Veterinary and Comparative Orthopaedics and Traumatology (VCOT) Veterinary and Comparative Orthopaedics and Traumatology (VCOT) vcot de-de Thu, 26 Nov 15 00:41:18 +0100 Ahead of print: Maquet and TTA technique combination for the treatment of cranial cruciate ligament... D. R. C. Marques (1), J. F. Ibanez (2) 25244 2015-11-25 10:33:13 Ahead of print: Metaphyseal osteopathy-like disease in two sibling kittens This report describes the diagnosis and treatment of a growth plate disturbance resembling canine metaphyseal osteopathy in two, two-month-old, sibling, intact, female Domestic Shorthair cats. Clinical signs and radiographic lesions resolved spontaneously after three months. Follow-up examination at six months of age showed complete recovery and no radiographic abnormalities. V. Pantaleo (1), P. D'Ettorre (1), M. Caldin (1), A. Vezzoni (2) 25243 2015-11-25 10:32:36 Ahead of print: Observations of sacrocaudal fusion in Greyhounds and other dogs Objectives: To describe the incidence and forms of nonpathological sacrocaudal fusion in racing Greyhounds and compare them with those in a variety of other domestic dog breeds. Methods: This retrospective observational study used archived anatomical specimens from 81 racing Greyhounds and 10 Beagles, and archived clinical radiographs from 81 non-Greyhound dogs representing 37 other breeds. Dogs less than two years of age and dogs with evidence of soft tissue or osseous pathology involving the sacrocaudal region were excluded. The incidence of osseous sacrocaudal fusion (any type and complete fusion) was compared between Greyhounds and all of the other dogs combined, using the Fisher's exact test. Results: Sacrocaudal fusion of some type was found in 33 (41%) of 81 Greyhounds but in only 14 (15%) of 91 non-Greyhound dogs (p A. H. Oheida (1, 2), C. J. Philip (2), H.-H. Yen (2), H. M. S. Davies (2) 25242 2015-11-25 10:31:28 Ahead of print: Assessment of canine autologous platelet-rich plasma produced with a commercial... Objectives: To characterize the cellular composition (platelets, erythrocytes, and leukocytes) and confirm reproducibility of platelet enrichment, as well as determine the platelet activation status in the final product of a commercial platelet-rich plasma kit using canine blood. Methods: Venous blood from 20 sedated client-owned dogs was used to prepare platelet-rich plasma (PRP) from a commercial kit. Complete blood counts were performed to determine erythrocyte, leukocyte, and platelet numbers in both whole blood (WB) and resultant PRP. The WB and PRP samples from jugular (fast collection) and cephalic (slow collection) venipuncture were also compared. P-selectin externalization was measured in WB and PRP samples from 15 of 20 dogs. Results: This commercial kit produced an average percent recovery in platelets of 64.7 ± 17.4; erythrocytes of 3.7 ± 0.8, and leukocytes of 31.6 ± 10.0. Neutrophil, monocyte, and lymphocyte percent recovery was 19.6 ± 7.2, 44.89 ± 19.8, and 57.5 ± 10.6, respectively. The recovery of platelets from jugular venipuncture (59.7 ± 13.6%) was lower than from cephalic recovery (68.8 ± 19.1%). The mean percent P-Selectin externalization for WB, PRP, and PRP with thrombin was 25.5 ± 30.9, 4.5 ± 6.4, and 90.6 ± 4.4 respectively. Clinical Significance: Cellular reproducibility of this kit was confirmed and platelets were concentrated within autologous serum. Additionally, measurements of P-selectin externalization showed that platelets are inactive in PRP unless stimulated to degranulate.... C. W. Frye (1), A. Enders (1), M. B. Brooks (2), A. M. Struble (1), J. J. Wakshlag (1) 25241 2015-11-25 10:30:48 Hitting the Front Cover K. A. Johnson 25191 2015-11-16 10:42:43 Ahead of print: Analysis of pelvic rotation on the standard hip ventrodorsal extended radiographic... Objectives: To study the symmetry of the iliac horizontal diameter (IHD) maximum obturator foramen width (OFW), ischiatic femoral overlap (IFO), pelvic horizontal radius (PHR), femoral head diameter (FHD), and obturator foramen area (OFA) parameters in the normal hip extended radiographic