Euan J Mclean, Merianna Foo, Yan S Toh, Benjamin M Kaye, James O Simcock
{"title":"Effect of Plate Inclination and Osteotomy Positioning on Rock-back following Tibial Plateau Levelling Osteotomy in Dogs.","authors":"Euan J Mclean, Merianna Foo, Yan S Toh, Benjamin M Kaye, James O Simcock","doi":"10.1055/s-0044-1787692","DOIUrl":"10.1055/s-0044-1787692","url":null,"abstract":"<p><strong>Objective: </strong> Rock-back is a reported complication following tibial plateau levelling osteotomy (TPLO), whereby tibial plateau angle (TPA) increases postoperatively. The mechanism of rock-back is not fully understood, although a recent <i>ex vivo</i> investigation demonstrated that osteotomy exit cut angle (ECA) and inclination of the plate in the sagittal plane might be risk factors. The purpose of this study was to explore these relationships in a clinical dog population. We hypothesized that dogs with rock-back would have a higher degree of plate inclination and downward ECA compared with those without rock-back.</p><p><strong>Materials and methods: </strong> Medical records and radiographs of dogs that underwent TPLO between January 2021 and January 2022 were retrospectively reviewed. TPA was recorded preoperatively, postoperatively, and at follow-up. Plate inclination, ECA, and descriptive data were collected. Observers measuring TPA were blinded to other variables. Rock-back was defined as a change in TPA ≥ 2.</p><p><strong>Results: </strong> Ninety-five TPLO procedures met the inclusion criteria (<i>n</i> = 87 dogs). Rock-back was identified in 21% of TPLOs (<i>n</i> = 20/95). The mean increase in TPA in the rock-back group was 3.2 ± 2.6. Plate inclination and ECA were not correlated with the presence of rock-back. Descriptive variables did not have a significant correlation with rock-back.</p><p><strong>Conclusion: </strong> Plate inclination and ECA did not have a relationship with rock-back when defined as a postoperative TPA change ≥2 degrees, in this clinical retrospective study.</p>","PeriodicalId":51204,"journal":{"name":"Veterinary and Comparative Orthopaedics and Traumatology","volume":" ","pages":"273-278"},"PeriodicalIF":1.0,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141285293","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Anderson F de Souza, César A M Pereira, Claudio Costa, Anton Fürst, Jan M Kümmerle, André L V De Zoppa
{"title":"Mechanical Properties and Failure Mode of Proximal Screw Fixation Technique Using Locking Compression Plate for Proximal Interphalangeal Arthrodesis in Horses: An Ex Vivo Study.","authors":"Anderson F de Souza, César A M Pereira, Claudio Costa, Anton Fürst, Jan M Kümmerle, André L V De Zoppa","doi":"10.1055/s-0044-1787680","DOIUrl":"10.1055/s-0044-1787680","url":null,"abstract":"<p><strong>Objective: </strong> The aim of this study was to measure the mechanical properties and failure mode of an <i>ex vivo</i> model of proximal interphalangeal arthrodesis in horses with different methods of proximal screw fixation using a locking compression plate.</p><p><strong>Study design: </strong> Pastern joint arthrodesis with a 3-hole 4.5-mm narrow locking compression plate was performed on 20 forelimbs of equine cadavers, randomized into four groups based on the fixation method and type of proximal screw used: unicortical cortex, bicortical cortex, unicortical locking, bicortical locking. Single-cycle axial compression testing was conducted until failure. The frequency of implant plastic deformation was recorded. Bone failure analysis was performed through computed tomography examinations and fractal analysis.</p><p><strong>Results: </strong> There were no differences in the analysed mechanical variables and fractal dimension among the groups. Transarticular screws showed a higher frequency of deformation (75%) regardless of the group. Both unicortical locking and bicortical locking groups deformed the plate more frequently.</p><p><strong>Conclusion: </strong> The type of screw used in the proximal hole of the locking compression plate and its method of anchoring in the proximal phalanx do not affect the mechanical properties of pastern arthrodesis in equine cadavers subjected to single-cycle axial compression tests until failure.</p>","PeriodicalId":51204,"journal":{"name":"Veterinary and Comparative Orthopaedics and Traumatology","volume":" ","pages":"263-272"},"PeriodicalIF":1.0,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141249080","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Eloy H P Curuci, Bruno W Minto, Thais V Magalhães, Luciano P de Barros, Luis Gustavo G G Dias
