Accuracy of Lower Limb Alignment in Patients with Total Knee Arthroplasty in Fajr Hospital, Tehran, 2008-2013

2014 ◽  
Vol 11 (2) ◽  
pp. 807-813
Author(s):  
M. Shahrezaee ◽  
M. Jabalameli ◽  
A. Noori ◽  
S.R. Sharifzadeh ◽  
M. Setareh ◽  
...  
Keyword(s):  
Total Knee Arthroplasty ◽  
Knee Arthroplasty ◽  
Lower Limb ◽  
Limb Alignment ◽  
Lower Limb Alignment ◽  
Total Knee

scholarly journals Spinal Flexibility Is an Important Factor for Improvement in Spinal and Knee Alignment after Total Knee Arthroplasty: Evaluation Using a Whole Body EOS System

2020 ◽  
Vol 9 (11) ◽  
pp. 3498
Author(s):  
Seong Chan Kim ◽  
Joo Sung Kim ◽  
Han Gyeol Choi ◽  
Tae Woo Kim ◽  
Yong Seuk Lee
Keyword(s):  
Total Knee Arthroplasty ◽  
Knee Joint ◽  
Knee Arthroplasty ◽  
Lower Limb ◽  
Whole Body ◽  
Limb Alignment ◽  
Lower Limb Alignment ◽  
Spinal Flexibility ◽  
Flexion Extension ◽  
Total Knee

The purposes of this study were (1) to evaluate the relationship between lumbosacral flexibility and the effects of total knee arthroplasty (TKA) on whole-body alignment; and (2) to determine the prerequisites of the adjacent joints for successful TKA. A total of 116 patients (156 cases) who had whole-body X-ray and flexion-extension lumbar radiograph available were enrolled. For the sagittal alignment evaluation, hip–knee–ankle (HKA) angle, pelvic tilt (PT), sacral slope (SS), lumbar lordosis (LL), thoracic kyphosis (TK), and C7 plumb line-sacrum distance (SVA) were evaluated on the whole-body radiographs. Lumbar flexibility (LF) was evaluated using the flexion-extension lumbar radiographs, and pelvic flexibility (PF) was evaluated using the pelvic incidence (PI). The disparities in the knee joint between postoperative passive motion and weight-bearing posture were assessed. LF was significantly correlated with ΔLL and ΔSVA (LL: p = 0.039, SVA: p = 0.040; Pearson correlation coefficient (PCC): −0.206 and 0.205, respectively). There were correlations between PF and ΔSS (p < 0.001, PCC: −0.362), and between the disparity and LF (p = 0.005, PCC = −0.275). Linear regression analysis demonstrated that LF was significantly associated with the presence of disparity (p = 0.005, β = −0.205). LF is an important factor for improved spinal and lower limb alignment after TKA. Additionally, reduced LF may result in knee joint disparity between passive extension and standing extension status. Therefore, surgeons should consider spinopelvic alignment, including lower limb alignment preoperatively, to be able to predict possible changes in whole-body alignment following TKA.

scholarly journals One-Stage Femoral Osteotomy and Computer-Assisted Navigation Total Knee Arthroplasty for Osteoarthritis in a Patient with Femoral Subtrochanteric Fracture Malunion

2014 ◽  
Vol 2014 ◽  
pp. 1-4 ◽  
Author(s):  
C. H. Jason Fan
Keyword(s):  
Total Knee Arthroplasty ◽  
Knee Arthroplasty ◽  
Subtrochanteric Fracture ◽  
Computer Assisted ◽  
Limb Alignment ◽  
Lower Limb Alignment ◽  
Assisted Navigation ◽  
Osteoarthritis Of Knee ◽  
Femoral Deformity ◽  
Total Knee

Extra-articular femoral deformity in total knee arthroplasty (TKA) is realigned by either intra-articular correction or extra-articular osteotomy. The more distant the deformity is away from knee joint, the more likely it is corrected by the former method. No report described the use of antegrade cephalomedullary femoral nail to fix the osteotomy followed by computer-assisted navigation TKA. This report described the unusual use of this method to manage a 64-year-old man with femoral subtrochanteric fracture malunion and osteoarthritis of knee. He demonstrated a satisfactory functional outcome and good lower limb alignment.

AB1284-HPR RELIABILITY OF STEP TEST IN SUBJECTS WITH TOTAL KNEE ARTHROPLASTY

2020 ◽  
Vol 79 (Suppl 1) ◽  
pp. 1932.1-1933
Author(s):  
M. Eymir ◽  
E. Yuksel ◽  
B. Unver ◽  
K. Sevik ◽  
V. Karatosun
Keyword(s):  
Total Knee Arthroplasty ◽  
Motor Control ◽  
Lower Extremity ◽  
Knee Arthroplasty ◽  
Lower Limb ◽  
Standing Balance ◽  
Step Test ◽  
Retest Reliability ◽  
Total Knee ◽  
Test Retest Reliability

Background:Patients with TKA show impairments in standing balance up to 1 year after surgery. The impaired standing balance in TKA patients was found to be associated with falls risk and decreased functional level. Assessing of standing balance with objective and reliable assessments tools would therefore be extremely useful for determining accurate exercise program, and risks of falling, especially during the rehabilitative period when ambulation is at its most unsteady (1, 2). The stepping maneuver requires adequate strength and motor control to stabilize the body over the stance limb while the other leg is stepping, therefore the Step Test (ST) provides significant information for dynamic standing balance and lower limb motor control (3). The reliability of ST is reported in patient groups such as stroke, however, there is not any study that investigates the reliability of ST in patients with TKA in the current literature.Objectives:The purposes of this study were to determine the test-retest reliability and the minimal detectable change (MDC) of the ST in patients with TKA.Methods:40 patients with TKA due to knee osteoarthritis, operated by the same surgeon, were included in this study. Patients performed trials for ST twice on the same day. Between the first and second trials, patients waited for an hour on sitting position to prevent fatigue. The ST assesses an individual’s ability to place one foot onto a 7.5-cm-high step and then back down to the floor repeatedly as fast as possible for 15 seconds. The score is the number of steps completed in the 15-second period for each lower extremity. Scores for each lower extremity were recorded separately. Prior to the testing, the ST was demonstrated by the tester and all participants were allowed to a practice trial.Results:The ST showed an excellent test-retest reliability (ICC2,1=0.95) in this study. Standard error of measurement (SEM) and MDC95for ST were 0.37 and 1.02, respectively.Conclusion:This study found that the ST has an excellent test–retest reliability in patients with TKA. It is an effective and reliable tool for measuring dynamic standing balance and participant falls. As a performance-based clinical test, the ST is easy to score, can be applied in a short time as part of the routine medical examination. Therefore, inclusion of ST into a more comprehensive battery of performance-based measures of standing balance and lower limb motor control function in subjects with TKA should be considered.References:[1]Si, H. B., Zeng, Y., Zhong, J., et al. (2017). The effect of primary total knee arthroplasty on the incidence of falls and balance-related functions in patients with osteoarthritis. Scientific reports, 7(1), 1-9.[2]Moutzouri, M., Gleeson, N., Billis, E., et al. (2017). The effect of total knee arthroplasty on patients’ balance and incidence of falls: a systematic review. Knee Surgery, Sports Traumatology, Arthroscopy, 25(11), 3439-3451.[3]Hill, K. D., Bernhardt, J., McGann, A. M., et al. (1996). A new test of dynamic standing balance for stroke patients: reliability, validity and comparison with healthy elderly. Physiotherapy Canada, 48(4), 257-262.Disclosure of Interests:None declared

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