1.Muscle Strength and Functional Capacity after Arthroscopic ACL Reconstruction using Patellar Tendon Autograft.
Soon Chang BONG ; Sang Cheol SEONG ; Myung Chul LEE ; Young Wan MOON ; Tae Gyun KIM ; Young Chun PARK
The Journal of the Korean Orthopaedic Association 1997;32(7):1497-1505
Traditionally, evaluation after ACL reconstruction has been focused on physical characteristics and measures of knee stability. Recently, however, reliance on such criteria has been refuted based on the lack of a strong relationship between these measures and both the patient s perception of knee function and return to sports activity. In present study, preoperative and postoperative physical examinations, isokinetic dynamometer, arthrometer test and functional tests were performed on 17 patients with chronic anterior cruciate ligament tears treated by arthroscopic reconstruction using autogenous bone-patellar tendon-bone graft with at least 1 year of follow-up. Muscle power, joint stability and functional recovery were checked for functional evaluation by specific methods. Lysholm score rating scale and functional tests (single leg hop test, vertical jump test, timed single jump test) were performed preoperatively and 6, 12 months postoperatively. Pivot-shift test, Lachman test, anterior drawer test, thigh circumference index and Cybex II+ isokinetic dynamometer test were done preoperatively and at 3, 6, 12 months postoperatively. KT-2000 arthrometer test was done at last follow-up. Lysholm score has showed increasing tendency at 6, 12 months postoperatively (p < 0.01). In Cybex study, deficit percentage of peak torque and total work of the quadriceps and hamstrings was same or slightly decreased at 3, 6 months, but have decreased at 1 year follow-up (p < 0.01). Functional tests and physical examinations have also showed improving tendency at 12 months (p < 0.01). Arthrometer test revealed no significant laxity of the knee joint at last follow-up. In conclusion, muscle strengh and functional capacity in ACL reconstructed knee showed significant improvement at postoperative one year compared with preoperative status. It was considered that arthroscopic reconstruction using autogenous bone-patellar tendon-bone graft is one of the useful method for chronic anterior cruciate ligament injury.
Anterior Cruciate Ligament
;
Autografts*
;
Bone-Patellar Tendon-Bone Grafts
;
Follow-Up Studies
;
Humans
;
Humulus
;
Joints
;
Knee
;
Knee Joint
;
Leg
;
Muscle Strength*
;
Patellar Ligament*
;
Physical Examination
;
Sports
;
Thigh
;
Torque
2.Remodeling and Restraining Lung Tissue Damage Through the Regulation of Respiratory Immune Responses
Young Jin PYUNG ; Da-Jeong PARK ; Cheol Gyun KIM ; Cheol-Heui YUN
Tissue Engineering and Regenerative Medicine 2023;20(3):329-339
Tissue damage caused by various stimuli under certain conditions, such as biological and environmental cues, can actively induce systemic and/or local immune responses. Therefore, understanding the immunological perspective would be critical to not only regulating homeostasis of organs and tissues but also to restrict and remodel their damage.Lungs serve as one of the key immunological organs, and thus, in the present article, we focus on the innate and adaptive immune systems involved in remodeling and engineering lung tissue. Innate immune cells are known to react immediately to damage. Macrophages, one of the most widely studied types of innate immune cells, are known to be involved in tissue damage and remodeling, while type 2 innate lymphoid cells (ILC2s) have recently been revealed as an important cell type responsible for tissue remodeling. On the other hand, adaptive immune cells are also involved in damage control. In particular, resident memory T cells in the lung prevent prolonged disease that causes tissue damage. In this review, we first outlined the structure of the respiratory system with biological and environmental cues and the innate/adaptive immune responses in the lung. It is our hope that understanding an immunological perspective for tissue remodeling and damage control in the lung will be beneficial for stakeholders in this area.
3.Analysis of Tumor Size between Imaging of Preoperative Ultrasound, MRI and Pathologic Measurements in Early Breast Carcinoma
Eun Hyeok KIM ; Chan Gyun PARK ; Eun Hye CHOI ; Ye Jeong KIM ; Mi Jin KIM ; Kyu Dam HAN ; Young Sam PARK ; Cheol Seung KIM ; Kyun Hui NO ; Eun Ae YU ; Gyeong Gyun NA
Journal of Breast Disease 2020;8(1):19-24
Purpose:
Preoperative tumor size is associated with clinical stage, treatment plan and even survival rate of patient. We investigated the accuracy of tumor size estimation between magnetic resonance imaging (MRI) and ultrasonography (US) findings, comparing these with pathologic tumor size in the diagnosis of early breast carcinoma.
