Kniegelenknahe Osteotomietechniken: Effekt auf Keilvolumina und knöcherne Kontaktflächen

Translated title of the contribution: Osteotomy techniques close to the knee: Effect on wedge volume and bony contact surface

D. Pape*, R. van Heerwaarden, M. Haag, R. Seil, H. Madry

*Corresponding author for this work

Research output: Contribution to journalArticleResearchpeer-review

4 Citations (Scopus)


Methods: Tibial and femoral artificial bones were assigned to four different groups of valgisation and varisation osteotomy consisting of open wedge and closed wedge techniques in a uniplanar and biplanar fashion. Bone surface areas of all osteotomy planes were quantified. Wedge volumes were determined using a prism-based algorithm and applying standardized wedge heights of 5 mm, 10 mm and 15 mm.

Background: Bone geometry following osteotomy around the knee suggests that biplanar rather than uniplanar open wedge techniques simultaneously create smaller wedge volumes and larger bone surface areas. However, precise data on the bone surface area and wedge volume resulting from both open and closed wedge high tibial osteotomy (HTO) and distal femoral osteotomy (DFO) techniques remain unknown.

Objectives: It was hypothesized that biplanar rather than uniplanar osteotomy techniques better reflect the ideal geometrical requirements for bone healing, representing a large cancellous bone surface combined with a small wedge volume.

Results: Both femoral and tibial biplanar osteotomy techniques created larger contact areas and smaller wedge volumes compared to the uniplanar open wedge techniques.

Conclusion: Although this idealized geometrical view of bony geometry excludes all biological factors that might influence bone healing, the current data suggest a general rule for the standard osteotomy techniques applied and all surgical modifications: reducing the amount of slow gap healing and simultaneously increasing the area of faster contact healing may be beneficial for osteotomy healing. Thus, biplanar rather than uniplanar osteotomy should be performed for osteotomy around the knee.

Translated title of the contributionOsteotomy techniques close to the knee: Effect on wedge volume and bony contact surface
Original languageGerman
Pages (from-to)966-975
Number of pages10
JournalDer Orthopade
Issue number11
Publication statusPublished - Nov 2014
Externally publishedYes


  • Bone geometry
  • Bone healing
  • Healing rate
  • Osteotomy, high tibial
  • Wedge volume


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