Abstract
Roentgen stereophotogrammetric analysis (RSA) was used to investigate the stability of the tibial component in unicompartmental knee arthroplasty. Twenty patients were implanted with a Howmedica Duracon UNI prosthesis (Limerick, Ireland) and studied for an average follow-up of 30 months. In most cases, the displacements detected at 1-year follow-up were small (ie, not exceeding 0.5 mm for translations and not exceeding 1.0° for rotations). Only 1 patient showed signs of mechanical loosening as the prosthesis continued to migrate, reaching 3.2 mm of total motion at 4-year follow-up. RSA did not show any deformation in the polyethylene except for the case of loosening. The clinical results were excellent and good according to the Hospital for Special Surgery scoring system. No correlation was found among demographic, clinical, and RSA data.
| Original language | English |
|---|---|
| Pages (from-to) | 556-561 |
| Number of pages | 6 |
| Journal | Journal of Arthroplasty |
| Volume | 17 |
| Issue number | 5 |
| DOIs | |
| Publication status | Published - 2002 |
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Keywords
- Deformation
- Loosening
- Micromotion
- Roentgen stereophotogrammetric analysis (RSA)
- Unicompartmental knee arthroplasty
ASJC Scopus subject areas
- Orthopedics and Sports Medicine
- Surgery
Cite this
A roentgen stereophotogrammetric analysis of unicompartmental knee arthroplasty. / Soavi, Raffaella; Loreti, Ivano; Bragonzoni, Laura; La Palombara, Pier Francesco; Visani, Andrea; Marcacci, Maurilio.
In: Journal of Arthroplasty, Vol. 17, No. 5, 2002, p. 556-561.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - A roentgen stereophotogrammetric analysis of unicompartmental knee arthroplasty
AU - Soavi, Raffaella
AU - Loreti, Ivano
AU - Bragonzoni, Laura
AU - La Palombara, Pier Francesco
AU - Visani, Andrea
AU - Marcacci, Maurilio
PY - 2002
Y1 - 2002
N2 - Roentgen stereophotogrammetric analysis (RSA) was used to investigate the stability of the tibial component in unicompartmental knee arthroplasty. Twenty patients were implanted with a Howmedica Duracon UNI prosthesis (Limerick, Ireland) and studied for an average follow-up of 30 months. In most cases, the displacements detected at 1-year follow-up were small (ie, not exceeding 0.5 mm for translations and not exceeding 1.0° for rotations). Only 1 patient showed signs of mechanical loosening as the prosthesis continued to migrate, reaching 3.2 mm of total motion at 4-year follow-up. RSA did not show any deformation in the polyethylene except for the case of loosening. The clinical results were excellent and good according to the Hospital for Special Surgery scoring system. No correlation was found among demographic, clinical, and RSA data.
AB - Roentgen stereophotogrammetric analysis (RSA) was used to investigate the stability of the tibial component in unicompartmental knee arthroplasty. Twenty patients were implanted with a Howmedica Duracon UNI prosthesis (Limerick, Ireland) and studied for an average follow-up of 30 months. In most cases, the displacements detected at 1-year follow-up were small (ie, not exceeding 0.5 mm for translations and not exceeding 1.0° for rotations). Only 1 patient showed signs of mechanical loosening as the prosthesis continued to migrate, reaching 3.2 mm of total motion at 4-year follow-up. RSA did not show any deformation in the polyethylene except for the case of loosening. The clinical results were excellent and good according to the Hospital for Special Surgery scoring system. No correlation was found among demographic, clinical, and RSA data.
KW - Deformation
KW - Loosening
KW - Micromotion
KW - Roentgen stereophotogrammetric analysis (RSA)
KW - Unicompartmental knee arthroplasty
UR - http://www.scopus.com/inward/record.url?scp=0036023502&partnerID=8YFLogxK
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U2 - 10.1054/arth.2002.32139
DO - 10.1054/arth.2002.32139
M3 - Article
VL - 17
SP - 556
EP - 561
JO - Journal of Arthroplasty
JF - Journal of Arthroplasty
SN - 0883-5403
IS - 5
ER -