• Journal of the Korean Arthroscopy Society
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• v.16 no.2
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• pp.153-159
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• 2012

Purpose: This study aims at evaluating our results with a 5-year follow up of arthroscopic pull-out suture repair of posterior root tear of the medial meniscus. Materials and Methods: This study enrolled 30 cases who underwent a arthroscopic pull-out suture repair to treat the posterior root tear of the medial meniscus from January 2001 to May 2005 and followed up at least 5 years. The average follow-up period was 76 months (range, 60-90 months). Clinical results by use of the Lysholm knee score and radiographic grade by use of the Kellgren-Lawrence classification were evaluated and second-look arthroscopy was done in all cases. The clinical results were compared with trauma history, obesity, varus deformity and time to operation. Results: At the last follow up, the Lysholm knee score improved from 55 points to 86 points. For the radiological results, 23 cases displayed maintenance or improvement of the medial joint space on the follow up X-ray, but 7 cases displayed decrease of the medial joint space, and 1 case was lately performed total knee replacement due to progressive osteoarthritic change. Conclusion: Arthroscopic pull-out suture repair has a good result at 27 cases (90%) in minimum 5 years follow-up. The clinical improvement was significantly reduced in more severe varus angle.

• Journal of Korean Orthopaedic Sports Medicine
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• v.1 no.1
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• pp.21-25
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• 2002

Purpose: To evaluate the clinical results after anterior cruciate ligament (ACL) reconstruction with hamstring tendon and Ligament Anchor (LA) screw, which is newly designed for fixation of graft into femur. Materials and Methods: Fifty eight patients who were followed up at least more than 2 years after ACL reconstruction with four strands of Hamstring tendon and LA screw were included in this study. The graft was fixed with LA screw at femoral tunnel and with only bioabsorbable interference screw at tibial tunnel. The mean follow-up period was 28 months. The clinical results were evaluated by physical examination and Lysholm knee score. Widening of bony tunnel and anterior laxity difference compared with normal side by instrumented anterior laxity test with Telos(R) (Telos stress device; Austin & Associates, Inc., Polston, US) were evaluated. Results: The Lysholm knee score improved from 60.0 points preoperatively to 94.0 points at last follow up. On the Lachman test, there were mild (+) instability in 16 cases, moderate (++) in 24,severe (+++) in 18 preoperatively. 50 cases were converted to negative and 8 to mild instability at postoperative follow up. On instrumented anterior laxity test with Telos(R), difference between normal and affected knee on 20 lb was 12.9 mm in average preoperatively, and was decreased to 3.1mm at last follow-up. The femoral tunnel was widened from 10.6 mm postoperatively to 12.7 mm (21.1$\%$) at follow up on antero-posterior plane and from 10.7 mm to 12.4 mm (16.5$\%$) on lateral plane. Tibial tunnels was also widened from 9.8mm to 11.8mm (20.7$\%$) on antero-posterior plane and from 9.9mm to 11.7 mm ($18.9\%$) on lateral plane. Complications were: anterior knee crepitus in 17 case, quadriceps muscle atrophy(>3 cm) in 6, penetration of screw over the lateral femoral cortex in 5, saphenous nerve paresthesia in 2.Conclusions: ACL reconstruction with hamstring tendon and LA screw was one of the choice of grafts and fixation devices in restoring knee stability and in improving clinical results with little complications such as excessive widening of bony tunnel and anterior knee pain

• Journal of the Korean Orthopaedic Association
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• v.56 no.1
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• pp.26-33
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• 2021

Purpose: This study evaluated the results of dual plate fixation for periprosthetic femur fracture after total knee arthroplasty (TKA). Materials and Methods: From October 2007 to February 2013, 23 cases of periprosthetic femur fracture after TKA were treated at the author's hospital. There were 13 cases of fixation using a medial and lateral dual plate when the stability of the fracture site could not be achieved by one side fixation with a follow-up of more than one year. The cases included no loosening of the femoral component in fractures that were categorized as Lewis-Rorabeck classification II and supracondylar comminuted fractures and elongation of the fracture line to the lateral epicondyle of the femur or stem in the medullary canal. The mean age was 72 years (65-82 years), and 11 cases were female. Three cases had a stem due to revision. The mean bone marrow density was -3.2 (-1.7 to -4.4), and the mean period from primary TKA to periprosthetic fractures was 28 months (1-108 months). The mean follow-up period was 23 months (12-65 months). The medial fracture site was first exposed via the subvastus approach. Second, the supplementary plate was fixed on the lateral side of the fracture using a minimally invasive plate osteosynthesis technique. The average union time, complications, and Hospital for Special Surgery Knee Score (HSS) at the last follow-up were evaluated. Results: The mean union time was 17.4 weeks (7-40 weeks). Two cases showed delayed bone union and nonunion occurred in one case, in whom bone union was achieved three months later after re-fixation using a dual plate with an autogenous bone graft. The mean varusvalgus angulation was 1.67 degrees (-1.2-4.9 degrees), and the mean anterior-posterior angulation was 2.86 degrees (0-4.9 degrees) at the last follow-up. The mean knee range of motion was 90 degrees, and the HSS score was 85 points (70-95 points) at the last follow-up. Conclusion: Dual plate fixation for periprosthetic femur fractures that had not achieved stability by one side plate fixation after TKA showed a good clinical result that allowed early rehabilitation.

