A 19-year-old Thoroughbred gelding presented with sudden onset, non-weight bearing lameness in the right hindlimb. Radiography confirmed distal luxation of the patella, which was replaced into its normal anatomical location under general anaesthesia. There were no pathological sequelae noted on follow-up examination 9 months after the initial injury. To our knowledge, this is a rare manifestation of patellar luxation, only reported once previously in the equine literature.
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Proximal tibial osteotomies for treating grade IV medial patellar luxation in two feline stifles.
Top Companion Anim Med
December 2024
OrtopediaVet Veterinary Clinic, Dr. Eloy Curuci and team. Volta Redonda Street, 670 - Campo Belo, São Paulo, State of São Paulo 04608-011, Brazil.
Objectives: There is a lack of literature regarding the surgical management of high-grade patellar luxation in cats. Among the available options, corrective osteotomies are suitable for correcting severe bone deformities. Therefore, this study aimed to report on the surgical management of grade IV medial patellar luxation (MPL) through tibial corrective osteotomies in two cats.
View Article and Find Full Text PDFTibial Torsion Malalignment in Small Dogs with Medial Patellar Luxation.
Vet Comp Orthop Traumatol
November 2024
Division of Veterinary Surgery, Department of Veterinary Science, Faculty of Veterinary Medicine, Nippon Veterinary and Life Science University, Musashino-shi, Tokyo, Japan.
Objective: Medial patellar luxation (MPL) is prevalent in small dogs; however, the causes vary, and few studies have reported tibial deformities. We aimed to conduct a detailed morphological investigation of internal tibial torsion and internal foot rotation and compare the results between MPL grades to better understand the pathogenesis of MPL.
Study Design: We performed a morphological study of the tibia and comparison with MPL grade, and established a new parameter, metatarsal orientation relative to the orientation of the tibial tuberosity, the proximal tibia metatarsal angle (PTMTA).
Biomechanical Comparison of Spacer Pin Fixation to Two Established Methods of Tibial Tuberosity Transposition Stabilization in Dogs.
Vet Comp Orthop Traumatol
November 2024
Department of Clinical Sciences, Cornell University, Ithaca, New York, United States.
Objective: The aim of this cadaveric study was to compare the biomechanical outcomes of three methods of stabilization for tibial tuberosity transposition to treat medial patellar luxation: a complete osteotomy with a two-pin and tension band wire (TBW) fixation (TBW group), a partial osteotomy with a two-pin fixation (2 Pin group), and a partial osteotomy with a spacer pin fixation (Spacer Pin group).
Study Design: Thirty medium to large-sized canine cadaveric tibiae were dissected and randomly assigned to one of three groups: TBW, 2 Pin, and Spacer Pin groups. The patellar ligaments were loaded in tension until ultimate failure.
Combination of closing-wedge distal femoral osteotomy and modified tibial plateau levelling osteotomy for the treatment of medial patellar luxation and concomitant cranial cruciate ligament disease in dogs.
Res Vet Sci
November 2024
Department of Clinical and Veterinary Surgery, School of Agricultural and Veterinary Sciences, "Júlio de Mesquita Filho" São Paulo State University - UNESP, Jaboticabal, State of São Paulo, Brazil.
Article Synopsis
- The study investigates the effectiveness of combining distal femoral osteotomy (DFO) and modified tibial plateau levelling osteotomy (mTPLO) to treat dogs with medial patellar luxation (MPL) and cranial cruciate ligament disease (CCLD) along with certain bone deviations.
- A total of 12 dogs underwent the combined surgical procedures, with evaluations showing significant improvements in bone angles and successful healing rates over follow-up periods.
- Results indicated that lameness was resolved in all dogs by 90 days post-surgery, with no major complications reported, suggesting this treatment approach is effective for affected canines.
Effects of the Direction of Two Kirschner Wires on Combined Tibial Plateau Leveling Osteotomy and Tibial Tuberosity Transposition in Miniature Breed Dogs: An Ex Vivo Study.
Animals (Basel)
August 2024
Department of Veterinary Surgery, College of Veterinary Medicine, Chungnam National University, Daejeon 34134, Republic of Korea.
This study evaluates the impact of Kirschner wire (K-wire) insertion direction on the biomechanical properties of combined tibial plateau leveling osteotomy (TPLO) and tibial tuberosity transposition (TTT) procedures in small-breed dogs with cranial cruciate ligament rupture and medial patella luxation. Twenty-one cadaveric tibiae were divided into two groups; the specimens were divided into two groups; one underwent TPLO-TTT with a proximal pin placement (Group TTP), and the other received TPLO-TTT with a distal pin placement (Group TTD). For both pin placements, two additional subgroups were formed: one with a 0.
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