view and to evaluate the correlation of pelvic rotation with the magnitude of asymmetry of these parameters. Methods: Nine canine cadavers from adult, large and giant breeds were radiographed in standard hip extended views and with 2º, 4º and 6° degrees of rotation. The variables IHD, OFW, IFO, PHR, FHD, and OFA were analysed in radiographs. Results: The IHD measurements exhibited repeatability, bilateral symmetry and 95% of confidence interval of asymmetry in different pelvic rotations without superposition (p <0.05); OFW and IFO exhibited repeatability, bilateral symmetry and a small superposition in 95% of confidence interval of asymmetry according different pelvic rotations; PHR, FHD and OFA exhibited repeatability, bilateral symmetry and unacceptable superposition in 95% of confidence interval of asymmetry depending on pelvic rotation. Clinical significance: The IHD is the recommended variable and OFW is an acceptable variable in order to evaluate slight pelvic rotation. The data may be used in qualitative analyses of hip extended radiographic views. In the future, complementary studies should be performed to evaluate the impact of degree of pelvic rotation on the hip dysplasia score.... J. Martins (1), B. J. Colaço (1, 2), A. J. Ferreira (3), M. M. Ginja (1, 4) 25178 2015-11-09 10:42:48 Ahead of print: Magnetic resonance imaging assisted management in five cases of suspected quittor Objectives: Assessment of the usefulness of magnetic resonance imaging (MRI) in treatment planning in suspected cases of quittor in the horse. Methods: Five horses with chronic discharging tracts at the level of the foot underwent MRI for treatment planning. Results: The MRI examination revealed variable involvement of soft tissue and osseous structures of the foot in addition to abnormalities of the ungular cartilages in all cases. In two cases, follow-up MRI examination was performed. Four of five horses had a successful outcome, with three of these undergoing only one surgical procedure and one being managed medically. Clinical significance: We believe that the use of preoperative MRI facilitated accurate determination of the structures involved in cases of quittor, guiding the management, surgical approach and postoperative therapy. L. J. Meehan (1), S. E. Taylor (1), R. Labens (1), E. Cillán-García (1) 25177 2015-11-09 10:41:40 A response to “Comments on torsional testing” H. P. Aithal (1), S. K. Tyagi (1), P. Kinjavdekar (1), Amarpal (1), A. M. Pawde (1), T. Srivastava (1), J. Singh (1), D. N. Madhu (1) 25151 2015-10-29 10:21:29 Ahead of print: Lameness caused by an extradural lumbosacral foraminal synovial cyst in three German... Three German Shepherd Dogs that were presented for investigation of chronic unilateral hindlimb lameness and pain in the lumbosacral region were diagnosed with an intraspinal, extradural synovial cyst and reactive fibrosis protruding into the foramen of the lumbosacral articulation using magnetic resonance imaging and histology. This extradural mass compressed the nerve root in the foramen and the cauda equina. During a dorsal laminectomy and unilateral partial foraminotomy, the cyst and the fibrotic tissue were removed with the aid of a 2.4 mm 30° arthroscope for visualization of the foramen. The fibrotic tissue surrounding the cysts was in all cases confluent with the annulus of the intervertebral disc. The histological examination confirmed the diagnosis of a synovial cyst in all three cases by finding inflamed synovial membrane in the samples from the wall of the cyst as well as reactive fibrosis and cartilaginous metaplasia in the surrounding tissue. The three patients improved after the surgery and were pain free during the follow-up evaluations.... H. Schmökel (1), M. Rapp (2) 25150 2015-10-29 10:18:46 Ahead of print: Incidence of complications associated with tibial tuberosity advancement in Boxer... Objective: To retrospectively review and describe the incidence of complications associated with tibial tuberosity advancement (TTA) surgical procedures in a group of Boxer dogs (n = 36 stifles) and compare