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

Author(s):  
Silvia J. Mrotzek ◽  
Shahir Ahmadi ◽  
Alexander von Glinski ◽  
Alexis Brinkemper ◽  
Mirko Aach ◽  
...  

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.

2016 ◽  
Vol 2016 ◽  
pp. 1-6 ◽  
Author(s):  
Tomokazu Yoshioka ◽  
Hisashi Sugaya ◽  
Shigeki Kubota ◽  
Mio Onishi ◽  
Akihiro Kanamori ◽  
...  

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.


Author(s):  
Zhenrui Zhao ◽  
Xiaozhou Zhang ◽  
Hao Peng ◽  
Wei Li ◽  
Hengzhong Liu ◽  
...  

AbstractThis study aimed to evaluate the analgesic effect of magnesium sulfate combined with a levobupivacaine periarticular cocktail in the early postoperative period after total knee arthroplasty (TKA). A total of 60 patients who underwent primary unilateral TKA in our department from March 2018 to May 2019 were prospectively selected and randomly divided into the trial group (30 patients with 20 mL of magnesium sulfate 250 mg + levobupivacaine 50 mg + triamcinolone 25 mg + 0.9% normal saline) and the control group (30 patients with 20 mL of levobupivacaine 50 mg + triamcinolone 25 mg + 0.9% normal saline). Visual analog scale (VAS) scores at 6, 12, 24, 48, and 72 hours postoperatively during rest; VAS scores at 12, 24, 48, and 72 hours postoperatively during motion; the time required to reach 30 degrees straight leg elevation and 60 degrees active knee flexion; and the analgesia pump dosage at 6, 12, 24, and 48 hours postoperatively were recorded. Magnesium sulfate combined with levobupivacaine injection around the knee joint can significantly prolong the time of postoperative analgesia, significantly reduce the use of postoperative analgesics, and effectively alleviate early postoperative pain after TKA.


2021 ◽  
Author(s):  
Sergi Gil-Gonzalez ◽  
Ricardo Andrés Barja Rodriguez ◽  
Antoni Lopez Pujol ◽  
Hussein Berjaoui ◽  
Jose Enrique Fernandez Bengoa ◽  
...  

Abstract Background. This study aimed to assess whether use of continuous passive motion (CPM) can improve range of motion in patients after total knee arthroplasty (TKA). Moreover, the relationship between the use of CPM with the surgical wound aspect (SWA) and pain management after TKA was analysed.Methods. We randomized 210 patients, 102 patients in the CPM group, who received a standard rehabilitation protocol together with CPM application; and 108 patients in the no-CPM group, without CPM. Variables as knee motion (flexion, extension, range of motion) and pain was measured before surgery, on the 1s, 2nd and 3rd postoperative day, and in the 2nd, 6th, 12th and 24th postoperative weeks following TKA. The SWA was determined by the “surgical wound aspect score” (SWAS) in the next 48 hours after surgery. This scale analyses swelling, erythema, haematoma, blood drainage and blisters. Results. There was an improvement in the knee motion over the course of follow-up in both groups, without significant difference in flexion parameter. We found no significant differences in the total score of SWA, except for haematoma, with less severity in the CPM group. Furthermore, we found no differences in the others SWAS parameters and pain. Conclusions. The application of CPM does not provide benefit to our patients undergoing TKA in terms of either improved flexion mobility or decreased pain. No relationship was found between the use of CPM and the global score of SWA following a TKA, except for a decrease in haematoma appearance.


2012 ◽  
Vol 22 (3-4) ◽  
pp. 389-394 ◽  
Author(s):  
Lan-Hui Chen ◽  
Chung-Hwan Chen ◽  
Sung-Yen Lin ◽  
Song-Hsiung Chien ◽  
Jiing Yuan Su ◽  
...  

2015 ◽  
Vol 2015 ◽  
pp. 1-4
Author(s):  
Harun Resit Gungor ◽  
Esat Kiter ◽  
Semih Akkaya ◽  
Nusret Ok ◽  
Cagdas Yorukoglu

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.


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