Parameter | 3D group | 2D group | p-Value |
---|---|---|---|
Age | 51.0± 16.4 | 50.3± 15.2 | 0.82 |
Gender | 12f : 6m | 11f : 7m | 0.79 |
Fracture AO/OTA | 9x B3, 2x C1, 1x C2, 6x C3 | 9x B3, 2x C1, 1x C2, 6x C3 | 1.00 |
ASA | 1.44± 0.51 | 1.67± 0.49 | 0.27 |
Operation time (min) | 127.9± 45.9 | 116.3± 45.7 | 0.28 |
Follow - up (months) | 20.9± 10.7 | 55.5± 34.7 | P < 0.001 |
Lysholm | 67.4± 26.8 | 62.0± 21.4 | 0.39 |
KOOS overall | 72.6± 23.5 | 65.8± 21.6 | 0.31 |
Symptoms | 69.8± 26.6 | 69.8± 25.8 | 0.94 |
Pain | 77.2± 22.6 | 71.8± 23.0 | 0.44 |
ADL | 81.1± 19.5 | 78.4± 23.7 | 0.70 |
Sport/Rec | 54.7± 35.0 | 26.7± 31.6 | 0.014* |
QOL | 58.0± 31.6 | 38.2± 26.1 | 0.059 |
Intraoperative revision rate | 33.3% re-positioning of the screws and/or re-reduction | Not registered | - |
Postoperative revision rate | 27.8% revision (n=5): - wound revision - SSI, spacer, unicondylar TEP - varus osteotomy due to valgus alignment - renewed reposition - early material removal | 27.8% revision (n=5): - 1x screw intraarticular, material removal - 2x loss of reposition/ renewed reposition - bicondylar KTEP - SSI/ unicondylar KTEP | 1.00 |
Postoperative revisions due to intraarticular material position or joint step of ≥ 2mm | 11.1% (n=2): - varus osteotomy due to valgus malalignment - 1x loss of reposition/ renewed reposition | 22.2% (n=4): - 1x screw intraarticular, material removal - 2x loss of reposition/ renewed reposition - 1x loss of reposition/ bicondylar KTEP | 0.58 |
Material removal (months) | 1x arthrolysis and material removal after 19 months | 10x arthrolysis and material removal after 16.9± 2.6 months | - |
Special details without revision | - | 2xPostoperative recognized joint step > 2mm 1xpostoperative recognized intraarticular screw 1xpostoperative recognized too long screw | - |