrian

 et al: 

Use of Locking Plates Fixed with Cortical Screws for Pelvic Fracture Repair in 20 Cats

Caldeira

 et al: 

In Vitro Biomechanical Study of Femoral Neck Fracture Fixation with Two or Three Cannulated Screws in Dogs

Huerta

 et al: 

Evaluation of Osteotomy Healing in Boxer Dogs Undergoing Tibial Plateau Levelling Osteotomy Using Two Radiographic Scoring Systems

Kang

 et al: 

Biomechanical Comparison of Double 2.3-mm Headless Cannulated Self-Compression Screws and Single 3.5-mm Cortical Screw in Lag Fashion in a Canine Sacroiliac Luxation Model

Murphy

 et al: 

The Prevalence and Risk Factors of Contralateral Cranial Cruciate Ligament Rupture in Medium-to-Large (≥15kg) Breed Dogs 8 Years of Age or Older