Three Dimensional CT-based Virtual Patellar Resection in Female Patients Undergoing Total Knee Replacement: A Comparison between Tendon and Subchondral Method
Clinics in Orthopedic Surgery
; : 193-199, 2012.
Article
Dans En
| WPRIM
| ID: wpr-210190
Responsable en Bibliothèque :
WPRO
ABSTRACT
BACKGROUND:
Due to its small size, variable shape, and lack of distinct anatomical landmarks, osteoarthritic knees make a precise patellar resection extremely difficult.METHODS:
We performed virtual patellar resection with digital software using three dimensional computed tomography scans of knees from 49 patients who underwent primary total knee replacement at our hospital. We compared 2 commonly used resection methods, the tendon method (TM) and the subchondral method, to determine an ideal resection plane with respect to the symmetry and thickness of the patellar remnant.RESULTS:
The TM gave a thicker resected patella, and a less oval cut surface shape, which gives better coverage for a domed prosthesis. Both methods, however, gave a symmetric resection both superior-inferiorly, as well as mediolaterally.CONCLUSIONS:
Although TM appears statistically better with respect to the thickness and cut surface shape, only further intraoperative studies with long-term clinical follow-up may provide us with the most appropriate patellar resection method.
Texte intégral:
1
Indice:
WPRIM
Sujet Principal:
Patella
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Tomodensitométrie
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Arthroplastie prothétique de genou
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Imagerie tridimensionnelle
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Chirurgie assistée par ordinateur
Limites du sujet:
Aged
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Aged80
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Female
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Humans
langue:
En
Texte intégral:
Clinics in Orthopedic Surgery
Année:
2012
Type:
Article