Methods:
Between 2011 and 2016, 136 patients with early breast cancer were analyzed and their tumor size on US and MRI findings were compared with their pathologic tumor size retrospectively. The background parenchymal enhancement of MRI was categorized as minimal, mild, moderate, and extreme. The patients who underwent neoadjuvant chemotherapy, had positive resection margins, underwent excisional biopsy for cancer diagnosis, and had non-mass lesions on MRI scans, were excluded.
Results:
In all, 83.1% of the cases showed concordance between MRI findings and pathologic tumor size within 0.5cm. MRI overestimated the findings by 10.3% and underestimated them by 6.6%; 78.7% showed concordance between US findings and pathologic tumor size within 0.5cm. US overestimated the findings by 5.9% and underestimated them by 15.4%. The tumor size on MRI (r=0.87) showed a stronger correlation to the pathologic tumor size than that on US (r=0.64) in early breast cancer patients. US had a tendency to underestimate the tumor size. The degree of breast parenchyma did not affect the accuracy of the measurement of preoperative tumor size.
Conclusion
MRI is relatively more accurate than US for assessing preoperative tumor size in breast cancer patients. US tends to underestimate tumor size.
4.Two Concurrent Chromosomal Aberrations Involving Three-way t(3;21;8)(p21;q22;q22) and Two-way t(2;11)(q31;p15) Translocations in a Case of de novo Acute Myeloid Leukemia.
Gyun Cheol PARK ; Eun Hae CHO ; Sung Ho KANG ; Sook Jin JANG ; Dae Soo MOON ; Geon PARK
Laboratory Medicine Online 2016;6(4):246-249
One of the most frequent structural chromosomal anomaly is t(8;21)(q22;q22) that occurs in approximately 5-15% of all acute myeloid leukemia (AML). However, t(3;21)(p21;q22) and t(2;11)(q31;p15) translocations are rarely reported in AML. Here, we report a unique case of AML with two translocations, t(3;21;8)(p21;q22;q22) and t(2;11)(q31;p15). Using multiplex reverse transcription polymerase chain reaction, we identified a RUNX1-RUNX1T1 fusion gene. Following a second relapse, the patient did not respond to therapy and died 55 months following the first diagnosis. We believe that this is the first case describing concurrent chromosomal aberrations involving three-way t(3;21;8) and two-way t(2;11) translocations in de novo acute myeloid leukemia.
Chromosome Aberrations*
;
Diagnosis
;
Humans
;
Leukemia, Myeloid, Acute*
;
Polymerase Chain Reaction
;
Recurrence
;
Reverse Transcription
5.Arthroscopic Treatment of Tibia Intercondylar Eminence Comminuted Fracture Used Number 5-nonabsobable Suture Material.
Je Gyun CHON ; Ho Hyeong PARK ; Chol SONG ; Jae Cheol PARK ; Doo Hoon SUN ; Myung Sang MOON
Journal of the Korean Knee Society 2004;16(2):175-180
PURPOSE: To evaluate effect of modified arthroscopic pull-out suture technique which used number 5-nonabsorbable suture material for tibia intercondylar eminence comminuted fractures. MATERIALS AND METHODS: There were 21 cases of tibia intercondylar emimence fracture which arthroscopic treated at our hospital between 1999 and 2004. However the study population only included 12 cases in which a number 5-nonabsorbable suture material (Ethibond No. 5) was used for tibia intercondylar eminence comminuted fractures and minimum 1-year follow-up has gone. The average follow-up period was 18.5 months (range, 12 to 42 months). Lachman test and KT-2000 athrometer test were evaluated at the pre-and post-operation. Clinical results of all patients were evaluated with the Meyers and Mckeever 's criteria. RESULTS: In all 12 cases, the normal range of motion and sports activities were recovered at the final follow-up. When tested for anterior instability with KT-2000 arthrometer, there were no different between normal knee and operated knee. Clinical results by Meyers and Mckeever's criteria were excellent in 10 patients and good in 2 patients. CONCLUSION: We obtained early mobilization and stable fixation in modified arthroscopic pullout suture technique for tibia intercondylar eminence comminuted fractures. Patients can early return to his job. This technique seems to be one of the effective operative techniques for treatment of tibia intercondylar eminence comminuted fractures.
