scholarly journals Proximodistal and caudocranial position of the insertion of the patellar ligament on the tibial tuberosity and patellar ligament length of normal stifles and stifles with grade II medial patellar luxation in small‐breed dogs

2021 ◽  
Author(s):  
Liene Feldmane ◽  
Lars F. H. Theyse
Keyword(s):  
Tibial Tuberosity ◽  
Ligament Length ◽  
Patellar Ligament ◽  
Grade Ii ◽  
Small Breed

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.

Tibial Tuberosity Transposition Fixation with a Locking Plate during Medial Patellar Luxation Surgery: An Ex Vivo Mechanical Study

2021 ◽  
Author(s):  
Esa V. Eskelinen ◽  
Ari P. Suhonen ◽  
Juha V. Virolainen ◽  
William D. Liska
Keyword(s):  
Phase I ◽  
Phase Ii ◽  
Locking Plate ◽  
Ex Vivo ◽  
Tibial Tuberosity ◽  
Tension Band ◽  
Patellar Ligament ◽  
Raccoon Dog ◽  
Tension Band Wire ◽  
Lower Load

Abstract Objectives The purpose of this study was to compare the load at failure, stiffness and mode of failure between three types of tibial tuberosity transposition fixation techniques: (a) pin and figure-8 tension band wire (Pin-TBW), (b) locking plate with pin and a tension band wire (Plate-Pin-TBW) and (c) locking plate with a pin (Plate-Pin). Methods Six pairs of raccoon dog cadaveric tibiae were tested in Phase I Pin-TBW versus Plate-Pin-TBW and seven pairs in Phase II Plate-Pin-TBW versus Plate-Pin. One limb of each pair was randomly assigned to one of two groups for each phase. A tensile force was applied to the patellar ligament until construct failure. Results Pin-TBW (342N ± 54.7N) failed at a lower load than Plate-Pin-TBW (469N ± 77.3N), p = 0.00748, with all Pin-TBW failing by fracture and the majority of Plate-Pin-TBW failing by rupture of patellar ligament. Pin-TBW group Phase I, normalized with Plate-Pin-TBW Phase I, failed at a lower load than Plate-Pin group Phase II, normalized with Plate-Pin-TBW Phase II, p = 0.00467. There was no significant difference in mean load at failure, stiffness or mode at failure between the groups in the Phase II study. Clinical Significance Although ex vivo mechanical testing does not replicate the postoperative live dog or cat, these results demonstrate lower construct strength of the Pin-TBW construct compared with the Plate-Pin construct in the raccoon dog cadaver model.

scholarly journals Tibial Plateau Leveling Following Tibial Tuberosity Advancement: A Case Series

2022 ◽  
Vol 9 (1) ◽  
pp. 16
Author(s):  
Daniele Serrani ◽  
Pierre Paul Picavet ◽  
Juan Marti ◽  
Bernard Bouvy ◽  
Marc Balligand ◽  
...  
Keyword(s):  
Tibial Plateau ◽  
Case Series ◽  
Major Complication ◽  
Tibial Tuberosity ◽  
Patellar Ligament ◽  
Short Term ◽  
Long Term Follow Up ◽  
Persistent Instability

Persistent stifle instability is a recognized complication following tibial tuberosity advancement techniques (TTAT). The aim of this study is to report the feasibility and outcome of tibial plateau leveling techniques (TPLT) to treat dogs with persistent lameness, suspected to be secondary to persistent stifle instability, following (TTAT). Medical records of dogs presented for persistent lameness after TTAT were reviewed. Preoperative data included orthopedic examination, lameness score and radiographs. Inclusion criteria included performance of a surgery to address persistent lameness and suspected instability. Short-term follow up data included orthopedic examination and radiographs of the stifle. Long-term follow up was based on postoperative Liverpool Osteoarthritis in Dogs (LOAD) questionnaire. Seven dogs were included in the study. Mean subjective preoperative lameness score was 3 ± 1.53. Mean preoperative patellar ligament angle relative to the tibial plateau (PLATP) was 94° and mean tibial plateau angle (TPA) was 28°. Six dogs had tibial plateau leveling osteotomy and one had modified cranial closing wedge ostectomy. Mean postoperative PLATP was 79° and mean TPA was 5°. Mean subjective lameness score at follow up was 0.57 ± 0.49. Minor complications were present in 2 dogs and major complication in 1 dog. Mean LOAD questionnaire score was 6.6/52. TPLT can be performed after TTAT and may improve clinical function and stability in these cases in which persistent instability is suspected.

