scholarly journals Modifiable and Nonmodifiable Predictive Factors Associated with the Outcomes of Total Knee Arthroplasty

Joints ◽  
2019 ◽  
Vol 07 (01) ◽  
pp. 013-018
Author(s):  
Davide E. Bonasia ◽  
Anna Palazzolo ◽  
Umberto Cottino ◽  
Francesco Saccia ◽  
Claudio Mazzola ◽  
...  
Keyword(s):  
Total Knee Arthroplasty ◽  
Prognostic Factors ◽  
Treatment Option ◽  
Predictive Factors ◽  
Knee Arthroplasty ◽  
Factors Associated ◽  
Modifiable Factors ◽  
Valuable Treatment ◽  
Total Knee ◽  
The Right

AbstractTotal knee arthroplasty (TKA) is a valuable treatment option for advanced osteoarthritis in patients unresponsive to conservative treatments. Despite overall satisfactory results, the rate of unsatisfied patients after TKA remains high, ranging from 5 to 40%. Different modifiable and nonmodifiable prognostic factors associated with TKA outcomes have been described. The correction, whenever possible, of modifiable factors is fundamental in preoperative patients' optimization protocols. Nonmodifiable factors can help in predicting the outcomes and creating the right expectations in the patients undergoing TKA. The goal of this review is to summarize the modifiable and nonmodifiable prognostic factors associated with TKA outcomes.

The Impact of Intraoperative Gap Difference Between Extension and Flexion on Perception of Joint Function After Total Knee Arthroplasty: a Comparative Retrospective Study

2021 ◽  
Author(s):  
Tomohiro Okayoshi ◽  
Yoshinori Okamoto ◽  
Hitoshi Wakama ◽  
Shuhei Otsuki ◽  
Masashi Neo
Keyword(s):  
Total Knee Arthroplasty ◽  
Retrospective Study ◽  
Soft Tissue ◽  
Knee Joint ◽  
Predictive Factors ◽  
Knee Arthroplasty ◽  
Difference Threshold ◽  
Joint Function ◽  
Flexion Gap ◽  
Total Knee

Abstract Background: The argument presupposes that intra-operative soft tissue balance is associated with patient-reported outcome measures after total knee arthroplasty (TKA). Our aim was to assess the association between the extension-to-flexion gap and patients’ reported perception of knee joint function.Methods: This was a retrospective study of 60 cases of primary cruciate-retaining TKAs performed for the treatment of medial-compartment knee osteoarthritis, at a mean follow-up of 2.6 (range, 2.0–5.2) years. Knee perception was evaluated by asking patients whether they considered their knee joint as “natural” (grade I) or “artificial”, with or without restrictions (grades II–V). The following factors were compared between the two groups: age, sex, and the extension-to-flexion gap difference. A multiple logistic regression analysis was used to identify predictive factors of an artificial knee joint perception. A receiver operating characteristic curve analysis was used to identify cut-off values of predictive factors. Result: Compared to a natural knee joint perception (26 knees, 43%), an artificial perception (34 knees, 57%) was associated with a smaller gap difference at the distraction force of 20 lbf (p < .001), 30 lbf (p = .022), and 40 lbf (p = .038), a lower EuroQol 5-Dimension score (p = .029), and self-reported joint health (Knee injury and Osteoarthritis Outcome Score-Joint Replacement [KOOS-JR], p = .032). A gap difference <1.0 mm was a predictive of an artificial perception (odds ratio, 1.63; 95% confidence interval, 1.33–4.54; p < .001). A cut-off gap difference of 0.99 mm at 20 lbf predicted an artificial perception with a sensitivity of 81.5% and a specificity of 87.9%. Post-operative satisfaction (p < .001), KOOS-JR (p < .001), patient’s joint perception (p = .006), pain (p = .015), and EuroQol 5-Dimension (p = .032) differed between the two groups when the gap difference threshold was set to 1.0 mm.Conclusion: Careful balancing of soft tissue during TKA to achieve an extension-to-flexion gap ≥ 1.0 mm can improve patients’ perception of knee joint function and quality of life.

