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- Title
Comparison of joint line position changes after primary bilateral total knee arthroplasty performed using the navigation-assisted measured gap resection or gap balancing techniques.
- Authors
Lee, Han; Lee, Jae; Jung, Ho; Song, Kwang; Yang, Jae; Park, Chi
- 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.
- Subjects
TOTAL knee replacement; KNEE surgery; SURGICAL excision; RADIOGRAPHY; PROSTHETICS
- Publication
Knee Surgery, Sports Traumatology, Arthroscopy, 2011, Vol 19, Issue 12, p2027
- ISSN
0942-2056
- Publication type
Article
- DOI
10.1007/s00167-011-1468-2