• 동의생리병리학회지
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• 제36권4호
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• pp.138-142
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• 2022

This study aimed to evaluate the effectiveness of Korean rehabilitation treatement for patients with post-TKR. The medical records of inpatients undergoing Korean rehabilitation treatment after TKR from 2016.01.01. to 2021.12.31. during the admission, were analyzed retrospectively. The effect of treatment was evaluated by using a numeric rating scale(NRS) and range of motion(ROM) of knee. Statistical analysis was done using the IBM SPSS statistics 26 program. If the period of hospitalization was within 7 days or change of NRS and ROM was not recorded properly, the case was excluded. All inpatients received acupuncture treatment, Electro-acupuncture. Soyeom pharmaco-acupuncture were used at a high rate. Blood letting cupping therapy, dry cupping therapy, Interferential Current Therapy(ICT) continuous passive motion(CPM), cryotherapy were used at a high rate. A significant improvement was noted when comparing the NRS and knee ROM results at the time of admission and discharge. Korean medical rehabilitation can be effectively used for patients who have undergone TKR, to relieve pain and enable returning to daily activities. It is expected to be helpful in future studies of post-TKR in Korean Medicine. Also It can be used for medical treatment of post-TKR in Korean Medicine Hospital and clinic. However, further research with a high level of evidence is necessary to support this finding.

• 한국표면공학회:학술대회논문집
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• 한국표면공학회 2016년도 추계학술대회 논문집
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• pp.117-117
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• 2016

Total ankle replacement (TAR) is a visible option in the surgical treatment of degenerative or inflammatory diseases of ankle joint. it is attributed to the current TAR which has improvements in surgical technique, uncemented implant fixation and minimally constrained articulation. In the clinical result, they can show promised surgical result when compared to earlier attempts in TAR. However, TAR is still not as successful as total knee replacement (TKR) or total hip replacement (THR), it needs to be note that there are limitations in concerning of long term performance of TAR, the high failure rate still associated with wear of the PE (polyethylene) component that has related with their material property and surface roughness. The aim of this study was to introduce the tribology characteristics of total ankle joint prosthesis with one of TDR model which was fabricated to try multi-axis wear test as a region of motion in ankle joint. The wear specimen of TDR was prepared with Ti-6Al-4V alloy and UHMWPE (ultra-high molecular weight polyethylene) for tibia-talus and bearing component, respectively. A wear test was carried out using a Force 5 (AMTI, Massachusetts, US) wear simulator which can be allowed to move in three axis to flexion-extension ($+3^{\circ}{\sim}-6^{\circ}$), internal-external axial rotation (${\pm}5^{\circ}$), as well as sinusoidal compressive load (1.6 kN, R=10). All tests were performed following standard ISO 14243, wear rate was calculated with weight loss of UHMWPE bearing while the specimen has tested at certain cycles. As based on the preliminary results, wear rate of UHMWPE bearing was $7.9{\times}10^{-6}mg/cycles$ ($R^2=0.86$), calculated loss weight until $10^7cycles$ was 79 mg, respectively.

• 대한의용생체공학회:의공학회지
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• 제27권6호
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• pp.392-401
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• 2006

Image Guided Surgery (IGS) system which has variously tried in medical engineering fields is able to give a surgeon objective information of operation process like decision making and surgical planning. This information is displayed through 3D images which are acquired from image modalities like CT and MRI for pre-operation. The technique of image registration is necessary to construct IGS system. Image registration means that 3D model and the object operated by a surgeon are matched on the common frame. Major techniques of registration in IGS system have been used by recognizing fiducial markers placed on the object. However, this method has been criticized due to additional trauma, its invasive protocol inserting fiducial markers in patient's bone and generating noise data when 2D slice images are acquired by image modality because many markers are made of metal. Therefore, this paper developed shape-based registration technique to improve the limitation of fiducial marker based IGS system. Iterative Closest Points (ICP) algorithm was used to match corresponding points and quaternion based rotation and translation transformation using closed form solution applied to find the optimized cost function of transformation. we assumed that this algorithm were used in Total Knee replacement (TKR) operation. Accordingly, we have developed region-based 3D registration technique based on anatomical landmarks and this registration algorithm was evaluated in a femur model. It was found that region-based algorithm can improve the accuracy in 3D registration.

• 국제물리치료학회지
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• 제5권2호
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• pp.743-751
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• 2014

