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Peter Muir - One of the best experts on this subject based on the ideXlab platform.
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Comprar Advances In The Canine Cranial Cruciate Ligament | P. Muir | 9780813818528 | Wiley
2020Co-Authors: Peter MuirAbstract:Tienda online donde Comprar Advances In The Canine Cranial Cruciate Ligament al precio 91,80 € de P. Muir, tienda de Libros de Medicina, Libros de Veterinaria - Medicina y Cirugia Animal
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accuracy of 3 tesla magnetic resonance imaging using detection of fiber loss and a visual analog scale for diagnosing partial and complete Cranial Cruciate Ligament ruptures in dogs
Veterinary Radiology & Ultrasound, 2018Co-Authors: Constance G Fazio, Peter Muir, Susan L Schaefer, Kenneth R WallerAbstract:Canine Cranial Cruciate Ligament rupture is often bilateral and asymmetrical, ranging from partial to complete rupture. The purpose of our diagnostic accuracy study was to assess the accuracy of 3 Tesla magnetic resonance imaging (MRI) detection of fiber loss and use of a visual analog scale in the diagnosis of complete versus partial Cranial Cruciate Ligament rupture in 28 clinical dogs with unilateral complete rupture and contralateral partial rupture. Three Tesla MRI was performed on 56 stifles using sagittal sequences (T2-weighted fast spin echo with fat saturation, proton density fast spin echo, and T2-weighted 3D fast spin echo CUBE). Two MRI observers assessed the Cranial Cruciate Ligament for fiber loss and completed a visual analog scale. The MRI data were compared to arthroscopy and clinical status. Accuracy classifying partial or complete rupture was assessed using receiver operating characteristic analysis. Compared to arthroscopy, for complete Cranial Cruciate Ligament rupture, sensitivity, specificity, and accuracy of MRI detection of fiber loss were 0.78, 0.50–0.60, and 0.68–0.71, respectively, and, for partial tears, specificity was 1.00. An MRI visual analog scale score ≥79 was indicative of complete Cranial Cruciate Ligament rupture (sensitivity 0.72–0.94 and specificity 0.71–0.84). Using a visual analog scale cut-point ≥79, observers achieved good accuracy discriminating clinical status of partial or complete Cranial Cruciate Ligament rupture (area under the curve 0.87–0.93). MRI evaluation for fiber loss and use of a visual analog scale are specific in stifles with clinically stable partial Cranial Cruciate Ligament rupture. In stifles with clinically unstable complete Cranial Cruciate Ligament rupture, both MRI tests are sensitive though not specific compared to arthroscopy. As a diagnostic imaging method, MRI may help guide treatment in patients with Cranial Cruciate Ligament damage, particularly for stable partial rupture.
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Advances in the Canine Cranial Cruciate Ligament
2017Co-Authors: Peter MuirAbstract:Advances In The Canine Cranial Cruciate Ligament - Libros de Medicina - Medicina y Cirugia Animal - 91,80
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radiographic risk factors for contralateral rupture in dogs with unilateral Cranial Cruciate Ligament rupture
PLOS ONE, 2014Co-Authors: Connie Chuang, Susan L Schaefer, Megan A Ramaker, Sirjaut Kaur, Rebecca A Csomos, Kevin T Kroner, Jason A Bleedorn, Peter MuirAbstract:Background Complete Cranial Cruciate Ligament rupture (CR) is a common cause of pelvic limb lameness in dogs. Dogs with unilateral CR often develop contralateral CR over time. Although radiographic signs of contralateral stifle joint osteoarthritis (OA) influence risk of subsequent contralateral CR, this risk has not been studied in detail. Methodology/Principal Findings We conducted a retrospective longitudinal cohort study of client-owned dogs with unilateral CR to determine how severity of radiographic stifle synovial effusion and osteophytosis influence risk of contralateral CR over time. Detailed survival analysis was performed for a cohort of 85 dogs after case filtering of an initial sample population of 513 dogs. This population was stratified based on radiographic severity of synovial effusion (graded on a scale of 0, 1, and 2) and severity of osteophytosis (graded on a scale of 0, 1, 2, and 3) of both index and contralateral stifle joints using a reproducible scoring method. Severity of osteophytosis in the index and contralateral stifles was significantly correlated. Rupture of the contralateral Cranial Cruciate Ligament was significantly influenced by radiographic OA in both the index and contralateral stifles at diagnosis. Odds ratio for development of contralateral CR in dogs with severe contralateral radiographic stifle effusion was 13.4 at one year after diagnosis and 11.4 at two years. Odds ratio for development of contralateral CR in dogs with severe contralateral osteophytosis was 9.9 at one year after diagnosis. These odds ratios were associated with decreased time to contralateral CR. Breed, age, body weight, gender, and tibial plateau angle did not significantly influence time to contralateral CR. Conclusion Subsequent contralateral CR is significantly influenced by severity of radiographic stifle effusion and osteophytosis in the contralateral stifle, suggesting that synovitis and arthritic joint degeneration are significant factors in the disease mechanism underlying the arthropathy.
