Prediction of range of motion 2 years after mobile-bearing total knee arthroplasty: PCL-retaining versus PCL-sacrificing

Ishii, Yoshinori; Noguchi, Hideo; Takeda, Mitsuhiro; Sato, Junko; Toyabe, Shin-ichi

doi:10.1007/s00167-011-1395-2

Cited by 31 publications

(26 citation statements)

References 31 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…A previous study demonstrated that the ROM 24 months after TKA could be predicted from the ROM after 6 months [17] and the ROM collected at 6 months was sufficient for an analysis.…”

Section: Discussionmentioning

confidence: 99%

Prediction of post-operative range of motion using intra-operative soft tissue balance in total knee arthroplasty with navigation

Hasegawa

Takagita

Sudo

2015

Computer Aided Surgery

View full text Add to dashboard Cite

This study evaluated the influence of intra-operative soft tissue balance on post-operative range of motion in patients undergoing posterior-stabilized total knee arthroplasty with navigation. After implantation of all components in 31 consecutive patients, the joint component gap was measured manually with the knee at 0 , 90 , and 120 as guided by a navigation system. We designated soft tissue balance as the absolute difference between varus stress and valgus stress (medio-lateral laxity). Changes in medio-lateral laxity were calculated from 120 to 90 , 120 to 0 , and 90 to 0 . Correlations among post-operative flexion angles and pre-operative flexion angles, intra-operative flexion angle after implantation, soft tissue balance, and the changes were analyzed. The mean preand post-operative knee flexion angles were 114 ± 20 and 127 ± 9 , respectively. The mean intraoperative flexion angle was 137 ± 6. The post-operative flexion angle was positively correlated with the pre-operative flexion angle and intra-operative flexion angle after implantation. The change in soft tissue balance between 120 and 90 showed a positive correlation with the postoperative flexion angle. In conclusion, Assessment of intra-operative soft tissue balance could predict post-operative flexion angle. ARTICLE HISTORY

show abstract

“…A previous study demonstrated that the ROM 24 months after TKA could be predicted from the ROM after 6 months [17] and the ROM collected at 6 months was sufficient for an analysis.…”

Section: Discussionmentioning

confidence: 99%

Prediction of post-operative range of motion using intra-operative soft tissue balance in total knee arthroplasty with navigation

Hasegawa

Takagita

Sudo

2015

Computer Aided Surgery

View full text Add to dashboard Cite

show abstract

“…Third, the interval between preoperative and postoperative knee flexion measurements varied between 6 and 114 months owing to study design, and this may have affected our results. However, we showed that with the current prosthetic design, knee ROM values after 24 months can be predicted statistically from the ROM values at 3 months [7]. Additionally, the average change in maximum knee flexion from 6 months to 3 years postoperatively was reported to be only 2.8° [20].…”

Section: Discussionmentioning

confidence: 99%

“…The TKAs being evaluated were performed at a mean of 23 months after the index TKA (range, 6–114 months). One surgeon (YI) performed all the TKAs using a standardized technique, including the necessary soft tissue release for proper balance; the surgical technique and rehabilitation protocol are described in detail in a previous report [7]. In all knees, the femoral components were fixed without cement and the tibial components were fixed with cement.…”

Section: Methodsmentioning

confidence: 99%

Anteroposterior Translation Does Not Correlate With Knee Flexion After Total Knee Arthroplasty

Ishii¹,

Noguchi²,

Takeda³

et al. 2013

Clin Orthop Relat Res

Self Cite

View full text Add to dashboard Cite

BackgroundStiffness after a TKA can cause patient dissatisfaction and diminished function, therefore it is important to characterize predictors of ROM after TKA. Studies of AP translation in conscious individuals disagree whether AP translation affects maximum knee flexion angle after implantation of a highly congruent sphere and trough geometry PCL-substituting prosthesis in a TKA.Questions/purposesWe investigated whether AP translation correlated with maximum knee flexion angle (1) in patients who were awake, and (2) who were under anesthesia (to minimize the effects of voluntary muscle contraction) in a TKA with implantation of a PCL-substituting mobile-bearing prosthesis.MethodsAP translation was examined under both conditions in 34 primary TKAs. Measurements under anesthesia were performed when the patients were having anesthesia for a contralateral TKA. Awake measurements were made within 4 days of that anesthetic session in patients who had no residual sedative effects. The average postoperative interval for the index TKA flexion measurements was 23 months (range, 6–114 months). AP translation was evaluated at 75° flexion using an arthrometer.ResultsThere was no correlation between postoperative maximum knee flexion and AP translation at 75° during consciousness. There was no correlation between postoperative maximum knee flexion and AP translation under anesthesia.ConclusionAP translation at 75° flexion did not correlate with postoperative maximum knee flexion in either awake or anesthetized patients during a TKA with implantation of a posterior cruciate-substituting prosthesis.Level of EvidenceLevel II, therapeutic study. See the Instructions for Authors for a complete description of levels of evidence.

show abstract

“…Second, this study neither evaluated the clinical significance nor compared the other anatomical landmarks of malrotation of the tibial component relative to the TEA in both implant designs. However, no significant differences in the clinical results [44] of knee arthroplasties using both implant designs were found in author's previous studies using the same procedure performed by the same surgeon (Y.I.). Third, it is possible that maximization of tibial surface coverage might not have been undertaken because priority was always given to correct tibial rotational positioning rather than the coverage.…”

Section: Discussionmentioning

confidence: 84%

Rotational alignment of tibial components in mobile-bearing TKA: posterior substituted vs. PCL retaining

Ishii¹,

Noguchi²,

Sato³

et al. 2015

Arch Orthop Trauma Surg

Self Cite

View full text Add to dashboard Cite

show abstract

Prediction of range of motion 2 years after mobile-bearing total knee arthroplasty: PCL-retaining versus PCL-sacrificing

Abstract: This study showed the effects of retention of the PCL and the degree of its functional recovery on postoperative ROM for the two prostheses.

Cited by 31 publications

References 31 publications

Prediction of post-operative range of motion using intra-operative soft tissue balance in total knee arthroplasty with navigation

Prediction of post-operative range of motion using intra-operative soft tissue balance in total knee arthroplasty with navigation

Anteroposterior Translation Does Not Correlate With Knee Flexion After Total Knee Arthroplasty

Rotational alignment of tibial components in mobile-bearing TKA: posterior substituted vs. PCL retaining

Contact Info

Product

Resources

About