Ex vivo mechanical properties of a 2.5‐mm bone anchor for treatment of cranial cruciate ligament rupture in toy breed dogs

2020 ◽  
Vol 49 (4) ◽  
pp. 736-740
Author(s):  
Rodrigo Y. Roca ◽  
Aliisa Peura ◽  
Michael P. Kowaleski ◽  
Mallory T. Watson ◽  
Matin Lendhey ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Ex Vivo ◽  
Cruciate Ligament ◽  
Bone Anchor ◽  
Cranial Cruciate Ligament ◽  
Ligament Rupture ◽  
Cruciate Ligament Rupture ◽  
Cranial Cruciate Ligament Rupture

Effect of Suture Type on Stifle Joint Biomechanics After Extra-Articular Repair of Cranial Cruciate Ligament Transection in the Dog

1991 ◽  
Vol 4 (04) ◽  
pp. 144-149 ◽  
Author(s):  
M. S. Bauer ◽  
W. E. Blevins ◽  
W. R. Widmer ◽  
Jaqueline Davidson ◽  
S. W. Aiken ◽  
...  
Keyword(s):  
Cruciate Ligament ◽  
Tibial Tuberosity ◽  
Cranial Cruciate Ligament ◽  
Stifle Joint ◽  
Ligament Rupture ◽  
Cruciate Ligament Rupture ◽  
Before And After ◽  
Joint Biomechanics ◽  
Cranial Cruciate Ligament Rupture

SummaryThe effect of two suture types, monofilament polybutester and braided polyester, on stifle joint biomechanics after extra-articular repair of cranial cruciate ligament rupture was evaluated by analysis of the instant centre of motion. The instant centres of motion and resulting velocity vectors were determined radiographically on both stifles of eight fresh canine cadavers before and after cranial cruciate ligament transection. After ligament transection, all 16 stifles were repaired with an extra-articular technique utilizing a double strand of suture placed between the lateral fabella and the tibial tuberosity. One stifle on each cadaver was repaired with each suture type. The instant centres of motion and resulting velocity vectors were re-evaluated post repair. All stifles had normal instant centres of motion prior to transection of the cranial cruciate ligament. Neither ligament transection nor extra-articular repair with either suture type resulted in an abnormal change in the instant centre of motion.

scholarly journals Use of the modified Insall Salvati method for determination of vertical patellar position in dogs with and without cranial cruciate ligament rupture considering the morphology of the cranio-proximal tibia

2012 ◽  
Vol 81 (4) ◽  
pp. 403-407 ◽  
Author(s):  
Dávid Kňazovický ◽  
Valent Ledecký ◽  
Marián Hluchý ◽  
Marek Ďurej
Keyword(s):  
Cruciate Ligament ◽  
Patellar Ligament ◽  
Insertion Point ◽  
Cranial Cruciate Ligament ◽  
Ligament Rupture ◽  
Cruciate Ligament Rupture ◽  
Significant Difference ◽  
Healthy Dogs ◽  
Cranial Cruciate Ligament Rupture

The aim of this study was to evaluate if the modified Insall Salvati (IS) method can be applied for the canine patient despite differences of proximal tibial morphology, and if such potential differences are also seen in dogs with cranial cruciate ligament rupture. Insall Salvati method is a simple and convenient method for determination of the vertical position of patella, by dividing the length of patella by length of the patellar ligament. The influence of the variable proximal tibial morphology on the modified (IS) index was measured and the value of modified IS index in healthy dogs (n = 25) was compared with dogs with cranial cruciate ligament rupture (n = 26). Medio-lateral radiographs of 102 stifles were evaluated. Patellar ligament length (PLL), patellar length (PL), modified IS ratio and the height of insertion point of patellar ligament on tibial tuberosity were measured. Data of the IS ratio were compared with the value of the height of the insertion point with no significant difference (P = 0.36). There was no significant difference (P = 0.07) in the PLL:PL ratio between dogs affected or unaffected with cranial cruciate ligament rupture. Based on the results of this study we can conclude that the morphology of the cranio-proximal tibia and the height of insertion point of the patellar ligament do not have an influence on the value of the modified IS index both in healthy dogs and in dogs with cranial cruciate ligament rupture.