the data with a non-Boxer control population (n = 271 stifles). Methods: Retrospective analysis of medical records to identify all dogs that underwent TTA surgery due to cranial cruciate ligament disease. These records were categorized into two groups: Boxer dogs and non-Boxer dogs (controls – all other breeds). Results: Of the 307 stifles included, 69 complications were reported in 58 joints. The complication rate differed significantly for Boxer dogs (16/36 stifles) and non-Boxer dogs (42/271 stifles), corresponding to an odds ratio of 5.8 (confidence interval: 1.96–17.02; p-value B. de Lima Dantas (1), R. Sul (2), T. Parkin (1), I. Calvo (3) 25149 2015-10-29 10:18:01 Ahead of print: Biomechanical comparison of pin and tension-band wire fixation with a prototype... Objective: To compare a locking plate (LP) with pin and tension-band wire (pin/TBW) for fixation of mid-patellar transverse fractures. Materials and methods: Cadaveric canine stifle joints from 10 adult mixed breed dogs (23–36 kg) were used. Mid-patellar transverse osteotomies were randomly stabilized (in pairs) with either pin/TBW or a prototype LP. Cyclic loads (1 Hz, 500 cycles) at 100% body weight (90°-135° stifle joint extension), were applied. Survival or failure of constructs was defined as S. Gibert (1), M. P. Kowaleski (2), R. Matthys (3), R. Nützi (3), B. Serck (4), R. J. Boudrieau (2) 25148 2015-10-29 10:16:56 Ahead of print: A comparative study of the dorsolateral and ventrolateral approaches for repair of... Sacroiliac luxation, dorsolateral approach, ventrolateral approach, implant failure Objectives: Retrospective comparison of dorsolateral (DLA) and ventrolateral (VLA) surgical approaches for treatment of canine sacroiliac luxation using three different radiographic analyses. Methods: Surgical cases with immediate and ≥4 week postoperative radiographs were reviewed (Jan. 2000 to Jan. 2015). Exactness of reduction, screw position, and sacral body screw purchase were assessed with three separate methods: single plane assessment and orthogonal assessment with or without rotational limits. Results: The reduction index (RI) for DLA and VLA was not significantly different with single plane assessment (p = 0.0789), but it was significantly greater for DLA than VLA with orthogonal assessment, with or without rotational limits (p = 0.0039, p = 0.0146). No differences were observed with screw placement into the intended location (single plane, and orthogonal assessment with or without rotational limits; p = 0.2941, p = 0.4151, p = 0.3550, respectively). No differences were observed between mean screw purchase index (SPI) and the 60% goal for the DLA (p = 0.1303, p = 0.9594, p = 0.7120) or 50% goal for the VLA (p = 0.2224, p = 0.1401, p = 0.2224; single plane, and orthogonal assessment with or without rotational limits). Implant loosening was present in four DLA cases and one VLA case. No differences were observed in the number of cases or number of screws that loosened (p = 0.3483 and p = 0.6873, respectively). Clinical significance: The key factor demonstrated in maintaining screw and fixation stability was correct screw placement within the sacral body, regardless of the surgical approach.... H. Singh (1), M. P. Kowaleski (1), R. J. McCarthy (1), R. J. Boudrieau (1) 25147 2015-10-29 10:15:28 Ahead of print: Complications of appendicular fracture repair in cats and small dogs using locking... Objective: Our objectives were: 1) to review the complications associated with stabilization of appendicular fractures in cats and small dogs using locking compression plates (LCP), and 2) to identify factors that could influence fixation construct stability. Study design: Retrospective clinical study. Materials and methods: Medical and radiographic records of cats and small dogs with appendicular fractures treated with LCP were reviewed. Only cases with adequate follow-up to document clinical union and cases for which complications appeared before the clinical union were included. Complications were classified as implant-related complications or other complications. Cases