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Biomechanical consequences of fracture and repair of the posterior wall of the acetabulum.

Publication ,  Journal Article
Olson, SA; Bay, BK; Chapman, MW; Sharkey, NA
Published in: J Bone Joint Surg Am
August 1995

We measured the distribution of contact area and pressure between the acetabulum and the femoral head of cadaveric pelves in three different conditions: intact, with an operatively created fracture of the posterior wall, and after anatomical reduction and fixation of the fracture with a buttress plate and interfragmentary screws. The study involved eight cadaveric hip joints from five pelves loaded to 2000 newtons in simulated single-limb stance. Measurements were made with pressure-sensitive film. The acetabulum was divided into three areas--the anterior wall, the superior aspect, and the posterior wall--for the analysis of the data. Creation of a fracture of the posterior wall was followed by an increase in contact area, maximum pressure, and contact force in the superior aspect of the acetabulum. A concomitant decrease in these parameters was observed in the anterior and posterior walls. Anatomical reduction and fixation of the fracture with a plate and screws did not restore the pattern of loading to pre-injury levels.

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Published In

J Bone Joint Surg Am

DOI

ISSN

0021-9355

Publication Date

August 1995

Volume

77

Issue

8

Start / End Page

1184 / 1192

Location

United States

Related Subject Headings

  • Weight-Bearing
  • Orthopedics
  • Middle Aged
  • Humans
  • Hip Joint
  • Fractures, Bone
  • Fracture Fixation, Internal
  • Cadaver
  • Bone Screws
  • Bone Plates
 

Citation

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Chicago
ICMJE
MLA
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Olson, S. A., Bay, B. K., Chapman, M. W., & Sharkey, N. A. (1995). Biomechanical consequences of fracture and repair of the posterior wall of the acetabulum. J Bone Joint Surg Am, 77(8), 1184–1192. https://doi.org/10.2106/00004623-199508000-00007
Olson, S. A., B. K. Bay, M. W. Chapman, and N. A. Sharkey. “Biomechanical consequences of fracture and repair of the posterior wall of the acetabulum.J Bone Joint Surg Am 77, no. 8 (August 1995): 1184–92. https://doi.org/10.2106/00004623-199508000-00007.
Olson SA, Bay BK, Chapman MW, Sharkey NA. Biomechanical consequences of fracture and repair of the posterior wall of the acetabulum. J Bone Joint Surg Am. 1995 Aug;77(8):1184–92.
Olson, S. A., et al. “Biomechanical consequences of fracture and repair of the posterior wall of the acetabulum.J Bone Joint Surg Am, vol. 77, no. 8, Aug. 1995, pp. 1184–92. Pubmed, doi:10.2106/00004623-199508000-00007.
Olson SA, Bay BK, Chapman MW, Sharkey NA. Biomechanical consequences of fracture and repair of the posterior wall of the acetabulum. J Bone Joint Surg Am. 1995 Aug;77(8):1184–1192.
Journal cover image

Published In

J Bone Joint Surg Am

DOI

ISSN

0021-9355

Publication Date

August 1995

Volume

77

Issue

8

Start / End Page

1184 / 1192

Location

United States

Related Subject Headings

  • Weight-Bearing
  • Orthopedics
  • Middle Aged
  • Humans
  • Hip Joint
  • Fractures, Bone
  • Fracture Fixation, Internal
  • Cadaver
  • Bone Screws
  • Bone Plates