Table 4 Tegner activity level, lysholm, IKDC, and patellofemoral scores (KPS) preoperatively, 2 and 5 years postoperatively
Test score (Range) | Rigidfix/Intrafix | Rigidfix/BioScrew | BioScrew/Intrafix | BioScrew/BioScrew | P-value |
|---|---|---|---|---|---|
Tegner preop | 4 (1–6) | 3 (0–6) | 3 (1–4) | 3 (1–7) | 0.024 |
Tegner 2 yrs | 6 (3–9) | 7 (3–10) | 6 (3–9) | 7 (3–9) | 0.954 |
Tegner 5 yrs | 6 (4–8) | 6 (3–10) | 6 (3–8) | 6 (4–9) | 0.866 |
Lysholm preop | 75 (56–100) | 77 (36–92) | 75 (53–89) | 78 (33–95) | 0.686 |
Lysholm 2 yrs | 94.5 (65–100) | 94 (60–100) | 94 (46–100) | 95 (83–100) | 0.628 |
Lysholm 5 yrs | 96 (54–100) | 90 (32–100) | 91 (54–100) | 94 (75–100) | 0.524 |
IKDC preop | 59.7 (46–83) | 47.2 (31–78) | 55.2 (33–76) | 55.1 (29–88) | 0.439 |
IKDC 2 yrs | 91 (59–100) | 91 (63–100) | 91 (71–100) | 90 (70–100) | 0.416 |
IKDC 5 yrs | 88 (34–100) | 86 (30–100) | 86 (43–100) | 91 (79–100) | 0.550 |
KPS preop | 81 (47–95) | 76.5 (44–93) | 79 (38–91) | 79 (42–98) | 0.341 |
KPS 2 yrs | 98 (82–100) | 95 (95–100) | 95 (95–100) | 96 (96–100) | 0.716 |
KPS 5 yrs | 95 (80–100) | 93 (39–100) | 94 (52–100) | 96 (89–100) | 0.553 |