Coronal Bowing of the Femur and Tibia in Chinese: Its Incidence and Effects on Total Knee Arthroplasty Planning
Purposes. To study the incidence of femoral or tibial bowing in the coronal plane in a Chinese population, and how it affects the accuracy of bone cuts for total knee replacement when an intramedullary alignment system is used. Methods. Standing radiographs of the entire lower limb of each patient w...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
SAGE Publishing
2007-04-01
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| Series: | Journal of Orthopaedic Surgery |
| Online Access: | https://doi.org/10.1177/230949900701500108 |
| _version_ | 1818295180714835968 |
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| author | WP Yau KY Chiu WM Tang TP Ng |
| author_facet | WP Yau KY Chiu WM Tang TP Ng |
| author_sort | WP Yau |
| collection | DOAJ |
| description | Purposes. To study the incidence of femoral or tibial bowing in the coronal plane in a Chinese population, and how it affects the accuracy of bone cuts for total knee replacement when an intramedullary alignment system is used. Methods. Standing radiographs of the entire lower limb of each patient with end-stage primary osteoarthritis of the knee were analysed. All radiographs were digitised and the extent of bowing in the coronal plane measured. A bowing was marked if an angulation was more than 2 degrees. The projected error of cutting was then calculated. Results. Of 93 lower limbs, 58 (62%) of the femurs had marked bowing in the coronal plane; 41 (44%) had a mean lateral bowing of 5.3 (standard deviation [SD], 3.2) degrees; 17 (18%) had a mean medial bowing of 4.4 (SD, 1.9) degrees. Marked tibial bowing in the coronal plane was less common (30 tibias, 32%). If a cutting error of more than 2 degrees was considered unacceptable, significantly more unacceptable cuts would ensue in the groups with marked bowing (p=0.003 for femurs and p<0.001 for tibia, respectively). Conclusion. The incidence of femoral or tibial bowing in the coronal plane was high in a Chinese population with end-stage osteoarthritis of the knee. This phenomenon may increase bone cut errors in total knee replacement if an intramedullary alignment system is used and the extent of bowing is not recognised. |
| first_indexed | 2024-12-13T03:43:33Z |
| format | Article |
| id | doaj.art-ebbed253092e47acb6be9251e0cba385 |
| institution | Directory Open Access Journal |
| issn | 2309-4990 |
| language | English |
| last_indexed | 2024-12-13T03:43:33Z |
| publishDate | 2007-04-01 |
| publisher | SAGE Publishing |
| record_format | Article |
| series | Journal of Orthopaedic Surgery |
| spelling | doaj.art-ebbed253092e47acb6be9251e0cba3852022-12-22T00:00:52ZengSAGE PublishingJournal of Orthopaedic Surgery2309-49902007-04-011510.1177/230949900701500108Coronal Bowing of the Femur and Tibia in Chinese: Its Incidence and Effects on Total Knee Arthroplasty PlanningWP YauKY ChiuWM TangTP NgPurposes. To study the incidence of femoral or tibial bowing in the coronal plane in a Chinese population, and how it affects the accuracy of bone cuts for total knee replacement when an intramedullary alignment system is used. Methods. Standing radiographs of the entire lower limb of each patient with end-stage primary osteoarthritis of the knee were analysed. All radiographs were digitised and the extent of bowing in the coronal plane measured. A bowing was marked if an angulation was more than 2 degrees. The projected error of cutting was then calculated. Results. Of 93 lower limbs, 58 (62%) of the femurs had marked bowing in the coronal plane; 41 (44%) had a mean lateral bowing of 5.3 (standard deviation [SD], 3.2) degrees; 17 (18%) had a mean medial bowing of 4.4 (SD, 1.9) degrees. Marked tibial bowing in the coronal plane was less common (30 tibias, 32%). If a cutting error of more than 2 degrees was considered unacceptable, significantly more unacceptable cuts would ensue in the groups with marked bowing (p=0.003 for femurs and p<0.001 for tibia, respectively). Conclusion. The incidence of femoral or tibial bowing in the coronal plane was high in a Chinese population with end-stage osteoarthritis of the knee. This phenomenon may increase bone cut errors in total knee replacement if an intramedullary alignment system is used and the extent of bowing is not recognised.https://doi.org/10.1177/230949900701500108 |
| spellingShingle | WP Yau KY Chiu WM Tang TP Ng Coronal Bowing of the Femur and Tibia in Chinese: Its Incidence and Effects on Total Knee Arthroplasty Planning Journal of Orthopaedic Surgery |
| title | Coronal Bowing of the Femur and Tibia in Chinese: Its Incidence and Effects on Total Knee Arthroplasty Planning |
| title_full | Coronal Bowing of the Femur and Tibia in Chinese: Its Incidence and Effects on Total Knee Arthroplasty Planning |
| title_fullStr | Coronal Bowing of the Femur and Tibia in Chinese: Its Incidence and Effects on Total Knee Arthroplasty Planning |
| title_full_unstemmed | Coronal Bowing of the Femur and Tibia in Chinese: Its Incidence and Effects on Total Knee Arthroplasty Planning |
| title_short | Coronal Bowing of the Femur and Tibia in Chinese: Its Incidence and Effects on Total Knee Arthroplasty Planning |
| title_sort | coronal bowing of the femur and tibia in chinese its incidence and effects on total knee arthroplasty planning |
| url | https://doi.org/10.1177/230949900701500108 |
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