This study aims to identify the effect of home physical therapy on patients who left the hospital after total knee arthroplasty, compared to the Daily living group, when it was applied to them, under the guidance of physical therapists. As research subjects, 20 patients that were scheduled to leave the hospital after unilateral total knee arthroplasty, were chosen, and they were randomly divided into a home physical therapy group(10 patients) and an Daily living group(10 patients) in order to conduct an experiment. During the 4-week research, home physical therapy was offered for 40 mins once for 5 days a week, and muscular strength, gait components were measured. For muscular strength, quadriceps muscle strength, hamstring muscle strength were measured, and as gait components, endurance, speed, step time, single-limb support were analysed. For this experiment, pre- and post-measurement were performed, and collected data were analyzed using SPSS ver. 18.0 statistical program. From the analysis of data, the following study results were obtained. Home physical therapy group and Daily living group both showed significant improvements in quadriceps muscle strength, hamstring muscle strength, and quadriceps muscle strength, hamstring muscle strength of home physical therapy group more significantly improved than Daily living group's. In relation to gait components, gait endurance, gait speed, step time significantly improved in both of home physical therapy group and Daily living group, whereas home physical therapy group only showed significant improvements in single-limp support. According to the comparison between two groups, gait speed, single-limp support and step time improved more significantly in the home physical therapy group than in the Daily living group. In conclusion, positive results were revealed in both home physical therapy group and Daily living group, with regard to muscular recovery of lower limbs of patients discharged from the hospital after total knee arthroplasty and walking, but considering the comparison results between two groups, it seems that applying home physical therapy is more effective than maintaining a daily life.

• The Korean Journal of Pain
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• 제19권2호
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• pp.187-191
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• 2006

Background: Patient-controlled epidural analgesia (PCEA), using a local anesthetic-opioid mixture, has been effectively applied after total knee replacement (TKR) surgery, which is associated with intense postoperative pain that requires postoperative analgesia for both rehabilitation and the pain itself. However, adverse opioid-related effects, such as nausea, vomiting and pruritus, are commonly encountered. It was our hypothesis that the adverse opioid-related effects could be reduced by the addition of naloxone, an opioid antagonist, to a mixture of fentanyl-ropivacaine PCEA. Methods: In 120 patients undergoing elective TKR surgery, epidural or combined spinal-epidural (CSE) anesthesia was performed and PCEA applied. In the control group (n = 65), 0.16% ropivacaine and $3{\mu}g/ml$ fentanyl ($2.4{\mu}g/ml$ for those older than 65 yrs) were administered. In the naloxone group (n = 55), naloxone ($2{\mu}g/ml$) was coadministered with the above regimen. The incidence and severity of postoperative nausea and vomiting, and the frequency of pruritus, the visual analog score (VAS) and the PCEA volume used were assessed 6 and 24 hrs after surgery. Results: The incidence of nausea and vomiting during the early postoperative period, and those of pruritus during the late postoperative period were significantly lower in the naloxone group. The VAS pain scores, the PCEA volume used and amount of rescue IV meperidine were similar in the two groups. Conclusions: A small dose of naloxone mixed with an opioid significantly reduces the incidence and severity of adverse opioid-related effects in PCEA, without reducing the analgesic effect.

• 대한정형외과스포츠의학회지
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• 제11권1호
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• pp.51-56
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• 2012

목적: 슬관절 전치환술 후 비교적 흔하게 시행되는 레져스포츠 활동 중 하나인 골프와 슬관절 치환물의 이완현상을 방사선학적으로 분석 하였으며 골프 활동의 패턴에 따른 임상증상을 분석하여 슬관절 전치환술 후 골프 활동에서 권장될 수 있는 지침 (guideline)을 제시하고자 하였다. 대상 및 방법: 2005년부터 2008년까지 본원에서 슬관절 전치환술을 시행 받고 3년 이상 추시 가능하였던 80명의 환자를 대상으로 하였다. 이중 골프 활동을 하는 40명의 환자와 레져스포츠 활동을 시행하지 않는 40명의 환자를 각각 실험군과 대조군으로 정하였으며 연구의 객관성을 위하여 BMI (body mass index)가 $25{\sim}30kg/m^2$이며, UCLA activity-level rating System score가 5~8점 범위인 환자로 연구 대상을 제한 하였다. American Knee Society Roentgenographic Evaluation and Scoring System을 이용하여 대퇴치환물 주위 7곳, 및 경골 치환물 주위 7곳, 슬개골 치환물 주위 5곳의 방사선 투과선의 두께를 측정하여 이를 합산하여 비교 하였다. 실험군의 경우 외래 추시시 설문조사와 전화를 통하여 1. 수술 후 골프활동의 복귀까지의 기간 2. 골프활동의 빈도 3. 경기중 스파이크화의 착용 및 카트(cart)의 이용유무에 따른 임상증상 즉 통증정도를 VAS (visual analogue scale)척도를 이용하여 분석 하였으며 핸디캡과 비거리의 변화 또한 조사하였다. 결과: 실험군에서의 방사선 점수는 합계 평균 0.8 이었으며 대조군에서는 합계 평균 0.6으로 실험군에서 높았으나 통계적 의의는 없었다(P=0.22). 골프 활동의 패턴에 관련 하여 3개월이내 조기 복귀한 경우와(p=0.01) 우측 보다는 좌측 슬관절 전치환술 환자군(p<0.01)에서 유의미한 VAS score 증가가 나타났다. 결론: 슬관절 전치환술 후 골프 활동과 방사선학적 치환물의 이완현상은 연관성을 찾을 수 없으며 슬관절 전치환술 후 3개월 이내 조기 복귀한 경우와 우측 보다는 좌측에서 통증 증가현상을 보여 환자에게 주의를 환기시킬 필요가 있다.