G Guerri, L Bandera, P Straticò, A Palozzo, L Di Nunzio, G Celani, V Varasano, M Vignoli, L Petrizzi
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引用次数: 0
Abstract
Background: Superficial digital flexor tendon (SDFT) injuries cause progressive loss of its mechanical properties. Two-dimensional shear wave elastography (2D-SWE) provides information about tissue stiffness.
Objective: To determine the feasibility, repeatability, and reproducibility of 2D-SWE of healthy and pathological forelimb SDFT.
Study design: Prospective observational cohort study.
Methods: Horses were divided into a noninjured Group (H) and a Group with tendinopathy of the SDFT (P). 2D-SWE of both fore SDFTs was performed at three metacarpal levels (A, B, and C, from proximal to distal). Qualitative and quantitative assessments were performed by two operators, and interobserver agreement was calculated. Differences between Group H and P, and between the affected and unaffected limbs of Group P and with Group H were analysed. Statistical analysis was performed with SPSS IBM. Statistical significance was set for p < 0.05.
Results: Thirty horses were enrolled (13 in Group H, 17 in Group P). Interobserver agreement was excellent to good. Qualitatively, in Group H, SDFT was from light to marked blue; in Group P, it appeared marked blue. Quantitatively, Group H had lower median mean shear wave velocity (SWV, m/s) and Young's modulus (kPa) at levels B and C (SWV: 8.19 and 8.27 m/s vs. 8.47 and 8.48 m/s; Young's modulus: 299.21 and 204 kPa vs. 216.03 and 214.44 kPa). In longitudinal scans, the unaffected limbs of Group P were different from the affected limb and from Group H at level B and in the transverse scan. The affected limbs of Group P were different from Group H in the transverse scan at levels B and C.
Main limitations: Low sample size, examination of naturally occurring lesions, observational nature.
Conclusions: 2D-SWE is feasible as a supplementary diagnostic method for detecting SDFT tendinopathies. Clinically healthy SDFTs exhibit lower SWV and Young's modulus values, suggesting less stiffness.
背景：浅表指屈肌腱（SDFT）损伤导致其机械性能的逐渐丧失。二维剪切波弹性图（2D-SWE）提供了有关组织刚度的信息。目的：探讨健康和病理性前肢SDFT的2D-SWE的可行性、可重复性和再现性。研究设计：前瞻性观察队列研究。方法：将马分为未损伤组(H)和SDFT肌腱病变组(P)。从近端到远端，在三个掌骨节段（a、B、C）对两前SDFT进行2D-SWE。由两名操作者进行定性和定量评估，并计算观察者间的一致性。分析H组与P组、P组与H组患肢与未患肢的差异。采用SPSS IBM软件进行统计学分析。结果：共入组马30匹（H组13匹，p组17匹）。观察员间的一致意见是极好的。定性上，H组SDFT由浅到显蓝；P组出现蓝色标记。在数量上，H组在B和C水平下的平均横波速度（SWV, m/s）和杨氏模量（kPa）中位数较低（SWV: 8.19和8.27 m/s vs. 8.47和8.48 m/s；杨氏模量：299.21和204 kPa vs. 216.03和214.44 kPa）。在纵向扫描中，P组未受影响的肢体在B水平和横向扫描上与H组不同。P组患肢B级和c级横断面扫描与H组不同。主要局限性：样本量小，检查为自然发生的病变，属于观察性。结论：2D-SWE作为SDFT肌腱病变的辅助诊断方法是可行的。临床健康的SDFTs表现出较低的SWV和杨氏模量值，表明较低的刚度。
期刊介绍：
Equine Veterinary Journal publishes evidence to improve clinical practice or expand scientific knowledge underpinning equine veterinary medicine. This unrivalled international scientific journal is published 6 times per year, containing peer-reviewed articles with original and potentially important findings. Contributions are received from sources worldwide.
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