• Knee surgery & related research
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• v.30 no.4
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• pp.348-355
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• 2018

Purpose: To evaluate the clinical effects of using anatomical bony landmarks (Parsons' knob and the medial intercondylar ridge) and minimal ablation of the tibial footprint to improve knee anterior instability and synovial graft coverage after double-bundle anterior cruciate ligament reconstruction. Materials and Methods: We performed a retrospective comparison of outcomes between patients who underwent reconstruction with minimal ablation of the tibial footprint, using an anatomical tibial bony landmark technique, and those who underwent reconstruction with wide ablation of the tibial footprint. Differences between the two groups were evaluated using second-look arthroscopy, radiological assessment of the tunnel position, postoperative anterior knee joint laxity, and clinical outcomes. Results: Use of the anatomical reference and minimal ablation of the tibial footprint resulted in a more anterior positioning of the tibial tunnel, with greater synovial coverage of the graft postoperatively (p=0.01), and improved anterior stability of the knee on second-look arthroscopy. Both groups had comparable clinical outcomes. Conclusions: Use of anatomical tibial bony landmarks that resulted in a more anteromedial tibial tunnel position improved anterior knee laxity, and minimal ablation improved synovial coverage of the graft; however, it did not significantly improve subjective and functional short-term outcomes.

• Journal of Korean Orthopaedic Sports Medicine
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• v.7 no.1
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• pp.27-32
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• 2008

Purpose: To evaluate the clinical results of the patients who underwent radiofrequency thermal shrinkage (RFTS) for treatment of anterior cruciate ligament (ACL) laxity after ACL reconstruction. Material and Methods: From October 1999 to March 2006, we performed 133 cases of ACL reconstruction. Among them we experienced 16 patients who had the laxity of reconstructed ACL in second look arthroscopy. Mean follow-up was 20.4 months. Mean age was 33.5 years. 12 cases were male and 4 cases were female. The elongated ACL were treated by bipolar radiofrequency energy with an output of grade II. Subjective and objective parameters were utilized in analyses, such as: the mean range of motion, Lysholm knee score, Tegner activity score, Lachman test, IKDC score. Wilcoxon signed-rank test was used to perform the data analysis. P<0.05 was considered to be statistically significant. Results: Postoperative mean Lysholm knee score (preop: $82.2{\pm}5.2(77{\sim}85))$ (P=0.04), postop: $85.2{\pm}4.8$(82-90)) and anterior displacement by the Telos stress test (preop: $5.4{\pm}4.6(3{\sim}10)mm$, postop: $2.1{\pm}1.9(0{\sim}4)mm)$ (P=0.02), Lachman's test, and IKDC scores (P=0.04) demonstrated significant differences statistically compared to the preoperative. There were no statistical differences in mean range of motion, Tegner activity scale. Conclusions: Arthroscopic shrinkage for the ACL laxity after ACL reconstruction with radiofrequency device showed good clinical results and was applicable operative technique.

• Proceedings of the Korean Information Science Society Conference
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• 1998.10a
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• pp.113-115
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• 1998

다중프로세서 환경에서 타스크들을 할당해주는 중앙 프로세서를 두고 Laxity를 기반으로 긴급타스크를 선택하여 스케쥴링을 수행한다. 중앙프로세서는 프로세서들의 슬랙시간과 각 프로세서의 Local큐에 대기하고 있는 비주기적 타스크의 총 수행시간 등의 상태정보를 수집 분석하여, 타스크의 실행시간에 가장 적합한 프로세서를 선xor하여 할당한다. 또한 타스크 특성에 따라 주기적 타스크와 비주기적 타스크로 나누고 주지적 타스크는 마감시간을 지키는 범위 내에서 최대한 수행시간을 연기 시켰다. 시뮬레이션 결과 Overload(마감시간을 지키지 못하는 타스크)수의 감소와 빠른 응답시간을 제공함을 알 수 있었다.

• Pediatric Gastroenterology, Hepatology & Nutrition
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• v.7 no.2
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• pp.248-252
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• 2004

Wandering spleen is a rare condition characterized by migration of the spleen from its normal position due to laxity or absence of the supporting splenic ligaments. Ultrasonography shows the absence of the spleen in left upper quadrant (LUQ) and the presentation in the lower abdomen of a homognous mass whose sonographic appearance is consistent with that of a spleen. Contrast-enhanced CT reveals the absence of the spleen in LUQ, a soft tissue mass resembling spleen in the lower abdomen, and the splenic pedicle of whirled appearance. We present a case of wandering spleen, which could be diagnosed with US and CT by the ectopic location of spleen and the whirling pattern of splenic pedicle.

