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Vet Comp Orthop Traumatol 2010; 23(02): 81-86
DOI: 10.3415/VCOT-09-05-0057
Original Research
Schattauer GmbH

Macroscopic and microvascular blood supply of the canine common calcaneal tendon

P. J. Gilbert
1   Western College of Veterinary Medicine, Department Small Animal Clinical Sciences, Saskatoon, Saskatchewan, Canada
,
C. L. Shmon
1   Western College of Veterinary Medicine, Department Small Animal Clinical Sciences, Saskatoon, Saskatchewan, Canada
,
K. A. Linn
1   Western College of Veterinary Medicine, Department Small Animal Clinical Sciences, Saskatoon, Saskatchewan, Canada
,
B. Singh
2   Western College of Veterinary Medicine, Veterinary Biomedical Sciences, Saskatoon, Saskatchewan, Canada
› Author Affiliations
Further Information

Publication History

Received: 11 May 2009

Accepted: 28 February 2009

Publication Date:
19 December 2017 (online)

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Summary

Chronic tendinopathy injuries to the canine common calcaneal tendon are relatively common in large breed dogs and typically affect the distal portion of the tendon. In humans, poor blood supply, biomechanical faults, poor training methods and fluoroquinolone administration have all been linked with the development of Achilles tendinopathy. The most common sites for Achilles tendinopathy in humans seem to correspond with areas of poor blood supply within the tendon.

The aim of this study was to evaluate the blood supply of the canine common calcaneal (Achilles) tendon to determine if variations occur along the tendon. The null hypothesis was that there would be no difference in the microvascular blood supply at varying points along the tendon.

Paired pelvic limbs were collected from 12 large breed dog cadavers. A 50% barium sulphate and 50% saline solution was infused into the femoral artery of one limb from each dog and radiographs were taken to outline the blood supply to the common calcaneal tendon. Indian ink was infused into the contralateral limb. The common calcaneal tendon was removed, fixed and sectioned at 1 cm intervals, from calcaneal insertion to musculotendinous junction. The ink-filled arteries and arterioles in each section were counted. Radiographs revealed fine branches from the caudal saphenous artery entering the mid-body of the tendon along its cranial border. The musculotendinous junction had additional branches from the gastrocnemius muscles. Distally, vessels radiated proximally from the calcaneus 2 to 3 cm into the tendon. Mean total vessel counts at the insertion (138.54 ± SD 31.06) were significantly higher than all other sections (p <0.001). The mid-body had significantly lower total vessel counts. When the cross sectional area of the tendon was taken into account, only the insertion had a significantly higher mean vessel count/cm2 than the mid-body of the tendon. There were no other significant differences in mean vessel count/cm2.

Areas of poorer blood supply did not correspond with the most commonly reported site for chronic common calcanean tendinopathies, suggesting that inherent poor blood supply at the site of injury may not play a role in the pathogenesis. Atraumatic handling and minimal manipulation should be used during the surgical approach and debridement to preserve the remaining blood supply in ruptured tendons.

Keywords

Canine Achilles tendon - canine common calcaneal tendon - microscopic - tendon blood supply - macroscopic
 

