Abstract
Tibial plateau fractures (TPFs) are common injuries that pose a significant risk of
posttraumatic osteoarthritis (PTOA) despite surgical fixation. Though total knee arthroplasty
(TKA) has been proven as a viable treatment option for PTOA, there is a higher risk
of postoperative complications in patients with prior TPF. This systematic review
aimed to evaluate surgical considerations and outcomes of TKA in patients with prior
TPF fixation. A search of PubMed MEDLINE, Embase, and Scopus databases from January
2008 to July 2023 was performed according to PRISMA guidelines using the following
inclusion criteria: TPF, PTOA, TKA, and conversion TKA. Exclusion criteria included
periprosthetic fractures, distal femoral fractures, and patients under 18 years. Two
independent reviewers screened each study. For postoperative infection and revision
rates, the results were pooled, and random-effects meta-analysis of single proportions
was conducted to determine the combined rate of infections and revisions. Nine studies
involving a total of 572 patients who underwent TKA following TPF fixation were included.
The average patient age ranged from 44.0 to 65.7 years, with mean TPF-to-TKA intervals
from 1.7 to 13.6 years. TPF fixation details, implant types, and complication rates,
including infection (range 3.2–36.8%) and revision (range 0–20%), were reported in
most studies. The meta-analysis pooled estimates for postoperative infection and revision
rates were 11% (95% CI 0.06–0.16) at an average of 7.0 years follow-up and 9% (95%
CI 0.04–0.15) at an average of 7.4 years follow-up. TKA in patients with previous
TPF fixation can be complex and may require augmentation and increased implant constraint.
Though the literature reports good functional outcomes in this TKA population, TKA
after TPF fixation carries an increased risk of both infection and aseptic revision
compared with patients undergoing TKA for osteoarthritis. Further high-quality prospective
studies are needed to elucidate risk factors and optimize management strategies for
patients undergoing TKA following TPF fixation.
Keywords
total knee arthroplasty - tibial plateau fracture - conversion total knee arthroplasty
- posttraumatic osteoarthritis