scholarly journals Feasibility and efficacy of knee extension training using a single-joint hybrid assistive limb, versus conventional rehabilitation during the early postoperative period after total knee arthroplasty

2021 ◽  
Vol 16 (1) ◽  
pp. 22-28
Author(s):  
Tomokazu Yoshioka ◽  
Shigeki Kubota ◽  
Hisashi Sugaya ◽  
Norihito Arai ◽  
Kojiro Hyodo ◽  
...  
Keyword(s):  
Total Knee Arthroplasty ◽  
Knee Arthroplasty ◽  
Postoperative Period ◽  
Knee Extension ◽  
Early Postoperative Period ◽  
Total Knee ◽  
Hybrid Assistive Limb

scholarly journals Knee-Extension Training with a Single-Joint Hybrid Assistive Limb during the Early Postoperative Period after Total Knee Arthroplasty in a Patient with Osteoarthritis

2016 ◽  
Vol 2016 ◽  
pp. 1-6 ◽  
Author(s):  
Tomokazu Yoshioka ◽  
Hisashi Sugaya ◽  
Shigeki Kubota ◽  
Mio Onishi ◽  
Akihiro Kanamori ◽  
...  
Keyword(s):  
Total Knee Arthroplasty ◽  
Range Of Motion ◽  
Knee Arthroplasty ◽  
Knee Extensor ◽  
Recovery Phase ◽  
Knee Extension ◽  
Early Postoperative Period ◽  
Wearable Robot ◽  
Total Knee ◽  
Hybrid Assistive Limb

The knee range of motion is an important outcome of total knee arthroplasty (TKA). According to previous studies, the knee range of motion temporarily decreases for approximately 1 month after TKA due to postoperative pain and quadriceps dysfunction following surgical invasion into the knee extensor mechanism. We describe our experience with a knee-extension training program based on a single-joint hybrid assistive limb (HAL-SJ, Cyberdyne Inc., Tsukuba, Japan) during the acute recovery phase after TKA. HAL-SJ is a wearable robot suit that facilitates the voluntary control of knee joint motion. A 76-year-old man underwent HAL-SJ-based knee-extension training, which enabled him to perform knee function training during the acute phase after TKA without causing increased pain. Thus, he regained the ability to fully extend his knee postoperatively. HAL-SJ-based knee-extension training can be used as a novel post-TKA rehabilitation modality.

scholarly journals Rehabilitation during early postoperative period following total knee arthroplasty using single-joint hybrid assistive limb as new therapy device: a randomized, controlled clinical pilot study

2021 ◽  
Author(s):  
Silvia J. Mrotzek ◽  
Shahir Ahmadi ◽  
Alexander von Glinski ◽  
Alexis Brinkemper ◽  
Mirko Aach ◽  
...  
Keyword(s):  
Total Knee Arthroplasty ◽  
Range Of Motion ◽  
Knee Arthroplasty ◽  
Postoperative Period ◽  
Early Postoperative Period ◽  
Continuous Passive Motion ◽  
Control Group ◽  
New Therapy ◽  
Total Knee ◽  
Hybrid Assistive Limb

Abstract Introduction The first weeks after total knee arthroplasty (TKA) are crucial for the functional outcome. To improve knee mobility, a continuous passive motion (CPM) motor rail is commonly used during in-hospital rehabilitation. The single-joint hybrid assistive limb (HAL-SJ) is a new therapy device. The aim of the study was to improve patients’ range of motion (ROM), mobility, and satisfaction using the active-assistive support of the HAL-SJ. Materials and methods Between 09/2017 and 10/2020, 34 patients, who underwent TKA and matched the inclusion criteria, were randomized into study (HAL-SJ) and control (CPM) group. Treatment began after drain removal and was carried out until discharge. Primary outcome parameters were raised pre- and postoperatively and included the Oxford knee score (OKS), visual analog scale (VAS), and acquired range of motion. Furthermore complications caused by the device were recorded. Results OKS increased in both groups postoperatively, but only significantly in the HAL-SJ group. Postoperative pain improved in both groups without significant differences. Flexion improvement was significant in both groups between days 3/7 and 8 weeks postoperatively. We did not encounter any complications related to HAL-SJ. Conclusions In conclusion, use of the HAL-SJ during rehabilitation in the early postoperative period after TKA was safe without disadvantages compared to the control group and seems to have advantages in terms of daily life impairment.