with implant-related complications were compared to cases with non-implant-related complications for differences in signalment (species, age, body weight, multiple fractures), fracture location and type (fractured bone, fracture localization, closed or open fracture), reduction method (open reduction and internal fixation [ORIF] or minimally invasive plate osteosynthesis [MIPO]) and fixation evaluations (implant size, plate-bridging ratio, plate span ratio, working length, plate screw density, number of screws and cortices engaged per plate and per main fragment, ratio between screw and bone diameter at the narrowest aspect of the bone, and presence of ancillary fixation). Results: Seventy-five fractures from 63 cats (64 fractures) and 10 dogs (11 fractures) met the inclusion criteria. Eight humeral, 13 radio-ulnar, 26 femoral, and 28 tibio-fibular fractures were treated. Primary repair of the fracture was performed using 2.0 mm and 2.4 mm LCP in 22 and 53 fractures, respectively. Overall and implant-related complications were encountered in 13 and seven of 75 fractures, respectively. Fixation failure was not significantly associated with any aforementioned factor considered in this study, and in particular, there was no significant difference in the occurrence of fixation failure between fractures stabilized with two, or more than two, bicortical locking screws per main fragment. Clinical significance: 2.0 mm and 2.4 mm LCP were used to manage appendicular fractures in cats and small dogs. The overall complication and fixation failure rate were comparable to those reported in previous studies in which various locking plate systems were used.... R. Vallefuoco (1), H. Le Pommellet (2), A. Savin (1), A. Decambron (1), M. Manassero (1), V. Viateau (1), O. Gauthier (2), P. Fayolle (1) 25146 2015-10-29 10:14:10 Effect of bending direction on the mechanical behaviour of 3.5 mm String-of-Pearls and Limited... Objective: To compare the bending properties of String-of-Pearls® (SOP) and Limited Contact Dynamic Compression Plate® (LC-DCP) constructs in orthogonal bending directions. Methods: 3.5 mm SOP and LC-DCP plates were fixed to a bone model simulating a comminuted tibial fracture. Specimens were non-destructively tested in both mediolateral and craniocaudal bending for 10 cycles. Bending stiffness and total angular deformation were compared using parametric analyses (p J. Benamou (1), R. M. Demianiuk (1), S. Rutherford (2), C. Beckett (3), M. G. Ness (2), R. C. Haut (3), L. M. Déjardin (1) 25076 2015-10-09 08:40:27 High energy focused shock wave therapy accelerates bone healing Objectives: To evaluate the influence of shock wave therapy (SWT) on radiographic evidence of bone healing after tibial plateau leveling osteotomy (TPLO). Methods: Healthy dogs between two to nine years of age that underwent TPLO were randomly assigned to receive either electro-hydraulic SWT (1,000 shocks) or sham treatment (SHAM). Treatment or SHAM was administered to the osteotomy site immediately postoperatively and two weeks postoperatively. Three blinded radiologists evaluated orthogonal radiographs performed eight weeks postoperatively with both a 5-point and a 10-point bone healing scale. Linear regression analysis was used to compare median healing scores between groups. Results: Forty-two dogs (50 stifles) were included in the statistical analysis. No major complications were observed and all osteotomies healed uneventfully. The median healing scores were significantly higher at eight weeks postoperatively for the SWT group compared to the SHAM group for the 10-point (p N. R. Kieves (1), C. S. MacKay (2), K. Adducci (1), S. Rao (1), C. Goh (1), R. H. Palmer (1), F. M. Duerr 25075 2015-10-09 08:39:35 Tensions generated in a lateral fabellotibial suture model Objectives: To compare suture tension on a simulated lateral fabellotibial suture model using various methods of application of tension, fixation, and suture materials. Methods: Veterinarians constructed simulated lateral fabellotibial suture constructs on a tying stand with a force