  • References

  • 1 Hermanson JW, Evans HE.. The muscular system. In Evans HE. editor Miller's anatomy of the dog. Philadelphia: Saunders; 1993: 356-359 369–370.
    Google Scholar
  • 2 Reinke JD, Mughannam AJ, Owens JM.. Avulsion of the gastrocnemius tendon in 11 dogs. J Am Anim Hosp Assoc 1993; 29: 410-418.
    PubMedGoogle Scholar
  • 3 Bonneau NH, Olivieri M, Breton L.. Avulsion of the gastrocnemius tendon in the dog causing flexion of the hock and digits. J Am Anim Hosp Assoc 1983; 19: 717-722.
    PubMedGoogle Scholar
  • 4 Kramer M, Gerwing M, Michele U. et al. Ultra-sonographic examination of injuries to the Achilles tendon in dogs and cats. J Small Anim Pract 2001; 42: 531-535.
    CrossrefPubMedGoogle Scholar
  • 5 Meutstege FJ.. The classification of canine achilles tendon lesions. Vet Comp Orthop Traumatol 1993; 6: 53-55.
    Article in Thieme ConnectPubMedGoogle Scholar
  • 6 Nielsen C, Pluhar GE.. Outcome following surgical repair of Achilles tendon rupture and comparison between post-operative tibiotarsal immobilization methods in dogs – 28 cases (1997–2004). Vet Comp Orthop Traumatol 2006; 4: 246-249.
    Article in Thieme ConnectPubMedGoogle Scholar
  • 7 Jarvinen TAH, Kannus P, Maffuli N. et al. Achilles tendon disorders: etiology and epidemiology. Foot Ankle Clin N Am 2005; 10: 255-266.
    CrossrefPubMedGoogle Scholar
  • 8 Mafulli N, Kader D.. Tendinopathy of tendo achillis. J Bone Joint Surg Br 2002; 84: 1-8.
    PubMedGoogle Scholar
  • 9 Paavola M, Kannus P, Jarvinen TAH. et al. Current concepts review achilles tendinopathy. J Bone Joint Surg 2002; 84 A (11) 2062-2075.
    CrossrefPubMedGoogle Scholar
  • 10 Carr AJ, Norris SH.. The blood supply of the calcanean tendon. J Bone Joint Surg Br 1989; 71 B 100-101.
    PubMedGoogle Scholar
  • 11 Zantop T, Tillman B, Petersen W.. Quantitative assessment of blood vessels of the human Achilles tendon: an immunohistochemical cadaver Study. Arch Orthop Trauma Surg 2003; 123: 501-504.
    CrossrefPubMedGoogle Scholar
  • 12 Theobald P, Benjamin M, Nokes L. et al. Review of the vascularisation of the human Achilles tendon. Injury 2005; 36: 1267-1272.
    CrossrefPubMedGoogle Scholar
  • 13 Jopp I, Reese S.. Morphological and biomechanical studies on the common calcanean tendon in dogs. Vet Comp Orthop Traumatol 2009; 22: 119-124.
    Article in Thieme ConnectPubMedGoogle Scholar
  • 14 Welch JA, Boudrieau RJ, DeJardin LM. et al. The Intraosseous Blood Supply of the Canine Radius: Implications for Healing of Distal Fractures in Small Dogs. Vet Surg 1997; 26: 57-61.
    CrossrefPubMedGoogle Scholar
  • 15 Spalteholtz W.. Über das Durchsichtigmachen von menschlichen and tierischen - Präparaten und seine theoretischen Bedingungen. 2nd ed. Leipzig: S. Hirzel; 1911: 91.
    Google Scholar
  • 16 Sharma P, Maffuli N.. Current concepts review tendon injury and tendinopathy: healing and repair. J Bone Joint Surg 2005; 87 A 187-202.
    PubMedGoogle Scholar
  • 17 Ahmed IM, Lagopoulos M, McConnel P. et al. Blood supply of the achilles tendon. J Orthop Res 1998; 16: 591-596.
    CrossrefPubMedGoogle Scholar
  • 18 Schmidt-Rohlfing B, Graf J, Schneider U. et al. The blood supply of the Achilles tendon. Internat Orthop 1992; 16: 29-31.
    PubMedGoogle Scholar
  • 19 Wang JH-C, Iosifidis I M, Fu FH.. Biomechanicalb for tendinopathy. Clin Orthop Rel Res 2006; 443: 320-332.
    CrossrefPubMedGoogle Scholar
  • 20 Greene BL.. Physical therapist management of fluoroquinolone-induced Achilles tendinopathy. Phys Ther 2002; 82: 1224-1231.
    PubMedGoogle Scholar
  • 21 Williams RJ, Attia E, Wickiewicz TL. et al. The effect of ciprofloxacin on tendon, paratenon and capsular fibroblast metabolism. Am J Sports Med 2000; 28: 364-369.
    CrossrefPubMedGoogle Scholar
  • 22 Shakibaei M, de Souza P, van Sickle D. et al. Bio-mechanical changes in Achilles tendon from juvenile dogs after treatment with ciprofloxacin or feeding a magnesium deficient diet. Arch Toxicol 2001; 75: 369-374.
    CrossrefPubMedGoogle Scholar
  • 23 Hay Kraus BL, Kirker-Head CA, Kraus KH. et al. Vascular supply of the tendon of the equine deep digital flexor muscle within the digital sheath. Vet Surg 1995; 24: 102-111.
    CrossrefPubMedGoogle Scholar
  • 24 Crowson CL, Jann HW, Stein LE. et al. Quantitative effect of tenorrhaphy on intrinsic vasculature of the equine superficial digital flexor tendon. Am J Vet Res 2004; 65: 279-282.
    CrossrefPubMedGoogle Scholar