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Updated: Jan 23, 2026

Oscillation and Reaction Board Techniques for Estimating Inertial Properties of a Below-knee Prosthesis
Published on: May 8, 2014
Influence of instrumentation on the surgical time to implant a total knee prosthesis
V J León-Muñoz1, A J Lisón-Almagro2, M López-López3
1Servicio de Cirugía Ortopédica y Traumatología, Hospital Clínico Universitario Virgen de la Arrixaca, Murcia, España.
Objective:
To demonstrate if there is a difference in the time that the surgery is prolonged to implant a knee prosthesis according to the instrumentation system used.
Material And Methods:
Retrospective analysis of the duration of 243 interventions (skin-to-skin time and ischemia time) performed by the same surgeon. Seventy-two cases operated with conventional instruments (IC), 68 by means of computer assisted surgery (CAS) and 103 with personalized instrumentation system (PSI).
Results:
IC skin-to-skin time 87,85 min (SD 11,86). IC ischemia time 94,44 min (SD 11,49). Computer assisted surgery skin-to-skin time 123,46 min (SD 11,27). Computer assisted surgery ischemia time 129,63 min (SD 11,37). PSI skin-to-skin time 78,69 min (SD 13,06). PSI ischemia time 84,63 min (SD 12,06). There is a significant difference between PSI and the other instrumentation systems (p 0,000).
Conclusions:
In our study, the time consumption for the implantation of a knee prosthesis has been significantly lower when cutting blocks have been used, than when we have used other systems.
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