TY - JOUR
T1 - Mismatched knee implants in Indonesian and Dutch patients
T2 - a need for increasing the size
AU - Budhiparama, Nicolaas C.
AU - Lumban-Gaol, Imelda
AU - Ifran, Nadia Nastassia
AU - de Groot, Pieter C.J.
AU - Utomo, Dwikora Novembri
AU - Nelissen, Rob G.H.H.
N1 - Publisher Copyright:
© 2020, European Society of Sports Traumatology, Knee Surgery, Arthroscopy (ESSKA).
PY - 2021/2
Y1 - 2021/2
N2 - Purpose: 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. Methods: 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. Results: 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. Conclusion: 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. Level of evidence: III.
AB - Purpose: 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. Methods: 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. Results: 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. Conclusion: 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. Level of evidence: III.
KW - Anthropometry
KW - Asian
KW - Caucasian
KW - Total knee arthroplasty
KW - Total knee replacement
UR - http://www.scopus.com/inward/record.url?scp=85081912996&partnerID=8YFLogxK
U2 - 10.1007/s00167-020-05914-9
DO - 10.1007/s00167-020-05914-9
M3 - Article
C2 - 32162046
AN - SCOPUS:85081912996
SN - 0942-2056
VL - 29
SP - 358
EP - 369
JO - Knee Surgery, Sports Traumatology, Arthroscopy
JF - Knee Surgery, Sports Traumatology, Arthroscopy
IS - 2
ER -