• Korean Journal of Applied Biomechanics
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• v.34 no.1
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• pp.34-44
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• 2024

Objective: This study aimed to investigate how the movements occurring during the follow-through phase after releasing an arrow among elite compound archers, are associated with the arrow impact points on the target. Method: Nine elite archers performed consecutive compound archery shooting under conditions identical to actual competitions using their own bows and equipment. Motion capture system and force platform were utilized to record the changes in joint positions and center of pressure, respectively. Principal component analysis was employed to identify the patterns in which multidimensional joint positions and COP changes were organized with horizontal and vertical coordinates of arrow impact points. Subsequently, correlation analysis quantified the relationship between individual variables and the coordinates of arrow impacts on the target. Results: We found a common organizational pattern in which the two axes of the impact point coordinates were grouped into the first two principal components. The movements of the upper and lower limbs following release exhibited opposite patterns in the anterior-posterior axis, with significant correlations observed between the arrow impact points of the horizontal axis and the left shoulder, right elbow, left hip, and both knees. Additionally, the lateral movements induced by the reaction force upon arrow release showed significant associations with the vertical coordinates of the impact points. Particularly, the correlations between the movements of the left shoulder and elbow, as well as the bilateral hip and right knee, were consistently observed among all participants. Conclusion: These findings implied that the post-release movements could significantly influence the trajectory and impact points of the arrows in compound archery. We suggest that a consistent and controlled movement during the follow-through phase may be more beneficial for optimizing shooting accuracy and precision rather than minimizing movements.

• Journal of Acupuncture Research
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• v.26 no.2
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• pp.125-145
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• 2009

Objectives : To analyze the inclusion criteria of participants, control group interventions, and the results of prior studies of acupuncture for OA. Also to identify aspects of the procedure that are associated with positive outcomes in order to establish ideal acupuncture treatment model. And to assess the methodological quality of the trials with modified Jadad score and FEAS in order to evaluate the quality of prior studies and find out whether or not acupuncture has a positive effect in treating OA. Methods : Articles up to the date of November 2008 were searched via computerized databases of PubMed, Journal of Korean Oriental Medicine, The Journal of Korean Acupuncture & Moxibustion Society and Journal of Oriental Rehabilitation Medicine. Bibliographies of reviewed papers were also searched and reviewed. Only randomized controlled trials (RCTs) and systematic reviews concerning the effects of acupuncture or electroacupuncture (EA) on symptoms of osteoarthritis of the human knee, published in English and Korean were included. The acupuncture treatment methods of the reviewed trials were assessed based on STRICTA. And the methodological quality of the trials was assessed by modified Jadad score and FEAS. Results : Twenty one trials of acupuncture for OA were analyzed. Based on the results of this review the following factors might contribute to optimal results from acupuncture treatment. 1) Usage of $ST_{35}$, $GB_{34$, $EX_{32}$, $ST_{36}$ and $SP_9$ acupuncture points. 2) More than four acupuncture points should be used. 3) More than 15 minutes of needle retention time. 4) Needle length-40mm and diameter-0.30mm 5) Usage of EA 6) more than 10 times treatment 7) Treatment frequency of more than once a week, 8) Treatment duration longer than 6 to 8 weeks. Conclusions : High quality clinical trials of Acupuncture for OA is still in lack. Future investigators must concentrate their attentions on the quality of acupuncture treatment itself used in the trials as well as the methodological quality of trials.

• Journal of the Korean Arthroscopy Society
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• v.8 no.1
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• pp.31-36
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• 2004

Purpose: We reviewed the effectiveness and the result of arthroscopic resection for ganglion cyst of posterior cruciate ligament(PCL) through the posterior trans-septal approach. Material and Method: Seven patients with symptomatic ganglion cyst of the PCL were treated with arthroscopic resection using posterior trans-septal approach. We analyzed advantages of the posterior trans-septal approach and presence of intra articular problem. Knee function was assessed using the lysholm knee scale. Results: The overall result for the 7 knees were very satisfied in all. We found that four of seven patients had intra articular problems, and past history of trauma could be found in 3 cases. The Lysholm knee scale was increased from average 93.3 points preoperatively to average 97.8 points postoperatively. Conclusion: Arthroscopic posterior trans-septal approach shows an effective technique for complete resection of cyst and evaluation of the combined posterior compartment injury.

• Journal of the Korean Arthroscopy Society
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• v.3 no.1
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• pp.9-16
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• 1999

Purpose : We have evaluated the outcome of the operative treatment of PCL rupture using the achilles tendon allograft. Materials and Methods : A retrospective study was completed for 30-PCL reconstruction cases, using the achilles tendon allograft from september 1996 to march 1998. There was an average follow up of 24 months, with range of 12 to 50 months. Results : The active range of motion was improved postoperatively. The Lysholm Knee Score was improved from a mean of 54 points preoperatively to 87 points postoerative 18 months. The "Cybex 340 isometric test" revealed satisfactory results compared with autograft. Conclusions : Use of allograft for recostruction of the PCL is an attractive option because it precludes the harvesting of autogenous tissue in a knee that is already at risk for patellofemoral and tibiofemoral osteoarthrosis.

