• Korean Journal of Ophthalmology
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• v.32 no.6
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• pp.438-444
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• 2018

Purpose: To compare the success rates of performing only silicone tube intubation versus carrying out both conjunctival resection and silicone tube intubation. Methods: The subjects of this study involved 62 patients (96 eyes) between October 2015 and May 2017 who were diagnosed as having punctal stricture or nasolacrimal duct stenosis. Out of 96 eyes, 47 underwent only silicone tube intubation, and 49 underwent both silicone tube intubation and conjunctival resection. Three parameters were measured at 1, 3, and 6 months after the surgery: the area of the tear meniscus using RTVue-100 anterior segment optical coherence tomography, the height of the tear meniscus using a slit lamp microscope, and the subjective satisfaction of patients as a result of improved sympotms like epiphora. The surgery was considered successful when the patients' experienced the resolution of symptoms and reduction of the area and height of the tear meniscus. Results: The area of the tear meniscus, height of the tear meniscus, and subjective satisfaction of patients was superior in the group that underwent both silicone tube intubation and conjunctival resection compared silicone tube intubation only. Based on these results, the success rate of the surgery was 68.9% in the group that underwent only silicone tube intubation and 78.7% in the group that underwent both silicone tube intubation and conjunctival resection. Conclusions: The resection of relaxed plica semilunares seems to increase the success rate of silicone tube intubation through the reduction of the area and height of the tear meniscus. Therefore, after determining the degree of conjunctivochalasis, if it was found to be severe, a combination with conjunctival resection was expected to increase the success rate of the surgery.

• 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.

• Journal of the Korean Arthroscopy Society
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• v.7 no.1
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• pp.52-57
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• 2003

Purpose : To evaluate the morphologic measurement and microvasculature of the normal human meniscus in Korean and to compare the difference of microvasculature according to the age and anatomical location. Materials and methods : Menisci of 21 cadavers divided into 3 groups according to the age. Each meniscus was divided into 10 parts of which the width and area of microvasculature were measured. Results : The average width of the medial and lateral menisci were $10.49{\pm}02.92mm$ and $10.55{\pm}2.05mm$, respectively. The average area of the microvasculature measured $20.29{\pm}8.44\%$ in the medial meniscus and $18.99{\pm}7.03\%$ in the lateral meniscus. The microvasculature of the medial meniscus was most abundant in the anterior horn and least abundant in the posterior horn (p<0.05). The lateral meniscus showed the most vessels in the posterior horn (p<0.05). The microvasculature of popliteal hiatus was not avascular but hypovascular. The area of microvasculature decreased with increasing age in all parts of the medial meniscus and body and posterior horn of the lateral meniscus (p<0.05). Conclusion : Differences in the anatomical distribution of the vessels were noted of both the medial and lateral menisci. The area of microvasculature generally decreased proportionally with increasing age in both medial and lateral meniscus.

• 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.

• Maxillofacial Plastic and Reconstructive Surgery
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• v.12 no.1
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• pp.202-209
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• 1990

A retrospective study of 498 patients (591 joints) who had diagnosed as having internal derangement of the temporomandibular joint by history, clinical examination, and arthrography were evaluated. 66 patients (70 joints) were diagnosed as having meniscus perforation between the joint compartments. In those patients with pain (11 joints : 15.7%), pain and crepitation (24 joints : 34.3%), pain, crepitation and LOM (31 joints : 44.3%), and painless crepitation with LOM (4 joints : 5.7%) complained clinically. All these patients who had perforation showed irregularity in outline of the contrast material, bone contour-contrast material gaps, flattening of cortical layer of articular eminence. On the 20 joints treated surgically, 17 joints were found to have meniscus perforation at the time of surgery which correlated with their pre-operative radiographic and clinical diagnosis. Three joints could not found perforation of meniscus. This study was designed to examine of the incidences of the meniscus perforation in the above patients and to assess the diagnostic accuracy of arthrography by comparing the results with the finding of direct examination at TMJ surgery.

• Journal of the Korean Arthroscopy Society
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• v.9 no.2
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• pp.214-217
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• 2005

Meniscal cyst is an uncommon disease of knee joints, arising less frequently from medial meniscus than lateral. Most of they are accompanied with horizontal tear of meniscus. This is the case of 24 year old man who had 2 separate medial meniscal cysts with longitudinal tear on posterolateral side of medial meniscus without trauma. Treatment consisted of arthroscopic decompression of cysts and meniscal repair.

• Journal of the Korean Arthroscopy Society
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• v.5 no.1
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• pp.45-48
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• 2001

The anterior horn of the medial meniscus is attached to the anterior surface of the tibia. The anterior horns of the medial and lateral menisci are connect with the transverse ligament. The posterior horn of the medial meniscus is firmly attached to the posterior aspect of the tibia just anterior to the insertion of the posterior cruciate ligament. The authors incidentally found an anomalous insertion of posterior horn of medial meniscus into the anterior horn area during arthroscopic examination in the symptomatic knee joint, which had been ruptured anterior cruciate ligament, and report with literature review.

• Journal of the Korean Society for Precision Engineering
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• v.29 no.4
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• pp.455-460
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• 2012

The Electrostatic Inkjet system has many applications in cost and time effective manufacturing of printed electronics like RFIDs, OLEDs and flexible displays etc. This paper presents pneumatic ink supply system for an electrohydrodynamic deposition (EHD) setup for the precise pressure control to produce a small amount of discharge at the end of the capillary. The meniscus shape depends upon the applied pneumatic pressure to the ink supply system. Furthermore, this paper also compares meniscus shapes at different applied pneumatic pressures. It is concluded that patterning of constant line-width can be achieved better by controlling the meniscus shape using this technique.

• The Journal of Korean Orthopaedic Ultrasound Society
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• v.1 no.1
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• pp.14-17
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• 2008

Meniscal extrusion is defined as a distance of 3 mm or more between the peripheral border of the meniscus and the edge of the tibial plateau on the coronal plane, associated with degeneration or tear of meniscus, effusion, osteophyte, osteoarthritis. There are many advantages of ultrasonography, including cost, dynamic real-time assessment. We evaluated a patient with anteromedial mass of the knee by ultrasonography, which was proved to be the extrusion of medial meniscus. We report a case of extrusion of medial meniscus evaluated by ultrasonography with review of the related literatures.

• Journal of the Korean Arthroscopy Society
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• v.2 no.1
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• pp.64-67
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• 1998

A ganglion cyst is a soft tissue mass that is surrounded by a dense connective-tissue capsule. The capsule is filled with a viscous fluid that is rich in hyaluronic acid and other mucopolysaccharides. But, Ganglion cysts in the knee joint are rare. There are very few case reports of ganglion cysts related to the surface of the anterior cruciate ligament, Posterior cruciate ligament and medial meniscus. We are reporting a case of a ganglion cyst in the anterior aspect of the anterior cruciate ligament accompanying with discoid lateral meniscus in the right knee of a 46-year-old woman without any history of trauma. The cyst and discoid lateral meniscus were treated successfully with arthroscopic excision and partial meniscectomy.