sensor. Participants used combinations of 45 kg test monofilament nylon, metric 7 braided polyethylene, crimps, crimper, or knots, with their choice of instruments to secure the constructs. The tension in completed constructs was measured and comparisons were made between nylon and polyethylene, the use of crimps compared to knots, and the use of a mechanical distractor compared to hand tightening techniques. A value of p A. F. Burton (1), C. Horstman (2), D. R. Mason (2) 25074 2015-10-09 08:27:09 Variability associated with assessing changes in position of a canine uncemented femoral stem... Objective: Evaluate variability associated with assessing changes in the position of uncemented femoral stems. Methods: Stem level, canal fill, stem angle, and version angle were measured on craniocaudal horizontal beam (CCHB) and open leg lateral (OLL) radiographic projections of the femur of 20 dogs that had uncemented total hip replacement. Intraobserver and interobserver repeatability were determined on immediate postoperative (PO) images. Differences in position were calculated between the first (3 months – R1) and second (6 months – R2) re-evaluation (R1-R2) time points, and between PO and R1. Results: The measurement process was very repeatable. For R1-R2, the stem appeared to subside 0.8 ± 1.4 mm for measurements based on the greater trochanter on the CCHB images, but there was a wide range (-3.9 to 2 mm; positive values indicate proximad movement). Measurements based on the intertrochanteric crest on the OLL images had the same mean, and also a wide range (-4.4 to 2.1 mm; negative values indicate proximad movement). For PO-R1, the stem appeared to subside 1.8 ± 2.0 mm (CCHB, based on the greater trochanter, range -7.7 to 2.2 mm), 1.6 ± 1.5 mm (CCHB, based on the intertrochanteric crest, range -0.7 to 4.3 mm); and 2.1 ± 2.1 mm (OLL, based on the intertrochanteric crest, range -1.6 to 6.8 mm). Conclusion: The position of a stable stem can appear different on subsequent re-evaluations, but this may be due to variability associated with inconsistency of positioning of the patient and limb. Clinical significance: Documenting subsidence in individual patients should not rely on calculations based on a single measurement.... H. M. Korani (1), D. J. Marcellin-Little (1), S. C. Roe (1) 25073 2015-10-09 08:26:16 Influence of a titanium mesh on the management of segmental long bone defects Objectives: To evaluate the influence of titanium mesh on guided bone regeneration when used, either alone or in combination with autogenous bone block graft, in a canine ulnar model. Methods: Thirty-two, purpose bred, adult, castrated male Beagles were used, divided into four equal-size groups. A unilateral mid-diaphyseal ulnar critical-size defect was created in each dog. The ulnar segments were stabilized with a stainless-steel plate and screws. Each defect was managed by: no further treatment (Group A) or by placement of a bone block graft taken from the ipsilateral iliac crest (Group B), or titanium mesh wrapped around the ulna (Group C), or a bone block graft and titanium mesh (Group D). After six months, bone block biopsies were performed and the samples were scanned using micro-computed tomography. Qualitative histological evaluation was performed on two non-decalcified longitudinal sections from each block. Results: No significant differences in terms of mineralized bone volume were detected between the grafted sites (Groups B and D) or between the non-grafted ones (Groups A and C). The histological evaluation indicated good integration of the bone blocks irrespective of the use of titanium mesh. Clinical significance: The use of titanium mesh does not influence the amount of bone formation. The canine ulnar critical-size defect model seems to be a reliable model to use in experimental studies.... S. I. Zoi (1, 2), S. A. Papadimitriou (3), A. D. Galatos (2), N. N. Prassinos (3), D. Psalla (3), M. Dalstra (4), A. Stavropoulos (5) 25072 2015-10-09 08:25:02 Effect of doxycycline on contralateral canine cranial cruciate ligament rupture Objective: To evaluate