• Journal of the Korean Arthroscopy Society
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• v.9 no.2
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• pp.143-147
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• 2005

Purpose: In case of anterior cruciate ligament (ACL) reconstruction, graft tendon is generally fixed in tibial tunnel with knee extended. When reconstructing ACL using hamstring tendon, the authors aim to find out the effect of knee joint position during graft fixation on postoperative knee joint stability and range of motion. Materials and Methods: Prospective study was done on patients who have undergone ACL reconstruction using hamstring tendon from May 2002 to January 2003 We used Rigifix system (Mitek Product, Johnson and Johnson, USA) and Intrafix system for fixation. Thirty nine patients received ACL reconstruction during this period. Excluding 2 patients lost in the follow-up, 37 patients were analyzed. The mean follow-up period was 14 months $(13{\sim}25months)$. Knee position was decided alternatively without any bias. Clinical evaluation was based on Lachman test, pivot shift test, Lysholm score, IKDC(international knee documentation committee) assessment and side to side KT-1000 maximal manual arthrometer difference. Results: After the last follow-up, average postoperative Lysholm score was 93.1 poins(65-98points). According to IKDC score, 26 cases were normal, 10 cases were nearly normal, 1 case was abnormal and we had no case of severe abnormality. The mean difference from the normal side was 2.5 mm under maximal manual loading KT-1000 arthrometer. According to postoperative Lachman test, 32 cases were normal,2 cases were grade I and 1 case was grade II. There were 34 cases of normal, 2 cases of grade I and 1 case of grade II. When using maximal manual KT-1000 arthrometer side to side difference, the difference from the normal side while fixing the tibia at 20'knee flexion was 2.3 mm and at full extention the difference was 2.7 mm. The range of motion at postoperative 1 year showed 5 degree flexion contracture in 1 case at 20 degrees knee flexion and 10 degrees of flexion limitation was observed in 2 cases at full extension. Conclusion: When ACL reconstruction using autogenous hamstring tendon, anterior laxity showed no difference in its stability between two groups. Tibial side fixation at full extension may be helpful in preventing flexion contracture due to overconstrained graft tendon.

• Korean Journal of Acupuncture
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• v.31 no.3
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• pp.108-116
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• 2014

Objectives : The purpose of this study is to identify changes of texts by investigating similarities and differences of the third chapter of limb diseases section between Beijiqianjinyaofang(BJQJYF) and Sunzhenrenqianjinfang(SZRQJF). Methods : I reviewed the third chapter of limb diseases section both of BJQJYF and SZRQJF and analysed the changes of texts. Results : 1. Hand, shoulder and low back pains mentioned in the second chapter of glossopathy from SZRQJF were moved to the third chapter of limb diseases in BJQJYF. 2. Inappropriate indications were changed reasonably. 3. Contents related with treatment were revised, by addition or deletion of contents. 4. There were some contents which were worth clinically in SZRQJF. 5. The rule of choosing acupoints for hand, arm, leg, knee and limb disease was selection of local points, and for shoulder and low back disease was selection of distant points. Conclusions : Classification and contents of the third chapter of limb diseases were re-organized systematically through proofreading by medical printing authority. However, some contents deleted from SZRQJF were worth clinically, and more studies are necessary to identify the reason why the indication and selection of acupoints were changed by proofreading.

• Journal of Oriental Neuropsychiatry
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• v.3 no.2
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• pp.97-106
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• 1992

The literature which was written about manual technique of 'Four method of conducting the Qi(氣)'suggest the following results. 1. Four method of conducting the Qi(氣) is a total method based on the basic manual method, lifing and thrusting, twisting and rotating(捻轉), timing the insertion and withdrawal(呼吸) ect. 2) Cheongryongphami method(靑龍擺尾法) come to understanding channels and conducting and Qi(氣), Paekhoyodu method(白虎搖頭法) using a channels understanding and Qi(氣) introducing, Changkuthamhyeol method(蒼龜探穴法) using a channels understanding, Ceokpongyeongweon method(赤鳳迎源法) using a collaterals understanding. 3) Cheongryongphami(靑龍擺尾) and Changkuthamhyeol method(蒼龜探穴法) were used on disease like insufficiency symptom-complex(盧證), Paekhoyodu(白虎搖頭) and Ceokpongyeongweon method(赤鳳迎源法) were used on excessivess symptom-complex(實證) of pathogenic factors selectively. But all of them often used on C.V.A. 4) The Yang Channel's points, under the elbow and knee point, are often used as points which are used in "Four method of conducting the Qi(氣), and the Yin, Ren(任) Du(督) channels are used less than the former. 5) The manual techniques of 'Four method of conducting the Qi(氣)' are often used in clinically. "Four method of conducting the Qi(氣)"has been studies as above, but there weren't a lot of literature which is about total manual technique of acupuncture. So there is a need study about it.