Arthroscopy
;
Early Ambulation
;
Follow-Up Studies
;
Fractures, Comminuted*
;
Humans
;
Knee
;
Reference Values
;
Sports
;
Suture Techniques
;
Sutures*
;
Tibia*
6.Use of Alternative Therapies by Rehabilitation Outpatients with the Musculoskeletal Pain.
Sang Il PARK ; Soo A KIM ; Dong Won PARK ; Cheol Ho SON ; Eun CHOI ; Yang Gyun LEE
Journal of the Korean Academy of Rehabilitation Medicine 2000;24(6):1191-1195
OBJECTIVE: The purpose of this study is to document the prevalence and patterns of use of alternative therapies and effectiveness in a rehabilitation medicine outpatient practice. METHOD: This study was performed that a random sample of 200 patients of rehabilitation outpatient were given a questionnaire addressing their use of alternative therapies. RESULTS: One or more alternative therapies had been used by 51.3% of subjects for their presenting problem. The most common therapies were acupuncture, oriental medicine, chiropractic and massage. Musculoskeletal pain syndrome involving the low back and shoulder were the most common problems of use of alternative therapies. Of the patients who used alternative treatments, 40.2% reported some degree of efficacy. CONCLUSION: A significant proportion of rehabilitation outpatients use alternative therapies and frequently perceived a benefit from them. Incorporating alternative therapies into physiatric practice is a desirable future direction for the speciality.
Acupuncture
;
Chiropractic
;
Complementary Therapies*
;
Humans
;
Massage
;
Medicine, East Asian Traditional
;
Musculoskeletal Pain*
;
Outpatients*
;
Prevalence
;
Surveys and Questionnaires
;
Rehabilitation*
;
Shoulder
7.Significance of Amplitude and Area Ratio of Compound Muscle Action Potential in Diagnosis of Diabetic Neuropathy.
Dong Won PARK ; Ki Seok NAM ; Sang Cheol KIM ; Sang Il PARK ; Eun CHOI ; Yang Gyun LEE
Journal of the Korean Academy of Rehabilitation Medicine 2001;25(4):615-620
OBJECTIVE: The purpose of this study is to find out whether amplitude ratio and area ratio have correlation with nerve conduction velocity in the diabetes mellitus patients. METHOD: Median and deep peroneal motor nerve conduction study was performed in thirty-five normal control group and sixty diabetes mellitus patients group. The motor conduction velocity, amplitude ratio, and area ratio of the compound muscle action potential (CMAP) were measured. The experimental subjects were divided into 6 subgroups (in median nerve: M1, M2, M3, in peroneal nerve: P1, P2, P3) according to the median value of conduction velocity of each nerve; group M1 (n=35) and P1 (n=30): normal control group, group M2 (n=25) and P2 (n=30): below the median value of motor nerve conduction velocity in diabetes mellitus patients, group M3 (n=23) and P3 (n=29): above the median value of motor nerve conduction velocity in diabetes mellitus patients. RESULTS: There was no significant difference of area ratio between the each subgroups in both median and peroneal nerves. There was a significant difference of amplitude ratio between the M1 and M2 subgroups. There was a significant difference of amplitude ratio between the P1 and P2, P3 subgroups. CONCLUSION: According to above results, the decrease of amplitude of compound muscle action potential along with the decrease of conduction velocity seems to be helpful in the electrophysiologic diagnosis of diabetic neuropathy.
Action Potentials*
;
Diabetes Mellitus
;
Diabetic Neuropathies*
;
Diagnosis*
;
Humans
;
Median Nerve
;
Neural Conduction
;
Peroneal Nerve
8.Characteristics of the Patients with Pain in Rehabilitation Medicine Outpatient Practice.
