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Tibial tubercle osteotomy in revision total knee arthroplasty: A systematic review

Authors
  • Chalidis, Byron
  • Kitridis, Dimitrios
  • Givissis, Panagiotis
Type
Published Article
Journal
World Journal of Orthopedics
Publisher
Baishideng Publishing Group Co (World Journal of Orthopedics)
Publication Date
Jun 18, 2020
Volume
11
Issue
6
Pages
294–303
Identifiers
DOI: 10.5312/wjo.v11.i6.294
PMID: 32572366
PMCID: PMC7298452
Source
PubMed Central
Keywords
License
Unknown

Abstract

BACKGROUND Tibial tubercle osteotomy (TTO) is a well-established surgical technique to deal with a stiff knee in revision total knee arthroplasty (RTKA). However, several reports have described potential osteotomy-related complications such as non-union, tibial tubercle migration and fragmentation, and metalware related pain. AIM To evaluate the literature and estimate the efficiency of TTO in RTKA in terms of osteotomy union, knee mobility and complications. METHODS MEDLINE, Scopus, and the Cochrane Central Register of Controlled Trials were investigated for completed studies until February 2020. The principle outcome of the study was the incidence of union of the osteotomy. Secondary outcomes were the knee range of motion as well as the TTO-related and overall procedure complication rate. RESULTS Fifteen clinical studies with a total of 593 TTOs were included. The TTO union rate was 98.1%. Proximal migration and anterior knee pain were the most common TTO-related complications accounting for 6.9% and 6.4% of all cases, respectively. However, only 2.2% of cases suffering from anterior knee pain needed hardware removal. Knee flexion was improved from 82.9° preoperatively to 100.1° postoperatively and total knee range of motion was increased from 73.4° before surgery to 97° after surgery. Stiffness requiring manipulation under anesthesia was recorded in 4.6% of cases. No major complications were reported. CONCLUSION The current systematic review supports the use of TTO in RTKA, as it is associated with high union rate, significant improvement in knee motion and low osteotomy-related complication risk that rarely leads to secondary tibial tubercle procedures.

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