whether doxycycline administered to dogs with unilateral cranial cruciate ligament rupture (Uni-CCLR) would decrease the risk of contralateral-CCLR (Co-CCLR). To evaluate predictors for Co-CCLR survival. To evaluate if a predisposition of Labrador Retrievers to Co-CCLR exists when compared to other breeds. Methods: In this prospective randomized controlled clinical trial, 69 client-owned dogs with Uni-CCLR were randomly assigned to a doxycycline (group-D: 7.5 mg/kg PO BID x 6 weeks) or non-doxycycline (group-ND: negative control). Medical and imaging data, time from Uni- to Co-CCLR and to follow-up were recorded. Statistics included chi-squared test, logistic regression, Kaplan-Meier survival analysis, log rank test, survival curves, and frailty model (p D. J. F. von Pfeil (1, 2), J. Sung (3), J. Barry (4), K. Hayashi (3), M. R. Edwards (5) 25032 2015-10-01 11:43:52 Locking compression plate stabilization of 20 distal radial and ulnar fractures in toy and miniature... Objective: To evaluate retrospectively the effectiveness of the Locking Compression Plate® (LCP), in the form of either a straight or notched head T-plate, for the treatment of fractures of the distal radius and ulna in a series of 20 toy and miniature breed dogs. Methods: The medical records of toy and miniature breed dogs ( S. Gibert (1), G. R. Ragetly (1), R. J. Boudrieau (2) 25031 2015-10-01 11:42:33 Planned wedge size compared to achieved advancement in dogs undergoing the modified Maquet procedure Objectives: To evaluate the patellar ligament to tibial plateau angle (PL-TPA) and amount of achieved advancement in dogs that underwent the modified Maquet procedure; compare wedge sizes recommended using two different planning techniques (Orthomed and modified tibial tuberosity advancement); and evaluate anatomical factors that predict the wedge size required to obtain a 90° PL-TPA. Methods: Pre- and postoperative radiographs of dogs that had a modified Maquet procedure performed were evaluated for the following: calculated wedge size using two different planning techniques, the actual wedge size used, the achieved tibial tuberosity advancement, and the changes in PL-TPA. Anatomical measurements of the tibia were evaluated and correlated with the actual wedge size. Results: Of the 38 modified Maquet procedures identified, 53% (n = 20) had a PL-TPA of 90° ± 5°. Actual achieved advancement of the tibial tuberosity was 30% less than the wedge size used. Changes in PL-TPA and tibial width persisted at eight weeks postoperatively without loss of advancement. The two planning techniques did not result in a significantly different selection of wedge size. Clinical relevance: Current planning techniques for the modified Maquet procedure result in under-advancement of the tibial tuberosity. Both measurement techniques evaluated do not result in appropriate advancement.... M. W. Kapler (1), D. J. Marcellin-Little (1), S. C. Roe (1) 25030 2015-10-01 11:41:25 Comments on torsional testing G. Smith (1) 25029 2015-10-01 11:37:55 False ankylosis of the temporomandibular joint in a cat Objective: To describe the use of two-dimensional computer-assisted tomography (CT) with three-dimensional (3D) reconstruction in the diagnosis and planning of surgical treatment of a case of false ankylosis of the temporomandibular joint. Case report: A young European Shorthaired cat was presented with the complaint of inability to eat and open its jaws. A CT scan with 3D reconstruction allowed visualization of the lesion which was causing extra-articular ankylosis of the temporomandibular joint. Surgery was performed to resect an osseous lesion of the zygomatic arch, thus freeing the temporomandibular joint. Postoperative physical therapy was initiated immediately following surgery, and then carried out by the owner with a one year follow-up. Clinical examination of the cat was performed during regular office visits (at 1 month and 3 months following surgery), which allowed objective assessment of postoperative recuperation. At the end of a year, the owners reported that the cat had maintained