• Journal of the Semiconductor & Display Technology
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• v.23 no.3
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• pp.46-51
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• 2024

In modern society, the incidence of various joint diseases such as degenerative arthritis is steadily increasing with the increase of the elderly population. For the effective treatment of these diseases, the demand for CPM medical devices that increase the range of motion of the joint is increasing, and if a patient is unable to perform exercise on his or her own, it plays a role in helping joint recovery through repetitive and continuous manual exercise to prevent joint stiffness, promote blood circulation, and improve tissue flexibility to shorten the recovery period after joint surgery to efficiently proceed with the rehabilitation process. Due to the uncertainty of the angle measurement method currently in use, it is difficult to accurately evaluate the patient's exercise amount required to improve the range of motion, which can negatively affect the reliability of CPM medical devices and the patient's willingness to rehabilitate. Therefore, a new technology using encoders and angle sensors is needed to overcome the problems arising from the method measured using only the existing Potentiometer.

• Proceedings of the Korean Society of Precision Engineering Conference
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• 2011.06a
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• pp.1383-1384
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• 2011

• Journal of the Korean Data and Information Science Society
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• v.28 no.6
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• pp.1383-1402
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• 2017

This study aims to investigate the effects of aroma inhalation on pain, anxiety, and heart rate variability of elderly women with total knee arthroplasty (TKA) during continuous passive motion (CPM) exercise. Equivalent control group pretest-posttest design was used. Participants were randomized to intervention group (n=26) or control group (n=27). Participants inhaled aroma or distilled water for 5 minutes before CPM exercise and for 40 minutes during CPM exercise on 3 consecutive days. Pain NRS, number of painkiller used, anxiety NRS, blood pressure, and heart rate variability (HRV) were measured before and after intervention. Pain NRS, anxiety NRS, blood pressure in experimental group were significantly lower than those of control group. All indices of HRV were significantly different between the two groups. Based on these results, it can be concluded that aroma inhalation was effective in decreasing pain and anxiety and changing HRV among elderly women with TKA during CPM exercise.

• Journal of Haehwa Medicine
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• v.25 no.1
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• pp.15-26
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• 2016

Objectives : The aim of this study was to report the cases of knee injury that are treated with both CPM and Korean medicine. Methods : We treated 3 patients who had knee joint pain and gait disturbance by knee injuries with Korean medicine and CPM treatment. We evaluated the outcomes by checking NRS, ROM, Lysholm knee score, walking state and other symptoms. Results : The NRS, ROM, Lysholm knee score, and other symptoms of 3 patients were improved before they. These results show possibilities of simultaneous treatment of Korean medicine and CPM. But there is a limit that the number of cases is not sufficient, and there was no long-term follow-up after discharge. Conclusions : Simultaneous treatment of Korean medicine and CPM has an effect on knee joint rehabilitation. Further studies are needed to prove the effectiveness of Korean medicine combined with CPM.

• Journal of Korean Academy of Nursing
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• v.45 no.6
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• pp.823-833
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• 2015

Purpose: The purpose of the study was to investigate the effects of the Thera-Band exercise program following total knee arthroplasty. Methods: The research design for this study was a nonequivalent control group non-synchronized design. Participants were 30 patients for the experimental group and 30 patients for the control group. The experimental group participated in the Thera-Band exercise program in addition to conventional CPM (continuous passive motion) exercise. The control group received conventional CPM exercise only. Outcome measures were pain, knee flexion range of motion, CRP, and psychological parameters (self-efficacy and fear of falling). Data were analyzed using ${\chi}^2$-test, Fisher's exact test, t-test, and repeated measure ANOVA with SPSS/PC version 21.0. Results: There were significant improvement in self-efficacy, and decreases in pain, and fear of falling in the experimental group compared to the control group. However, no significant differences were found between the two groups for CRP and knee flexion ROM. Conclusion: The Thera-Band exercise program gave an additional benefit over the conventional CPM exercise for patients following total knee arthroplasty, and is recommended for use as an effective nursing intervention for patients after total knee arthroplasty.

• Journal of the Korean Society of Manufacturing Process Engineers
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• v.13 no.2
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• pp.1-7
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• 2014

Recent experimental observations support the hypothesis that mechanical stimuli play a role in regulating the specialized molecular expression of articular cartilage in vitro and in vivo. Other studies have demonstrated that the continuous passive motion(CPM)bioreactor for whole joints can provide a platform for possible future in vitro studies and applications, including possible interactions of bio-mechanical and biochemical signals. In this study, we have developed acustom-made bioreactor capable of bending and stretching with circular type motion, and a biomimetic knee joint model, using a 3D printer. This system could be used to investigate the effects of rehabilitative joint motion of dynamic culture.

