Abstract
Purpose: This study aimed to compare the clinical and radiological results of navigation-assisted TKAs performed using the measured gap resection or the gap balancing technique in thirty patients who underwent bilateral primary TKAs. Methods: Sixty cases of navigation-assisted TKAs [30 TKAs performed using the measured gap resection technique (Group A) and 30 TKAs performed using the gap balancing technique (Group B)] were analyzed prospectively with minimum follow-up of 2 years. The joint line positions were measured using preoperative and postoperative weight-bearing anteroposterior and lateral radiographs. Clinical results were evaluated using knee scores and functional scores. Results: No significant differences in knee scores or functional scores were observed. Polyethylene thickness and flexion/extension gaps were significantly larger in Group B (P < 0.05). The meaningful proximal shift of the joint line was shown in Group B (P < 0.05). Conclusion: The navigation-assisted TKA with measured gap resection technique could be a useful technique with regard to restoration of the joint line. Level of evidence: II.
Original language | English |
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Pages (from-to) | 2027-2032 |
Number of pages | 6 |
Journal | Knee Surgery, Sports Traumatology, Arthroscopy |
Volume | 19 |
Issue number | 12 |
DOIs | |
State | Published - Dec 2011 |
Keywords
- Joint line position
- Measured gap resection technique
- Navigation
- Total knee arthroplasty