Skip to main content
Journal cover image

The influence of patient age and bone mineral density on osteotomy fixation stability after hallux valgus surgery: A biomechanical study.

Publication ,  Journal Article
Hofstaetter, SG; Riedl, M; Glisson, RR; Trieb, K; Easley, ME
Published in: Clin Biomech (Bristol)
February 2016

BACKGROUND: Oblique osteotomies of the first metatarsal are common surgical treatments for moderate to severe hallux valgus deformity. Osteotomy fixation integrity is important to minimize interfragment motion and maintain correction during healing, and our clinical observations suggest that patient age and bone quality affect fixation stability and ultimately the clinical outcome. Accordingly, this study correlated these patient factors with key mechanical measures of osteotomy angulation resistance in a cadaver hallux valgus correction model. METHODS: Standard Ludloff osteotomies were created in 31 fresh-frozen first metatarsals and fixed with two cannulated, dual-pitch headless screws. Each specimen underwent 1000 plantar-to-dorsal bending loads while monitoring bending stiffness and distal fragment dorsal angulation. Donor age and bone mineral density were then correlated with each mechanical measure at selected cycling increments. FINDINGS: We found significant positive correlation between bone mineral density and osteotomy fixation stiffness for all evaluated load cycles. Moderate negative correlation between bone density and angulation was identified, significant for load cycle 500. There was a weak, nonsignificant negative correlation between donor age and osteotomy bending stiffness, with r ranging from -0.134 to -0.243 between the first and 1000th loads. Little correlation was demonstrable between age and angulation. INTERPRETATION: Because low bone density correlates with decreased osteotomy site stiffness and increased angulation under load, patient compliance and protected weight bearing in the early postoperative phase are particularly important if bone mineral density is exceptionally low. Correspondingly, patients with especially high bone mineral density may be considered candidates for earlier weight bearing and active physical therapy.

Duke Scholars

Altmetric Attention Stats
Dimensions Citation Stats

Published In

Clin Biomech (Bristol)

DOI

EISSN

1879-1271

Publication Date

February 2016

Volume

32

Start / End Page

255 / 260

Location

England

Related Subject Headings

  • Weight-Bearing
  • Stress, Mechanical
  • Osteotomy
  • Orthopedics
  • Middle Aged
  • Metatarsal Bones
  • Male
  • Humans
  • Hallux Valgus
  • Female
 

Citation

APA
Chicago
ICMJE
MLA
NLM
Hofstaetter, S. G., Riedl, M., Glisson, R. R., Trieb, K., & Easley, M. E. (2016). The influence of patient age and bone mineral density on osteotomy fixation stability after hallux valgus surgery: A biomechanical study. Clin Biomech (Bristol), 32, 255–260. https://doi.org/10.1016/j.clinbiomech.2015.11.002
Hofstaetter, Stefan G., Markus Riedl, Richard R. Glisson, Klemens Trieb, and Mark E. Easley. “The influence of patient age and bone mineral density on osteotomy fixation stability after hallux valgus surgery: A biomechanical study.Clin Biomech (Bristol) 32 (February 2016): 255–60. https://doi.org/10.1016/j.clinbiomech.2015.11.002.
Hofstaetter SG, Riedl M, Glisson RR, Trieb K, Easley ME. The influence of patient age and bone mineral density on osteotomy fixation stability after hallux valgus surgery: A biomechanical study. Clin Biomech (Bristol). 2016 Feb;32:255–60.
Hofstaetter, Stefan G., et al. “The influence of patient age and bone mineral density on osteotomy fixation stability after hallux valgus surgery: A biomechanical study.Clin Biomech (Bristol), vol. 32, Feb. 2016, pp. 255–60. Pubmed, doi:10.1016/j.clinbiomech.2015.11.002.
Hofstaetter SG, Riedl M, Glisson RR, Trieb K, Easley ME. The influence of patient age and bone mineral density on osteotomy fixation stability after hallux valgus surgery: A biomechanical study. Clin Biomech (Bristol). 2016 Feb;32:255–260.
Journal cover image

Published In

Clin Biomech (Bristol)

DOI

EISSN

1879-1271

Publication Date

February 2016

Volume

32

Start / End Page

255 / 260

Location

England

Related Subject Headings

  • Weight-Bearing
  • Stress, Mechanical
  • Osteotomy
  • Orthopedics
  • Middle Aged
  • Metatarsal Bones
  • Male
  • Humans
  • Hallux Valgus
  • Female