Cruciate-sacrificing total knee arthroplasty and insert design: A radiologic study of sagittal laxity

Abstract

IV - retrospective study.

Similar outcomes between ultracongruent and posterior-stabilized insert in total knee arthroplasty: A propensity score-matched analysis

“…Many studies have compared between TKAs with an UC insert and other design inserts. 9,[11][12][13][14]31,32 In terms of clinical outcomes, most of studies demonstrated similar results of UC design TKA with PS or CR, it is consistent with our study results. Multiple factors include geometry, implant size, type of insert, PCL integrity, and gap balancing are associated with AP instability in TKAs.…”

No difference in range of motion between ultracongruent and posterior stabilized design in total knee arthroplasty: a randomized controlled trial

“…This is to our knowledge the first study comparing intraoperative stability and ROM between fixed-bearing UC and PS TKA. The increased antero-posterior translation in the UC design is consistent with the findings of other studies in mobile-bearing TKA [1,10]. However, this seems to have no negative influence on PRO after short-term follow-up.…”

Total knee arthroplasty using ultra-congruent inserts can provide similar stability and function compared with cruciate-retaining total knee arthroplasty

“…Sagittal stability is an important consideration following TKA [5], but comparing stability in patients who underwent different types of TKA is difficult because it is influenced by several factors, including implant design geometry and surgical technique. The measurements of sagittal stability following UC TKA are conflicting in the literature [3, 4, 12, 13, 15, 16, 21]. Similar to the results of a study by Lützner et al [12], our results showed that AP stability following UC TKA at 90° of knee flexion was similar to that following CR TKA (7.5 mm in UC vs. 6.8 mm in CR knees).…”

“…Similar to the results of a study by Lützner et al [12], our results showed that AP stability following UC TKA at 90° of knee flexion was similar to that following CR TKA (7.5 mm in UC vs. 6.8 mm in CR knees). However, other studies have reported that UC TKA produced knees with more AP laxity than that following PS TKA [3, 17, 21].…”