{"title":"Double-Cut Tibial Plateau Leveling Osteotomy for the Management of Cranial Cruciate Ligament Insufficiency in Dogs with an Excessive Plateau Angle: Early Clinical Results in 16 Dogs.","authors":"Eloy H P Curuci, Bruno W Minto, Thais V Magalhães, Luciano P de Barros, Luis Gustavo G G Dias","doi":"10.1055/s-0044-1790208","DOIUrl":"10.1055/s-0044-1790208","url":null,"abstract":"<p><strong>Objective: </strong> To describe a modification of the tibial plateau leveling osteotomy technique wherein a double cut is made in the same plane to level the tibial plateau (double-cut tibial plateau leveling osteotomy [DCTPLO]) for treating dogs with cranial cruciate ligament (CrCL) and excessive tibial plateau angle (eTPA) diseases.</p><p><strong>Study design: </strong> The DCTPLO technique was performed on 18 stifles in dogs with CrCL and an eTPA (>34°). This study evaluated the accuracy of preoperative planning, feasibility of the technique, postoperative clinical outcomes, radiographic examinations at the postoperative follow-up for the first 120 days, evolution of the tibial plateau angle (TPA), time of union of the osteotomy, apposition of the implants, and possible complications.</p><p><strong>Results: </strong> The described technique proved to be feasible for clinical application, with reproducibility from preoperative planning. An effective reduction in the eTPA levels was observed. The mean preoperative and postoperative TPA values were 39.4° (36°-43.5°) and 6.3° (3°-13°), respectively. Radiographic healing time was 60 days in 17/18 of stifles. Minor complications (not requiring surgical review or clinical treatment) were observed in 4/18 of stifles.</p><p><strong>Conclusion: </strong> The DCTPLO technique was effective for treating CrCL disease with TPA of up to 43.5° in dogs.</p>","PeriodicalId":51204,"journal":{"name":"Veterinary and Comparative Orthopaedics and Traumatology","volume":" ","pages":"297-303"},"PeriodicalIF":1.0,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142127266","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Helka Heikkilä, Vilma Reunanen, Heli K Hyytiäinen, Jouni J T Junnila, Outi Laitinen-Vapaavuori, Pauli Keränen
{"title":"Randomized, Blinded, Controlled Clinical Trial of Polylactide-Collagen Scaffold in Treatment of Shoulder Osteochondritis Dissecans in Dogs.","authors":"Helka Heikkilä, Vilma Reunanen, Heli K Hyytiäinen, Jouni J T Junnila, Outi Laitinen-Vapaavuori, Pauli Keränen","doi":"10.1055/s-0044-1788726","DOIUrl":"10.1055/s-0044-1788726","url":null,"abstract":"<p><strong>Objective: </strong> The aim of our study was to investigate a degradable polylactide-collagen scaffold (COPLA) in the treatment of shoulder osteochondritis dissecans (OCD) in dogs.</p><p><strong>Study design: </strong> The study was a controlled, randomized, blinded clinical trial with a parallel group design with a 1.5-year follow-up. Twenty dogs with uni- or bilateral shoulder OCD (29 shoulders) were randomized to receive a COPLA or arthroscopic debridement only (Control). The outcome of treatment was assessed with gait and stance analysis, passive range of motion measurement, pain and lameness evaluation, Helsinki Chronic Pain Index, and computed tomography (CT).</p><p><strong>Results: </strong> Eighteen dogs (25 shoulders) completed the study. The clinical outcome variables improved significantly from baseline in COPLA and Control groups after treatment but no significant differences emerged between groups. Significantly fewer COPLA than Control shoulders had osteoarthritis (OA) in CT at 6 months (<i>p</i> = 0.019) but the difference was not significant at 1.5 years. At 1.5 years, all dogs were sound and pain-free in joint palpation, but OA was diagnosed in 13/18 dogs (18/25 shoulders) with CT.