Veterinary and Comparative Orthopaedics and Traumatology最新文献_第2页

Total Elbow Replacement in Swine: Surgical Technique and Initial Clinical Experience in a Kunekune Sow. 猪全肘关节置换术：手术技术和国营母猪的初步临床经验。

IF 1 2区农林科学

Veterinary and Comparative Orthopaedics and Traumatology Pub Date : 2025-05-01 Epub Date: 2024-11-15 DOI: 10.1055/s-0044-1793852

Santiago Mejia H, Rebecca C McOnie, Sean D Bellefeuille, Selena Tinga, Laurent P Guiot

{"title":"Total Elbow Replacement in Swine: Surgical Technique and Initial Clinical Experience in a Kunekune Sow.","authors":"Santiago Mejia H, Rebecca C McOnie, Sean D Bellefeuille, Selena Tinga, Laurent P Guiot","doi":"10.1055/s-0044-1793852","DOIUrl":"10.1055/s-0044-1793852","url":null,"abstract":"Objective: The aim of this study was to describe the development of a total elbow replacement (TER) technique in swine and report the outcome of TER in a Kunekune sow (61 kg) with severe elbow osteoarthritis.Methods: The technique was developed by operating on three pig cadavers (Yorkshire 40-50 kg). The TATE Elbow implant fit was confirmed with modeling to the patient's computed tomography imaging. Patient-specific instrumentation was printed for attempted use. Total elbow replacement was performed using a lateral approach, including lateral epicondylar osteotomy, careful retraction of the radial nerve, and preservation of the lateral collateral ligament. Postoperative care included controlled exercise and physical therapy.Results: A lateral approach to the pig elbow for TATE TER was successfully developed. The bulk of the lateral head of the triceps muscle precluded use of the patient-specific instrumentation; the procedure was performed using standard instrumentation. Radiographic evidence up to 9 months postoperatively showed adequate implant alignment and satisfactory osteointegration of humeral and radioulnar components. There were not any postoperative complications and the patient's comfort was improved by 6 months and sustained at 18 months.Conclusion: A lateral approach for TATE TER in a pig with advanced elbow osteoarthritis proved feasible and effective. With the expansion of the TATE Elbow line, it is possible that a larger range of pigs could be treated. This report suggests that a lateral approach for TATE TER in dogs could represent a suitable alternative to the medial approach currently used.","PeriodicalId":51204,"journal":{"name":"Veterinary and Comparative Orthopaedics and Traumatology","volume":" ","pages":"135-143"},"PeriodicalIF":1.0,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142640222","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}

引用次数: 0

Surgical Approaches to the Canine Radius. 犬桡骨的手术入路。

IF 1 2区农林科学

Veterinary and Comparative Orthopaedics and Traumatology Pub Date : 2025-05-01 Epub Date: 2025-05-13 DOI: 10.1055/a-2588-7871

Kenneth A Johnson

引用次数: 0

Effect of Plate Screw Configuration on Construct Stiffness and Plate Strain in a Synthetic Short Fragment Small Gap Fracture Model Stabilized with a 12-Hole 3.5-mm Locking Compression Plate. 在使用 12 孔 3.5 毫米锁定加压钢板稳定的合成短片小间隙骨折模型中，钢板螺钉配置对结构刚度和钢板应变的影响。

IF 1 2区农林科学

Veterinary and Comparative Orthopaedics and Traumatology Pub Date : 2025-05-01 Epub Date: 2024-10-04 DOI: 10.1055/s-0044-1791701

