Hip impact velocities and body configurations for voluntary falls from standing height

Kroonenberg, A. J. van den; Hayes, Wilson C.; McMahon, Thomas A.

doi:10.1016/0021-9290(95)00134-4

Cited by 153 publications

(87 citation statements)

References 15 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…(9)(10)(11)(12) For the hip, the applied load was estimated from data on the kinematics of sideways falls with impact at the hip. (12,29,30) The load applied to the wrist during a forwards fall was estimated from data predicting impact forces on the upper extremity during falls on the outstretched hand. (31) For each type of fall, individual height and weight data were used to estimate subjectspecific loads that would be applied to bone as a result of a fall.…”

Section: Estimation Of Applied Loads and Load/strength Ratiosmentioning

confidence: 99%

Population-Based Analysis of the Relationship of Whole Bone Strength Indices and Fall-Related Loads to Age- and Sex-Specific Patterns of Hip and Wrist Fractures

Riggs

Melton

Robb

et al. 2006

Journal of Bone and Mineral Research

109

View full text Add to dashboard Cite

In an age-and sex-stratified population sample (n = 700), we estimated fall-related loads and bone strength indices at the UDR and FN. These load/strength ratios more closely simulated patterns of wrist and hip fractures occurring in the same population than did measurement of vBMD.Introduction: Areal BMD measurements, although associated with fracture risk, incompletely explain patterns of fragility fractures. Moreover, population-based assessments relating applied loads and whole bone strength to fracture patterns have not been made. Materials and Methods: Using QCT, we assessed volumetric BMD (vBMD), cross-sectional geometry, and axial (EA) and flexural (EI) rigidities (indices of bone's resistance to compressive and bending loads, respectively) at the ultradistal radius (UDR) and femoral neck (FN) and estimated the loads applied to the wrist and hip during a fall. We used fall load (FL)/bone strength ratios to estimate fracture risk. Results: vBMD in young adults was similar between sexes. Decreases in vBMD over life were also similar (30% and 28%) at UDR but were somewhat greater (46% and 34%) at FN in women versus men, respectively. In young adults, FL/strength ratios at UDR were 32-51% lower (better) in men than in women and increased (worsened) over life less in men (+4% to +22%) than in women (+20% to +33%). In young adults, FL/strength ratios at FN were only marginally better in men than in women but worsened less over life in men (+22% to +36%) than in women (+40% to +62%). Conclusions: The 6:1 female preponderance and the virtual immunity of men for age-related increases in wrist fractures are largely explained by the more favorable FL/strength ratios at UDR in young adult men (because of larger bone size and more favorable geometry) versus women and to maintaining this advantage over life. The 2-fold lower incidence of hip fractures in men versus women is largely explained by age-related increases (worsening) of FL/bone strength ratios that are only one-half of the increases in women. The moderate increases in these ratios with aging are insufficient to explain the >4-fold increase in hip fracture incidence after age 75 in both sexes, suggesting contributions of other factors, especially the well-documented increased frequency of injurious falls among the elderly.

show abstract

Section: Estimation Of Applied Loads and Load/strength Ratiosmentioning

confidence: 99%

Population-Based Analysis of the Relationship of Whole Bone Strength Indices and Fall-Related Loads to Age- and Sex-Specific Patterns of Hip and Wrist Fractures

Riggs

Melton

Robb

et al. 2006

Journal of Bone and Mineral Research

109

View full text Add to dashboard Cite

show abstract

“…Other reason could be perhaps with increasing age, there is a tendency to fall, and that too in a different way [22]. Fall onto the greater trochanter is a phenomenon of old age and it has been shown that the lateral fall onto the greater trochanter is particularly difficult to protect oneself during the fall [23][24][25].…”

Section: Discussionmentioning

confidence: 99%

Hip fracture subtypes, duration of hospital stay and its association with co morbidities

Krishnan¹,

Shenoy.T²,

Raffic³

2014

IOSRJDMS

View full text Add to dashboard Cite

“…But naturally, the hip is cyclically loaded with alternating phases of touch-down and separation during gait. In addition, the hip joint normally transmits forces much lower than this, between 4.8 and 10 kN, depending on the method of measurement and the type of daily activities, including unwanted stumbling and falling 20,21 . As these values are far below the reported fracture threshold of modern ceramic liners, events such as fracture of a 1-piece ceramic liner should be interpreted as irregularities that might be explained as part of a range of pathological scenarios described in our case report.…”

Section: Discussionmentioning

confidence: 99%

Early Fracture of a Plasma Cup Ceramic Liner: A Case Report and Surface Analysis

Gallo¹,

Stewart²,

Novotný³

et al. 2007

BIOMED PAP

View full text Add to dashboard Cite

Hip impact velocities and body configurations for voluntary falls from standing height

Cited by 153 publications

References 15 publications

Population-Based Analysis of the Relationship of Whole Bone Strength Indices and Fall-Related Loads to Age- and Sex-Specific Patterns of Hip and Wrist Fractures

Population-Based Analysis of the Relationship of Whole Bone Strength Indices and Fall-Related Loads to Age- and Sex-Specific Patterns of Hip and Wrist Fractures

Hip fracture subtypes, duration of hospital stay and its association with co morbidities

Early Fracture of a Plasma Cup Ceramic Liner: A Case Report and Surface Analysis

Contact Info

Product

Resources

About