Proximal tibia bone mineral density correlates more closely with hip density in men with knee osteoarthritis
Purpose: Achieving biological fixation of the often loosened tibia is increasingly important for total knee arthroplasty (TKA), with one key factor being the bone density of the proximal tibia. This study examined whether hip bone mineral density (BMD), the most common diagnostic tool for osteoporos...
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Elsevier
2025-09-01
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| Series: | Journal of Joint Surgery and Research |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2949705125000131 |
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| author | Junya Itou Ayano Kuwasawa Kotaro Nihei Ken Okazaki |
| author_facet | Junya Itou Ayano Kuwasawa Kotaro Nihei Ken Okazaki |
| author_sort | Junya Itou |
| collection | DOAJ |
| description | Purpose: Achieving biological fixation of the often loosened tibia is increasingly important for total knee arthroplasty (TKA), with one key factor being the bone density of the proximal tibia. This study examined whether hip bone mineral density (BMD), the most common diagnostic tool for osteoporosis, can estimate tibial BMD in both sexes. Methods: This retrospective study included patients who underwent primary TKA with hip and tibial BMD measurement. Tibial BMD was measured 10 mm distal to the lateral tibial articular surface, separately for the medial (BMDm) and lateral (BMDl) sides. Additionally, the association between BMD and lower limb alignment was evaluated. Results: In total, 1012 knees were included (79.3% in women). The mean patient age at surgery was 73.3 ± 7.5 years. The mean total hip BMD for women and men was 0.79 ± 0.13 g/cm2 and 0.95 ± 0.16 g/cm2, respectively. The mean BMDm and BMDl was, respectively, 0.75 ± 0.16 g/cm2 and 0.63 ± 0.13 g/cm2 in women and 0.92 ± 0.18 g/cm2 and 0.89 ± 0.18 g/cm2 in men. Both BMDm and BMDl showed a moderate correlation with hip BMD (r = 0.67 and 0.66, respectively) in men. In women, BMDm showed a weak correlation (r = 0.47). Regarding lower limb alignment, BMDm was significantly higher in varus alignment than in neutral or valgus alignment. BMDl did not change with lower limb alignment. Conclusions: BMDm and BMDl were moderately correlated with hip BMD in men, while BMDm showed a low correlation in women. |
| format | Article |
| id | doaj-art-31991c877a2f404ca8d59b805e69d54a |
| institution | Kabale University |
| issn | 2949-7051 |
| language | English |
| publishDate | 2025-09-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Joint Surgery and Research |
| spelling | doaj-art-31991c877a2f404ca8d59b805e69d54a2025-08-26T04:14:49ZengElsevierJournal of Joint Surgery and Research2949-70512025-09-013312112710.1016/j.jjoisr.2025.06.001Proximal tibia bone mineral density correlates more closely with hip density in men with knee osteoarthritisJunya Itou0Ayano Kuwasawa1Kotaro Nihei2Ken Okazaki3Department of Orthopaedic Surgery, Tokyo Women's Medical University, 8-1 Kawada-cho, Shinjuku, Tokyo 162-8666, Japan; Department of Orthopaedic Surgery, Saitama Cooperative Hospital, 1317 Kizoro, Kawaguchi, Saitama 333-0831 JapanDepartment of Orthopaedic Surgery, Saitama Cooperative Hospital, 1317 Kizoro, Kawaguchi, Saitama 333-0831 Japan; Corresponding author. Department of Orthopaedic Surgery, Saitama Cooperative Hospital, 1317 Kizoro, Kawaguchi, Saitama 333-0831, Japan.Department of Orthopaedic Surgery, Saitama Cooperative Hospital, 1317 Kizoro, Kawaguchi, Saitama 333-0831 JapanDepartment of Orthopaedic Surgery, Tokyo Women's Medical University, 8-1 Kawada-cho, Shinjuku, Tokyo 162-8666, JapanPurpose: Achieving biological fixation of the often loosened tibia is increasingly important for total knee arthroplasty (TKA), with one key factor being the bone density of the proximal tibia. This study examined whether hip bone mineral density (BMD), the most common diagnostic tool for osteoporosis, can estimate tibial BMD in both sexes. Methods: This retrospective study included patients who underwent primary TKA with hip and tibial BMD measurement. Tibial BMD was measured 10 mm distal to the lateral tibial articular surface, separately for the medial (BMDm) and lateral (BMDl) sides. Additionally, the association between BMD and lower limb alignment was evaluated. Results: In total, 1012 knees were included (79.3% in women). The mean patient age at surgery was 73.3 ± 7.5 years. The mean total hip BMD for women and men was 0.79 ± 0.13 g/cm2 and 0.95 ± 0.16 g/cm2, respectively. The mean BMDm and BMDl was, respectively, 0.75 ± 0.16 g/cm2 and 0.63 ± 0.13 g/cm2 in women and 0.92 ± 0.18 g/cm2 and 0.89 ± 0.18 g/cm2 in men. Both BMDm and BMDl showed a moderate correlation with hip BMD (r = 0.67 and 0.66, respectively) in men. In women, BMDm showed a weak correlation (r = 0.47). Regarding lower limb alignment, BMDm was significantly higher in varus alignment than in neutral or valgus alignment. BMDl did not change with lower limb alignment. Conclusions: BMDm and BMDl were moderately correlated with hip BMD in men, while BMDm showed a low correlation in women.http://www.sciencedirect.com/science/article/pii/S2949705125000131Total knee arthroplastyBone mineral densityCementlessAlignment |
| spellingShingle | Junya Itou Ayano Kuwasawa Kotaro Nihei Ken Okazaki Proximal tibia bone mineral density correlates more closely with hip density in men with knee osteoarthritis Journal of Joint Surgery and Research Total knee arthroplasty Bone mineral density Cementless Alignment |
| title | Proximal tibia bone mineral density correlates more closely with hip density in men with knee osteoarthritis |
| title_full | Proximal tibia bone mineral density correlates more closely with hip density in men with knee osteoarthritis |
| title_fullStr | Proximal tibia bone mineral density correlates more closely with hip density in men with knee osteoarthritis |
| title_full_unstemmed | Proximal tibia bone mineral density correlates more closely with hip density in men with knee osteoarthritis |
| title_short | Proximal tibia bone mineral density correlates more closely with hip density in men with knee osteoarthritis |
| title_sort | proximal tibia bone mineral density correlates more closely with hip density in men with knee osteoarthritis |
| topic | Total knee arthroplasty Bone mineral density Cementless Alignment |
| url | http://www.sciencedirect.com/science/article/pii/S2949705125000131 |
| work_keys_str_mv | AT junyaitou proximaltibiabonemineraldensitycorrelatesmorecloselywithhipdensityinmenwithkneeosteoarthritis AT ayanokuwasawa proximaltibiabonemineraldensitycorrelatesmorecloselywithhipdensityinmenwithkneeosteoarthritis AT kotaronihei proximaltibiabonemineraldensitycorrelatesmorecloselywithhipdensityinmenwithkneeosteoarthritis AT kenokazaki proximaltibiabonemineraldensitycorrelatesmorecloselywithhipdensityinmenwithkneeosteoarthritis |