Patient-specific instrumentation improved mechanical alignment, while early clinical outcome was comparable to conventional instrumentation in TKA
| Autor: | B. Laky, G. Brandl, Philipp R. Heuberer, E. Schwameis, Werner Anderl, Bernhard Kriegleder, Gabriele Kiesselbach, Leo Pauzenberger, Roman Kölblinger |
|---|---|
| Rok vydání: | 2014 |
| Předmět: |
musculoskeletal diseases
Male medicine.medical_specialty WOMAC Knee Joint Radiography Total knee arthroplasty Osteoarthritis medicine Humans Orthopedics and Sports Medicine Prospective Studies Prospective cohort study Arthroplasty Replacement Knee Aged business.industry Bone Malalignment Middle Aged Osteoarthritis Knee medicine.disease Surgery Treatment Outcome Patient specific instrumentation Surgery Computer-Assisted Orthopedic surgery Female Level ii business Knee Prosthesis Tomography X-Ray Computed |
| Zdroj: | Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA. 24(1) |
| ISSN: | 1433-7347 |
| Popis: | The aim of this prospective study was to compare early clinical outcome, radiological limb alignment, and three-dimensional (3D)-component positioning between conventional and computed tomography (CT)-based patient-specific instrumentation (PSI) in primary mobile-bearing total knee arthroplasty (TKA). Two hundred ninety consecutive patients (300 knees) with severe, debilitating osteoarthritis scheduled for TKA were included in this study using either conventional instrumentation (CVI, n = 150) or PSI (n = 150). Patients were clinically assessed before and 2 years after surgery according to the Knee-Society-Score (KSS) and the visual-analog-scale for pain (VAS). Additionally, the Western Ontario McMaster Universities Osteoarthritis Index (WOMAC) and the Oxford-Knee-Score (OKS) were collected at follow-up. To evaluate accuracy of CVI and PSI, hip-knee-ankle angle (HKA) and 3D-component positioning were assessed on postoperative radiographs and CT. Data of 222 knees (CVI: n = 108, PSI: n = 114) were available for analysis after a mean follow-up of 28.6 ± 5.2 months. At the early follow-up, clinical outcome (KSS, VAS, WOMAC, OKS) was comparable between the two groups. Mean HKA-deviation from the targeted neutral mechanical axis (CVI: 2.2° ± 1.7°; PSI: 1.5° ± 1.4°; p |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full text from SpringerLink