Comparison of tibial plateau angle between clinically normal Greyhounds and Labrador Retrievers with and without rupture of the cranial cruciate ligament

2002 ◽  
Vol 221 (10) ◽  
pp. 1426-1429 ◽  
Author(s):  
Vicki L. Wilke ◽  
Michael G. Conzemius ◽  
Michael F. Besancon ◽  
Richard B. Evans ◽  
Matt Ritter
Keyword(s):  
Tibial Plateau ◽  
Cruciate Ligament ◽  
Cranial Cruciate Ligament ◽  
Clinically Normal ◽  
Labrador Retrievers

scholarly journals Comparison of the proximal tibial angles between Labrador Retrievers and other dog breeds with and without cranial cruciate ligament rupture

2015 ◽  
Vol 67 (5) ◽  
pp. 1254-1262 ◽  
Author(s):  
A. F. D. P. Arruda ◽  
L. A. L. Muzzi ◽  
R. A. L. Muzzi ◽  
A. C. C. Lacreta Júnior ◽  
G. Oberlender ◽  
...  
Keyword(s):  
Tibial Plateau ◽  
Proximal Tibia ◽  
Cruciate Ligament ◽  
Contact Point ◽  
Patellar Ligament ◽  
Cranial Cruciate Ligament ◽  
Insertion Angle ◽  
Stifle Joint ◽  
Significant Difference ◽  
Labrador Retrievers

ABSTRACTThe influence of the proximal tibia conformation in the rupture of the cranial cruciate ligament (CCL) in dogs is still controversial, especially in Labrador Retrievers. The aim of this study was to compare the angles of the proximal tibia between Labrador Retrievers and other large breeds of dogs, both groups with and without CCL rupture. Radiographic images of 64 stifle joints were obtained and divided into four groups of 16 images. Group 1 consisted of Labrador dogs without orthopedic disorders, group 2 consisted of Labrador dogs with CCL rupture, group 3 consisted of dogs of various large breeds without orthopedic disorders, and group 4 consisted of dogs of various large breeds with CCL rupture. The radiographs were performed in mediolateral projection with the stifle joint positioned at an approximate angle of 135°. The tibial plateau angle showed an overall average of 22.17°±4.20°, and there was no statistically significant difference between the groups. The patellar ligament angle in relation to the tibial plateau had a mean of 103°±4.20°, and there was a significant difference between groups 1 and 4. The patellar ligament angle in relation to the common tangent at the tibiofemoral contact point showed an average of 99.06°±6.08°, and there was no difference between the groups. The patellar ligament insertion angle had an overall average of 51.45°±5.06°, and there was a significant difference between the two groups of normal dogs and two groups of ruptured dogs. In conclusion, the tibial plateau angle, the patellar ligament angles and the patellar ligament insertion angle do not seem to be predisposing factors for rupture of the CCL in Labrador Retriever dogs. In general, there seems to be no relationship between the angles of the proximal tibia and the CCL rupture in dogs.

Tibial plateau angle in four common canine breeds with cranial cruciate ligament rupture, and its relationship to meniscal tears

2008 ◽  
Vol 21 (02) ◽  
pp. 125-128 ◽  
Author(s):  
D. B. Fox ◽  
J. L. Cook ◽  
D. B. Guastella
Keyword(s):  
Tibial Plateau ◽  
Cruciate Ligament ◽  
The Other ◽  
Meniscal Injury ◽  
Meniscal Tears ◽  
German Shepherd ◽  
Cranial Cruciate Ligament ◽  
Time Of Surgery ◽  
Cranial Cruciate Ligament Disease ◽  
Labrador Retrievers

Summary Objectives: To compare tibial plateau angle (TPA) among Labrador Retrievers, Rottweilers, Boxers, and German Shepherd Dogs that had undergone tibial plateau leveling osteotomies (TPLO) for cranial cruciate ligament disease, and to determine if higher TPAs are associated with increased risk for concurrent meniscal injury. Methods: This was a retrospective study including 275 client-owned dogs of one of the four aforementioned breeds that received TPLO radiographs between 1999 and 2005 prior to undergoing the TPLO procedure. The TPA measured by the original surgeon was compared among four breeds and analyzed with respect to presence or absence of meniscal injury diagnosed via arthroscopy or arthrotomy at the time of surgery. Results: Labrador Retrievers, Rottweilers, Boxers, and German Shepherd Dogs had mean TPAs of 25.9°, 26.2°, 25.9°, and 28.2°, respectively. The TPA of German Shepherd Dogs was significantly higher than that of the other breeds of dogs examined. TPA higher than the mean for dogs in this study did not significantly increase the risk for concurrent meniscal injury. Clinical significance: German Shepherd Dogs with cranial cruciate ligament disease had a significantly higher TPA compared to the other breeds examined. Higher TPA did not increase the likelihood of meniscal tears in this study. However, several variables that were not assessed, including the degree of cranial cruciate ligament integrity at the time of surgery and the time between original CrCL deficiency and surgical assessment, could have affected this analysis.

