Patient-specific instrumentation in total knee arthroplasty provides no improvement in component alignment

Update item information
Publication Type pre-print
School or College College of Health
Department Parks Recreation & Tourism
Creator Erickson, J. Alan
Other Author Stronach, Benjamin M.; Pelt, Christopher E.; Peters, Christopher L.
Title Patient-specific instrumentation in total knee arthroplasty provides no improvement in component alignment
Date 2014-01-01
Description Improved component alignment in TKA remains a commonly cited benefit of MRI based patient-specific instrumentation (PSI). We hypothesized that PSI would lead to improved alignment versus traditional instrumentation (TI) during primary TKA. Fifty-eight knees (54 patients) that underwent TKA with PSI were compared to 62 knees that had previously undergone TKA with TI. Radiographs were evaluated for mechanical axis and alignment of the femoral and tibial components. Alignment was similar between the groups. However, the PSI group showed fewer knees in the target range for posterior tibial slope (PSI 38% vs. TI 61%, p=0.01) in addition to a trend for fewer knees in target for femoral flexion (PSI 40% vs. TI 56%, p=0.07). This study demonstrated no improvement in overall alignment and perhaps a worsening of the tibial slope.
Type Text
Publisher Elsevier
First Page 1
Last Page 13
Language eng
Bibliographic Citation Stronach, B. M., Pelt, C. E., Erickson, J. A., & Peters, C. L. (2014). Patient-specific instrumentation in total knee arthroplasty provides no improvement in component alignment. Journal of Arthroplasty, 1-13.
Rights Management (c) Elsevier ; Authors manuscript from Stronach, B. M., Pelt, C. E., Erickson, J. A., & Peters, C. L. (2014). Patient-specific instrumentation in total knee arthroplasty provides no improvement in component alignment. Journal of Arthroplasty. http://dx.doi.org/10.1016/j.arth.2014.04.025
Format Medium application/pdf
Format Extent 713,306 bytes
Identifier uspace,18721
ARK ark:/87278/s6w98kb7
Setname ir_uspace
Date Created 2014-07-09
Date Modified 2014-07-09
ID 712595
Reference URL https://collections.lib.utah.edu/ark:/87278/s6w98kb7