Assessing the Accuracy of Bone Resection by Cutting Blocks in Patient-Specific Total Knee Replacements
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چکیده
منابع مشابه
Assessing the Accuracy of Bone Resection by Cutting Blocks in Patient-Specific Total Knee Replacements
Introduction. The key to a successful total knee arthroplasty (TKA) is the restoration of the mechanical axis with balanced flexion and extension gaps. Patient-specific cutting block technique has been the latest development in total knee arthroplasty. This technique uses a magnetic resonance image (MRI) of the patient's symptomatic knee to create bone models and cutting jigs. This study was de...
متن کاملAccuracy of Patient Specific Cutting Blocks in Total Knee Arthroplasty
BACKGROUND Long-term survival of total knee arthroplasty (TKA) is mainly determined by optimal positioning of the components and prosthesis alignment. Implant positioning can be optimized by computer assisted surgery (CAS). Patient specific cutting blocks (PSCB) seem to have the potential to improve component alignment compared to the conventional technique and to be comparable to CAS. METHOD...
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In conventional total knee replacement (TKR) surgery, a significant fraction of implants have varus/valgus alignment errors large enough to reduce the lifespan of the implant, so we are developing a more accurate computer-assisted procedure aimed at reducing the standard deviation (SD) of the implant’s frontal alignment to under 1? . In this study we measured the contributions to overall alignm...
متن کاملThe Accuracy of Initial Bone Cutting in Total Knee Arthroplasty
Background: The aim of this study was to evaluate the accuracy of initial bone cutting of the distal femur and the proximal tibia in TKA using an image-free navigation system. Methods: From February 2006 to March 2013, we evaluated 60 knees in 50 patients using an image-free navigation system (Navigation: Stryker Navigation Cart System; Software: Stryker Knee Navigation; Ver2.0: Stryker Orthopa...
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Background: The aim of this study is to evaluate the accuracy of bone cuts and the resultant alignment, using theMyKnee patient specific cutting blocks.Methods: We retrospectively reviewed 132 patients undergoing primary TKR for osteoarthritis by one single surgeon.The operative time, the preoperative Hip-Knee-Ankle (HKA) axis based on the CT-scan, the postoperative HKA axisbased on long axis s...
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ژورنال
عنوان ژورنال: ISRN Orthopedics
سال: 2012
ISSN: 2090-617X
DOI: 10.5402/2012/509750