Clinical efficacy of an arthroscopic surgery in open wedge high tibial osteotomy

Discussion: Most of orthopaedic surgeons expect that technical error of surgical procedures could be diminished by increasing the surgical experience.However our result of the over-correction in biplane-OWHTO could not be reduced by surgical volume.The result also means that LC-CUSUM test could be not only checked for learning curve, but also used for the confirmation of the limitation of the conventional surgical technique.Up to date, several studies reported that over-correction in biplane-OWHTO was associated with soft tissue laxity which means planning technique to determine the correction angle using radiography mainly reflects the varus bony deformity without exactly considering the soft tissue laxity.That could be possible reason for the surgical experience could not be corrected the over-correction in our study.Conclusion: Lesson from feedback showed that, as surgical volume of biplane-OWHTO increases, technical competency of most parts of procedures could be achieved.However, especially incidence of over-correction could not be reduced.These findings suggest that additional concerns about affecting factors such as soft tissue laxity leading to unexpected over-correction after biplane-OWHTO might be needed.

Abstract licence: CC BY-NC-ND

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