Proximal Femoral Dimension in Elderly Chinese Women with Hip Fractures in Taiwan

Yang, Rong‐Sen; Wang, S.-S.; Liu, T.-K.

doi:10.1007/s001980050203

Cited by 24 publications

(34 citation statements)

References 38 publications

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“…The proximal femur acts as a brace, and its biomechanical properties depend on the width and length of the femoral neck. In several studies, hip axis length (HAL) measured on digitized [7,8] or nondigitized [9][10][11][12][13][14][15] pelvic radiographs or on DXA scans [11,[16][17][18] was associated with hip fracture independently from femoral neck BMD.…”

Section: Introductionmentioning

confidence: 99%

Hip Fracture Risk and Proximal Femur Geometry from DXA Scans

et al. 2002

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In this retrospective study of hip fracture risk evaluation from hip dual-energy X-ray absorptiometry (DXA) scans, our objectives were to determine which part of the femoral neck length contributes most to the fracture risk and to define a geometric parameter better than hip axis length (HAL) for discriminating hip fracture patients. Forty-nine Caucasian women with a nontraumatic femoral neck fracture were matched on age to 49 normal women and on both age and femoral neck bone mineral density (BMD) to 49 unfractured women. In addition to BMD, geometric parameters including neck-shaft angle, neck width and several HAL segments were evaluated by discriminant analysis to determine which was the best hip fracture discriminator. Neck-shaft angle had a limited influence on the hip fracture risk. Age-related bone loss was associated with a neck width increase in unfractured and fractured patients. HAL was significantly longer in fractured patients and was a significant discriminator between fractured patients and normal controls. HAL was not significant as a discriminator between fractured and low-BMD unfractured patients. The intertrochanter-head center distance (from the intertrochanteric line to the femoral head center) coincides with the femoral lever arm and includes no segments that adapt to BMD changes, such as the greater trochanter-intertrochanter distance. Among all tested lengths, this segment was the part of HAL that discriminated best between fractured and low-BMD unfractured patients. A longer intertrochanter-head center distance increased the risk of femoral neck fracture among low-BMD patients. Including automatic measurement of this segment in standard DXA protocols may prove useful in identifying patients at high risk for hip fracture. At present, HAL remains the easier neck length to measure, but automatic evaluation of the intertrochanter-head center distance must be a goal for future image analysis development.

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Section: Introductionmentioning

confidence: 99%

Hip Fracture Risk and Proximal Femur Geometry from DXA Scans

et al. 2002

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“…In our study, besides BMD values we decided to use radiographies to calculate the proximal geometrical values which were previously used directly for the measurement of proximal femoral geometry in different studies (Glüer et al, 1994;Faulkner et al, 1995;Peacock et al, 1998;Karlsson et al, 1996;Theobald et al, 1998;Yang et al, 1999). The results of measurements from direct radiographies are in millimeters (mm): 36.62 6 3.87 mm for the femoral neck width in our fracture group and 35.38 6 3.06 mm in the control group.…”

Section: Discussionmentioning

confidence: 99%

The association of proximal femur geometry with hip fracture risk

et al. 2008

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We aimed to discuss the risk assessments of patients with hip fractures due to the fall-related moderate or minimal trauma and compare them with non-fractured control patients by bone mineral density (BMD) and proximal femur geometric measurements to assess whether geometric measurements of femoral dimensions were associated with femoral strength and hip fracture risk. Forty-two osteoporotic patients with proximal femur fracture and 40 osteoporotic non-fractured age and gender-matched controls were included in the study. Lunar DXA was used for BMD measurements and proximal femur geometric measurements were performed manually on direct X-rays as hip axial length (HAL), femoral length (FL), and femoral neck width (FW). The trochanteric and total BMD values of the fracture group were significantly lower than the control group. There was a significant increase in FW/FL ratio in the fracture group that would be of specific importance for guidance: if FL values did not increase as did FW, it would point out a risk for fracture. The trochanteric BMD values were correlated with all increased measurements in the control group. There are genetically determined adaptive differences among individuals concerning bone morphology and bone mineral distribution. These different adaptations result in different bone strengths and fracture formation risk.

