J Cip1, M Widemschek1, C Bach1, P Ruckenstuhl2, T Benesch3, K Studer4, A Martin5. 1. Department of Orthopedic Surgery, Academic Teaching Hospital Feldkirch, Medical University of Graz, Carinagasse 47, A-6800 Feldkirch, Austria. 2. Department of Orthopedics and Trauma, Medical University of Graz, Auenbruggerplatz 5, A-8036 Graz, Austria. 3. University of Vienna, Austria. 4. Department of Pediatric Orthopedic Surgery, Children's Hospital St. Gallen, Claudiusstrasse 6, CH-9006 St. Gallen, Switzerland. 5. Department of Traumatology, Academic Teaching Hospital Bregenz, Carl-Pedenz-Straße 2, A-6900 Bregenz, Austria.
Abstract
OBJECTIVE: Navigated computer-assisted total knee arthroplasty (TKA) shows inconclusive mid- to long-term outcome results and is limited by increased costs, surgery-time and an additional learning curve. We introduced a treatment algorithm preserving computer-assisted TKA for patients with adipositas-per-magna, posttraumatic leg-deformities, osteosynthetic material in-situ or reduced preoperative X-ray quality. METHODS: 237 primary unilateral TKA were allocated based on the treatment concept described above. A retrospective pre- and postoperative radiological analysis was performed. RESULTS: 222 TKA (93.7%) were within 3° varus/valgus of mechanical-lower-limb axis (mean absolute deviation: 1.8° ± 1.3°). CONCLUSION: This algorithm showed an excellent postoperative implantation-accuracy based on an accurate preoperative surgery-planning.
OBJECTIVE: Navigated computer-assisted total knee arthroplasty (TKA) shows inconclusive mid- to long-term outcome results and is limited by increased costs, surgery-time and an additional learning curve. We introduced a treatment algorithm preserving computer-assisted TKA for patients with adipositas-per-magna, posttraumatic leg-deformities, osteosynthetic material in-situ or reduced preoperative X-ray quality. METHODS: 237 primary unilateral TKA were allocated based on the treatment concept described above. A retrospective pre- and postoperative radiological analysis was performed. RESULTS: 222 TKA (93.7%) were within 3° varus/valgus of mechanical-lower-limb axis (mean absolute deviation: 1.8° ± 1.3°). CONCLUSION: This algorithm showed an excellent postoperative implantation-accuracy based on an accurate preoperative surgery-planning.
Authors: Alfonso Manzotti; Pietro Cerveri; Elena De Momi; Chris Pullen; Norberto Confalonieri Journal: Int Orthop Date: 2009-06-10 Impact factor: 3.075
Authors: Johannes Cip; Mark Widemschek; Matthias Luegmair; Mitchell B Sheinkop; Thomas Benesch; Arno Martin Journal: J Arthroplasty Date: 2014-05-04 Impact factor: 4.757