</p><p><strong>Conclusion: </strong> The results suggest that COPLA scaffold slowed down the development of OA at 6 months but it did not improve the clinical recovery or prevent OA in dogs with shoulder OCD in long-term follow-up at 1.5 years compared with arthroscopic debridement only. Regardless of the treatment method, clinical recovery was good, but OA developed in the majority of dogs.</p>","PeriodicalId":51204,"journal":{"name":"Veterinary and Comparative Orthopaedics and Traumatology","volume":" ","pages":"286-296"},"PeriodicalIF":1.0,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11555192/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141762476","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Christina Obel, Veronica Rondahl, Cecilia Rohdin, Lisa Friling, Annika Bergström
{"title":"Pathology of the Proximal Radius in Juvenile Pugs.","authors":"Christina Obel, Veronica Rondahl, Cecilia Rohdin, Lisa Friling, Annika Bergström","doi":"10.1055/s-0044-1790592","DOIUrl":"https://doi.org/10.1055/s-0044-1790592","url":null,"abstract":"<p><p>The aim of this study was to describe the physeal pathology of the proximal radius in four skeletally immature male Pugs. Physical examination, radiography, and computed tomography (CT) of the thoracic limbs were performed in all four dogs. Two Pugs were available for long-term follow-up and two Pugs were euthanatized after the diagnostic imaging results. Four male Pugs, aged between 6 and 7 months, were presented with a history of thoracic limb lameness lasting 2 to 3 months. Radiography and CT of the thoracic limbs showed irregularity of the proximal radial physes with varying degrees of radiolucency within the adjacent metaphyses. The pathology was associated with elbow joint incongruity and angular deformity of the antebrachium. Two dogs were euthanatized, one of which was autopsied, and histopathology of the proximal radius revealed bilateral physeal dysplasia. At long-term follow-up of the two surviving dogs, lameness had resolved. Radiography and CT scans of the thoracic limbs revealed normal bone opacity within the proximal radius and resolution of the radiolucent areas of the proximal radial physes. However, incongruity of the radioulnar joint remained. In this report, the resolution of identified physeal pathology at the proximal radius in juvenile Pugs demonstrates the potential for spontaneous remission despite the presence of notable radiographic changes.</p>","PeriodicalId":51204,"journal":{"name":"Veterinary and Comparative Orthopaedics and Traumatology","volume":" ","pages":""},"PeriodicalIF":1.0,"publicationDate":"2024-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142300363","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Elbow Osteoarthritis Secondary to Adjacent Bone Remodeling and Fracture.","authors":"Kenneth A Johnson","doi":"10.1055/s-0044-1790529","DOIUrl":"10.1055/s-0044-1790529","url":null,"abstract":"","PeriodicalId":51204,"journal":{"name":"Veterinary and Comparative Orthopaedics and Traumatology","volume":"37 5","pages":"v-vi"},"PeriodicalIF":1.0,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142300364","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Johannes Maximilian Schmutterer, Peter Augat, Markus Greinwald, Andrea Meyer-Lindenberg
{"title":"Evaluation of Meniscal Load and Load Distribution in the Sound Canine Stifle at Different Angles of Flexion.","authors":"Johannes Maximilian Schmutterer, Peter Augat, Markus Greinwald, Andrea Meyer-Lindenberg","doi":"10.1055/s-0044-1782682","DOIUrl":"10.1055/s-0044-1782682","url":null,"abstract":"<p><strong>Objectives: </strong> The aim of the study was to investigate the contact mechanics and kinematic changes in the stifle in different standing angles.