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Measured vs Navigated Techniques in Total Hip Arthroplasty

2022年5月25日 更新者:Ottawa Hospital Research Institute

Accuracy in aChieving Optimum reconstrUction: Measured- vs. Navigation- Techniques in Hip Arthroplasty

Accurate reconstruction of the native hip parameters following total hip arthroplasty is associated with improved outcome. In order to improve ability for optimum reconstruction, 3-D templating software can be utilized that provide detailed information regarding native anatomy. In order to achieve reconstruction within acceptable parameters as per pre-operative plan, some surgeons propose the use of intra-operative devices that measure component orientation and joint reconstruction ("Measured-THA"), whilst others propose the use of navigation tools ("Navigation-THA). Both techniques have shown superiority compared to the most commonly used "freehand" technique, but no prior study has assessed for superiority between these 2 techniques. Furthermore, to-date assessment of post-operative reconstruction has not been tested in detail as post-THA assessments are based on radiographs which provide incomplete, 2-dimensional, assessments and are lacking the important axial plane reconstruction parameters. The aims of this prospective, randomized, trial are to 1. appraise the ability to achieve the pre-operative 3-D plan (as per FormusLab) through a comparison of pre-op plan to post-operative reconstruction; 2. compare ability to accurately reconstruct hip following THA between "navigated-" (IntelliJoint®) and "measured-" techniques; and in doing so it will also 3. assess the accuracy of the intra-operative assessments of reconstruction through a comparison of objective (i.e. measured) intra-operative assessments with the post-operative reconstructions achieved.

研究概览

研究类型

介入性

注册 (预期的)

100

阶段

  • 不适用

联系人和位置

本节提供了进行研究的人员的详细联系信息,以及有关进行该研究的地点的信息。

学习联系方式

  • 姓名:Isabel Horton
  • 电话号码:73032 613-737-8899
  • 邮箱ihorton@ohri.ca

参与标准

研究人员寻找符合特定描述的人,称为资格标准。这些标准的一些例子是一个人的一般健康状况或先前的治疗。

资格标准

适合学习的年龄

  • 孩子
  • 成人
  • 年长者

接受健康志愿者

有资格学习的性别

全部

描述

Inclusion Criteria:

  • Patients who are signed for a THA for primary or secondary osteoarthritis without overt deformity that would require revision type implants and with good enough bone quality to be listed for uncemented component implantation.

Exclusion Criteria:

  • Secondary OA due to Dysplasia (Hartofilakidis >1)
  • Avascular necrosis of the hip with destruction of joint structure
  • Sequelae of Pediatric deformity with abnormal anatomy
  • Cemented fixation of femur or acetabulum
  • Previous arthroplasty-type procedure
  • Previous septic arthritis of the hip

学习计划

本节提供研究计划的详细信息,包括研究的设计方式和研究的衡量标准。

研究是如何设计的?

设计细节

  • 主要用途:治疗
  • 分配:随机化
  • 介入模型:并行分配
  • 屏蔽:单身的

武器和干预

参与者组/臂
干预/治疗
实验性的:Measured Technique
Patients in this group will have pre-operative planning done using the measured technique.
Manual intra-operative checks and tools are used to aid in component placement during surgery.
实验性的:Navigated Technique
Patients in this group will have pre-operative planning done using the navigated technique.
IntelliJoint® navigation is an imageless-based navigation system that utilizes a miniature infrared camera and microelectronics to measure hip center of rotation, acetabular inclination and version, leg length, and offset. The device provides accurate real-time data on implant positioning to aid in placement of the components during surgery.

研究衡量的是什么?

主要结果指标

结果测量
措施说明
大体时间
Change in Pain Assessment - Oxford Hip Score
大体时间:once pre-operatively and once one-year post-operatively
The Oxford Hip Score will be given to patients to assess subjective measures of hip pain. Scores for each question from 0 to 4 with 4 being the best outcome. This method, when summed, produces overall scores running from 0 to 48 with 48 being the best outcome
once pre-operatively and once one-year post-operatively
Change in mobility, self-care, usual activities, pain/discomfort and anxiety/depression- EuroQol
大体时间:once pre-operatively and once one-year post-operatively

the EuroQol (EQ-5D-5L) will be given to patients to assess subjective measures mobility, self-care, usual activities, pain/discomfort and anxiety/depression.

