Arthrodesis of the proximal interphalangeal joint in the horse: a cyclic biomechanical comparison of two and three parallel cortical screws inserted in lag fashion.
Abstract: To compare the biomechanical cyclic fatigue properties of 2 and 3 parallel transarticular 5.5 mm cortical screws used in arthrodesis of the proximal interphalangeal (PIP) joint. Methods: Randomized block design, for horse, fixation method (2 versus three 5.5 mm cortical screws), side (right, left) and end (front, hind) in cadaveric equine limbs. Methods: Cadaveric adult equine fore- and hindlimbs (n=5 pairs each). Methods: Two parallel 5.5 mm cortical screws were inserted in lag fashion, transarticularly through the PIP joint in 1 limb of a pair, and in the contralateral limb, three 5.5 mm cortical screws were inserted in similar fashion. Constructs were then tested in 3-point bending in a dorsal-to-palmar (plantar) direction using a materials testing machine using a cyclic load of -500 to -3500 N at a rate of 6 Hz. Results: There was no significant difference in displacement at failure, force at failure or number of cycles between limbs. Forelimb constructs tended to fail at a greater mean displacement than hindlimb constructs but this difference was not significant (P=.06). There was no statistical difference in any tested biomechanical variable between left- and right-sided limbs. Conclusions: There was no significant difference in the number of cycles to failure for the 2 methods tested. Conclusions: Two 5.5 mm cortical screws inserted in parallel for PIP joint arthrodesis is surgically simpler, results in comparable biomechanical performance in the current model and should perform as well as three 5.5 mm screws under cyclic fatigue conditions.
Publication Date: 2010-03-10 PubMed ID: 20210951DOI: 10.1111/j.1532-950X.2009.00614.xGoogle Scholar: Lookup
The Equine Research Bank provides access to a large database of publicly available scientific literature. Inclusion in the Research Bank does not imply endorsement of study methods or findings by Mad Barn.
- Comparative Study
- Journal Article
- Research Support
- Non-U.S. Gov't
Summary
This research summary has been generated with artificial intelligence and may contain errors and omissions. Refer to the original study to confirm details provided. Submit correction.
This study investigates the cyclic fatigue properties of two compared to three screws used in a surgical procedure that fuses the proximal interphalangeal joint in horses. The research found that the number of screws used does not significantly impact the performance under cyclic fatigue conditions.
Objective
The research aimed to compare the biomechanical properties of using two versus three transarticular 5.5 mm cortical screws in the procedure of fusing (arthrodesis) the proximal interphalangeal (PIP) joint in horses. The screws were inserted in a cadaveric equine limbs model, and the cyclic fatigue conditions were simulated to evaluate the performance.
Methodology
- The researchers used a randomized block design, taking into account factors such as the fixation method (two or three screws), side (right or left), and end (front or hind).
- The subjects used for the study were cadaveric adult equine fore- and hindlimbs (a total of five pairs).
- In one limb of a pair, two parallel 5.5 mm cortical screws were inserted transarticularly through the PIP joint. In the contralateral limb, three 5.5 mm cortical screws were similarly inserted.
- These constructs were tested in a materials testing machine using a 3-point bending approach in a dorsal-to-palmar direction. The tests were conducted under a cyclic load of -500 to -3500 N at a rate of 6 Hz.
Results
- There was no significant difference in displacement at failure, force at failure, or number of cycles between limbs, irrespective of the number of screws used.
- Forelimb constructs were observed to fail at a greater mean displacement than hindlimb constructs, but this difference was not statistically significant.
- No significant difference was observed in any tested biomechanical variable between left- and right-sided limbs.
Conclusions
- The study concluded that the number of cycles to failure was not significantly different between the two methods tested.
- Using two 5.5 mm cortical screws for PIP joint arthrodesis was found to be surgically simpler and yielded comparable biomechanical performance in the model used for this study. Therefore, it should perform as well as three 5.5 mm screws under cyclic fatigue conditions.
Cite This Article
APA
Carmalt JL, Delaney L, Wilson DG.
(2010).
Arthrodesis of the proximal interphalangeal joint in the horse: a cyclic biomechanical comparison of two and three parallel cortical screws inserted in lag fashion.
Vet Surg, 39(1), 91-94.
https://doi.org/10.1111/j.1532-950X.2009.00614.x Publication
Researcher Affiliations
- Department of Large Animal Clinical Sciences, Western College of Veterinary Medicine, University of Saskatchewan, Saskatoon, SK, Canada. carmalt_vet@hotmail.com
MeSH Terms
- Animals
- Arthrodesis / instrumentation
- Arthrodesis / methods
- Arthrodesis / veterinary
- Biomechanical Phenomena / physiology
- Bone Screws / veterinary
- Compressive Strength / physiology
- Equipment Failure / veterinary
- Forelimb
- Hindlimb
- Horses / physiology
- Horses / surgery
- Toe Joint / physiology
- Toe Joint / surgery
Citations
This article has been cited 1 times.- Rocconi RA, Carmalt JL, Sampson SN, Elder SH, Gilbert EE. Comparison of limited-contact dynamic compression plate and locking compression plate constructs for proximal interphalangeal joint arthrodesis in the horse. Can Vet J 2015 Jun;56(6):615-9.
Use Nutrition Calculator
Check if your horse's diet meets their nutrition requirements with our easy-to-use tool Check your horse's diet with our easy-to-use tool
Talk to a Nutritionist
Discuss your horse's feeding plan with our experts over a free phone consultation Discuss your horse's diet over a phone consultation
Submit Diet Evaluation
Get a customized feeding plan for your horse formulated by our equine nutritionists Get a custom feeding plan formulated by our nutritionists