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caudal Cruciate Ligament damage in dogs with Cranial Cruciate Ligament rupture
Veterinary Surgery, 2010Co-Authors: Julia P. Sumner, Mark D. Markel, Peter MuirAbstract:Objective: To investigate the incidence of caudal Cruciate Ligament (CaCL) damage in dogs with Cranial Cruciate Ligament rupture (CCLR). Study Design: Prospective clinical study. Animals: Dogs (n=24) admitted for surgical stabilization of the stifle after CCLR and 8 healthy dogs with intact Cranial Cruciate Ligament (CCL) and CaCL studied as controls. Methods: Preoperative radiographs and stifle joint images (arthrotomy, 6; arthroscopy, 18) were collected from dogs with CCLR. Severity of arthritis, synovitis, CCL damage, and CaCL damage were assessed using numerical rating scales. The CaCL was probed to determine whether minor fraying or a full thickness defect in the Ligament was present. Data collected from the study population were compared with the control population of dogs. Results: The CaCL was damaged in 21/24 (88%) of dogs with CCLR; 6/24 (25%) had a full thickness defect in the CaCL. Severity of stifle synovitis and severity of damage to the CaCL were positively correlated (P<.05). Conclusions: The CaCL is damaged in a high percentage of dogs with CCLR. A significant and positive correlation exists between the degree of synovitis present and the extent of CaCL damage. Clinical Relevance: In dogs with CCLR, Cruciate Ligament pathology typically involves both the CCL and CaCL. As the severity of synovitis and the extent of CaCL damage are related, this observation supports the hypothesis that stifle synovitis may contribute to CCL and CaCL degeneration and subsequent damage.
S.w. Aiken - One of the best experts on this subject based on the ideXlab platform.
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Intercondylar Notch Width in Dogs With and Without Cranial Cruciate Ligament Injuries
Veterinary and Comparative Orthopaedics and Traumatology, 2018Co-Authors: S.w. Aiken, P. H. Kass, J.p. ToombsAbstract:An intercondylar notch width index was determined in 45 stifles with Cranial Cruciate Ligament (CCL) injuries and 98 normal stifle joints. Stifles with CCL injuries were found to have significantly smaller intercondylar notch width indices as compared to normal stifles.
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Comparison of Stifle Biomechanics after Two Different Techniques of Cranial Cruciate Ligament Repair
VCOT Archive, 2018Co-Authors: Jacqueline R. Davidson, M.s. Bauer, S.w. Aiken, J.p. Toombs, J.m. ProstrednyAbstract:Stifle joint biomechanics were evaluated by analysis of instant centre of motion after Cranial Cruciate Ligament transection and after stifle joint stabilization using either the fibular head transposition or the under-and-over fascial strip technique. Neither surgical technique consistently resulted in abnormal instant centres of motion.
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Intercondylar Notch Width in Dogs With and Without Cranial Cruciate Ligament Injuries
Veterinary and Comparative Orthopaedics and Traumatology, 1995Co-Authors: P. H. Kass, J.p. Toombs, S.w. AikenAbstract:SummaryThis prospective study evaluated the intercondylar notch width in dogs with naturally occurring Cranial Cruciate Ligament (CCL) injuries. The intercondylar notch width was measured in 45 stifles with CCL injuries and 98 normal stifle joints to determine if stifles with CCL injuries have outlet stenosis of the intercondylar notch. A notch width index was calculated in order to compensate for the variety of dog sizes. Stifles with CCL injuries had significantly smaller notch width indices as compared to normal stifles. We concluded that intercondylar notchplasty should be performed if an intra-articular repair of the CCL deficient stifle is planned in order to minimize impingement of the stenotic intercondylar notch on the intra-articular graft.An intercondylar notch width index was determined in 45 stifles with Cranial Cruciate Ligament (CCL) injuries and 98 normal stifle joints. Stifles with CCL injuries were found to have significantly smaller intercondylar notch width indices as compared to normal stifles.