Each dimension in the EQ-5D-5L has five response levels: no problems (Level 1); slight; moderate; severe; and extreme problems (Level 5). The maximum score of 1 indicates the best health state, by contrast with the scores of individual questions, where higher scores indicate more severe or frequent problems.

once pre-operatively and once one-year post-operatively
Change in physical, mental, and social health- PROMIS Global-10
大体时间:once pre-operatively and once one-year post-operatively
the PROMIS Global-10 will be given to patients to assess subjective measures of physical, mental and social health. It is a 10-item patient-reported questionnaire in which the response options are presented as 5-point (as well as a single 11-point) rating scales. The results of the questions are used to calculate two summary scores: a Global Physical Health Score and a Global Mental Health score. Higher scores indicate worse physical and mental health
once pre-operatively and once one-year post-operatively
Adverse Events
大体时间:90 days post-operatively

Serious adverse events will be monitored. This includes:

  • Wound complication
  • Dislocation
  • Fracture
  • Infection
  • Re-operation
  • Revision surgery
90 days post-operatively

次要结果测量

结果测量
措施说明
大体时间
Accuracy of reconstruction (in mm)
大体时间:post-operatively (within one week post-operatively)

A measure (in mm) of how close the planned to actual reconstruction using the aforementioned reconstruction parameters. This will be assessed using:

  • Acetabular component orientation
  • Accuracy of acetabular component orientation

    o Accuracy of femoral version restoration

  • Combined version of arthroplasty in degrees

    • Accuracy of combined version restoration
  • Femoral Offset in mm

    o Accuracy of achieving femoral offset

  • Acetabular offset in mm

    o Accuracy of achieving acetabular offset

  • Total offset in mm

    o Accuracy of achieving total offset

  • Leg Length in mm o Accuracy of achieving leg length
post-operatively (within one week post-operatively)
Comparison of margin of error
大体时间:Through study completion, an average of 1 year
This outcome will measure what the margin of error is between intra-operatively measured values and those determined from the post-operative CT scan. This will be done using statistical analysis of data for patients in both study arms.
Through study completion, an average of 1 year
Accuracy of reconstruction on outcome
大体时间:Through study completion, an average of 1 year
This outcome measure will assess the accuracy of reconstruction correlate with outcome (adverse events and PROMs). This will be done by analyzing accuracy as depicted by the variables in outcome measure 5, and how these measures of accuracy correlate to patient reported outcome measure scores and rates of adverse events
Through study completion, an average of 1 year
Accuracy of reconstruction (in degrees)
大体时间:post-operatively (within one week post-operatively)

A measure (in degrees) of how close the planned to actual reconstruction using the aforementioned reconstruction parameters. This will be assessed using:

Acetabular component orientation (Radiographic inclination/anteversion in degrees as per Murray)

  • Accuracy of acetabular component orientation (i.e. deviation from target - aim for deviation of < ±5˚)

    ● Femoral Component Version in degrees

  • Accuracy of femoral version restoration (aim for version difference to be less than ±5˚ from pre-operative plan)

    ● Combined version of arthroplasty in degrees

  • Accuracy of combined version restoration (sum of acetabular and femoral version; aim for combined version to be less than ±10˚ from pre-operative plan)
post-operatively (within one week post-operatively)

合作者和调查者

在这里您可以找到参与这项研究的人员和组织。

合作者

调查人员

  • 首席研究员:George Grammatopoulos, MD、The Ottawa Hospital

出版物和有用的链接

负责输入研究信息的人员自愿提供这些出版物。这些可能与研究有关。

一般刊物

研究记录日期

这些日期跟踪向 ClinicalTrials.gov 提交研究记录和摘要结果的进度。研究记录和报告的结果由国家医学图书馆 (NLM) 审查,以确保它们在发布到公共网站之前符合特定的质量控制标准。

研究主要日期

学习开始 (预期的)

2022年7月1日

初级完成 (预期的)

2024年7月1日

研究完成 (预期的)

2024年9月1日

研究注册日期

首次提交

2021年12月10日

首先提交符合 QC 标准的

2022年5月25日

首次发布 (实际的)

2022年5月26日

研究记录更新

最后更新发布 (实际的)

2022年5月26日

上次提交的符合 QC 标准的更新

2022年5月25日

最后验证

2022年5月1日

更多信息

与本研究相关的术语

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研究美国 FDA 监管的设备产品

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Measured Technique的临床试验

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