sufficient jaw opening without any signs consistent with chronic pain. Conclusion: Computed tomography scan with 3D reconstruction allowed planning of the surgical correction of extra-articular ankylosis of the temporomandibular joint, and in this case condylectomy was avoided, since temporomandibular joint range-of-motion was maintained.... l. Larguier (1), N. Jamet (1) 24917 2015-09-18 13:51:23 Comparison of the tibia plateau angle between small and large dogs with cranial cruciate ligament... Objectives: To compare the conformation of the proximal tibia evaluated on a medio-lateral radiograph between small and large dogs with cranial cruciate ligament disease (CCLD). Methods: Retrospective clinical study with dogs having radiographic evaluation and CCLD confirmed at surgery. The first group (n = 52) was comprised of dogs weighing less than 15 kg and the second group (n = 52) of dogs weighing more than 15 kg. The tibial plateau angle (TPA), the relative tibial tuberosity width (rTTW), and the Z angle were measured on preoperative radiographs with imaging measurement software. Linear mixed models were used to assess the effect of weight, age, sex, and neutered status on radiographic measurements and to estimate interobserver variabilities. Results: The small dog group had a greater TPA (30.1° ± 5.3; p <0.001 with a mean difference of 4.9° [95% CI: 3.8–6.0]) and Z angle (69.9° ± 5.6; p<0.001 with a mean difference of 6.1° ([95% CI: 4.9–7.4]) than the large dog group. Sex and neutered status further influenced the TPA and Z angle values. No significant effect was observed on the rTTW values. A strong correlation was found between the TPA and the Z angle (r = 0.61, p <0.001). Variances were not significantly different between observers. Overall the interobserver variability was low suggesting that agreement was good. Clinical significance: Small dogs with CCLD have a steeper tibial plateau than large dogs with CCLD. Sex and neutered status also had an effect on some measured variables. This anatomical difference could influence the surgical technique, which may affect the outcome. The good interobserver agreement suggests the observer is unlikely to influence surgical planning.... A. Aertsens (1), J. Rincon Alvarez (1), C. M. Poncet (1), H. Beaufrère (1), G. R. Ragetly (1) 24916 2015-09-18 13:50:36 Treatment of cranial cruciate ligament rupture in the feline stifle Objective: To determine whether a lateral suture placed with bone anchors between quasi-isometric points in a cat is superior to a standard fabella-tibial suture for the stabilization of cranial cruciate ligament (CrCL) rupture compared to an intact stifle joint. Study design: Biomechanical cadaveric study. Methods: Six stifle joints with intact cruciate ligaments from three skeletally mature cats were placed in a loading mounting set and tested with axial loads of 20N and 60N at three different joint angles (75°,130° and 160°). The procedure was repeated with a transected CrCL; a stabilized stifle joint after a combination of three lateral suture techniques (fabella-tibial suture technique [SFT]; femoro-tibial suture technique 1 [FTS-1] and femoro-tibial suture technique 2 [FTS-2]). Radiographic examination of the relative position of the tibia to the fixed femur was compared. Results: Stabilization of the stifle joint with lateral sutures had comparable stability to the intact specimens in the cranio-caudal direction (p = 0.2) but not in the proximo-distal direction for the SFT (p = 0.04) and FTS-2 technique (p = 0.03). There was no significant difference between the three stabilization techniques (p >0.05). Clinical significance: Lateral sutures placed with bone anchors at quasi-isometric points performed better than SFT and FTS-2 in stabilizing the feline stifle after CrCL rupture in the proximo-distal plane. Biomechanical stability in the cranio-caudal plane after placement of a lateral suture across the feline stifle was similar to the intact CrCL.... R. De Sousa (1), M. Sutcliffe (2), N. Rousset (3), M. Holmes (3), S. J. Langley-Hobbs (4) 24915 2015-09-18 13:14:45