Influence of total knee arthroplasty approaches on component positioning
Makaleler > Tam Makale · 2018
Yazarlar: Melekper Elcil KAYA BİÇER, Murat Celal SÖZBİLEN, Semih AYDOĞDU, Hakki Sur
Cukurova Medical Journal, SCI Expanded İndekslerine Giren Dergi, Uluslararası, 2018, cilt 43, ss 343-349
DOI: 10.17826/cumj.341797
Özet
Purpose: The aim of this study was to evaluate the influence of subvastus and medial parapatellar total knee arthroplasty approaches on component positioning and to explore the possible negative effects of potentially more restrictive approaches especially in highly deformed knees.Materials and Methods: 88 knees of 84 patients (46 knees operated with medial parapatellar approach (group 1), and 46 knees operated with subvastus approach (group 2)) who had undergone total knee arthroplasty. The patients were also regrouped according to their preoperative mechanical axis deviations. Postoperative femoral and tibial component positioning on frontal and sagittal planes were evaluated.Results: Frontal femoral (α) and tibial (β) component angles as well as sagittal femoral and tibial component angles were not significantly different between two groups (mean values of α of groups 1&2: 96.79±2.86° and 96.81±3.22°, respectively, of β 89.07°± 3.45° and 89.97°± 3.00° respectively, of sagittal femoral angle 4.85° ± 3.84° and 3.31° ± 3.58°, respectively, of sagittal tibial angle 5.10° ± 3.88° and 4.08 °± 3.18°, respectively). Postoperatively, posterior tibial slope was significantly decreased in both groups. Conclusion: None of the total knee arthroplasty approaches tested in this study found to exert a significant effect on component positioning even in highly deformed knees. The components can be placed properly utilizing both approaches.