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Vet Comp Orthop Traumatol 2024; 37(01): 023-029
DOI: 10.1055/s-0043-1771507
Original Research

Quantifying the Stress in Stress Radiographs to Determine Sufficient Laxity of the Coxofemoral Joint: A Canine Hip Dysplasia Cadaveric Study

Louis M.J. Vandekerckhove 
1   Department of Morphology, Imaging, Orthopedics, Rehabilitation and Nutrition, Faculty of Veterinary Medicine, Ghent University, Merelbeke, Belgium
,
Stijn Herregodts
2   Department of Physical Medicine and Orthopaedic Surgery, Ghent University, Ghent, Belgium
3   Department of Electrical Energy, Metal, Mechanical Construction and Systems, Ghent University, Ghent, Belgium
,
Jimmy H. Saunders   *
1   Department of Morphology, Imaging, Orthopedics, Rehabilitation and Nutrition, Faculty of Veterinary Medicine, Ghent University, Merelbeke, Belgium
,
Bart J. G. Broeckx    *
4   Department of Veterinary and Biosciences, Ghent University, Merelbeke, Belgium
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Abstract

Objective While it has been known for a long time that laxity in the hip joint is the primary cause of degenerative changes later on in canine hip dysplasia, limited data are available on the fundamental characteristics that define the procedure used to quantify this. The aim of this study was to evaluate the force–laxity relation to assess the repeatability of repeated cycles of stress on the hip joint and determine the force necessary tomeasure a sufficient proportion of laxity present in hip joints.

Materials and Methods Thirty-four canine cadavers underwent a radiographic protocol including stress radiographs with increasing force using the Vezzoni modified Badertscher distension measuring device (VMBDmD). Three dogs underwent five repeat examinations. The laxity index (LI) and osteoarthritis were scored.

Results and Conclusion The curves and the maximal LI (LImax) were not significantly influenced by osteoarthritis, weight, gender, and side. The position of the VMBDmD influenced the curve but not the LImax. The force–laxity curve itself and the LImax were repeatable, which indicated that it did not cause permanent damage to the joint and also confirmed the practicability of the procedure. Ninety percent of hip joints reached sufficient laxity at a force of 95.32 N, which is realistically achievable. Further studies are necessary before extrapolating these results to patients and to further enlighten the biomechanics of stress radiographs.

Keywords

canine hip dysplasia - VMBDD - laxity - force - fulcrum

Authors' Contribution

L.V. contributed to the conception, study design, acquisition of data, data analysis and interpretation. S.H. contributed to conception, study design. J.S. and B.B. contributed to the conception, study design, data analysis and interpretation. All authors drafted, revised, and approved the submitted manuscript and are publicly responsible for the relevant content.


* These authors contributed equally.




Publication History

Received: 06 December 2022

Accepted: 03 June 2023

Article published online:
23 August 2023

© 2023. Thieme. All rights reserved.

Georg Thieme Verlag KG
Rüdigerstraße 14, 70469 Stuttgart, Germany

 