Measurement of the tibial plateau angle in cats with and without cranial cruciate ligament rupture

2009 ◽  
Vol 22 (02) ◽  
pp. 83-86 ◽  
Author(s):  
S. Reese ◽  
K. Lorinson ◽  
D. Lorinson ◽  
E. Schnabl
Keyword(s):  
Tibial Plateau ◽  
Cruciate Ligament ◽  
Degenerative Joint Disease ◽  
Joint Disease ◽  
Cranial Cruciate Ligament ◽  
Ligament Rupture ◽  
Cruciate Ligament Rupture ◽  
Inter Observer Variability ◽  
Measurement Results ◽  
Cranial Cruciate Ligament Rupture

SummaryThe objective of the present study was to determine the tibial plateau angle (TPA) in cats without stifle pathology and to compare it with cats suffering from an isolated cranial cruciate ligament rupture. Mediolateral radiographs of the stifle were taken and the tibial plateau angle was measured based on the method previously described by Slocum and Devine (1983) for dogs. Three observers with different levels of experience evaluated the radiographs of all of the cats in this study. The mean tibial plateau angle measured by all three observers in the cats with a rupture of the cranial cruciate ligament (CCL) was 3.1° greater than in cats without stifle pathology. Neither gender, age, body weight nor degenerative joint disease had an influence on measurement results. The authors found an inter-observer variability of ± 5.3°. Hence it can be concluded that cats with cranial cruciate ligament rupture have a greater TPA, and this at least lends some credence to the possibility of higher TPA being a predis-posing factor for cruciate injury in this species.

Stromelysin Activity in Canine Cranial Cruciate Ligament Rupture

1999 ◽  
Vol 12 (04) ◽  
pp. 159-165 ◽  
Author(s):  
Nadja Sigrist ◽  
A. Busato ◽  
Brigitte von Rechenberg ◽  
P. Schawalder ◽  
D. Spreng
Keyword(s):  
Articular Cartilage ◽  
Synovial Membrane ◽  
Cruciate Ligament ◽  
Cartilage Explants ◽  
Control Groups ◽  
Cranial Cruciate Ligament ◽  
Ligament Rupture ◽  
Cruciate Ligament Rupture ◽  
Explant Cultures ◽  
Cranial Cruciate Ligament Rupture

SummaryThe goal of our study was to compare values of stromelysin activity in stifle joint tissues, from dogs with osteoarthritis, secondary to naturally acquired cranial cruciate ligament (CCL) rupture and from a control population.Twenty four dogs (CCL group) with osteoarthritis (OA), secondary to CCL rupture, were evaluated. The control groups consisted of 22 beagles (control #1) and 14 dogs (control #2) without CCL rupture. Articular cartilage, synovial membrane and CCL tissue specimens were harvested during operations in the CCL group and immediately following euthanasia in the control groups. The specimens were submitted for routine histology and for explant tissue cultures.Stromelysin activity was measured in the supernatant of explanted cultures. The results of stromelysin concentrations were reported as mean ± STD and compared to histological cartilage degeneration, synovial membrane inflammation and ligament changes. Stromelysin activity in cartilage explants of the CCL group (70 ± 82.5 U/g) was significantly higher when compared to the control #1 (4.2 ± 6.3 U/g) and control #2 (15 ±10 U/g) groups. The synovial membrane explant cultures of the CCL group produced less stromelysin compared to the control group. Whereas ligament cultures showed a tendency toward higher activity of stromelysin when compared to the control groups. An association between the severity of histological OA changes in the cartilage and stromelysin activity in cartilage explants was demonstrated. We conclude that dogs with OA, secondary to naturally acquired CCL rupture, release higher stromelysin levels in articular cartilage and cranial cruciate ligament explant cultures when compared to the controls. Our results indicate that stromelysin production in articular cartilage is related to the severity of OA.Stromelysin, one of the major metalloproteinases degrades articular cartilage mainly by cleavage of proteoglycans. Increased levels of stromelysin could be demonstrated in cartilage of stifle joints from dogs with naturally acquired cranial cruciate ligament rupture using a radioimmunoassay. There was an indication in this study that the activity of stromelysin is associated with the severity of osteoarthritic changes.Presented in part at the European College of Veterinary Surgeons Annual Scientific Meeting, Pörtschach-Austria, June 1998.

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