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.

Conformation of the proximal tibia and cranial cruciate ligament disease in small breed dogs

2017 ◽  
Vol 30 (03) ◽  
pp. 178-183 ◽  
Author(s):  
Michal Kyllar ◽  
Duncan Midgley ◽  
Martin Owen ◽  
Jan Janovec
Keyword(s):  
Body Weight ◽  
Clinical Significance ◽  
Tibial Plateau ◽  
Proximal Tibia ◽  
Cruciate Ligament ◽  
Tibial Tuberosity ◽  
Cranial Cruciate Ligament ◽  
Relative Body Weight ◽  
Cranial Cruciate Ligament Disease ◽  
Small Breed

SummaryObjectives: To investigate the conformation of the proximal tibia in small breed dogs with and without cranial cruciate ligament disease (CCLD) and to identify morphologic abnormalities that may predispose to development of CCLD.Methods: Mediolateral radiographs of the entire tibia of dogs <15 kg with surgically confirmed CCLD were retrospectively evaluated. Proximal tibial width (PTW), tibial plateau length (TPL), tibial plateau angle as described by Slocum and Slocum (sTPA), proximal tibial tuberosity angle (PTTA), tibial plateau angle as described by Inauen and colleagues (nTPA), and diaphyseal tibial width (DTW) were measured. The same variables were obtained from mediolateral radiographs of the entire tibia of dogs <15 kg without CCLD. In addition, a quotient nTPA/ PTW, relative tibial tuberosity width (rTTW), and relative body weight (rBW) were calculated for each dog. Independent two-sample t-test (p = 0.05) was used to compare mean ± SD of all measured variables between the two groups.Results: Gender, age, and weight mean ± SD were not significantly different between the two groups of dogs (p <0.05). Dogs with CCLD had significantly greater sTPA (p = 0.015) and rBW (p = 0.016).Clinical significance: In dogs of small breeds, a combination of an excessively steep tibial plateau and an increased relative body weight may predispose to early CCLD development. The slope of the tibial plateau was found to be caused by an abnormal caudal angulation of the proximal tibia, a phenomenon previously associated with CCLD development in small breed dogs in individual cases.

scholarly journals Comparison of Tibial Anatomical-mechanical Axis Angles and Patellar Positions Between Tibial Plateau Levelling Osteotomy (TPLO) and Modified Cranial Closing Wedge Osteotomy (AMA-Based CCWO) for the Treatment of Cranial Cruciate Ligament Disease in Large Dogs With Tibial Plateau Slopes Greater Than 30° and Clinically Normal Labradors Retrievers

2021 ◽  
Author(s):  
Laurent Guénégo ◽  
Aldo Vezzoni ◽  
Luca Vezzoni
Keyword(s):  
Tibial Plateau ◽  
Mechanical Axis ◽  
Cruciate Ligament ◽  
Patellar Height ◽  
Patellar Ligament ◽  
Wedge Osteotomy ◽  
Control Group ◽  
Closing Wedge Osteotomy ◽  
Clinically Normal ◽  
Closing Wedge

Abstract Background: The objective of this study was to evaluate tibial anatomical-mechanical axis angles (AMA-angles) and proximodistal and craniocaudal patellar positions following tibial plateau levelling osteotomy (TPLO) and AMA-based modified cranial closing wedge osteotomy (CCWO) in large dogs with tibial plateau angle (TPA) >30°, to compare these postoperative positions with those of a control group of healthy normal dogs, and to assess which procedure yields postoperative morphology of the tibiae and stifles that is most consistent with that of the unaffected group. This study also investigated whether the occurrence of patellar ligament thickening (PLT), which is commonly observed two months postoperatively after TPLO, is associated with misplacement of the osteotomy. A total of 120 dogs weighing more than 20 kg, 40 of which were control animals, were enrolled in this retrospective study. Stifles were radiographically evaluated preoperatively and postoperatively on the side with CCLR and on the healthy contralateral side and compared with clinically normal stifles. PLT was reassessed after two months.Results: Significant decreases in median patellar height ratio were found after both procedures (TPLO 0.24 (0.05–0.8); CCWO 0.22 (0.05–0.4)). The postoperative craniocaudal patellar position and the median AMA angle differed significantly among the groups (P=0.000) (TPLO 87.5% caudal to the AA and 3.12° (0.76–6.98°); CCWO 100% cranial to the AA and 0° (-1.34–0.65°); control group 5% caudal to the AA and 0.99° (0–3.39°)).At 8 weeks, PLT grade differed significantly in the two operated groups (P=0.000) (TPLO 40% 0–2, 20% 2–4, 40% >4; CCWO 98.8% 0).Conclusions: TPLO and AMA-based CCWO are associated with significant decreases in patellar height; however, the PLT results two months postoperatively differed between the two groups; the decrease in patellar height and PLT were independent of osteotomy position in the TPLO group. Compared to TPLO, CCWO results in reduced postoperative AMA angles and craniocaudal patellar positions that more closely resemble those of unaffected dogs, suggesting that the CCWO procedure allows us to better correct the caudal bowing of the proximal tibia that is often associated with deficient stifles in large dogs with TPA >30°.

