• Journal of the Korean Arthroscopy Society
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• v.16 no.2
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• pp.147-152
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• 2012

Purpose: The purpose of this study was to compare the preoperative magnetic resonance image (MRI) findings with postoperative arthroscopic findings on meniscus injury with anterior cruciate ligament (ACL) rupture. Materials and Methods: We reviewed MRI images and arthroscopic findings of 225 patients treated by ACL reconstruction due to rupture, from February 2001 to November 2010. There were 154 cases of meniscus tear in arthroscopic findings. We examined the sensitivity for detecting meniscal tears varied with the presence of a rupture of the ACL, with the location of the tear within the meniscus, and among configurations of meniscal tears. Results: In the presence of a rupture of the ACL, the sensitivity of MRI was 0.88 for medial meniscal tears and 0.69 for lateral meniscal tears. And sensitivity of MRI was lowest in posterior horn and peripheral portion tears in lateral meniscus injury accompanying ACL rupture, sensitivity was low in anterior horn and flap shape tears in medial meniscus injury accompanying ACL rupture. Conclusion: In Meniscus injury with ACL rupture, a special attention shoulder given to the posterior horn and peripheral portion injury in lateral meniscus during arthroscopic surgery due to difficulty in detecting on MRI.

• Journal of the Korean Arthroscopy Society
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• v.16 no.2
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• pp.121-127
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• 2012

Purpose: To compare coagulation test results of the arthroscopic surgery patients who received thromboprophylaxis with typical two kinds of anticoagulation drugs, we performed coagulation tests before and after surgery with two groups and then compared the results. Materials and Methods: Forty-seven patients who underwent arthroscopic surgery were randomly divided into two groups to rivaroxaban and enoxaparin group, and we performed coagulation tests before and 5 days after arthroscopic surgery to two drugs groups in order to investigate about the difference in clotting capacity. Results: Preoperative coagulation tests did not differ significantly between the two groups. However, coagulation tests after 5 days of the surgery, the level of prothrombin time-international normalized ratio (PT-INR), activated partial thromboplastin time (aPTT) increased, particularly in patients with rivaroxaban compared with enoxaparin (P<0.05). Conclusion: Anticoagulation for arthroscopic surgery with a drug is effective and has safe range in terms of bleeding tendency, but in the rivaroxaban group, there was one patient who showed high bleeding tendency with abnormal range. Therefore it should be careful of using rivaroxaban for thromboprophylaxis.

• Journal of the Korean Arthroscopy Society
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• v.7 no.2
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• pp.147-152
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• 2003

Purpose : The purpose of this study was to evaluate the arthroscopic findings of the transplanted human allogenic meniscus including MRI changes at follow up. Materials and Methods : From Oct. 1999 to Jun. 2002, nine patients underwent arthroscopic evaluation at follow-up. We used nonirradiated cryopreserved meniscus allograft for 6 cases and fresh-frozen for 3 cases. We used bone-plug method for medial meniscus and bone-bridge method for lateral meniscus to fix the transplanted meniscus. The average follow-up time was 13 months. We evaluated the result by lysholm score, MRI and second-look arthroscopic finding. Results : The second-look arthroscopy after allogenic meniscal transplantation revealed that grafts were well incorporated with surrounding capsular tissue. But one case showed wear on the post horn and the other case which was operated at other local clinic showed tear of the anterior hem due to non-anatomic placement of bone bridge. There was improvement of average Lysholm score form 64 to 87. Conclusion : Second-look arthroscopy revealed excellent incorporation of the allograft with firm attachment and early clinical results are satisfactory. But further studies are necessary to assess whether meniscal transplantation can prevent progressive degenerative changes.

• Journal of the Korean Arthroscopy Society
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• v.4 no.1
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• pp.32-37
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• 2000

Purpose : We performed routinely arthroscopy to diagnose and treat intra-articular soft tissue pathology and tibial condylar fractures. The purpose of this study was to evaluate clinical value of arthroscopy in the tibial condylar fractures. Materials and Methods : The 31 tibial condylar fractures was examed by routine arthroscopy, 9 treated by conservative method and 22 treated by surgery at least follow up of 12 months. The authors analysed to the cause, classification, soft tissue injuries such as ligaments and menisci, treatment and results. Results : The most common type was Schatzker classification type I in 15 cases$(18\%)$ and intra-articular lesions and associated ligament injury were in 21 cases$(67\%)$. Most common lesion was meniscal tear in 16 cases and most common type of meniscal lesions was peripheral detachment in 7 cases$(44\%)$. Schatzker I, II fracture patterns were associated with the highest frequency of soft tissue injuries, especially medial collateral ligament and meniscal injuries. Conclusion : Arthroscopic examination is useful method to evaluate the intra-articular pathology and to treat the tibial condylar fractures.

