CN112155557A - 一种膝关节侧副韧带损伤检测装置 - Google Patents
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Abstract
本发明公开了一种膝关节侧副韧带损伤检测装置,包括胫骨陀螺仪组件和上位机,所述胫骨陀螺仪组件贴于胫骨结节处,所述胫骨陀螺仪组件与上位机通讯连接;所述胫骨陀螺仪组件用于检测胫骨相对股骨的内外翻角度数据并传输到上位机,所述上位机用于根据采集的内外翻角度数据,分析出胫骨在膝关节侧方应力试验中的内外翻角度。本发明装置通过测定膝关节内外翻角度来评估侧副韧带损伤分度,从而解决临床上侧副韧带损伤分度的难题。
Description
技术领域
本发明涉及损伤检测技术领域,特别是涉及一种膝关节侧副韧带损伤检测装置。
背景技术
膝关节内、外侧副韧带是膝部常见的韧带损伤之一,也是容易漏诊、误诊的常见韧带损伤。膝部侧副韧带损伤后由于误诊、漏诊未采取适当治疗,损伤的侧副韧带不易愈合,导致韧带功能丧失,容易导致膝关节稳定性降低,继而出现膝关节不稳、膝部其他韧带损伤、骨性关节炎等并发症,导致疼痛和关节功能障碍。
临床上诊断膝关节内、外侧副韧带损伤主要有膝关节磁共振(MRI)检查、膝关节应力位X线片和膝关节侧方应力试验,膝关节磁共振可明确侧副韧带损伤,但无法进行损伤程度分级,膝关节应力位X线片可通过膝关节内外侧间隙明显增宽诊断侧副韧带损伤,但检查者需在X线照射条件下行膝关节侧方应力试验,操作不便且有X线辐射。临床上侧副韧带损伤按损伤程度可分成3度:Ⅰ度,双膝关节内外侧间隙差值<3mm,侧副韧带浅层撕裂;Ⅱ度,双膝关节内外侧间隙差值3-5mm,侧副韧带部分损伤,可能找到牢靠的止点;Ⅲ度,双膝关节内外侧间隙差值>5mm,侧副韧带完全撕裂,不能找到牢靠的止点。进行膝关节侧方应力试验检查时,于膝关节完全伸直位与屈曲20-30°位做被动膝关节内翻与外翻动作,并与对侧进行比较。如检查过程中患者有膝部疼痛,或出现内外侧间隙增大并有弹跳感时,提示膝关节侧副韧带损伤。
综上所述,膝关节侧副韧带损伤的诊断分度主要由临床医生查体时主观判断,在检查侧方应力试验时存在较多主观因素与不可避免的问题,如检查结果的判断与不同检查者的临床经验、查体时操作是否规范有关。因此,如何客观、准确、快捷判断侧方应力试验的结果成为临床上一个亟待解决的问题,从而减少膝部侧副韧带损伤后的误诊、漏诊。
发明内容
本发明针对现有检查侧副韧带损伤的方法的不足,提出了一种基于陀螺仪传感器的膝关节侧副韧带损伤检测装置,通过检测胫骨的角运动,能量化判定侧副韧带的损伤程度,为侧副韧带损伤分度提供精准支持。
本发明是通过下述技术方案来解决上述技术问题的:
本发明提供一种膝关节侧副韧带损伤检测装置,其特点在于,其包括胫骨陀螺仪组件和上位机,所述胫骨陀螺仪组件贴于胫骨结节处,所述胫骨陀螺仪组件与上位机通讯连接;
所述胫骨陀螺仪组件用于检测胫骨相对股骨的内外翻角度数据并传输到上位机,所述上位机用于根据采集的内外翻角度数据,分析出胫骨在膝关节侧方应力试验中的内外翻角度。
较佳地,所述胫骨陀螺仪组件包括MEMS陀螺仪传感器、电源和管理模组、采样计算模块、存储器、无线通讯模组,所述电源和管理模组分别与MEMS陀螺仪传感器和采样计算模块电连接,所述MEMS陀螺仪传感器与采样计算模块电连接,所述采样计算模块与无线通讯模组电连接,所述采样计算模块与存储器电连接,所述无线通讯模组与上位机通讯连接。
较佳地,所述无线通讯模组为蓝牙发射模块或WIFI发射模块。
较佳地,所述采样计算模块用于对MEMS陀螺仪传感器采集的内外翻角度数据进行标定,并将标定后的内外翻角度数据通过无线通讯模组传输到上位机。
在符合本领域常识的基础上,上述各优选条件,可任意组合,即得本发明各较佳实例。
本发明的积极进步效果在于:
本发明装置通过测定膝关节内外翻角度来评估侧副韧带损伤分度,从而解决临床上侧副韧带损伤分度的难题。
附图说明
图1为本发明侧副韧带损伤检测装置的结构示意图;
图2为图1中装置的硬件组成框图;
图3为本发明侧副韧带损伤检测的流程图;
图4a为侧副韧带损伤试验方法示意图;
图4b为外翻试验示意图。
具体实施方式
为使本发明实施例的目的、技术方案和优点更加清楚,下面将结合本发明实施例中的附图,对本发明实施例中的技术方案进行清楚、完整地描述,显然,所描述的实施例是本发明一部分实施例,而不是全部的实施例。基于本发明中的实施例,本领域普通技术人员在没有做出创造性劳动的前提下所获得的所有其他实施例,都属于本发明保护的范围。
如图1所示,本实施例提供一种膝关节侧副韧带损伤检测装置,其包括胫骨陀螺仪组件1和上位机2,所述胫骨陀螺仪组件1贴于胫骨结节处,所述胫骨陀螺仪组件1与上位机2通讯连接。
所述胫骨陀螺仪组件1用于检测胫骨相对股骨的内外翻角度数据并传输到上位机2,所述上位机2用于根据采集的内外翻角度数据,分析出胫骨在膝关节侧方应力试验中的内外翻角度。
