Search Results

You are looking at 1 - 5 of 5 items for :

  • "patella alta" x
  • Refine by Access: All Content x
Clear All

with skeletal deformity, gait abnormalities, and pain. This condition can also be accompanied by proximal displacement of the patella in the trochlear groove, known as patella alta, which may be associated with development of medial patellar luxation

Full access
in Journal of the American Veterinary Medical Association

Abstract

Objective—To define the vertical position of the patella in clinically normal large-breed dogs.

Sample Population—Cadavers of 13 clinically normal large-breed dog.

Procedure—Both hind limbs were harvested with intact stifle joints and mounted on a positioning device that allowed full range of motion of the stifle joint. Lateral radiographic views were obtained with the stifle joints positioned at each of 5 angles (148°, 130°, 113°, 96°, and 75°). Vertical position of the patella through a range of motion was depicted on a graph of mean stifle angle versus corresponding mean proximal patellar position (PPP) and distal patellar position (DPP) relative to the femoral trochlea for each dog. Ratio of length of the patellar ligament to length of the patella (L:P) was determined for each dog. Overall mean, SD, and 95% confidence intervals for L:P were calculated for all dogs.

Results—Evaluation of vertical position of the patella through a range of motion revealed a nearly linear relationship between joint angle and PPP and joint angle and DPP. Evaluation of L:P results did not reveal significant differences between limbs (left or right) or among joint angles. Overall mean ± SD L:P for all dogs was 1.68 ± 0.18 (95% confidence interval, 1.33 to 2.03).

Conclusion and Clinical Relevance—The L:P proved to be a repeatable measurement of vertical patellar position, which is independent of stifle angles from 75° to 148°. This measurement could be used as a quantitative method for diagnosing patella alta and patella baja in large-breed dogs. (Am J Vet Res 2002;63:42–46)

Full access
in American Journal of Veterinary Research

Interpretation The patella is positioned proximally with respect to the femoral trochlea (patella alta; Figure 2 ). A soft tissue radiopacity at the cranial aspect of the stifle joint is evident extending from the distal portion of the patella to the proximal

Full access
in Journal of the American Veterinary Medical Association

Medial patellar luxation is a common orthopedic disorder in dogs. 1 The relative risk of patellar luxation is greater in small-breed dogs than in large-breed dogs. 2 Patella alta (patella in a more proximal position than normal) has been

Full access
in American Journal of Veterinary Research

/PL of 2.06 or more indicated patella alta. 23 Contrarily, PLL/PL was not associated with MPL in healthy dogs and dogs with MPL grades I–III in Pomeranians, Chihuahuas, and Poodles. 24 In this study, the median PLL/PL for both groups was lower than the

Open access
in American Journal of Veterinary Research