3D templating and patient-specific instrumentation in primary total knee arthroplasty with retained internal fixation hardware: Two case reports

Takahashi, Tsuneari; Kubo, Tatsuya; Kimura, Yuya; Yamaguchi, Naoki; Takeshita, Katsushi

doi:10.1016/j.tcr.2022.100716

Cited by 1 publication

(1 citation statement)

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“…The preoperative planning of Prophecy Evolution medial pivot patient-specific instrumented knee replacement systems (MicroPort Orthopedics, Inc., Arlington, TN, USA) 4 revealed that at least eight proximal locking screws inserted into medial and lateral LCP required removal during tibial bone resection using a cutting guide following the application of the proximal lateral tibial fitting PSI for the lateral approach ( Figure 2 ). Therefore, PSI-assisted MA-PS TKA, followed by partial screws and LCP removal 5 was planned.…”

Section: Case Presentationmentioning

confidence: 99%

Use of a preoperative 3D templating and proximal lateral tibial fitting patient-specific instrumentation in fixed valgus complex primary total knee arthroplasty for a patient with retaining hardware for internal fixation to treat Schatzker type V tibial plateau fracture: A case report

Mizunuma,

Takahashi,

Iguchi

et al. 2023

SAGE Open Medical Case Reports

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A 72-year-old female patient with a fixed valgus knee deformity due to a Schatzker type V tibial plateau fracture treated with bilateral locking plates 8 years ago was admitted to our clinic with complaints of chronic pain and knee instability when walking. Radiographs revealed Kellgren–Lawrence Classification grade 4 knee osteoarthritis and 20.5° of valgus knee deformity. She was treated with three-dimensional templating and proximal lateral tibial fitting patient-specific instrumentation-assisted mechanically aligned posterior sacrificing total knee arthroplasty with minimal removal of the retained hardware for the internal fixation of the tibial plateau fracture via a lateral approach, resulting in a favorable clinical outcome. The use of proximal lateral tibial fitting patient-specific instrumentation in fixed valgus complex primary total knee arthroplasty for patients with retaining hardware for internal fixation to treat tibial plateau fractures is considered a treatment option to decrease surgical invasion.

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Section: Case Presentationmentioning

confidence: 99%