Radiographic evaluation of patellar ligament length after tibial plateau leveling osteotomy in dogs

2019 ◽  
Vol 80 (6) ◽  
pp. 607-612
Author(s):  
Maureen R. Jay ◽  
John S. Mattoon ◽  
Peter J. Gilbert ◽  
Ty T. Tanaka ◽  
Brenda L. Beaty
Keyword(s):  
Tibial Plateau ◽  
Ligament Length ◽  
Patellar Ligament ◽  
Radiographic Evaluation

Patellar luxation in dogs

2019 ◽  
Vol 24 (6) ◽  
pp. 293-298
Author(s):  
Paula Lopez de la oliva Cases ◽  
James Grierson
Keyword(s):  
Surgical Intervention ◽  
Tibial Tuberosity ◽  
Small Breed

Patellar luxation is one of the most common orthopaedic diseases in dogs. Medial luxation occurs more frequently than lateral, and females and small-breed dogs are overrepresented. Diagnosis can be achieved with a simple orthopaedic examination, but the use of imaging is essential to determine what deformities have caused the patellar luxation and therefore aid planning surgical intervention. Surgery is recommended in patients that are clinically affected and is normally a combination of trochleoplasty, tibial tuberosity transposition and imbrication techniques. The prognosis is generally favourable following surgery, although surgery does not prevent the progression of osteoarthritis.

Radiographic and ultrasonographic changes of the patellar ligament following tibial tuberosity advancement in 25 dogs

2014 ◽  
Vol 27 (03) ◽  
pp. 216-221 ◽  
Author(s):  
P. Cripps ◽  
M. Baker ◽  
R. Hattersley ◽  
N. Lorenz ◽  
F. McConnell ◽  
...  
Keyword(s):  
Prospective Study ◽  
Clinical Significance ◽  
Proximal Tibia ◽  
Incidental Finding ◽  
Tibial Tuberosity ◽  
Patellar Ligament ◽  
Pain Response ◽  
Radiographic Measurements ◽  
Clinical Pain ◽  
A Prospective Study

SummaryIntroduction: Patellar ligament thickening is a recognized response following osteotomy of the proximal tibia as a treatment for cranial cruciate disease. In humans this is seen as a response to increased loading, but the reason for this thickening in dogs is unclear. A prospective study was undertaken to assess the degree and frequency of patellar ligament desmopathy in 25 consecutive cases undergoing tibial tuberosity advancement (TTA).Objectives: To determine the incidence of patellar ligament thickening following TTA.Methods: Consecutive cases undergoing TTA had ultrasonographic and radiographic measurements performed of the patellar ligament, at multiple positions on the ligament. This was performed at the time of surgery, and at six weeks and six months (ultrasound only) following surgery. The radiographic measurements were performed by two reviewers who were blinded to the timeframe of each image.Results: There was great variation in both the incidence and degree of thickening of the ligament. Fifty percent of the cases showed no changes in the thickness of the patellar ligament. A clinical pain response was not associated with patellar ligament thickening. No statistically significant variables which predicted the development of patellar ligament thickening were identified .Clinical significance: The presence of signs of patellar ligament thickening is of questionable clinical significance and is probably an incidental finding.

Sign in / Sign up

Export Citation Format

Share Document