Fabian N Trefny, Mark R Glyde, Giselle L Hosgood, Robert E Day, Alex Hayes

{"title":"Effect of Plate Screw Configuration on Construct Stiffness and Plate Strain in a Synthetic Short Fragment Small Gap Fracture Model Stabilized with a 12-Hole 3.5-mm Locking Compression Plate.","authors":"Fabian N Trefny, Mark R Glyde, Giselle L Hosgood, Robert E Day, Alex Hayes","doi":"10.1055/s-0044-1791701","DOIUrl":"10.1055/s-0044-1791701","url":null,"abstract":"Objective: The aim of the study was to determine the effect of a short and long working length screw configuration on construct stiffness and plate strain in a synthetic, short fragment, small gap fracture model stabilized with a 12-hole 3.5-mm locking compression plate (LCP).Study design: Six replicates of short and long working length constructs on a short fragment, small gap fracture model underwent four-point bending. Construct stiffness and plate strain were compared across working length and along the plate.Results: With the LCP on the compression surface (compression bending), the short working length had a significantly higher construct stiffness and lower plate strain than the long working length. Conversely, with the LCP on the tension surface (tension bending), transcortical contact between 150 and 155 N induced load sharing at the fracture gap, which significantly increased construct stiffness and decreased plate strain in the long working length. At 100 N (precontact), the short working length had a significantly higher construct stiffness and lower plate strain than the long working length, comparable with our compressing bending results.Conclusion: In compression bending, and before transcortical contact occurred in tension bending, the short working length had a significantly higher construct stiffness and lower plate strain than the long working length. Load sharing due to transcortical contact observed in our model in tension bending will vary with fracture gap, working length, and loading condition. These results must be interpreted with caution when considering clinical relevance or potential in vivo biomechanical advantages.","PeriodicalId":51204,"journal":{"name":"Veterinary and Comparative Orthopaedics and Traumatology","volume":" ","pages":"119-126"},"PeriodicalIF":1.0,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142376205","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}

引用次数: 0

Comparative Analysis of 3D-Printed Drill Guides and Minimally Invasive Osteosynthesis in Feline Sacroiliac Luxation: A Cadaveric Study. 猫骶髂脱位的尸体研究：3d打印钻头与微创植骨术的对比分析。

IF 1 2区农林科学

Veterinary and Comparative Orthopaedics and Traumatology Pub Date : 2025-04-30 DOI: 10.1055/a-2590-9143

Radu Mircea Scortea, Fee Marie Fohrmann, Cosmin Muresan, Alexandru Gabriel Neagu, Niculae Tudor, Maximiljan W Krauss

{"title":"Comparative Analysis of 3D-Printed Drill Guides and Minimally Invasive Osteosynthesis in Feline Sacroiliac Luxation: A Cadaveric Study.","authors":"Radu Mircea Scortea, Fee Marie Fohrmann, Cosmin Muresan, Alexandru Gabriel Neagu, Niculae Tudor, Maximiljan W Krauss","doi":"10.1055/a-2590-9143","DOIUrl":"10.1055/a-2590-9143","url":null,"abstract":"This study was conducted to evaluate the efficacy of a 3D-printed drill guide technique (3D-DGT) in facilitating sacroiliac screw placement in feline cadavers with sacroiliac luxation (SIL), compared with minimally invasive osteosynthesis (MIO). Additionally, the accuracy and precision of implant placement in relation to preoperative planning were evaluated.Bilateral SIL was created in 14 feline cadavers, followed by preoperative CT scans. For both techniques, preoperative planning was performed, and 2.4-mm screws were implanted. Postoperative CT scans were then performed to evaluate screw placement accuracy, entry point translation (EPT), and the maximum angular screw deviation (MASD) in dorsal and transverse planes.In the lateral plane, the median (IQR) EPT (in mm) with MIO significantly differed from that with 3D-DGT on the y-axis (dorsoventral direction) from the planned entry location (Mann-Whitney U test, U = 42.5, Z = -2.55, p = 0.009). However, no significant differences were noted on the x-axis (craniocaudal direction) from the planned entry location (Mann-Whitney U test, U = 60, Z = -1.76, p = 0.08). Median (IQR) MASD did not differ significantly between MIO and 3D-DGT in either dorsal or transverse planes (Mann-Whitney U test, U = 77, Z = -0.98, p = 0.34; U = 64, Z = -1.57, p = 0.12, respectively).The use of 3D-DGT lead to fewer suboptimal placements compared with MIO (7.14% versus 42.85%), though the difference was not statistically significant.","PeriodicalId":51204,"journal":{"name":"Veterinary and Comparative Orthopaedics and Traumatology","volume":" ","pages":""},"PeriodicalIF":1.0,"publicationDate":"2025-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143998478","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}

引用次数: 0

Temporary Transarticular Immobilization of the Stifle Joint Using a Locking Plate. 用锁定钢板对膝关节进行临时经关节固定。

IF 1 2区农林科学

Veterinary and Comparative Orthopaedics and Traumatology Pub Date : 2025-04-30 DOI: 10.1055/a-2577-1520

