Fig. 3From: Do the successful revision surgery for humeral nonunion solve all the effects on health‐related quality of life? A retrospective cohort studyMean SF-12 MCS scores according to diagnosis. Abbreviations: KBD, Kashin-Beck disease; COPD, Chronic Obstructive Pulmonary Disease. “Post-op” means that the fracture ends were healed smoothly. The medical condition above the upper dashed line or below the lower dashed line were associated with significantly (p<0.05) better or worse mental health, respectively, compared with pro-op and post-op MCS.Back to article page