scholarly journals DNM1 mutation status, sex, and sterilization status of a cohort of Labrador retrievers with and without cranial cruciate ligament rupture

2017 ◽  
Vol 4 (1) ◽  
Author(s):  
Kari J Ekenstedt ◽  
Katie M Minor ◽  
Aaron K Rendahl ◽  
Michael G Conzemius
Keyword(s):  
Cruciate Ligament ◽  
Cranial Cruciate Ligament ◽  
Mutation Status ◽  
Ligament Rupture ◽  
Cruciate Ligament Rupture ◽  
Labrador Retrievers ◽  
Cranial Cruciate Ligament Rupture

Effect of doxycycline on contra lateral canine cranial cruciate ligament rupture

2015 ◽  
Vol 28 (06) ◽  
pp. 371-378
Author(s):  
J. Sung ◽  
J. Barry ◽  
K. Hayashi ◽  
M. R. Edwards ◽  
D. J. F. von Pfeil
Keyword(s):  
Cruciate Ligament ◽  
Rank Test ◽  
Controlled Clinical Trial ◽  
Cranial Cruciate Ligament ◽  
Ligament Rupture ◽  
Cruciate Ligament Rupture ◽  
Group D ◽  
Labrador Retrievers ◽  
Cranial Cruciate Ligament Rupture

SummaryObjective: To evaluate whether doxycycline administered to dogs with unilateral cranial cruciate ligament rupture (Uni-CCLR) would decrease the risk of contralateral-CCLR (CoCCLR). To evaluate predictors for Co-CCLR survival. To evaluate if a predisposition of Labrador Retrievers to Co-CCLR exists when compared to other breeds.Methods: In this prospective randomized controlled clinical trial, 69 client-owned dogs with Uni-CCLR were randomly assigned to a doxycycline (group-D: 7.5 mg/kg PO BID x 6 weeks) or non-doxycycline (group-ND: negative control). Medical and imaging data, time from Uni- to Co-CCLR and to follow-up were recorded. Statistics included chi-squared test, logistic regression, Kaplan-Meier survival analysis, log rank test, survival curves, and frailty model (p <0.05).Results: This study included 32 dogs in group-D, and 37 dogs in group-ND. Median follow-up was 54.5 and 61 months, respectively. Contralateral CCLR occurred in 53.1% and 48.6% at medians of 20 and 11 months, respectively. Doxycycline did not significantly decrease the risk of Co-CCLR (p = 0.83). This risk was decreased by 14.2% with each year of age but increased with each increasing kilogram of body weight and each increasing degree of tibial plateau angle by 5.4% and 9.7%, respectively. Labrador Retrievers were not significantly predisposed (p = 0.37).Clinical significance: At the dose regimen investigated doxycycline does not decrease the risk for Co-CCLR.

scholarly journals Comparison of the Tibial Anatomical-Mechanical Axis Angle and Patellar Positions between Labrador Retrievers and Golden Retrievers with and without Cranial Cruciate Ligament Rupture

2020 ◽  
Vol 5 (2) ◽  
pp. 1-9
Author(s):  
Guenego L
Keyword(s):  
Tibial Plateau ◽  
Mechanical Axis ◽  
Cruciate Ligament ◽  
Control Group ◽  
Cranial Cruciate Ligament ◽  
Ligament Rupture ◽  
Cruciate Ligament Rupture ◽  
Significant Difference ◽  
Labrador Retrievers ◽  
Cranial Cruciate Ligament Rupture

This study investigated proximodistal and craniocaudal patellar positions and assessed these positions with the tibial anatomical-mechanical axis angle (AMA-angle), tibial plateau angle (TPA), relative tibial tuberosity width (rTTW), and Z-angle in Labrador Retrievers (LR) and Golden Retrievers (GR) with and without cranial cruciate ligament rupture (CCLR). Mediolateral radiographs were obtained from 2 groups. The affected group had a normal contralateral stifle measured at the time of unilateral surgically confirmed CCLR, which developed a subsequent contralateral CCLR (SC-CCLR; 40 dogs), and the control group (60 dogs aged >11 years) had normal stifles. In the SC-CCLR group, 95% of the tibial anatomical axes (AAs) were cranial (CR) to the patella, with a median (range) AMA-angle of 2.92° (1.65°-4.92°), while in the control group, 93% of the stifles had AAs caudal (CA) to or in the middle (M) of the patella, with a median (range) AMA-angle of 1.03° (0°-3.52°). The craniocaudal position of the patella was correlated statistically with the AMA-angles (median (range), 0.86° (0-1.61°), 1.87° (1.22-2.7°), and 2.97° (1.72-4.92°) in the CA, M, and CR positions, respectively, but not with other tibial measurements (p<0.0001). The patellar height did not differ between the groups (p<0.0001). The highly significant difference found in the AMA-angle and the craniocaudal patellar position between LR and GR with or without CCL injury suggest that craniocaudal angulation of the proximal tibia could influence the development of canine CCLR.

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.

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