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Table 1 Demographic patient data (n = 42)a

From: Insall proximal realignment with/without tibial tubercle osteotomy for recurrent patellar instability yields acceptable medium- to long-term results but risk of osteoarthritis progression is considerable

Female gender 72.3
Right knee treated 44.7
Bilateral instability 40.5
BMI (kg/m2) at surgery, mean (SD; range) 25.2 (4.7; 17–39)
Duration (years) of instability at surgery, mean (SD; range) 7.7 (7.0; 1–28)
  1. aValues are presented as (%) unless noted otherwise