其中,如图2所示,所述胫骨陀螺仪组件1包括MEMS陀螺仪传感器1a、电源和管理模组1b、采样计算模块1c、存储器1d、无线通讯模组1e,所述电源和管理模组1b分别与MEMS陀螺仪传感器1a和采样计算模块1c电连接,所述MEMS陀螺仪传感器1a与采样计算模块1c电连接,所述采样计算模块1c与无线通讯模组1e电连接,所述采样计算模块1c与存储器1d电连接,所述无线通讯模组1e与上位机2通讯连接,所述无线通讯模组1e为蓝牙发射模块或WIFI发射模块。
所述采样计算模块1c用于对MEMS陀螺仪传感器1a采集的内外翻角度数据进行标定,并将标定后的内外翻角度数据通过无线通讯模组1e传输到上位机2。如图3所示,实际操作时,为了得到准确的角位移,在传输数据给上位机之前,胫骨陀螺仪传感器组件采集的数据要先经过标定,过程如图所示。
使用双面胶将胫骨传感器组件贴于胫骨结节处,通过蓝牙连接方式与上位机连接,检查者分别在膝关节0度位和屈膝30度位进行侧方应力试验检查,检查内翻应力试验时,如图4a所示,右手握住脚踝内侧处,施加外翻应力,左手抵于股骨下端外侧处,予以对抗,观察膝关节内侧间隙张开程度并感受内侧张力,同时进行对侧膝关节侧方应力试验检查,两者对比。如图4b所示,如膝关节内侧副韧带损伤,则可观察到膝关节内侧间隙增大明显,小腿外翻角度增大,同时可感受内侧张力减小,从而进行临床诊断分度。检查外翻应力试验时,则方向相反。
在进行膝关节侧方应力试验过程中,胫骨传感器组件可采集胫骨相对股骨内外翻角度数据并通过蓝牙模块传输到上位机,根据采集的数据,分析出胫骨在膝关节侧方应力试验中的内外翻角度。采用此测试装置,可量化胫骨内外翻角度来评估膝关节侧方应力试验的损伤程度分度。
在临床上采用该装置对16例内侧副韧带损伤患者进行膝关节侧方应力试验,其中记录患侧胫骨外翻角。为进一步明确诊断及分度,所有患者行双膝关节应力位X线片检查,摄片结束后上传图像,于计算机上采用医学影像分析系统,分别测量内外翻应力下双膝关节内外侧间隙距离,计算得到间隙差值,再按上述损伤程度分度方法进行评估,其中Ⅰ度6例,Ⅱ度4例,Ⅲ度6例。将16例患者按损伤程度分度依次列出膝关节内侧间隙差值和胫骨外翻角,结果见表1,可见Ⅰ度患者胫骨外翻角1-2°,Ⅱ度患者胫骨外翻角3-4°,Ⅲ度患者胫骨外翻角5-6°。
表1
虽然以上描述了本发明的具体实施方式,但是本领域的技术人员应当理解,这些仅是举例说明,本发明的保护范围是由所附权利要求书限定的。本领域的技术人员在不背离本发明的原理和实质的前提下,可以对这些实施方式做出多种变更或修改,但这些变更和修改均落入本发明的保护范围。
Claims (4)
1.一种膝关节侧副韧带损伤检测装置,其特征在于,其包括胫骨陀螺仪组件和上位机,所述胫骨陀螺仪组件贴于胫骨结节处,所述胫骨陀螺仪组件与上位机通讯连接;
所述胫骨陀螺仪组件用于检测胫骨相对股骨的内外翻角度数据并传输到上位机,所述上位机用于根据采集的内外翻角度数据,分析出胫骨在膝关节侧方应力试验中的内外翻角度。
2.如权利要求1所述的膝关节侧副韧带损伤检测装置,其特征在于,所述胫骨陀螺仪组件包括MEMS陀螺仪传感器、电源和管理模组、采样计算模块、存储器、无线通讯模组,所述电源和管理模组分别与MEMS陀螺仪传感器和采样计算模块电连接,所述MEMS陀螺仪传感器与采样计算模块电连接,所述采样计算模块与无线通讯模组电连接,所述采样计算模块与存储器电连接,所述无线通讯模组与上位机通讯连接。
3.如权利要求2所述的膝关节侧副韧带损伤检测装置,其特征在于,所述无线通讯模组为蓝牙发射模块或WIFI发射模块。
4.如权利要求2所述的膝关节侧副韧带损伤检测装置,其特征在于,所述采样计算模块用于对MEMS陀螺仪传感器采集的内外翻角度数据进行标定,并将标定后的内外翻角度数据通过无线通讯模组传输到上位机。
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CN109498043A (zh) * | 2018-12-29 | 2019-03-22 | 核工业总医院 | 关节韧带损伤辅助检查装置 |
CN110432872A (zh) * | 2019-09-18 | 2019-11-12 | 西安卡马蜥信息科技有限公司 | 膝关节韧带损伤评估设备和方法 |
Cited By (1)
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CN113171082A (zh) * | 2021-04-26 | 2021-07-27 | 中山大学孙逸仙纪念医院 | 一种前束交叉韧带损伤评估方法及装置 |
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