• The Journal of Korean Orthopaedic Ultrasound Society
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• v.1 no.2
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• pp.122-127
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• 2008

Ultrasonography is a powerful and useful method for the examination of the various shoulder diseases. The use of high-resolution transducer and technical evolution allowed the improvement of the accuracy of detection of the rotator cuff disease. However, its limitation is that there is marked disparity in the interpretation according to the operators' experience. This article describes the ultrasonographic findings of rotator cuff pathology compared to the MR (magnetic resonance) imaging and arthroscopic findings for helping the interpretation of ultrasonographic picture.

• Journal of the Korean Arthroscopy Society
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• v.13 no.1
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• pp.58-62
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• 2009

A discoid medial meniscus is a relatively rare pathology of the knee joint, and we recently encountered a patient with discoid medial meniscus, and this report is a case of therapeutic experience in this patient. The patient was twenty years old man who had a persistent dull pain for several years without specific trauma history. He was presumptively diagnosed as discoid medial meniscus by MRI, and arthroscopic examination confirmed the presence of the complete type of discoid medial meniscus with horizontal tear. We performed arthroscopic partial meniscectomy, and the patient could get free from symptom.

• Journal of Veterinary Clinics
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• v.32 no.3
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• pp.251-254
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• 2015

A 3-year-old castrated male Spitz dog (8.4 kg) was referred for hindlimb lameness. The dog had undergone corrective surgery for bilateral medial patellar luxation 6 weeks prior to presentation. Intermittent lameness of both hind limbs was evident on general inspection. Physical examination revealed moderate pain and crepitus upon flexion and extension of the stifle joints. Radiography revealed features consistent with distal deviation of the cartilage flaps and effusion in both stifle joints. Detachment and deviation of both osteochondral blocks were suspected based on the physical and radiographic findings. Arthroscopy confirmed failed osteochondral blocks (right $1.5cm{\times}0.9cm{\times}0.2cm$, left $1.3cm{\times}0.9cm{\times}0.1cm$), which were removed. After removal of the osteochondral blocks, the stepped trochlear grooves were located and debrided using an arthroscopic burr, to prevent patellar tracking disorder. The dog resumed normal ambulation without medial patellar luxation 2 weeks postoperatively, and there were no complications. Arthroscopy is an effective surgical modality for the diagnosis and treatment of canine joint disorders. It offers a magnified view of the joint, which allows accurate evaluation of intra-articular structures. In addition, arthroscopic surgery can reduce the postoperative complications associated with surgical wound.

• Journal of the Korean Arthroscopy Society
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• v.16 no.1
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• pp.87-91
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• 2012

A making appropriate portals is most important start in the arthroscopic surgery, and a step which determines the easiness of the operation procedures. It affects the precision of the examination of the target joints, making the next portals, and handling the instrument in the joint space. The knowledge about the normal and pathologic structures and understanding the portals should be needed to make an arthroscopic surgery ease.

• The Academic Congress of Korean Shoulder and Elbow Society
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• 2004.11a
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• pp.47-53
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• 2004

• Journal of the Korean Arthroscopy Society
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• v.17 no.1
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• pp.6-10
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• 2013

Purpose: This study intends to verify the usefulness of magnetic resonance imaging (MRI) for estimate recovery after arthroscopic pull-out repair at root tears of medial meniscus. Materials and Methods: We performed 17 patients who examined MRI and arthroscopy among patients who had received repair of medial meniscus from November, 2007 to June, 2011. To determine restoration meniscus, we performed arthroscopy and MRI. Results: Lysholm knee scores before and after operation were average 56.4 and 79.0 and visual analogue scale (VAS) score was improved from 8 points to 3 points. From secondary look arthroscopy performed after operation, 17 cases showed stabilization after regeneration. However, In MRI, cleft sign implying root tears of medial meniscus was observed in all cases before and after operation, ghost sign was observed in 10 cases and 9 cases respectively, radial linear defect was showed 17 cases and 15 cases respectively. Conclusion: It was not useful that MRI after medial meniscus repair in non-anatomical site, to consider restoration of medial meniscus. To evaluate for recovery medial meniscus after repair more exactly, secondary arthroscopy would be required.