Mylène Jansen

One-year follow-up after KJD treatment with the KneeReviver 175 9 Table 2 : Complications after knee joint distraction treatment with the KneeReviver During distraction period Pin tract infections - Oral antibiotics - Wound cleaning + oral antibiotics - Hospital admission + intravenous antibiotics 28 (72) 26 (67) 1 (3) 1 (3) Pain/discomfort - Sudden joint pain/discomfort - Sustaining periarticular pain - Hospital admission 12 (26) 1 (3) 11 (28) 2 (5) Frame complications - Frame repositioned - Deviated distraction distance - Loosened pins 4 (10) 1 (3) 2 (5) 1 (3) Thrombosis - Hospital admission 1 (3) 1 (3) Within 1 year after distraction surgery Limited knee flexion 1 (3) Sustained periarticular pain with hydrops - Hospital admission 2 (5) 1 (2) Pin tract discomfort 1 (3) Antibiotic treatment 1 (3) Defect in tibia cortex 1 (3) N (%) is given. Table 3 : One-year changes upon treatment with the KneeReviver compared with those of the Dynamic Monotubes KneeReviver Dynamic Monotubes Difference Change P- value Change P- value P- value WOMAC pain 27.8 (18.9 to 36.6) <0.001 28.1 (21.9 to 34.2) <0.001 0.051 WOMAC stiffness 27.2 (18.1 to 36.4) <0.001 19.4 (10.7 to 28.1) <0.001 0.249 WOMAC function 27.4 (19.8 to 35.1) <0.001 26.4 (20.9 to 31.9) <0.001 0.119 WOMAC total 27.5 (19.7 to 35.3) <0.001 26.2 (20.6 to 31.7) <0.001 0.094 VAS pain -3.1 (-3.9 to -2.3) <0.001 -3.0 (-4.0 to -2.0) <0.001 0.225 SF-36 PCS 9.6 (6.3 to 13.0) <0.001 8.0 (5.3 to 10.7) <0.001 0.911 SF-36 MCS 0.3 (-2.1 to 2.7) 0.778 -1.1 (-3.8 to 1.7) 0.438 0.754 JSW minimum 0.4 (0.1 to 0.6) 0.013 0.6 (0.3 to 0.8) <0.001 0.749 JSW MAC 0.6 (0.1 to 1.0) 0.015 0.8 (0.4 to 1.2) <0.001 0.929 JSW LAC 0.3 (0.0 to 0.7) 0.042 0.1 (-0.3 to 0.6) 0.607 0.516 JSW mean 0.5 (0.2 to 0.7) 0.003 0.4 (0.2 to 0.7) 0.004 0.806 Mean change and 95% confidence interval are given. P- values for the 1-year change are given for both groups, calculated with paired t -tests. The final column shows p- values of the comparison of 1-year changes between the 2 groups, corrected for baseline values using linear regression. Bold p- values indicate statistical significance ( p< 0.05). JSW: joint space width; LAC: least affected compartment; MAC: most affected compartment; MCS: mental component scale; PCS: physical component scale; SF-36: Short-form 36; VAS: Visual Analogue Scale; WOMAC: Western Ontario and McMaster Universities Osteoarthritis Index.