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Comparison of Stifle Biomechanics after Two Different Techniques of Cranial Cruciate Ligament Repair
Veterinary and Comparative Orthopaedics and Traumatology, 1993Co-Authors: M.s. Bauer, S.w. Aiken, J.p. Toombs, J.m. Prostredny, Jacqueline DavidsonAbstract:SummaryStifle joint biomechanics were evaluated by analysis of instant centre of motion, after Cranial Cruciate Ligament transection and after stifle joint stabilization, using either the fibular head transposition or the under-and-over fascial strip technique. The instant centres of motion and resulting velocity vectors were determined by radiographic evaluation of the stifle of twelve fresh cadavers before and after Cranial Cruciate Ligament transection, and after stabilization of the stifle joint by either the fibular head transposition or the under-and-over fascial strip technique. All 12 stifles had normal instant centres of motion before transection of the Cranial Cruciate Ligament, and 10 of 12 were normal after transection. All six stifles repaired by fibular head transposition retained normal instant centre of motion. Abnormal instant centres of motion were present in three of six stifles repaired by the under-and-over technique. These differences were not statistically significant.Stifle joint biomechanics were evaluated by analysis of instant centre of motion after Cranial Cruciate Ligament transection and after stifle joint stabilization using either the fibular head transposition or the underand-over fascial strip technique. Neither surgical technique consistently resulted in abnormal instant centres of motion.
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Effect of Suture Type on Stifle Joint Biomechanics After Extra-Articular Repair of Cranial Cruciate Ligament Transection in the Dog
Veterinary and Comparative Orthopaedics and Traumatology, 1991Co-Authors: M.s. Bauer, S.w. Aiken, J.p. Toombs, W. E. Blevins, W. R. Widmer, Jaqueline Davidson, J.m. ProstrednyAbstract:SummaryThe effect of two suture types, monofilament polybutester and braided polyester, on stifle joint biomechanics after extra-articular repair of Cranial Cruciate Ligament rupture was evaluated by analysis of the instant centre of motion. The instant centres of motion and resulting velocity vectors were determined radiographically on both stifles of eight fresh canine cadavers before and after Cranial Cruciate Ligament transection. After Ligament transection, all 16 stifles were repaired with an extra-articular technique utilizing a double strand of suture placed between the lateral fabella and the tibial tuberosity. One stifle on each cadaver was repaired with each suture type. The instant centres of motion and resulting velocity vectors were re-evaluated post repair. All stifles had normal instant centres of motion prior to transection of the Cranial Cruciate Ligament. Neither Ligament transection nor extra-articular repair with either suture type resulted in an abnormal change in the instant centre of motion.
J.p. Toombs - One of the best experts on this subject based on the ideXlab platform.
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Intercondylar Notch Width in Dogs With and Without Cranial Cruciate Ligament Injuries
Veterinary and Comparative Orthopaedics and Traumatology, 2018Co-Authors: S.w. Aiken, P. H. Kass, J.p. ToombsAbstract:An intercondylar notch width index was determined in 45 stifles with Cranial Cruciate Ligament (CCL) injuries and 98 normal stifle joints. Stifles with CCL injuries were found to have significantly smaller intercondylar notch width indices as compared to normal stifles.
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Comparison of Stifle Biomechanics after Two Different Techniques of Cranial Cruciate Ligament Repair
VCOT Archive, 2018Co-Authors: Jacqueline R. Davidson, M.s. Bauer, S.w. Aiken, J.p. Toombs, J.m. ProstrednyAbstract:Stifle joint biomechanics were evaluated by analysis of instant centre of motion after Cranial Cruciate Ligament transection and after stifle joint stabilization using either the fibular head transposition or the under-and-over fascial strip technique. Neither surgical technique consistently resulted in abnormal instant centres of motion.
