Author's reply to comments on Shyam et al.: Leg lengthening by distraction osteogenesis using the Ilizarov apparatus: a novel concept of tibia callus subsidence and its influencing factors

Song, Hae Ryong

doi:10.1007/s00264-010-0982-z

Cited by 1 publication

(1 citation statement)

References 2 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…They made direct measurements on the electronic images without calibration for the change in distance between the tibia and the film before and after removal of the ring fixator. This error has been acknowledged by the authors ( Song and Shyam 2010 ).…”

Section: Discussionmentioning

confidence: 99%

Subsidence of callotasis zone in distraction osteogenesis after external fixator removal, measured by RSA

Gunderson¹,

Steen²,

Horn³

et al. 2010

Acta Orthopaedica

View full text Add to dashboard Cite

Background and purposeIn clinical practice, achieved lengthening of a callotasis zone should be maintained after the external fixator has been removed. The common understanding has been that the regenerated bone may subside. To investigate this, we used high-resolution radiostereometric analysis (RSA) with accurate measurement of the lengthening zone.Patients and methodsWe assessed the longitudinal subsidence of a callotasis zone after removal of the external fixator in distraction osteogenesis in 16 patients who underwent 17 segmental lengthening operations on the tibia (n = 9) or femur (n = 8). Median lengthening was 32 (6–80) mm. RSA was performed at the end of the consolidation period before the external fixation device was removed, and this was later repeated at a median time of 11 (4–32) weeks after frame removal.ResultsA minimal median longitudinal change of 0.01 (–0.28 to 0.60) mm across the lengthening zone occurred in uncomplicated cases.InterpretationOur results indicate that no subsidence of clinical interest occurs after external frame removal.

show abstract

Section: Discussionmentioning

confidence: 99%