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“…Proximal femur anatomy provide information about the hip joint mechanism 5 . Thus, proksimal femur geometry can be used in estimation of the hip fracture 8,9 . Moreover, loss of bone mineral density in proksimal femur increases inclination to fall.…”

Section: Discussionmentioning

confidence: 99%

“…If impact stres increases and bone strength decreases, this fracture will occur easily. Furhermore, it has been shown that impact stres of proksimal femur leads to longer femoral neck length (NL) and smaller crosssectional area of the femoral neck 8,9 . It has been also determined that the racial differences in NL affect the differences in fracture risk incidence.…”

Section: Discussionmentioning

confidence: 99%

Proksimal ve Distal Femur Morfolojisinin Osteometrik Değerleri

Özandaç¹,

Göker²,

Yücel³

et al. 2015

Cukurova Medical Journal

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Purpose: The current study was undertaken to determine the surgically relevant parameters of proximal and distal femur from right and left femora in our population. Methods: These measurements were taken from 400 adult femora (200 right, 200 left) from Department of Anatomy laboratory of Çukurova University, Faculty of Medicine using an electronic digital caliper and goniometer. The mean values of the neck of the length (NL), maximum femoral length (FL), the length of femoral shaft (FSL), intertrochanteric apical axis length (ITAAL), maximum vertical diameter of the femoral head (VDH), neck shaft angle (NSA), superiorinferior femoral neck diameter (SID) and intercondylar notch witch (ICNW) were taken. Results:The mean values of these measurements were found to be 22.2 ± 3.0 mm, 429.5 ± 35.0 mm, 306.5 ± 26.7 mm, 61.9 ± 5.7 mm, 44.2 ± 3.8 mm, 121. ÖZETAmaç: Çalışmamızda, popülasyonumuzdaki sağ ve sol distal ve proksimal femurun cerrahi olarak ilgili ölçüm değerlerinin belirlenmesi amaçlanmıştır. Materyal ve Metod: Laboratuvarımızda bulunan 400 adet femurda milimetrik bir kumpas ve goniometre yardımıyla collum femoris ve femur'un maksimum uzunluğu ortalaması, femur şaftı uzunluğu ortalaması, linea intertrochanterica ile fovea capitis arasındaki uzaklık (intertrokanterik apikal aks uzunluğu) ortalaması, caput femoris'in maksimum vertikal uzunluk ortalaması, femur boyun şaft açısı ortalaması, collum femoris'in supero-inferior uzunluk ortalaması ve intercondylar mesafe uzunluğu ortalaması ölçülmüştür. Bulgular: Ölçümlerimize ait değerler sırasıyla; sağda 22.2 ± 3.0 mm, 429.5 ± 35.0 mm, 306.5 ± 26.7 mm, 61.9 ± 5.7 mm, 44.2 ± 3.8 mm, 121.1 ± 4.00, 30.8 ± 3.1 ve 2.4 ± 0.2 cm bulunurken, aynı değerler sol tarafta 22.5 ± 4.4 mm, 431.3 ±26.2 mm, 299.5 ± 59.4 mm, 61.4 ± 5.1 mm, 44.2 ± 3.3 mm, 121.2 ± 4.00, 30.0 ± 2.9 ve 2.3 ± 0.2 cm olarak bulunmuştur. Sonuç: Çalışmamızda elde edilen değerlerin popülasyonumuzda yapılacak olan kalça ve diz ile ilgili cerrahi girişimlerde yardımcı olacağını düşünmekteyiz. Anahtar kelimeler: Femur morfometrisi, proksimal femur ve distal femur.

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Proximal Femoral Dimension in Elderly Chinese Women with Hip Fractures in Taiwan

Cited by 24 publications

References 38 publications

Hip Fracture Risk and Proximal Femur Geometry from DXA Scans

Hip Fracture Risk and Proximal Femur Geometry from DXA Scans

The association of proximal femur geometry with hip fracture risk

Proksimal ve Distal Femur Morfolojisinin Osteometrik Değerleri

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