Patient Factors Associated With Prolonged Postoperative Opioid Use After Total Knee Arthroplasty

2018 ◽  
Vol 33 (8) ◽  
pp. 2449-2454 ◽  
Author(s):  
Robert S. Namba ◽  
Anshuman Singh ◽  
Elizabeth W. Paxton ◽  
Maria C.S. Inacio
Keyword(s):  
Total Knee Arthroplasty ◽  
Knee Arthroplasty ◽  
Opioid Use ◽  
Patient Factors ◽  
Factors Associated ◽  
Total Knee

scholarly journals Morphometric Analysis of Superior Articular Surface of Tibia in Dry Cadaveric Bones

2019 ◽  
Vol 15 (4) ◽  
pp. 287-290
Author(s):  
Ruku Pandit ◽  
Nitasha Sharma
Keyword(s):  
Total Knee Arthroplasty ◽  
Knee Arthroplasty ◽  
Tibial Component ◽  
Articular Surface ◽  
Baseline Data ◽  
Lateral Condyle ◽  
Medial Condyle ◽  
Significant Difference ◽  
Total Knee ◽  
The Right

Background: Total knee arthroplasty is the most cost effective and rapidly evolving technique. The success of procedure relies on appropriate sizing of tibial component, for which elaborate information of various dimensions of upper surface of tibia is mandatory. Hence, this study is aiming to generate baseline data on antero-posterior and transverse measurements of medial and lateral condyles and intercondylar area of upper surface of tibia. Methods: The study was conducted in 42 dry human cadaveric tibia with unidentified age and sex, in the Department of Anatomy, College of Medical Sciences and Teaching Hospital, Chitwan. The antero-posterior and transverse measurements of medial and lateral condyles and intercondylar area of tibia were recorded in millimeter (mm) with digital Vernier calipers. The data was analysed using SPSS version 16.0. Results: The antero-posterior and transverse measurements of medial condyle of tibia were 43.00±5.95 mm and 25.21±8.08 mm respectively on the right side and 45.33±5.36 mm and 27.43±8.57 mm respectively on the left side and that of lateral condyle were 37.94±5.64 mm and 25.21±8.71 mm respectively on the right side and 41.03±3.65 mm and 27.06±8.83 mm respectively on the left side. The antero-posterior and transverse measurements of intercondylar area of tibia were 47.49±6.31 mm and 15.71±3.93 mm respectively on the right side and 49.24±6.91 mm and 15.02±3.88 mm respectively on the left side. The variation in the measurements between right and left tibia showed significant difference only for antero-posterior measurement of lateral condyle (p<0.05). Conclusions: The study generates baseline data regarding various anthropometric measurements of upper surface of tibia, which will assist the orthopedic surgeon to create a resected bony surface identical to the tibial component of an implant in unilateral and total knee arthroplasty. Keywords: measurement; morphometric; superior articular surface; tibial condyles.

scholarly journals Robotic Arm-Assisted Total Knee Arthroplasty in the Setting of Combined Extra-articular Deformities of the Femur and Tibia

2020 ◽  
Vol 2020 ◽  
pp. 1-6
Author(s):  
Sharma Cook-Richardson ◽  
Rasesh Desai
Keyword(s):  
Total Knee Arthroplasty ◽  
Surgical Treatment ◽  
Treatment Option ◽  
Knee Arthroplasty ◽  
Mechanical Axis ◽  
Robotic Arm ◽  
Implant Positioning ◽  
Total Knee ◽  
Anatomical Axis ◽  
Bone Deformities

In this case, we will describe a 68-year-old man with combined femoral and tibial bone deformities who underwent robotic arm-assisted total knee arthroplasty (RATKA) to treat his severe osteoarthritis in the setting of extra-articular deformities that altered the native anatomical axis and the kinematics of the deformed extra-articular bony structures which chronically generated a neomechanical axis. The combination of severe osteoarthritis with extra-articular deformities made the RATKA method the best surgical treatment option taking into account altered kinematics of the native joint which conventional jig-based total knee arthroplasty would not have prioritized during bony cuts and implant positioning. The patient underwent successful knee arthroplasty with robotic arm-assisted technology with restoration of the mechanical axis.

Factors Associated with a Second Opioid Prescription Fill in Total Knee Arthroplasty

2020 ◽  
Vol 35 (6) ◽  
pp. S163-S167
Author(s):  
Kelsey L. Wise ◽  
Dylan L. McCreary ◽  
Harsh R. Parikh ◽  
Patrick K. Horst ◽  
Karl M. Koenig ◽  
...  
Keyword(s):  
Total Knee Arthroplasty ◽  
Knee Arthroplasty ◽  
Opioid Prescription ◽  
Factors Associated ◽  
Total Knee

Factors associated with gait speed recovery after total knee arthroplasty: A longitudinal study

2017 ◽  
Vol 46 (5) ◽  
pp. 544-551 ◽  
Author(s):  
Yong-Hao Pua ◽  
Felicia Jie-Ting Seah ◽  
Ross Allan Clark ◽  
Cheryl Lian-Li Poon ◽  
John Wei-Ming Tan ◽  
...  
Keyword(s):  
Total Knee Arthroplasty ◽  
Longitudinal Study ◽  
Knee Arthroplasty ◽  
Gait Speed ◽  
Factors Associated ◽  
Total Knee
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