Yang Gyun LEE ; Ki Seok NAM ; Dong Won PARK ; Cheol Ho SON ; Sang Il PARK ; Eun CHOI
Journal of the Korean Academy of Rehabilitation Medicine 2000;24(6):1168-1173
OBJECTIVE: The purposes of this study are to find out the characteristics of patients with pain in outpatient practice of rehabilitation medicine and to provide basic data for outpatient management. METHOD: We surveyed a hundred one outpatient practices with questionnaire including the distribution of diagnosis, pain site, disease related with pain, pain treatment method, etc. RESULTS: 1) Distribution of diagnosis was traumatic brain injury (TBI) 10.5%, stroke 14.8%, spinal cord injury (SCI) 10.8%, musculoskeletal disorder (MSD) 55.8% and others 8.1% in training hospital, and TBI 6.7%, stroke 10.6%, SCI 14.0%, MSD 58.7% and others 10.0% in non-training general hospital, and TBI 2.6%, stroke 4.9%, SCI 2.9%, MSD 78.3% and others 11.3% in private clinic. 2) The most common site of pain was low back area. 3) The most common disease related with pain was myofascial pain syndrome. 4) Trigger point injection and physical therapy were performed for pain treatment in most of outpatient practice, whereas local injection and nerve block were less used. CONCLUSION: We believe that this study's results will provide helpful basic-data for management of outpatient with pain.
Brain Injuries
;
Diagnosis
;
Hospitals, General
;
Humans
;
Myofascial Pain Syndromes
;
Nerve Block
;
Outpatients*
;
Surveys and Questionnaires
;
Rehabilitation*
;
Spinal Cord Injuries
;
Stroke
;
Trigger Points
9.Intranasal Immunization WithNanoparticles Containing an Orientia tsutsugamushi Protein Vaccine Candidate and a Polysorbitol Transporter Adjuvant E
Cheol Gyun KIM ; Won Kyong KIM ; Narae KIM ; Young Jin PYUNG ; Da-Jeong PARK ; Jeong-Cheol LEE ; Chong-Su CHO ; Hyuk CHU ; Cheol-Heui YUN
Immune Network 2023;23(6):e47-
Scrub typhus, a mite-borne infectious disease, is caused by Orientia tsutsugamushi. Despite many attempts to develop a protective strategy, an effective preventive vaccine has not been developed. The identification of appropriate Ags that cover diverse antigenic strains and provide long-lasting immunity is a fundamental challenge in the development of a scrub typhus vaccine. We investigated whether this limitation could be overcome by harnessing the nanoparticle-forming polysorbitol transporter (PST) for an O. tsutsugamushi vaccine strategy.Two target proteins, 56-kDa type-specific Ag (TSA56) and surface cell Ag A (ScaA) were used as vaccine candidates. PST formed stable nano-size complexes with TSA56 (TSA56-PST) and ScaA (ScaA-PST); neither exhibited cytotoxicity. The formation of Ag-specific IgG2a, IgG2b, and IgA in mice was enhanced by intranasal vaccination with TSA56-PST or ScaA-PST. The vaccines containing PST induced Ag-specific proliferation of CD8 + and CD4 +T cells. Furthermore, the vaccines containing PST improved the mouse survival against O.tsutsugamushi infection. Collectively, the present study indicated that PST could enhance both Ag-specific humoral immunity and T cell response, which are essential to effectively confer protective immunity against O. tsutsugamushi infection. These findings suggest that PST has potential for use in an intranasal vaccination strategy.
10.Establishment of androgen-dependent cells from Shionogi carcinoma 115(SC115).
Bup Wan KIM ; Tae Gyun KWON ; Cheol Hee KIM ; Yong Bok PARK
Korean Journal of Urology 1992;33(2):193-199
Hormone-dependent cancers including prostatic cancer respond to endocrine therapy in initial phase, but gradually loss responsiveness and eventually show autonomous growth despite of continuation or the treatment At present it is difficult to predict on an individual basis who will respond to hormonal therapy and for how long. If unresponsive patient could be identified. they could be treated by alternative forms of therapy (e.g., chemotherapy). Thus there is a great need to predict the quality and duration of response to endocrine manipulation. Recently androgen receptor assay and other methods to predict the responsiveness of prostatic cancer to androgen ablation therapy have been developed. We studied androgen receptor, RNA polymerase activity and chromosome analysis on the androgen-responsive Shionogi Carcinoma 115 (SC115} cells and established a pure androgen-dependent cancer cell line from this tumor.
Cell Line
;
DNA-Directed RNA Polymerases
;
Humans
;
Prostatic Neoplasms
;
Receptors, Androgen