</p><p><strong>Study design: </strong> We performed a biomechanical <i>ex vivo</i> study using pairs of canine cadaver hindlimbs. Motion sensors were fixed to the tibia and the femur for kinematic data acquisition. Pressure mapping sensors were placed between the femur and both menisci. Thirty percent bodyweight was applied to the limbs with the stifle in 125, 135, or 145 degrees of extension.</p><p><strong>Results: </strong> Stifle flexion angle influences femoromeniscal contact mechanics significantly. The load on both menisci was significantly higher for 125 and 135 degrees in comparison to 145 degrees. Additionally, the center of force was located significantly more caudal when comparing 125 to 145 degrees in the medial meniscus as well as in both menisci combined.</p><p><strong>Conclusion: </strong> The angle of knee flexion significantly impacts the contact mechanics between the femur and the meniscus. As the knee flexes, the load on both menisci increases.</p>","PeriodicalId":51204,"journal":{"name":"Veterinary and Comparative Orthopaedics and Traumatology","volume":" ","pages":"230-235"},"PeriodicalIF":1.0,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11405098/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140859399","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Paula Lopez de la Oliva, Luke Arnott, Leonor Roses, William Marshall, Davinia Arnott
{"title":"Humeral Condylar Fractures in French Bulldogs: Prevalence of Contralateral Intracondylar Fissure, Treatment, and Outcome.","authors":"Paula Lopez de la Oliva, Luke Arnott, Leonor Roses, William Marshall, Davinia Arnott","doi":"10.1055/s-0044-1785446","DOIUrl":"10.1055/s-0044-1785446","url":null,"abstract":"<p><strong>Objective: </strong> The aim of this study was to report (1) the prevalence of contralateral humeral intracondylar GAP/HIF (HIF) in French Bulldogs with humeral condylar fractures (HCF) and (2) treatment and short- and long-term outcome in French Bulldogs with HCF.</p><p><strong>Materials and methods: </strong> Medical records of French Bulldogs treated surgically for HCF between January 2011 and November 2022 were reviewed. Perioperative imaging, surgical technique, complications, and long-term outcome were assessed.</p><p><strong>Results: </strong> Eighty-nine dogs with HCF were included and 36/89 were diagnosed with HIF. Surgical repair was performed in all HCF and a prophylactic transcondylar screw was placed in 20/36 HIF. For prophylactic transcondylar screw placement, two dogs required immediate revision surgery. Complications occurred in 12/89 HCF, and there were major complications in 6/89 HCF. Long-term outcome evaluated by owner questionnaire (<i>n</i> = 27) was rated as being excellent in 18/27 dogs, good in 8/27 dogs, and fair in 1/27 dogs.</p><p><strong>Clinical significance: </strong> Forty percent of French Bulldogs with HCF had a contralateral HIF. HIF as a cause of HCF should be considered in the French Bulldog, and a computed tomography (CT) scan of both elbows may be advisable prior to HCF repair. The complication rate of HCF surgery in the French Bulldog is significant.</p>","PeriodicalId":51204,"journal":{"name":"Veterinary and Comparative Orthopaedics and Traumatology","volume":" ","pages":"236-242"},"PeriodicalIF":1.0,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11405096/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140855818","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Rebecca L Jones, Andrew W Tomlinson, Duncan M Barnes, Rebecca S Hood, Jamie P McClement, Daniel M Ogden, Mark A Owen, Jeremy R Onyett, Myles B Walton
{"title":"Clinical Assessment of a Lateral Epicondylar Anatomical Plate for the Stabilization of Humeral Condylar Fractures in Dogs.","authors":"Rebecca L Jones, Andrew W Tomlinson, Duncan M Barnes, Rebecca S Hood, Jamie P McClement, Daniel M Ogden, Mark A Owen, Jeremy R Onyett, Myles B Walton","doi":"10.1055/s-0044-1786181","DOIUrl":"10.1055/s-0044-1786181","url":null,"abstract":"<p><strong>Objective: </strong> To report the use of a Lateral Epicondylar Anatomical Plate for the management of humeral condylar fractures (HCF) in dogs.