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Intercondylar Notch Width in Dogs With and Without Cranial Cruciate Ligament Injuries
Veterinary and Comparative Orthopaedics and Traumatology, 1995Co-Authors: P. H. Kass, J.p. Toombs, S.w. AikenAbstract:SummaryThis prospective study evaluated the intercondylar notch width in dogs with naturally occurring Cranial Cruciate Ligament (CCL) injuries. The intercondylar notch width was measured in 45 stifles with CCL injuries and 98 normal stifle joints to determine if stifles with CCL injuries have outlet stenosis of the intercondylar notch. A notch width index was calculated in order to compensate for the variety of dog sizes. Stifles with CCL injuries had significantly smaller notch width indices as compared to normal stifles. We concluded that intercondylar notchplasty should be performed if an intra-articular repair of the CCL deficient stifle is planned in order to minimize impingement of the stenotic intercondylar notch on the intra-articular graft.An intercondylar notch width index was determined in 45 stifles with Cranial Cruciate Ligament (CCL) injuries and 98 normal stifle joints. Stifles with CCL injuries were found to have significantly smaller intercondylar notch width indices as compared to normal stifles.
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Comparison of Stifle Biomechanics after Two Different Techniques of Cranial Cruciate Ligament Repair
Veterinary and Comparative Orthopaedics and Traumatology, 1993Co-Authors: M.s. Bauer, S.w. Aiken, J.p. Toombs, J.m. Prostredny, Jacqueline DavidsonAbstract:SummaryStifle joint biomechanics were evaluated by analysis of instant centre of motion, after Cranial Cruciate Ligament transection and after stifle joint stabilization, using either the fibular head transposition or the under-and-over fascial strip technique. The instant centres of motion and resulting velocity vectors were determined by radiographic evaluation of the stifle of twelve fresh cadavers before and after Cranial Cruciate Ligament transection, and after stabilization of the stifle joint by either the fibular head transposition or the under-and-over fascial strip technique. All 12 stifles had normal instant centres of motion before transection of the Cranial Cruciate Ligament, and 10 of 12 were normal after transection. All six stifles repaired by fibular head transposition retained normal instant centre of motion. Abnormal instant centres of motion were present in three of six stifles repaired by the under-and-over technique. These differences were not statistically significant.Stifle joint biomechanics were evaluated by analysis of instant centre of motion after Cranial Cruciate Ligament transection and after stifle joint stabilization using either the fibular head transposition or the underand-over fascial strip technique. Neither surgical technique consistently resulted in abnormal instant centres of motion.
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Effect of Suture Type on Stifle Joint Biomechanics After Extra-Articular Repair of Cranial Cruciate Ligament Transection in the Dog
Veterinary and Comparative Orthopaedics and Traumatology, 1991Co-Authors: M.s. Bauer, S.w. Aiken, J.p. Toombs, W. E. Blevins, W. R. Widmer, Jaqueline Davidson, J.m. ProstrednyAbstract:SummaryThe effect of two suture types, monofilament polybutester and braided polyester, on stifle joint biomechanics after extra-articular repair of Cranial Cruciate Ligament rupture was evaluated by analysis of the instant centre of motion. The instant centres of motion and resulting velocity vectors were determined radiographically on both stifles of eight fresh canine cadavers before and after Cranial Cruciate Ligament transection. After Ligament transection, all 16 stifles were repaired with an extra-articular technique utilizing a double strand of suture placed between the lateral fabella and the tibial tuberosity. One stifle on each cadaver was repaired with each suture type. The instant centres of motion and resulting velocity vectors were re-evaluated post repair. All stifles had normal instant centres of motion prior to transection of the Cranial Cruciate Ligament. Neither Ligament transection nor extra-articular repair with either suture type resulted in an abnormal change in the instant centre of motion.
J.m. Prostredny - One of the best experts on this subject based on the ideXlab platform.
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Comparison of Stifle Biomechanics after Two Different Techniques of Cranial Cruciate Ligament Repair
VCOT Archive, 2018Co-Authors: Jacqueline R. Davidson, M.s. Bauer, S.w. Aiken, J.p. Toombs, J.m. ProstrednyAbstract:Stifle joint biomechanics were evaluated by analysis of instant centre of motion after Cranial Cruciate Ligament transection and after stifle joint stabilization using either the fibular head transposition or the under-and-over fascial strip technique. Neither surgical technique consistently resulted in abnormal instant centres of motion.
