Which thoracic curves are at the greater risk for distal adding-on: comparison between typical and atypical Lenke 1A curves

ConclusionAtypical Lenke 1A curve had its own radiographic characteristics. It was more likely to develop AO when LIV was proximal to LSTV, which indicated different fusion levels should be considered in these two subtypes of Lenke 1A. We recommended LSTV as LIV in atypical Lenke 1A cases, while one level proximal to LSTV might be available in typical Lenke 1A curve.Level of evidence3
Source: European Spine Journal - Category: Orthopaedics Source Type: research