</p><p><strong>Study design: </strong> Medical records of dogs with HCF stabilized using the Lateral Epicondylar Anatomical Plate at six UK veterinary referral centres between April 2018 and February 2021 were reviewed. Long-term follow-up (>6 months) was obtained via owner questionnaire, which incorporated the Liverpool Osteoarthritis in Dogs clinical metrology instrument.</p><p><strong>Results: </strong> Sixty-two HCF were treated in 61 dogs (44 lateral condylar fractures [LCF] and 18 intracondylar (T/Y) fractures [ICF]). Fifty-one dogs were Spaniels or Spaniel crossbreeds. Intraoperative contouring of the plate was required for one dog-a French Bulldog. Postoperative complications occurred in 14/42 LCF and 6/18 ICF; overall there were 14 minor, 8 major, and 2 catastrophic complications. On final follow-up imaging, there was evidence of partial or complete osseous continuity of the condylar part of the fracture 32/53 HCF (24/39 LCF and 8/14 ICF) and lateral epicondylar part of the fracture in 53/53 HCF (39/39 LCF and 14/14 ICF). At final reexamination, 20/28 dogs with LCF and 5/13 dogs with ICF were not lame and the remaining dogs demonstrated mild lameness. According to the owner questionnaire, 17/17 dogs with LCF and 8/10 dogs with ICF returned to full limb use and median Liverpool Osteoarthritis in Dogs scores were 2/52 for LCF and 6.5/52 for ICF.</p><p><strong>Conclusion: </strong> The Lateral Epicondylar Anatomical Plate can be used successfully for the surgical stabilization of HCF in dogs.</p>","PeriodicalId":51204,"journal":{"name":"Veterinary and Comparative Orthopaedics and Traumatology","volume":" ","pages":"243-250"},"PeriodicalIF":1.0,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140867996","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Luke F Ellis, Arthur K House, Kiyoko Shimura, Mika Frances
{"title":"Comparison of Hounsfield Units within the Humeral Trochlea and Medial Coronoid Process in a Population of Labrador X Golden Retriever Guide Dogs and Border Collies.","authors":"Luke F Ellis, Arthur K House, Kiyoko Shimura, Mika Frances","doi":"10.1055/s-0043-1778631","DOIUrl":"10.1055/s-0043-1778631","url":null,"abstract":"<p><strong>Objective: </strong> The aim of this study was to determine if variations in Hounsfield units (HU) are present within the elbow between asymptomatic dogs of two breeds of dogs susceptible to elbow dysplasia.</p><p><strong>Study design: </strong> Guide Dogs and Border Collies that presented for routine computed tomography (CT) screening for elbow dysplasia prior to breeding were evaluated. All dogs had no documented history of lameness. Dogs diagnosed with CT as being free of elbow dysplasia were included. The CT images were randomized and assessed by three blinded observers. A standardised approach to CT image reconstruction to create consistent image planes was used. Hounsfield units were measured within a standardised region of interest (ROI) at the humeral trochlea and medial coronoid process. The minimum, mean and maximum HU within each ROI was recorded.</p><p><strong>Results: </strong> Eighty-six elbows were included in the study with 32 Guide Dogs, and 11 Border Collies. Guide Dogs had significantly higher minimum (99.75 HU, 95% confidence interval [CI]: 15.02-184.48, <i>p</i> = 0.022), mean (115.09 HU, 95% CI: 80.53-149.64, <i>p</i> < 0.01) and maximum (74.00 HU, 95% CI: 44.58-103.42, <i>p</i> < 0.01) difference in HU within the medial coronoid process ROI, and significantly higher mean (146.49 HU, 95% CI: 100.12-192.87, <i>p</i> < 0.01) and maximum (147.77 HU, 95% CI: 102.57-192.97, <i>p</i> < 0.01) difference in HU within the humeral trochlea ROI.</p><p><strong>Conclusion: </strong> In this dataset breed variations in elbow HU were present between asymptomatic Guide Dogs and Border Collies. This needs to be considered in breeding screening programmes to avoid over-interpretation of elbow sclerosis, in the absence of elbow pathology.</p>","PeriodicalId":51204,"journal":{"name":"Veterinary and Comparative Orthopaedics and Traumatology","volume":" ","pages":"223-229"},"PeriodicalIF":1.0,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140050915","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}