scholarly journals Monitoring and Assessment of Rehabilitation Progress on Range of Motion After Total Knee Replacement by Sensor-Based System

Sensors ◽  
2020 ◽  
Vol 20 (6) ◽  
pp. 1703 ◽  
Author(s):  
Yo-Ping Huang ◽  
Yu-Yu Liu ◽  
Wei-Hsiu Hsu ◽  
Li-Ju Lai ◽  
Mel S. Lee
Keyword(s):  
Total Knee Replacement ◽  
Range Of Motion ◽  
Knee Replacement ◽  
Knee Flexion ◽  
Triaxial Accelerometer ◽  
Isokinetic Dynamometer ◽  
Sensor Device ◽  
Knee Rehabilitation ◽  
Total Knee ◽  
Swing Speed

For total knee replacement (TKR) patients, rehabilitation after the surgery is key to regaining mobility. This study proposes a sensor-based system for effectively monitoring rehabilitation progress after TKR. The system comprises a hardware module consisting of the triaxial accelerometer and gyroscope, a microcontroller, and a Bluetooth module, and a software app for monitoring the motion of the knee joint. Three indices, namely the number of swings, the maximum knee flexion angle, and the duration of practice each time, were used as metrics to measure the knee rehabilitation progress. The proposed sensor device has advantages such as usability without spatiotemporal constraints and accuracy in monitoring the rehabilitation progress. The performance of the proposed system was compared with the measured range of motion of the Cybex isokinetic dynamometer (or Cybex) professional rehabilitation equipment, and the results revealed that the average absolute errors of the measured angles were between 1.65° and 3.27° for the TKR subjects, depending on the swing speed. Experimental results verified that the proposed system is effective and comparable with the professional equipment.

Preoperative Low Back Pain Affects Recovery in Knee Flexion Range of Motion Following Total Knee Replacement

2016 ◽  
Vol 28 (1-2) ◽  
pp. 47-55
Author(s):  
Hannah M. Ashworth ◽  
Christian N. Warner ◽  
Saurabh P Mehta ◽  
Franklin D. Shuler ◽  
Ali Oliashirazi
Keyword(s):  
Low Back Pain ◽  
Back Pain ◽  
Total Knee Replacement ◽  
Range Of Motion ◽  
Knee Replacement ◽  
Knee Flexion ◽  
Low Back ◽  
Total Knee

scholarly journals Adductor canal block to manage flexion contracture deformity (FCD) of knee before total knee replacement (TKR) ‐ a case report

2020 ◽  
Vol 12 (1) ◽  
Author(s):  
Jadon Ashok ◽  
Sudarshan Pavan ◽  
Sinha Neelam ◽  
Chakraborty Swastika
Keyword(s):  
Pain Relief ◽  
Total Knee Replacement ◽  
Range Of Motion ◽  
Continuous Infusion ◽  
Knee Replacement ◽  
Flexion Contracture ◽  
Lower Limbs ◽  
Adductor Canal Block ◽  
Adductor Canal ◽  
Total Knee

Abstract Background The fixed contracture deformity (FCD) which is often present in patients awaiting total knee replacement (TKR) affects the surgical outcome. Therefore, it is necessary to reduce the severity of the FCD before the TKR surgery. Physiotherapy, including active stretching and exercise to increase range of motion are commonly practiced techniques. However, due to the presence of pain, patients are often unable to cooperate and perform exercise up-to the desired levels. We used continuous adductor canal block (CACB) in two patients with severe FCD scheduled for TKR surgery to decrease their pain during physiotherapy and to help them in increasing their range of motion to achieve early fitness for surgery. This approach is not documented and published earlier in the medical literature. Case presentation Two female patients aged 58 and 68 years were scheduled for TKR surgery with severe flexion contracture deformity of both limbs (70°–90°). Due to severe contracture deformity surgeon suggested improvement in ROM before surgery. Ultrasound-guided adductor canal block was given, and catheters were inserted in the adductor canal. Continuous infusion of local anesthetic and bolus injection before active stretching was given. Both patients had good pain relief in existing arthritic pain and pain during active stretching. The flexion deformity was reduced in both the patients up to 30°. The technique of adductor can block with continuous infusion also provided excellent postoperative analgesia and helped in early mobilization without affecting the muscle strength of lower limbs. Conclusion In two patients of severe flexion contracture deformity, the continuous adductor canal block helped to reduce the degree of deformity before the total knee replacement surgery. It also provided excellent pain relief in postoperative pain and helped in early postoperative mobilization without muscle weakness.

scholarly journals Knee Flexion and Daily Activities in Patients following Total Knee Replacement: A Comparison with ISO Standard 14243

2015 ◽  
Vol 2015 ◽  
pp. 1-7 ◽  
Author(s):  
Markus A. Wimmer ◽  
William Nechtow ◽  
Thorsten Schwenke ◽  
Kirsten C. Moisio
Keyword(s):  
Total Knee Replacement ◽  
Knee Replacement ◽  
Knee Flexion ◽  
Daily Activities ◽  
Wear Testing ◽  
Significant Difference ◽  
Flexion Extension ◽  
Total Knee ◽  
Stair Walking ◽  
The Many

Walking is only one of many daily activities performed by patients following total knee replacement (TKR). The purpose of this study was to examine the hypotheses (a) that subject activity characteristics are correlated with knee flexion range of motion (ROM) and (b) that there is a significant difference between the subject’s flexion/extension excursion throughout the day and the ISO specified input for knee wear testing. In order to characterize activity, the number of walking and stair stepping cycles, the time spent with dynamic and stationary activities, the number of activity sequences, and the knee flexion/extension excursion of 32 TKR subjects were collected during daily activity. Flexion/extension profiles were compared with the ISO 14243 simulator input profile using a level crossing classification algorithm. Subjects took an average of 3102 (range: 343–5857) walking cycles including 65 (range: 0–319) stair stepping cycles. Active and passive ROMs were positively correlated with stair walking time, stair step counts, and stair walking sequences. Simulated knee motion according to ISO showed significantly fewer level crossings at the flexion angles 20–40° and beyond 50° than those measured with the monitor. This suggests that implant wear testing protocols should contain more cycles and a variety of activities requiring higher knee flexion angles with incorporated resting/transition periods to account for the many activity sequences.

Is discharge knee range of motion a useful and relevant clinical indicator after total knee replacement? Part 1

2011 ◽  
Vol 18 (3) ◽  
pp. 644-651 ◽  
Author(s):  
Justine M. Naylor ◽  
Victoria Ko ◽  
Steve Rougellis ◽  
Nick Green ◽  
Danella Hackett ◽  
...  
Keyword(s):  
Total Knee Replacement ◽  
Range Of Motion ◽  
Knee Replacement ◽  
Clinical Indicator ◽  
Total Knee ◽  
Replacement Part
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