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Martinkevich P, Rahbek O, Møller-Madsen B, et al. Precise and feasible measurements of lateral calcaneal lengthening osteotomies by radiostereometric analysis in cadaver feet. Bone Joint Res. 2015;4(5):78-83doi: 10.1302/2046-3758.45.2000292.
Martinkevich, P., Rahbek, O., Møller-Madsen, B., Søballe, K., & Stilling, M. (2015). Precise and feasible measurements of lateral calcaneal lengthening osteotomies by radiostereometric analysis in cadaver feet. Bone & joint research, 4(5), 78-83. https://doi.org/10.1302/2046-3758.45.2000292
Martinkevich, P, et al. "Precise and feasible measurements of lateral calcaneal lengthening osteotomies by radiostereometric analysis in cadaver feet." Bone & joint research vol. 4,5 (2015): 78-83. doi: https://doi.org/10.1302/2046-3758.45.2000292
Martinkevich P, Rahbek O, Møller-Madsen B, Søballe K, Stilling M. Precise and feasible measurements of lateral calcaneal lengthening osteotomies by radiostereometric analysis in cadaver feet. Bone Joint Res. 2015 May;4(5):78-83. doi: 10.1302/2046-3758.45.2000292. PMID: 25957380; PMCID: PMC4448599.
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Bone Joint Res. 2015 May;4(5):78-83. doi: 10.1302/2046-3758.45.2000292.

Precise and feasible measurements of lateral calcaneal lengthening osteotomies by radiostereometric analysis in cadaver feet.

Bone & joint research

P Martinkevich, O Rahbek, B Møller-Madsen, K Søballe, M Stilling

Affiliations

  1. Department of Children's Orthopaedics, Aarhus University Hospital, Nørrebrogade 44, Building 1A, 2nd floor, 8000, Denmark.
  2. Aarhus University Hospital, Tage-Hansens Gade 4, 8000 Aarhus C, Denmark.
  3. Aarhus University Hospital, Palle Juul-Jensens Boulevard 82, 8200 Aarhus N, Denmark.

PMID: 25957380 PMCID: PMC4448599 DOI: 10.1302/2046-3758.45.2000292

Abstract

OBJECTIVES: Lengthening osteotomies of the calcaneus in children are in general grafted with bone from the iliac crest. Artificial bone grafts have been introduced, however, their structural and clinical durability has not been documented. Radiostereometric analysis (RSA) is a very accurate and precise method for measurements of rigid body movements including the evaluation of joint implant and fracture stability, however, RSA has not previously been used in clinical studies of calcaneal osteotomies. We assessed the precision of RSA as a measurement tool in a lateral calcaneal lengthening osteotomy (LCLO).

METHODS: LCLO was performed in six fixed adult cadaver feet. Tantalum markers were inserted on each side of the osteotomy and in the cuboideum. Lengthening was done with a plexiglas wedge. A total of 24 radiological double examinations were obtained. Two feet were excluded due to loose and poorly dispersed markers. Precision was assessed as systematic bias and 95% repeatability limits.

RESULTS: Systematic bias was generally below 0.10 mm for translations. Precision of migration measurements was below 0.2 mm for translations in the osteotomy.

CONCLUSION: RSA is a precise tool for the evaluation of stability in LCLO. Cite this article: Bone Joint Res 2015;4:78-83.

©2015 The British Editorial Society of Bone & Joint Surgery.

Keywords: Flatfoot; Calcaneal osteotomy; Radiostereometric analysis; precision

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