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- Title
Mismatched knee implants in Indonesian and Dutch patients: a need for increasing the size.
- Authors
Budhiparama, Nicolaas C.; Lumban-Gaol, Imelda; Ifran, Nadia Nastassia; de Groot, Pieter C. J.; Utomo, Dwikora Novembri; Nelissen, Rob G. H. H.
- Abstract
<bold>Purpose: </bold>The aim of this study was to evaluate the anthropometric differences between knees of Indonesian Asians and Dutch Caucasians and the fit of nine different knee implant systems.<bold>Methods: </bold>A total of 268 anteroposterior (AP) and lateral knee preoperative radiographs from 134 consecutive patients scheduled for total knee arthroplasty at two different centres in Jakarta and Leiden were included. Both patient groups were matched according to age and sex and included 67 Asians and 67 Caucasians. We assessed the radiographic differences between the Asian and Caucasian anthropometric data. The dimensions of the nine knee implant designs (Vanguard, Genesis II, Persona Standard, Persona Narrow, GK Sphere, Gemini, Attune Standard, Attune Narrow, and Sigma PFC) were compared with the patients' anthropometric (distal femur and proximal tibia) measurements.<bold>Results: </bold>The Dutch Caucasian patients had larger mediolateral (ML) and AP femoral and tibial dimensions than the Indonesian Asians. The aspect ratios of the distal femur and tibia were larger in Asians than in Caucasians. The AP and ML dimensions were mismatched between the tibial components of the nine knee systems and the Asian anthropometric data. Both groups had larger ML distal femoral dimensions than the knee systems.<bold>Conclusion: </bold>Absolute and relative differences in knee dimensions exist not only between Asian and Caucasian knees but also within both groups. Not all TKA systems had a good fit with the Asian and Caucasian knee phenotypes. An increase in the range of available knee component sizes would be beneficial, although TKA remains an adequate compromise.<bold>Level Of Evidence: </bold>III.
- Subjects
NETHERLANDS; INDONESIA; ANTHROPOMETRY; ARTHROPLASTY; TOTAL knee replacement; MEDICAL care; FEMUR surgery; KNEE surgery; KNEE anatomy; TIBIA surgery; KNEE diseases; RETROSPECTIVE studies; RADIOGRAPHY; ARTIFICIAL joints; OSTEOARTHRITIS; FEMUR; TIBIA; KNEE
- Publication
Knee Surgery, Sports Traumatology, Arthroscopy, 2021, Vol 29, Issue 2, p358
- ISSN
0942-2056
- Publication type
journal article
- DOI
10.1007/s00167-020-05914-9