Ida Forzisi, Alessio Raschi, Aldo Vezzoni, Luca Vezzoni

{"title":"Temporary Transarticular Immobilization of the Stifle Joint Using a Locking Plate.","authors":"Ida Forzisi, Alessio Raschi, Aldo Vezzoni, Luca Vezzoni","doi":"10.1055/a-2577-1520","DOIUrl":"https://doi.org/10.1055/a-2577-1520","url":null,"abstract":"Our study aims to describe the surgical technique for temporary transarticular immobilization of the stifle joint using a locking plate and evaluate complications and outcomes.The medical records of dogs and cats that underwent transarticular immobilization of the stifle joint using a locking plate in two institutions from August 2018 to January 2024 were retrospectively evaluated.After managing the primary injury, a locking plate was contoured to fit the medial surface of the distal femur and proximal tibia, limiting the implant to the distal third of the femur and proximal third of the tibia, with immobilization at a 135 to 145-degree angle.Temporary transarticular immobilization of the stifle joint was performed in 16 stifle joints in 14 patients, with two dogs undergoing bilateral surgery. The transarticular implants were removed at a mean time of 55,86 ± 18,05 days postoperatively (median: 58, range: 27-96 days). No intraoperative complications were recorded. One major complication was recorded in a Galgo Espanol with a patellar fracture and patellar ligament lesion in which plate breakage was recorded 19 days after surgery, requiring early plate removal and application of an orthosis for 3 weeks. Four minor complications were recorded.Preliminary results suggest that a transarticular locking plate is effective for temporary stifle immobilization, with a low morbidity and complication rate. Dedicated implants should be developed to decrease the risk of plate failure.","PeriodicalId":51204,"journal":{"name":"Veterinary and Comparative Orthopaedics and Traumatology","volume":" ","pages":""},"PeriodicalIF":1.0,"publicationDate":"2025-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144051409","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}

引用次数: 0

Incidence of Medial Meniscus Injury Detected by Arthroscopy in Toy Breed Dogs (≤5 kg) with Cranial Cruciate Ligament Rupture. 玩具犬（≤5kg）颅内交叉韧带断裂后关节镜检测内侧半月板损伤的发生率

IF 1 2区农林科学

Veterinary and Comparative Orthopaedics and Traumatology Pub Date : 2025-04-15 DOI: 10.1055/a-2564-9008

Yuki Kikuchi, Masakazu Shimada, Ayaka Honnami, Hiroyuki Akagi, Fumitaka Takahashi, Shinya Yamaguchi

{"title":"Incidence of Medial Meniscus Injury Detected by Arthroscopy in Toy Breed Dogs (≤5 kg) with Cranial Cruciate Ligament Rupture.","authors":"Yuki Kikuchi, Masakazu Shimada, Ayaka Honnami, Hiroyuki Akagi, Fumitaka Takahashi, Shinya Yamaguchi","doi":"10.1055/a-2564-9008","DOIUrl":"https://doi.org/10.1055/a-2564-9008","url":null,"abstract":"To investigate the frequency and factors of medial meniscal injury (MMI) associated with cranial cruciate ligament rupture (CrCLR) in toy breed dogs by arthroscopic evaluation.Toy breed dogs (≤5 kg) diagnosed with CrCLR using stifle arthroscopy were included. Age, sex, body weight, breed, medial patellar luxation grade, degree of lameness at diagnosis, and duration of lameness until diagnosis were obtained from medical records. The tibial plateau angle was evaluated using preoperative radiography. On arthroscopic evaluation, degree of CrCLR was classified as partial or complete; MMI was classified as no, mild, or severe injury. MMI grade was used as objective variable; ordered logistic regression was used, and the final model was created using forward-backward stepwise selection.Overall, 202 stifles of 178 dogs were evaluated. Arthroscopic evaluation revealed partial and complete CrCLR, and MMI in 58, 144, and 74 stifles, respectively. MMI with mild and severe damage was noted in 50 and 24 stifles, respectively. Final model included body weight, lameness score, and degree of cranial cruciate ligament damage. A grade 3 lameness score had a higher MMI factor than grade 1. Higher body weight was associated with MMI, and complete rupture had a higher MMI factor than partial tears.Arthroscopic evaluation of CrCLR cases showed MMI in toy breed dogs. Cases with complete CrCLR or severe lameness are at high risk of MMI and should be evaluated cautiously.","PeriodicalId":51204,"journal":{"name":"Veterinary and Comparative Orthopaedics and Traumatology","volume":" ","pages":""},"PeriodicalIF":1.0,"publicationDate":"2025-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144057545","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}

引用次数: 0

Development and Finite Element Analysis of a Patient-Specific Implant for Atlantoaxial Joint Stabilization via Dorsal Approach in Dogs. 犬经背侧入路固定寰枢关节的患者特异性植入物的研制与有限元分析。

IF 1 2区农林科学

Veterinary and Comparative Orthopaedics and Traumatology Pub Date : 2025-04-02 DOI: 10.1055/a-2551-3374

