Complications Associated with the Treatment of Patellar Luxation

Oshin, Abimbola

doi:10.1002/9781119421344.ch118

Cited by 3 publications

(3 citation statements)

References 32 publications

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“…Reasons for patella reluxation can include an inadequate degree of TTT, concurrent femoral or tibial angular limb deformities or a postsurgical inadequate trochlear groove depth. It has been suggested that failure to address a shallow trochlear groove is a risk factor for reluxation, 18 while dogs that undergo medial patellar luxation surgery without trochleoplasty are five times more likely to develop reluxation. 9 A trochleoplasty was performed in 90% of our cases.…”

Section: Discussionmentioning

confidence: 99%

Complications Following Surgical Correction of Medial Patellar Luxation in Small-to-Medium-Size Dogs

Rossanese

German

Comerford

et al. 2019

Vet Comp Orthop Traumatol

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Objective The main aim of this study was to describe complications in dogs weighing < 20 kg treated for medial patellar luxation and to determine risk factors associated with these complications. Materials and Methods Medical records were reviewed and cases were grouped based on four techniques of stabilization for the tibial tuberosity transposition (TTT). Variables including animal signalment, clinical presentation, TTT technique, other concurrent surgical techniques and associated complications were investigated. Multiple logistic regression was used to determine the association of the same variables with specific complications such as tibial tuberosity fractures or avulsions, patellar reluxation and implant-related complications. Results Of the 100 procedures performed, 37 suffered a complication. There were no significant differences in the overall complication rate between TTT stabilization techniques. Preservation of the tibial tuberosity distal cortical attachment was associated with a reduced risk of implant-related complications, whereas adding a medial release to the surgical techniques was associated with an increased risk of medial patellar reluxation. The type of trochleoplasty performed did not affect the complication rate. Conclusions In the current study, a high rate of complications was found in dogs < 20 kg undergoing medial patellar luxation surgery. Performing a medial release and preserving the distal cortical attachment of the tibial tuberosity were the only variables associated respectively with an increase and a reduction in the risk of postsurgical complications.

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Section: Discussionmentioning

confidence: 99%

Complications Following Surgical Correction of Medial Patellar Luxation in Small-to-Medium-Size Dogs

Rossanese

German

Comerford

et al. 2019

Vet Comp Orthop Traumatol

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“…They have the potential to create better solutions for complicated bone disorders 10 – 13 . However, reconstructing the normal anatomy may not always be functional in multifactorial problems 4 , 14 , 15 .…”

Section: Introductionmentioning

confidence: 99%

A new patient-specific overformed anatomical implant design method to reconstruct dysplastic femur trochlea

Öztürk

Ayazoğlu

Öztürk

et al. 2023

Sci Rep

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Patellar luxation with condylar defect is a challenging situation for reconstruction in humans. Patella reluxation, cartilage damage and pain are the most common complications. This study aims to present a new patient specific method of overformed implant design and clinical implantation that prevents luxation of patella without damaging the cartilage in a dog. Design processes are Computer Tomography, Computer Assisted Design, rapid prototyping of the bone replica, creation of the implant with surgeon’s haptic knowledge on the bone replica, 3D printing of the implant and clinical application. The implant was fully seated on the bone. Patella reluxation or implant-related bone problem was not observed 80 days after the operation. However, before the implant application, there were soft tissue problems due to previous surgeries. Three-point bending test and finite element analysis were performed to determine the biomechanical safety of the implant. The stress acting on the implant was below the biomechanical limits of the implant. More cases with long-term follow-up are needed to confirm the success of this method in patellar luxation. Compared with trochlear sulcoplasty and total knee replacement, there was no cartilage damage done by surgeons with this method, and the implant keeps the patella functionally in sulcus. This is a promising multidisciplinary method that can be applied to any part of the bone and can solve some orthopaedic problems with surgeon’s haptic knowledge.

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“…Although congenital and traumatic factors are involved, most PLs are considered congenital because they occur early in life and are not associated with trauma [4]. Although there are surgical techniques to correct PL, growing concern exists regarding the complications and re-luxation associated with surgery, especially in higher-grade PL [1, 2,6,7,8,9, 16, 22]. A breeding scheme is an alternative solution that has been used to decrease the prevalence of PL [11].…”

mentioning

confidence: 99%

Evidence of genetic contribution to patellar luxation in Toy Poodle puppies

Maeda¹,

Inoue²,

Tanaka³

et al. 2019

The Journal of Veterinary Medical Science

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Patellar luxation (PL) is one of the most common orthopedic disorders in dogs and a genetic factor is considered to play an important role in the development of PL. Genomic analysis has attempted to identify the genetic markers associated with the development of PL but only suggestive markers have been identified. Carefully selecting breeds with higher incidence rates of congenital PL as well as affected dogs with more severe symptoms are required, but such information remains limited to date. This study aimed to assess the genetic contribution to the development of PL in puppies. Using data on PL from 2,048 puppies of the nine common breeds in Japan, the association of PL grades between the limbs, breed, and sex as well as the concordance of PL between littermates were examined. A significant correlation was found between right and left limbs in PL grades in all the puppies (Spearman rank correlation coefficient (r s )=0.91, P <0.001) and for each breed (r s =0.81–0.93, P <0.001). In total, 20.3% of the puppies were affected. The inter-breed difference in PL prevalence was 2.1–38.1%, and Toy Poodles showed the highest prevalence rates. Littermates of the affected puppies with PL grade ≥2 had a 16.2-fold higher risk ( P <0.001). Thus, these results suggest that PL in puppies is primarily influenced by genetics, especially in Toy Poodles. These data highlight the necessity of using a breeding scheme to decrease the prevalence of PL.

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Complications Associated with the Treatment of Patellar Luxation

Cited by 3 publications

References 32 publications

Complications Following Surgical Correction of Medial Patellar Luxation in Small-to-Medium-Size Dogs

Complications Following Surgical Correction of Medial Patellar Luxation in Small-to-Medium-Size Dogs

A new patient-specific overformed anatomical implant design method to reconstruct dysplastic femur trochlea

Evidence of genetic contribution to patellar luxation in Toy Poodle puppies

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