Component position alignment with patient‐specific jigs in total knee arthroplasty

@article{Moopanar2014ComponentPA,
  title={Component position alignment with patient‐specific jigs in total knee arthroplasty},
  author={Terence R Moopanar and Jeevaka E Amaranath and Rami Maher Sorial},
  journal={ANZ Journal of Surgery},
  year={2014},
  volume={84}
}
The failure to restore mechanical alignment and appropriate rotational axis intraoperatively has been described as one of the most common causes of implant failure in total knee arthroplasty (TKA). Both conventional and computer‐assisted TKA have their limitations. Patient‐specific jigs (PSJ) offer a possible alternative method for TKA. The aim of this study was to investigate if the use of PSJ offers reproducible and accurate orientation of the components in TKA compared with conventional and… 
View on Wiley
apasonline.org
8 Citations
Background Citations
1

8 Citations

Citation Type

Citation Type

Three-dimensional analysis of accuracy of component positioning in total knee arthroplasty with patient specific and conventional instruments: A randomized controlled trial.
Higher Component Malposition Rates with Patient-Specific Cruciate Retaining TKA than Contemporary Posterior Stabilized TKA.
TLDR
It is suggested that careful attention to surgical technique is important for optimizing implant survivorship with the CR CIM-TKA design, and additional study is needed to determine whether higher revision rates identified during this study are related to patient selection, surgical technique, or implant design.
Patient-Specific Instrumentation Accuracy Evaluated with 3D Virtual Models
TLDR
The evaluated PSI system’s three-dimensional alignment analysis showed a statistically significant difference between the angular values planned and those obtained, however, it did not find a relevant effect size, and this slight discrepancy did not impact the clinical outcome.
Computer Assisted Hip Resurfacing Using Patient-Specific Instrument Guides
TLDR
This chapter discusses the use of patient-specific instrument guides as an accurate and reliable image-guided method for the placement of the femoral and acetabulum components during hip resurfacing.
Different targets of mechanical alignment do not improve knee outcomes after TKA.
Patient-specific instrumentation for total knee arthroplasty
TLDR
It is found that TKR using this patient-specific instrumentation accurately reproduces preoperative planning in all six of the parameters measured in this study.
The influence of osteophyte depiction in CT for patient-specific guided hip resurfacing procedures
TLDR
The depiction of osteophytes in clinical preoperative CT scans for proximal femurs can be unreliable and can possibly result in significant intraoperative instrument alignment errors during image-guided surgeries.
3D-printing techniques in a medical setting: a systematic literature review
TLDR
The research suggests that there are several advantages to 3D-printed applications, but that further research is needed to determine whether the increased intervention costs can be balanced with the observable advantages of this new technology.

References

SHOWING 1-10 OF 26 REFERENCES
Patient-Specific Instrumentation for Total Knee Replacement Verified by Computer Navigation: A Case Report
TLDR
Patient-specific instrumentation enables better restoration of the mechanical axis in total knee replacement (TKR) than conventional instrumentation (alignment guides) does and may result in malalignment of the bone cuts.
Femoral component rotation during total knee arthroplasty
TLDR
One-hundred consecutive posterior cruciate retaining total knee arthroplasties were performed by one surgeon in 81 patients with an average age of 69 years and the transepicondylar axis most consistently recreated a balanced flexion space.
The Ranawat Award. Femoral component rotation during total knee arthroplasty.
TLDR
One-hundred consecutive posterior cruciate retaining total knee arthroplasties were performed by one surgeon in 81 patients with an average age of 69 years and the transepicondylar axis most consistently recreated a balanced flexion space.
Positioning of total knee arthroplasty with and without navigation support. A prospective, randomised study.
TLDR
The use of a navigation system was shown to improve the alignment of the implant and revealed a highly significant difference between the two groups in favour of navigation with regard to the mechanical axis, the frontal and sagittal femoral axis and the frontal tibial axis.
Systematic review of computer‐navigated total knee arthroplasty
TLDR
A systematic review was undertaken to assess the safety and effectiveness of CNTKA compared with conventional TKA.
The importance of tibial alignment: finite element analysis of tibial malalignment.
TLDR
The influence of the tibial plateau orientation on cancellous bone stress was examined by finite element analysis for a cemented device and it was suggested that overall alignment in valgus results in lower migration rates and lower incidence of loosening.
Custom-fit total knee arthroplasty: our initial experience in 32 knees.
Rotational alignment of the distal femur: a literature review.
  • J. Victor
  • Medicine
    Orthopaedics & traumatology, surgery & research : OTSR
  • 2009
Tibial Component Failure Mechanisms in Total Knee Arthroplasty
TLDR
The dominant failure mechanisms for this component design are related to preoperative deformity, technical factors of component alignment, overall limb alignment, and ligamentous imbalance.
Does accurate anatomical alignment result in better function and quality of life? Comparing conventional and computer-assisted total knee arthroplasty.
...
1
2
3
...