Adan Peres Cabreira, Gabriel Antonio Covino Diamante, Thales Bregadioli, Mônica Vicky Bahr Arias

{"title":"Development and Finite Element Analysis of a Patient-Specific Implant for Atlantoaxial Joint Stabilization via Dorsal Approach in Dogs.","authors":"Adan Peres Cabreira, Gabriel Antonio Covino Diamante, Thales Bregadioli, Mônica Vicky Bahr Arias","doi":"10.1055/a-2551-3374","DOIUrl":"https://doi.org/10.1055/a-2551-3374","url":null,"abstract":"Objective: To develop a patient-specific implant designed for dorsal access instrumentation, which also serves as a guide for screw insertion, for use in dogs with atlantoaxial instability. The implant must demonstrate no failure in finite element analysis.Study design: The development of an implant utilizing computational resources based on a computed tomography scan of a patient with atlantoaxial instability. The final implant model was analysed using finite element methods in flexion, extension, lateral flexion, and torsion to evaluate stress distribution and displacement.Results: A patient-specific implant for dorsal instrumentation was developed, featuring six holes for the insertion of 1.7-mm bicortical locking screws, including two transarticular screws and two additional screws per vertebra. The implant demonstrated a maximum stress point of 425 MPa, well below the material yield strength of 880 MPa, with a maximum displacement of only 0.13 mm.Conclusion: The proposed implant shows promise as it can function as a drilling guide, potentially enhancing safety during instrumentation. Using safe corridors may improve the rigidity of the construct. The implant model did not exhibit any failure when subjected to finite element analysis according to the established criteria.","PeriodicalId":51204,"journal":{"name":"Veterinary and Comparative Orthopaedics and Traumatology","volume":" ","pages":""},"PeriodicalIF":1.0,"publicationDate":"2025-04-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143774704","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}

引用次数: 0

Medial Meniscal Tears Increase Risk of Moderate to Severe Cartilage Damage to the Medial Femoral Condyle. 内侧半月板撕裂会增加股骨内侧髁软骨中度至重度损伤的风险。

IF 1 2区农林科学

Veterinary and Comparative Orthopaedics and Traumatology Pub Date : 2025-03-13 DOI: 10.1055/a-2542-2200

Shannon L Campbell, Samuel P Franklin

{"title":"Medial Meniscal Tears Increase Risk of Moderate to Severe Cartilage Damage to the Medial Femoral Condyle.","authors":"Shannon L Campbell, Samuel P Franklin","doi":"10.1055/a-2542-2200","DOIUrl":"https://doi.org/10.1055/a-2542-2200","url":null,"abstract":"The objective of this study was to evaluate the relationship between displaceable meniscal tears of the medial meniscus, such as bucket handle tears and flap tears, and articular cartilage wear of the medial femoral condyle.Articular cartilage was scored at the time of arthroscopy and tibial plateau leveling osteotomy as normal, mild, moderately, or severely damaged based on the modified Outerbridge classification system. Dogs with complete cranial cruciate ligament rupture were included; there were 245 stifles in total and 116 had a concurrent displaceable meniscal tear consisting of 115 bucket handle tears and 1 flap tear. Stifles were classified as either having no/mild or moderate/severe cartilage wear. The frequency of moderate/severe wear was compared between stifles with normal menisci and stifles with displaceable meniscal tears using a Fisher's exact test.Stifles with displaceable meniscal tears had a significantly higher frequency of moderate/severe cartilage wear of the medial femoral condyle in comparison to stifles with normal menisci (p = 0.009).These findings suggest that dogs with cranial cruciate ligament rupture and concurrent bucket handle tears may increase the risk of moderate to severe cartilage injury to the medial femoral condyle.","PeriodicalId":51204,"journal":{"name":"Veterinary and Comparative Orthopaedics and Traumatology","volume":" ","pages":""},"PeriodicalIF":1.0,"publicationDate":"2025-03-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143626948","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}

引用次数: 0

A Retrospective Study of Risk Factors Associated with Refracture after Repair of Radial-Ulnar Fractures in Small-Breed Dogs. 小型犬桡尺骨骨折修复后再骨折相关风险因素的回顾性研究

IF 1 2区农林科学

Veterinary and Comparative Orthopaedics and Traumatology Pub Date : 2025-03-01 Epub Date: 2024-08-29 DOI: 10.1055/s-0044-1790218