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Comparison of Stifle Biomechanics after Two Different Techniques of Cranial Cruciate Ligament Repair
Veterinary and Comparative Orthopaedics and Traumatology, 1993Co-Authors: M.s. Bauer, S.w. Aiken, J.p. Toombs, J.m. Prostredny, Jacqueline DavidsonAbstract:SummaryStifle joint biomechanics were evaluated by analysis of instant centre of motion, after Cranial Cruciate Ligament transection and after stifle joint stabilization, using either the fibular head transposition or the under-and-over fascial strip technique. The instant centres of motion and resulting velocity vectors were determined by radiographic evaluation of the stifle of twelve fresh cadavers before and after Cranial Cruciate Ligament transection, and after stabilization of the stifle joint by either the fibular head transposition or the under-and-over fascial strip technique. All 12 stifles had normal instant centres of motion before transection of the Cranial Cruciate Ligament, and 10 of 12 were normal after transection. All six stifles repaired by fibular head transposition retained normal instant centre of motion. Abnormal instant centres of motion were present in three of six stifles repaired by the under-and-over technique. These differences were not statistically significant.Stifle joint biomechanics were evaluated by analysis of instant centre of motion after Cranial Cruciate Ligament transection and after stifle joint stabilization using either the fibular head transposition or the underand-over fascial strip technique. Neither surgical technique consistently resulted in abnormal instant centres of motion.
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Effect of Suture Type on Stifle Joint Biomechanics After Extra-Articular Repair of Cranial Cruciate Ligament Transection in the Dog
Veterinary and Comparative Orthopaedics and Traumatology, 1991Co-Authors: M.s. Bauer, S.w. Aiken, J.p. Toombs, W. E. Blevins, W. R. Widmer, Jaqueline Davidson, J.m. ProstrednyAbstract:SummaryThe effect of two suture types, monofilament polybutester and braided polyester, on stifle joint biomechanics after extra-articular repair of Cranial Cruciate Ligament rupture was evaluated by analysis of the instant centre of motion. The instant centres of motion and resulting velocity vectors were determined radiographically on both stifles of eight fresh canine cadavers before and after Cranial Cruciate Ligament transection. After Ligament transection, all 16 stifles were repaired with an extra-articular technique utilizing a double strand of suture placed between the lateral fabella and the tibial tuberosity. One stifle on each cadaver was repaired with each suture type. The instant centres of motion and resulting velocity vectors were re-evaluated post repair. All stifles had normal instant centres of motion prior to transection of the Cranial Cruciate Ligament. Neither Ligament transection nor extra-articular repair with either suture type resulted in an abnormal change in the instant centre of motion.
Connie Chuang - One of the best experts on this subject based on the ideXlab platform.
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radiographic risk factors for contralateral rupture in dogs with unilateral Cranial Cruciate Ligament rupture
PLOS ONE, 2014Co-Authors: Connie Chuang, Susan L Schaefer, Megan A Ramaker, Sirjaut Kaur, Rebecca A Csomos, Kevin T Kroner, Jason A Bleedorn, Peter MuirAbstract:Background Complete Cranial Cruciate Ligament rupture (CR) is a common cause of pelvic limb lameness in dogs. Dogs with unilateral CR often develop contralateral CR over time. Although radiographic signs of contralateral stifle joint osteoarthritis (OA) influence risk of subsequent contralateral CR, this risk has not been studied in detail. Methodology/Principal Findings We conducted a retrospective longitudinal cohort study of client-owned dogs with unilateral CR to determine how severity of radiographic stifle synovial effusion and osteophytosis influence risk of contralateral CR over time. Detailed survival analysis was performed for a cohort of 85 dogs after case filtering of an initial sample population of 513 dogs. This population was stratified based on radiographic severity of synovial effusion (graded on a scale of 0, 1, and 2) and severity of osteophytosis (graded on a scale of 0, 1, 2, and 3) of both index and contralateral stifle joints using a reproducible scoring method. Severity of osteophytosis in the index and contralateral stifles was significantly correlated. Rupture of the contralateral Cranial Cruciate Ligament was significantly influenced by radiographic OA in both the index and contralateral stifles at diagnosis. Odds ratio for development of contralateral CR in dogs with severe contralateral radiographic stifle effusion was 13.4 at one year after diagnosis and 11.4 at two years. Odds ratio for development of contralateral CR in dogs with severe contralateral osteophytosis was 9.9 at one year after diagnosis. These odds ratios were associated with decreased time to contralateral CR. Breed, age, body weight, gender, and tibial plateau angle did not significantly influence time to contralateral CR. Conclusion Subsequent contralateral CR is significantly influenced by severity of radiographic stifle effusion and osteophytosis in the contralateral stifle, suggesting that synovitis and arthritic joint degeneration are significant factors in the disease mechanism underlying the arthropathy.