Digital Navigation Template For Total Hip Replacement Centerof Rotation Positioning Test Research And Clinical Application

ObjectiveDiscusses a new hip rotation center positioning method and digital navigation template center of rotation positioning of the feasibility, through and unarmed, digital navigation template two positioning method is proved the accuracy of the digital navigation template, evaluation of navigation template in total hip replacement application value.Method1. Randomly selected cases of hip bone specimens, the use of preoperative measurement data, with Solidwork software, the hip rotation center positioning navigation template design,304stainless steel material is made by metal machining technology naviation tempate.2. To40cases of hip joint specimens were randomly divided into two groups, one group of digital navigation templates positioning the femoral tunnel, the other group A clinical experience of doctors freehand positioning, two sets of specimens were using the same targeting criteria, comparing results of operations, assessment of digitized the navigation templates positioning of total hip replacement surgery center of rotation of the feasibility and accuracy of the positioning.3. Select patients with clinical hip osteoarthritis, the design of digital navigation templates in total hip arthroplasty center of rotation positioning accuracy measure the positioning of the center of rotation after follow-up of the hip joint function, using the Harris hip score to evaluate the clinical effect.Result1.Digital navigation templates positioning the hip rotation center of the preoperative measurement positioning the hip bone specimens hip rotation center in good agreement. 2.The navigation template group positioning of the center of rotation of total hip arthroplasty was significantly higher than the unarmed group.3.Digital navigation templates accurate positioning postoperative hip function recovered well.Conclusion1.Digital navigation templates technologies can total hip replacement surgery center of rotation of the positioning to provide a new method.2. Digital navigation templates technologies on total hip replacement surgery center of rotation of the positioning is more accurate and reliable, with strong practicality.3.Digital navigation templates technology avoids the subjectivity of mere the doctor naked eye and clinical experience to locate, simple, practical, and shorten the time of surgery and learning, suitable for primary physicians to quickly learn and master.