Comparison of joint line position changes after primary bilateral total knee arthroplasty performed using the navigation-assisted measured gap resection or gap balancing techniques

Han Jun Lee, Jae Sung Lee, Ho Joong Jung, Kwang Sup Song, Jae Jun Yang, Chi Woo Park

Research output: Contribution to journalArticlepeer-review

45 Scopus citations

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 languageEnglish
Pages (from-to)2027-2032
Number of pages6
JournalKnee Surgery, Sports Traumatology, Arthroscopy
Volume19
Issue number12
DOIs
StatePublished - Dec 2011

Keywords

  • Joint line position
  • Measured gap resection technique
  • Navigation
  • Total knee arthroplasty

Fingerprint

Dive into the research topics of 'Comparison of joint line position changes after primary bilateral total knee arthroplasty performed using the navigation-assisted measured gap resection or gap balancing techniques'. Together they form a unique fingerprint.

Cite this