  • References

  • 1 Henricson B, Norberg I, Olsson SE. On the etiology and pathogenesis of hip dysplasia: a comparative review. J Small Anim Pract 1966; 7 (11) 673-688
    CrossrefPubMedGoogle Scholar
  • 2 Smith GK, Gregor TP, Rhodes WH, Biery DN. Coxofemoral joint laxity from distraction radiography and its contemporaneous and prospective correlation with laxity, subjective score, and evidence of degenerative joint disease from conventional hip-extended radiography in dogs. Am J Vet Res 1993; 54 (07) 1021-1042
    PubMedGoogle Scholar
  • 3 Flückiger MA, Friedrich GA, Binder H. A radiographic stress technique for evaluation of coxofemoral joint laxity in dogs. Vet Surg 1999; 28 (01) 1-9
    CrossrefPubMedGoogle Scholar
  • 4 Farese JP, Todhunter RJ, Lust G, Williams AJ, Dykes NL. Dorsolateral subluxation of hip joints in dogs measured in a weight-bearing position with radiography and computed tomography. Vet Surg 1998; 27 (05) 393-405
    CrossrefPubMedGoogle Scholar
  • 5 Vezzoni A, Dravelli G, Corbari A. et al. Early diagnosis of canine hip dysplasia. Eur J Companion Anim Pract 2005; 15: 173-184
    PubMedGoogle Scholar
  • 6 Todhunter RJ, Bertram JE, Smith S. et al. Effect of dorsal hip loading, sedation, and general anesthesia on the dorsolateral subluxation score in dogs. Vet Surg 2003; 32 (03) 196-205
    CrossrefPubMedGoogle Scholar
  • 7 Smith GK. Canine hip dysplasia: pathogenesis, diagnosis, and genetic control. Vet Q 1998; 20 (1, Suppl 1): S22-S24
    CrossrefPubMedGoogle Scholar
  • 8 Broeckx BJG, Vezzoni A, Bogaerts E. et al. Comparison of three methods to quantify laxity in the canine hip joint. Vet Comp Orthop Traumatol 2018; 31 (01) 23-29
    Article in Thieme ConnectPubMedGoogle Scholar
  • 9 Bertal M, De Rycke L, Vezzoni A, Polis I, Saunders JH, Broeckx BJG. Technical repeatability and reproducibility of the stress radiographs performed with the Vezzoni-Modified Badertscher hip distension device. Vet Comp Orthop Traumatol 2019; 32 (01) 67-72
    Article in Thieme ConnectPubMedGoogle Scholar
  • 10 Bertal M, Vezzoni A, Van der Vekens E, Polis I, Saunders JH, Broeckx BJG. Analysis of a laxity index database and comparison with the Fédération Cynologique Internationale grades of this population. Vet Comp Orthop Traumatol 2021; 34 (02) 108-114
    Article in Thieme ConnectPubMedGoogle Scholar
  • 11 Vandekerckhove LMJ, Herregodts S, Saunders JH, Broeckx BJG. Development and validation of a device to measure the force applied to the coxofemoral joint during stress radiography for early diagnosis of canine hip dysplasia. Med Eng Phys 2023; 112: 103953
    CrossrefPubMedGoogle Scholar
  • 12 Bertal M, Vezzoni A, Houdellier B. et al. Intra- and inter-observer variability of measurements of the laxity index on stress radiographs performed with the Vezzoni-modified Badertscher hip distension device. Vet Comp Orthop Traumatol 2018; 31 (04) 246-251
    Article in Thieme ConnectPubMedGoogle Scholar
  • 13 Todhunter RJ, Garrison SJ, Jordan J. et al. Gene expression in hip soft tissues in incipient canine hip dysplasia and osteoarthritis. J Orthop Res 2019; 37 (02) 313-324
    CrossrefPubMedGoogle Scholar
  • 14 King MD. Etiopathogenesis of canine hip dysplasia, prevalence, and genetics. Vet Clin North Am Small Anim Pract 2017; 47 (04) 753-767
    CrossrefPubMedGoogle Scholar
  • 15 Gold RM, Gregor TP, Huck JL, McKelvie PJ, Smith GK. Effects of osteoarthritis on radiographic measures of laxity and congruence in hip joints of Labrador Retrievers. J Am Vet Med Assoc 2009; 234 (12) 1549-1554
    CrossrefPubMedGoogle Scholar
  • 16 Smith GK, LaFond E, Heyman SJ, Cofone MA, Gregor TP. Biomechanical characterization of passive laxity of the hip joint in dogs. Am J Vet Res 1997; 58 (10) 1078-1082
    PubMedGoogle Scholar
  • 17 Heyman SJ, Smith GK, Cofone MA. Biomechanical study of the effect of coxofemoral positioning on passive hip joint laxity in dogs. Am J Vet Res 1993; 54 (02) 210-215
    PubMedGoogle Scholar
  • 18 Guimarães CF, Gasperini L, Marques AP, Reis RL. The stiffness of living tissues and its implications for tissue engineering. Nat Rev Mater 2020; 5 (05) 351-370
    CrossrefPubMedGoogle Scholar
  • 19 Söhnel K, Rode C, de Lussanet MHE, Wagner H, Fischer MS, Andrada E. Limb dynamics in agility jumps of beginner and advanced dogs. J Exp Biol 2020; 223 (Pt 7): jeb202119
    CrossrefPubMedGoogle Scholar
  • 20 Leppänen MK, McKusick BC, Granholm MM, Westerholm FC, Tulamo R, Short CE. Clinical efficacy and safety of dexmedetomidine and buprenorphine, butorphanol or diazepam for canine hip radiography. J Small Anim Pract 2006; 47 (11) 663-669
    CrossrefPubMedGoogle Scholar
  • 21 Bozkan Z, Sarierler M. Influence of anesthesia on grading of canine hip dysplasia. Top Companion Anim Med 2019; 37: 100368
    CrossrefPubMedGoogle Scholar