scholarly journals Obliteration of Intercondylar Notch Mimicking Flexion-Extension Gap Imbalance in a Cruciate Retaining Total Knee Arthroplasty

2015 ◽  
Vol 2015 ◽  
pp. 1-4
Author(s):  
Harun Resit Gungor ◽  
Esat Kiter ◽  
Semih Akkaya ◽  
Nusret Ok ◽  
Cagdas Yorukoglu
Keyword(s):  
Total Knee Arthroplasty ◽  
Knee Arthroplasty ◽  
Postoperative Period ◽  
Soft Tissues ◽  
Cruciate Ligament ◽  
Early Postoperative Period ◽  
Intercondylar Notch ◽  
Cruciate Retaining ◽  
Flexion Extension ◽  
Total Knee

Following total knee arthroplasty (TKA), the most frequent cause of extension deficit and limitation of range of motion in early postoperative period is related to improper tensioning of soft tissues and failure to balance extension and flexion gaps. If a cruciate retaining (CR) prosthesis is the planned implant, then attention should be given to balancing the posterior cruciate ligament (PCL), and any factor that alters this balance may also cause deterioration of knee balance in postoperative period. Here, we report on an unusual case referred from another hospital because of continuous pain and restriction of knee motion in early postoperative period following CR-designed TKA that was initially thought to be due to flexion-extension imbalance. However, during the revision procedure, extruded cement to the intercondylar notch was found to be both mechanically blocking terminal extension and limiting flexion by possible mechanism of irritation of the synovial nerve endings around the stretched anterior fibers of PCL during flexion. This case was successfully treated by removal of extruded cement from intercondylar notch to decompress PCL, polyethylene exchange, and secondary patellar resurfacing.

scholarly journals C-reactive protein course after classical complication free total knee arthroplasty using navigation

2020 ◽  
Vol 32 (1) ◽  
Author(s):  
Jun Ho Nam ◽  
Myung Rae Cho ◽  
Seo Ho Lee ◽  
Suk-Kyoon Song ◽  
Won-Kee Choi
Keyword(s):  
Total Knee Arthroplasty ◽  
Knee Arthroplasty ◽  
Postoperative Period ◽  
Computer Navigation ◽  
Early Postoperative Period ◽  
C Reactive Protein ◽  
Patient Factors ◽  
Reactive Protein ◽  
Total Knee ◽  
Navigated Tka

Abstract Purpose The purpose is to estimate the degree of normalization of C-reactive protein (CRP) at 2 weeks and 4 weeks after uncomplicated total knee arthroplasty (TKA) using computer navigation. We also wish to determine whether the degree of normalization of CRP at 2 and 4 weeks differs after TKA performed in one knee and after TKA performed sequentially in both knees. We also want to analyze the patient factors that may influence the normalization of CRP. Material and methods We studied 400 knees who underwent primary computer-navigated TKA for treatment of advanced osteoarthritis: the TKAs were all performed by the same surgeon. We retrospectively analyzed CRP levels during the preoperative period, the early postoperative period (5–7 days), the 2-week postoperative period (12–14 days), and the 4-week postoperative period (25–30 days). We have assumed gender, age, body mass index (BMI), staged bilateral TKA, and preoperative CRP as the potential patient factors associated with CRP normalization. Results In unilateral TKA, CRP was normalized in 94 cases (34.3%) and in 219 cases (81.4%) within 2 weeks and 4 weeks after surgery, respectively. In second-knee, staged bilateral TKA, CRP was normalized in 46 cases (35.1%) and in 104 cases (79.4%) within 2 weeks and 4 weeks after surgery, respectively. There were no statistical differences between unilateral TKA and second-knee, staged bilateral TKA during the 2-week postoperative and the 4-week postoperative period. Compared to women, men were 1.99 times less likely to have normalized CRP at 2 weeks after surgery (P = 0.02). Conclusion CRP was less likely to normalize during the 2-week postoperative period in men than it is in women, while there was no difference between men and women in the normalization of CRP during the 4-week postoperative period. There were no statistical differences in the course of CRP levels after unilateral TKA and staged bilateral TKA during the 2-week postoperative and the 4-week postoperative period.

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