Reducing susceptibility artefacts in magnetic resonance images of the canine stifle following surgery for cranial cruciate ligament deficiency

2012 ◽  
Vol 25 (06) ◽  
pp. 488-497 ◽  
Author(s):  
J. Grierson ◽  
C. R. Lamb ◽  
F. H. David
Keyword(s):  
Magnetic Resonance ◽  
Tibial Plateau ◽  
Cruciate Ligament ◽  
Magnetic Resonance Images ◽  
Proton Density ◽  
Mr Images ◽  
Cranial Cruciate Ligament ◽  
Metallic Implants ◽  
Image Ranking ◽  
Canine Stifle

SummaryBackground: Magnetic resonance (MR) images of the postoperative canine stifle are adversely affected by susceptibility artefacts associated with metallic implants.Objectives: To determine empirically to what extent susceptibility artefacts could be reduced by modifications to MR technique.Methods: Three cadaveric limbs with a tibial plateau levelling osteotomy (TPLO), tibial tuberosity advancement (TTA), or extra-capsular stabilization (ECS) implant, respectively, were imaged at 1.5T. Series of proton density and T2-weighted images were acquired with different combinations of frequency-encoding gradient (FEG) direction and polarity, stifle flexion or extension, echo spacing (ES), and readout bandwidth (ROBW), and ranked. The highest rank (a rank of 1) corresponded to the smallest artefact.Results: Image ranking was affected by FEG polarity (p = 0.005), stifle flexion (p = 0.01), and ROBW (p = 0.0001). For TPLO and TTA implants, the highest ranked images were obtained with the stifle flexed, lateromedial FEG, and medial polarity for dorsal images, and craniocaudal FEG and caudal polarity for sagittal images. For the ECS implant, the highest ranked images were obtained with the stifle extended, a proximodistal FEG and proximal polarity for dorsal images, and craniocaudal FEG and cranial polarity for sagittal images.Clinical significance: Susceptibility artefacts in MR images of postoperative canine stifles do not preclude clinical evaluation of joints with ECS or TTA implants.Part of this study was presented at the Annual Meeting of the American College of Veterinary Radiology, Albuquerque, NM, October 2011.

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.

Extracapsular articulating implant to treat cranial cruciate ligament disease in a dog with multiple myeloma

2019 ◽  
Vol 7 (2) ◽  
pp. e000767
Author(s):  
Eloise Elisabeth Lhuillery ◽  
Philip Georg Witte
Keyword(s):  
Multiple Myeloma ◽  
Medical Treatment ◽  
Range Of Motion ◽  
Tibial Plateau ◽  
Cruciate Ligament ◽  
Cranial Cruciate Ligament ◽  
Mild Reduction ◽  
Cranial Cruciate Ligament Disease ◽  
Hindlimb Lameness ◽  
Malignant Neoplasia

An 11-year-old Border collie was presented for left hindlimb lameness associated with cranial cruciate ligament disease. The history included right tibial plateau levelling osteotomy performed approximately two years previously, with a subjectively good outcome. Multiple myeloma had been diagnosed approximately two months before presentation of the left hindlimb lameness. Medical treatment of multiple myeloma included glucocorticoids (prednisolone) and melphalan. Stabilisation of the left stifle was performed with the Simitri Stable in Stride extracapsular articulating implant. The dog demonstrated weightbearing on the operated limb within 24 hours following surgery. Re-examination six weeks following surgery revealed mild left hindlimb lameness, no resentment to manipulation of the left stifle, no cranial tibial thrust and a mild reduction in the range of motion. Hindlimb function was affected by various neurological events considered secondary to the malignant neoplasia; however, left stifle function was good until euthanasia 11 months following surgery.

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