Norihiro Muroi, Nobuo Kanno, Yasuji Harada, Yasushi Hara

{"title":"A Retrospective Study of Risk Factors Associated with Refracture after Repair of Radial-Ulnar Fractures in Small-Breed Dogs.","authors":"Norihiro Muroi, Nobuo Kanno, Yasuji Harada, Yasushi Hara","doi":"10.1055/s-0044-1790218","DOIUrl":"10.1055/s-0044-1790218","url":null,"abstract":"Objective: The aim of this study was to identify risk factors for refracture after radial union in small-breed dogs.Study design: In our retrospective study, medical records of radial-ulnar fracture cases in small dogs treated with plates and screws were reviewed. General information and postoperative course (days until confirmed radial fracture healing, with or without ulnar union, time to final follow-up, with or without plate removal and refracture) were recorded. The fracture line location, screw positions, radial thickness and width, and pixel values throughout the postoperative periods were obtained from the radiographs. The affected limbs were classified into non-plate removal (P) and plate removal (R) groups.Results: Refracture occurred in 5 of the 141 limbs at the most distal screw in the P group and 5 of the 40 limbs at the same site as the initial fracture in the R group. Multivariate analysis indicated that refracture was linked to the amount of relative change with growth in the position of the most distal screw in the P group, with pixel value and radial thickness ratios at the same site as the initial fracture in the R group.Conclusion: Reducing the screw diameter relative to the radial width to the appropriate extent may be considered in cases where the screw positioned at the most distal end of the radius is expected to be relatively proximal as the distal radius grows; not removing the plate may be considered in cases with a decreased radial thickness or bone mineral density beneath the plate during plate removal.","PeriodicalId":51204,"journal":{"name":"Veterinary and Comparative Orthopaedics and Traumatology","volume":" ","pages":"77-86"},"PeriodicalIF":1.0,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142114540","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}

引用次数: 0

Comparison of Bending Stiffness between String of Pearls Plate-Bone Substitute Constructs with and without Bending Tees in a Fracture Gap Model. 在断裂间隙模型中，有无弯曲三通的珍珠串板骨替代结构的弯曲刚度比较

IF 1 2区农林科学

Veterinary and Comparative Orthopaedics and Traumatology Pub Date : 2025-03-01 Epub Date: 2024-09-20 DOI: 10.1055/s-0044-1790209

Pei-Han Lu, Kayla M Corriveau, Ramsis Farag, Erik H Hofmeister, Kendon Kuo, Brad M Matz

{"title":"Comparison of Bending Stiffness between String of Pearls Plate-Bone Substitute Constructs with and without Bending Tees in a Fracture Gap Model.","authors":"Pei-Han Lu, Kayla M Corriveau, Ramsis Farag, Erik H Hofmeister, Kendon Kuo, Brad M Matz","doi":"10.1055/s-0044-1790209","DOIUrl":"10.1055/s-0044-1790209","url":null,"abstract":"Objective: The aim of this study was to compare the bending properties of String of Pearls plate-bone substitute constructs with and without bending tees in the nodes over a simulated fracture gap. It is hypothesized that the constructs with tees will have higher bending stiffness.Study design: Acetal polymer tubes and 12-hole, 3.5-mm String of Pearls plates were used to create plate-bone substitute constructs simulating stabilization in a bridging fashion over a 45-mm gap. Twenty-four constructs were made with 12 containing tees in the nodes over the fracture gap. Single-cycle load-to-failure 4-point bending was performed in mediolateral and craniocaudal planes. Bending stiffness was compared with a t-test (p < 0.05).Results: All plate-bone substitute constructs had a permanent loss of structural integrity via plastic deformation of the plate. The bending stiffness (mean ± standard deviation) of the craniocaudal group was 59.11 ± 1.98 N/mm with tees and 59.25 ± 1.69 N/mm without tees (p = 0.88). In the mediolateral group, the bending stiffness was 43.17 ± 0.75 N/mm with tees and 41.09 ± 0.91 N/mm without tees (p = 0.0042).Conclusion: In 4-point bending, the plate-bone substitute constructs with tees had equivalent bending stiffness in the craniocaudal plane and increased bending stiffness in the mediolateral plane. However, with a small absolute difference in values, the clinical significance is unclear. Future studies for cyclic bending, torsional, and axial compression tests should be performed to further investigate the value of tees in the nodes over a comminuted or gap fracture repaired in a bridging fashion.","PeriodicalId":51204,"journal":{"name":"Veterinary and Comparative Orthopaedics and Traumatology","volume":" ","pages":"71-76"},"PeriodicalIF":1.0,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142300361","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}

引用次数: 0