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Potential risk of medial cortex perforation due to peg position of morphometric tibial component in unicompartmental knee arthroplasty: a computer simulation study
- Source :
- Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA. 30(2)
- Publication Year :
- 2020
-
Abstract
- The purpose of this study is to evaluate the risk of medial tibial cortical perforation in unicompartmental knee arthroplasty (UKA) due to peg positions on the tibial tray of the Persona Partial Knee (PPK). Preoperative CT images of 60 patients and 60 osteoarthritic knees (30 male and 30 female patients) were used. A tibial multiplanar reconstruction (MPR) image was reconstructed in preoperative planning software, and the implant was placed in a virtual osteotomy plane. In addition to PPK, Zimmer Unicompartmental Knee (ZUK) and TRIBRID (TBD) were used for evaluation. The horizontal distances from the medial tibial cortex to the anterior and posterior pegs (APCD/PPCD, respectively) were measured under neutral, 3-degree varus, 3-degree valgus and 2 mm distal positions. The differences between implants under the same positions and between positions using the same implants were compared. The percentage of total cases with APCD/PPCD of less than 3 mm and the perforation risk rate were calculated. The APCD of PPK was significantly shorter at all positions except for the varus position of TBD. The PPCD of PPK was significantly shorter at all positions compared to ZUK and TBD. There were no cases with an APCD of less than 3 mm. Except for varus positions, the perforation risk rate of PPCD was significantly higher for PPK than the other two implants. The posterior pegs of the PPK are located more medially than the other two implants, which may result in perforation of the medial tibial cortex during implantation. Surgeons should consider the risk involved in the type of implant used.
- Subjects :
- musculoskeletal diseases
Male
medicine.medical_specialty
Knee Joint
Medial cortex
medicine.medical_treatment
Perforation (oil well)
Osteotomy
03 medical and health sciences
0302 clinical medicine
Medicine
Humans
Orthopedics and Sports Medicine
Computer Simulation
Unicompartmental knee arthroplasty
Arthroplasty, Replacement, Knee
Retrospective Studies
Orthodontics
030222 orthopedics
biology
Tibia
business.industry
Tibial tray
030229 sport sciences
Osteoarthritis, Knee
musculoskeletal system
biology.organism_classification
Valgus
Orthopedic surgery
Surgery
Female
Implant
business
Knee Prosthesis
Subjects
Details
- ISSN :
- 14337347
- Volume :
- 30
- Issue :
- 2
- Database :
- OpenAIRE
- Journal :
- Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA
- Accession number :
- edsair.doi.dedup.....cec1e048823bf890f9cbeea37b08d2ae