• Journal of Korean Clinical Nursing Research
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• v.24 no.3
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• pp.283-292
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• 2018

Purpose: This study was conducted to evaluate the effects of early knee joint exercise education program on pain, knee ROM, and satisfaction among patients with a total knee replacement arthroplasty. Methods: An experimental study with non-equivalent groups was conducted using 32 patients for an experimental group and 32 patients for a control group. The experimental group received knee joint exercise education including systemic continuous passive motion (CPM) exercise and knee exercise. The control group received conventional CPM exercise. Pain, flexion and flexion contracture range of motion, and patient satisfaction were evaluated by $x^2$ test, Fisher's exact test, t-test, and repeated measures ANOVA using the SPSS 23.0 Windows program. Results: There were a significant improvement in patients' knee flexion and satisfaction in the experimental group compared to the control group. There was no significant difference in pain and flexion contracture between the two groups. Conclusion: The findings suggest that the proposed education program is efficient and effective when providing nursing care after a total knee replacement arthroplasty.

• Journal of the Korean Orthopaedic Association
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• v.54 no.5
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• pp.411-417
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• 2019

Purpose: To compare the clinical outcomes of single injection adductor canal block (SACB), continuous adductor canal block (CACB), and the concomitant use of transdermal buprenorphine after total knee arthroplasty (TKA). Materials and Methods: A total of 125 patients who underwent TKA were divided into three groups and the clinical results were retrospecitively compared. Group I was comprised of patients with pain controlled by SACB (n=41). Group II consisted of patients with pain controlled by both SACB and transdermal buprenorphine (10 ㎍/h) (n=44). Group III contained patients with pain controlled by CACB (n=40). The visual analogue scale (VAS) was used as the pain control indicator and the patients were measured on a VAS for resting on the bed (VAS-Rest) at 12 hours, 24 hours, and 48 hours after surgery. The VAS while doing continuous passive motion (VAS-CPM) on the first and second postoperative day was also measured. In addition, the total amount of medications used (Butopahn, Tridol, and Ketorac) for the intravenous patient controlled analgesia (PCA) was counted for 48 hours after surgery. As the indicator of the functional recovery outcome, the incidence of nausea and vomiting was observed for 48 hours after surgery. The maximum knee joint flexion range and maximum walking distance on the first and second postoperative day, and the total length of stay at the hospital were compared. Results: The VAS-Rest was similar in the three groups at 12 hours after surgery, but at 24 hours and 48 hours after surgery, group II and III a lower VAS-CPM and total amount of medications used for PCA than group I (p<0.05). The three groups showed a low incidence of nausea and vomiting, maximum knee joint flexion range, and similar walking distance and total length of stay at the hospital. Conclusion: The combination of SACB and transdermal buprenorphine has great pain control effect initially. On the other hand, it is not associated with catheter complications and it is convenient to use and safety toward the renal function. Therefore, the concomitant use of SACB and transdermal buprenorphine can be an effective pain control method after TKA.

• Journal of Korean Biological Nursing Science
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• v.16 no.4
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• pp.318-325
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• 2014

Purpose: The purpose of this study was to investigate the effects of preoperative patient controlled analgesia (PCA) education on total knee replacement arthroplasty (TKRA) patients' PCA usage, level of pain, the frequency of pro re nata (prn) administrations, number of ambulations/day and continuous passive motion (CPM) angle after TKRA. Methods: This research used the non-equivalent control group pre-test and post-test design. Forty-five TKRA patients at a hospital in Seoul, Korea were included for in the study. For the experimental group, a 20-minute education session was provided a day before surgery. Data were analyzed using Windows SPSS Statistics 21.0 program. Results: Knowledge was higher in the experimental group than in the control group (p<.001). Incidence of nausea was lower in the experimental group (p=.01). No significant differences were found in post-operative pain scores, the frequency of prn analgesics administrations, dizziness, number of ambulations/day and CPM angle. Conclusion: This study showed that pre-operative PCA education could be an effective nursing intervention for increasing patient knowledge on PCA and nausea reduction after TKRA.

• PNF and Movement
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• v.18 no.3
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• pp.435-444
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• 2020

Purpose: This study aimed to compare the elector spine muscle tone using the irradiation of the proprioceptive neuromuscular facilitation (PNF) arm pattern according to angular motion. Methods: Thirty subjects participated in this study. Elector spine muscle tone was measured using a Myotonpro device while in the sitting position according to the angular motion (70°, 100°, 130°) of the PNF arm pattern using a D1 flexion pattern. Each angular motion of the PNF arm pattern was performed with a continuous passive motion (CPM). The change in elector spine muscle tone was statistically evaluated using a repeated one-way ANOVA test. Post-hoc analysis was performed using the Bonferroni method. Results: The results revealed a significant change in elector spine muscle tone when performing the PNF arm pattern using D1 flexion pattern. Specifically, the elector spine muscle tone had significantly increased at 100° and 130° motion in the PNF arm pattern when compared to the initial muscle tone (p < 0.05). No significant muscle tone changes were noted for any of the angular motions of the PNF upper arm pattern (p > 0.05). Conclusion: The results of this study indicate a positive increase in elector spine muscle tone with irradiation of the PNF upper arm pattern exercise with 100° or 130° angular motion. The minimum angle at which the effect of the irradiation of the PNF arm pattern could be seen was 100°.