Cited by 104Bone health and osteoporosis researchSpaceflight effects on biologyBone fractures and treatments

BMD and Bone Geometry in Transtibial and Transfemoral Amputees

Sherk, Vanessa D, Bemben, Michael G, Bemben, Debra A·2008·Journal of Bone and Mineral Research

Abstract

Prolonged unloading of bone(s) in the residual limb after amputation may cause significant bone loss in the hip and distal bony end of the residual limb. The purpose of this study was to examine the effect of amputation on bone geometry, volumetric BMD (vBMD), and areal BMD (aBMD) by comparing the intact and residual limbs in unilateral transfemoral and transtibial amputees. Amputees (seven above-knee; seven below-knee) and two groups of nonamputee control subjects gave informed consent to participate in this study. aBMD of the dual proximal femur, lumbar spine, and total body was assessed using DXA. Bone geometry and vBMD were assessed at the distal ends of the residual limb and intact limb and at a comparable cross-sectional slice of the intact limb using pQCT (Stratec XCT 3000). There were no significant group differences in age, height, weight, physical activity, time as an amputee, hours wearing a prosthesis per day, or total body and lumbar spine BMD and BMC. There were significant side × group interactions for total hip, femoral neck, and trochanter BMD, with the amputated side having lower BMD, and differences being most severe in above-knee amputees. Total and cortical vBMD and area were significantly lower at the end of the residual limb compared with the similar slice of the intact limb for both above- and below-knee amputees. In conclusion, amputees exhibited large decrements in BMD, both at the hip and at the end of the residual limb, compared with the intact side. These lower BMD values put amputees, particularly the above-knee amputees, at increased risk for osteoporosis and fragility fractures in the hip.

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Crossref · 10.1359/jbmr.080402

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Authors
Sherk, V. D., Bemben, M. G., & Bemben, D. A.
Affiliations
University of Oklahoma (US)
Corresponding author
Bemben, Debra A
Venue
Journal of Bone and Mineral Research
Published
2008-09-01
Volume
23
Issue
9
Pages
1449-1457
ISSN
  • 0884-0431 (ISSN-L)
  • 1523-4681
OpenAlex
W2068048966
Cited by
104
References
42
Citations by year
2026: 9 · 2025: 7 · 2024: 7 · 2023: 10 · 2022: 12 · 2021: 6 · 2020: 9 · 2019: 5 · 2018: 6 · 2017: 5 · 2016: 5 · 2015: 6 · 2014: 3 · 2013: 3 · 2012: 8
FWCI
0.95
Type
journal article
Language
en
Open access
closed
Locations
  • Journal of Bone and Mineral Research (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Health Sciences › Medicine › Orthopedics and Sports Medicine › Bone health and osteoporosis research
  • Health Sciences › Medicine › Physiology › Spaceflight effects on biology
  • Health Sciences › Medicine › Epidemiology › Bone fractures and treatments
Keywords
amputation, transtibial amputation, transfemoral amputation, residual limb, bone mineral density, bone geometry, hip bone, osteoporosis, fragility fractures, below-knee amputees, bone unloading
MeSH terms
Adolescent, Adult, Amputation, Surgical, Amputees, Bone Diseases, Metabolic, Child, Child, Preschool, Female, Femur, Humans, Lumbar Vertebrae, Male, Middle Aged, Osteoporosis, Tibia, Tomography, X-Ray Computed, United States, Absorptiometry, Photon, Bone Density, Prevalence

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