Tendon and Ligament Injuries

Authors: Cashmore RG1, Havlicek M, Perkins NR, James DR, Fearnside SM, Marchevsky AM, Black AP.
Journal: Vet Comp Orthop Traumatol

Dogs treated for congenital medial patellar luxation were reviewed for the purpose of determining the incidence of postoperative major complications requiring surgical revision and the risk factors for their occurrence. Major complications occurred in 18.5% of the patellar luxation stabilization procedures with implant associated complications being the most frequent, patellar reluxation the second, and tibial tuberosity avulsion the third most common major complication. Other complications included patellar ligament rupture and trochlear wedge displacement.

Authors: Newman M1, Bertollo N, Walsh W, Voss K.
Journal: Vet Comp Orthop Traumatol

Objectives: To evaluate the degree of lateralization achievable and strength of tibial tuberosity transposition and advancement (TTTA) relative to pin and tension band wiring (PTBW) for lateral tibial tuberosity transposition. Methods: Six pairs of cadaveric tibiae were used. Tibial tuberosity position was determined with computed tomography (CT); bones were then randomly assigned into TTTA and PTBW groups. The PTBW group had a tibial tuberosity osteotomy and fixation with pin and tension band wiring.

Authors: Frydman GH, Cuddy LC, Kim SE, Pozzi A1.
Journal: Vet Comp Orthop Traumatol

Objective: Retrospective case series describing the surgical treatment and outcome in dogs with bicondylar femoral fractures complicated by ligament or tendon injuries. Methods: Medical records were reviewed for three immature and one mature dog with traumatic bicondylar fractures of the distal femur and concurrent ligament or tendon injury treated surgically. Data retrieved included physical examination, imaging, and treatment. Long-term follow-up and return to function was assessed by owner feedback, physical examination, radiology, and force plate analysis.

Authors: Kanno N1, Hara Y, Fukano S, Fujie H, Ochi H, Fujita Y, Yasuji H, Nezu Y, Yogo T, Tagawa M.
Journal: Vet Comp Orthop Traumatol

Objective: The aim of this study was to investigate the biomechanical effects of cranial cruciate ligament (CrCL) transection on stifle stability at three different stifle joint flexion angles using a robotic system. Methods: This was an ex vivo biomechanical study. Stifles (n = 6) were collected from the cadavers of Beagles weighing 10.5-12.0 kg. Six stifle joints were dissected, potted, and secured to the manipulator arms of a robotic simulator.

Authors: Ley B1, Daubs B, Bader J, Silverman E.
Journal: Vet Comp Orthop Traumatol

Objectives: To determine whether the medial collateral ligament can be a reliable intra-operative anatomical landmark for rotation of the tibial plateau in the tibial plateau levelling osteotomy (TPLO) procedure, thus providing a tibial plateau rotation equal to that obtained using standard preoperative measurements. Methods: Tibial plateau levelling osteotomy procedures were performed on pelvic limbs (n = 42) from canine cadavers with or without a history of cranial cruciate ligament deficiency.

Authors: Kennedy KC1, Perry JA, Duncan CG, Duerr FM.
Journal: Vet Surg

OBJECTIVE:

To report clinical and histopathologic features of long digital extensor (LDE) tendon mineralization with concurrent cranial cruciate ligament (CCL) rupture in a dog.

STUDY DESIGN:

Case report.

ANIMAL:

1.5-year-old, male castrated, English bulldog mix weighing 31.5 kg.

METHODS:

Pre- and postoperative orthogonal radiographs, arthroscopic evaluation, arthrotomy with en bloc surgical excision, and histopathologic analysis of the excised LDE tendon.

Authors: Tan CJ1, Bergh MS, Schembri MA, Johnson KA.
Journal: Vet Surg

OBJECTIVE:

To report the accuracy of osteotomy position in dogs undergoing tibial plateau leveling osteotomy (TPLO) and to evaluate the effect of 2 different TPLO jig and saw systems on tibial osteotomy position.

STUDY DESIGN:

Retrospective case series.

ANIMALS:

Dogs (n = 124; 134 TPLO).

METHODS:

Authors: Headrick JF1, Zhang S, Millard RP, Rohrbach BW, Weigel JP, Millis DL.
Journal: Am J Vet Res

Objective-To compare the 3-D motion of the pelvic limb among clinically normal dogs and dogs with cranial cruciate ligament (CCL)-deficient stifle joints following tibial plateau leveling osteotomy (TPLO) or lateral fabellar-tibial suture (LFS) stabilization by use of an inverse dynamics method. Animals-6 clinically normal dogs and 19 dogs with CCL-deficient stifle joints that had undergone TPLO (n = 13) or LFS (6) stabilization at a mean of 4 and 8 years, respectively, prior to evaluation.

Authors: Soto N1, Fauber AE, Ko JC, Moore GE, Lambrechts NE.
Journal: J Am Vet Med Assoc

Objective-To compare the analgesic effects of intra-articularly administered saline (0.9% NaCl) solution, morphine, dexmedetomidine, and a morphine-dexmedetomidine combination in dogs undergoing stifle joint surgery for cranial cruciate ligament rupture. Design-Randomized, controlled, clinical trial. Animals-44 dogs with cranial cruciate ligament rupture that underwent tibial tuberosity advancement (TTA) or tibial plateau leveling osteotomy (TPLO).

Authors: Lorenz ND, Pettitt R1.
Journal: Vet Comp Orthop Traumatol

The management of failed surgical procedures involving osteotomy for tibial tuberosity advancement can be demanding due to the limited available bone stock, which must be large enough to counteract the powerful proximal and cranial distractive forces exerted by the quadriceps mechanism. Initial mode of failure may be related to implant failure, fracture of the tibial tuberosity, or a combination of both. The complications and management of the cases reported here were all associated with avulsion fracture of the tibial tuberosity following tibial tuberosity advancement.