• Proceedings of the Korean Information Science Society Conference
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• 2011.06b
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• pp.395-397
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• 2011

RT-eCos3.0은 대표적 분산 실시간 객체 모델인 TMO(Time-triggered Message-triggered Object)의 실행을 제공하기 위하여 공개소스 eCos3.0 기반으로 개발된 초경량 경성 실시간 임베디드 운영체제이다. RT-eCos3.0에서는 그간 스레드의 최장 수행 시간 입력이 필요 없는 EDF 및 FIFO 스케줄러를 지원하여 왔다. 본 논문에서는 TMO의 시간 구동 스레드와 메시지 구동 스레드의 스레드 등록 시 최장 수행 시간을 입력 받아 이를 기반으로 마감시간까지의 수행시간 대비 잔여시간을 이용하는 LLF (Least Laxity First) 스케줄러를 클럭 인터럽트 핸들러 내에 구현하고 각 스레드로 하여금 스케줄링 정책을 선택할 수 있도록 구현하였다.

• Clinics in Shoulder and Elbow
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• v.7 no.1
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• pp.1-4
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• 2004

As the multidirection and posterior instabilities of the shoulder are not only uncommon but responds well to conservative treatment, the shoulder instabilities which requires surgical treatment are traumatic anterior type in most cases, Although various surgical procedures had been used in the past, Bankart procedure is the standard surgical method as a primary procedure in traumatic anterior instability, Nevertheless there has been changes in the techniques of Bankart procedure in order to minimize decrease of external rotation and effectively address capsular laxilty, Capsular shift might be needed if there remains excessive capsular laxity of the inferior capsule after repair of the Bankart lesion, Large bony Bankart lesion should be fixed if possible and severe glenoid rim erosion requires extracapsular bone block after repair of the capsule. Although a few surgical procedures are described for the management of Hill-Sachs lesion in special circumstances, Hill-Sachs lesion does not usually need to be addressed.

• Journal of Yeungnam Medical Science
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• v.4 no.1
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• pp.157-163
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• 1987

Osteogenesis imperfecta has been categorized as a heritable disorder of connective tissue affecting both bone and soft tissues and is characterized by fragility of bone, blue sclerae, and deafness, less frequently by dentinogenesis imperfecta and laxity of ligament. The goals of orthopedic management with osteogenesis imperfecta are the treatment of acute fractures and long-term rehabilitation in an effort to maintain ambulation. We report a case of osteogenesis imperfecta with anterior bowing of tibia which was successfully corrected by multiple osteotomies and intramedullary fixation by Sofield method and reviewed literatures.

• Journal of the Korean Association of Oral and Maxillofacial Surgeons
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• v.38 no.5
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• pp.305-309
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• 2012

Temporomandibular joint (TMJ) subluxation and dislocation are uncommon but very unpleasant and distressing conditions to patients. Subluxation of the TMJ is an excessively abnormal condylar excursion secondary to flaccidity and laxity of the capsule. When the condyle head excurses anterior to the eminence upon wide opening, it can return to the fossa by self-manipulation or non-surgical conservative reduction. Surgery is recommended if a complete dislocation, so-called open lock, occurs as a chronic or recurrent protracted condition that cannot be reduced voluntarily. A range of surgical procedures can be performed to limit condylar hypermobility inclusing soft tissue tethering, creation of articular obstacles, removal of mechanical blockade and augmentation of articular eminence using different kinds of grafts. In the present case, a 74-year-old woman was diagnosed with a chronic TMJ dislocation that had lasted for 6 months. Bilateral condylectomy was performed and the post-operative results were good without functional limitations or recurrence.

• Journal of the Korean Arthroscopy Society
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• v.1 no.1
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• pp.81-85
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• 1997

This article describes a modified arthroscopic technique of anterior cruciate ligament (ACL) reconstruction using quadrupled hamstring tendon graft. The autogenous semitendinosus and gracilis grafts are harvested without detachment of the tibial insertion. To obtain longer graft, the accessory tibial insertions of the hamstring tendons are dissected. The EndoButton(Acupex Microsurgical, Andover, MA) is used for femoral fixation and two spiked staples are used for tibial fixation in a belt buckle fashion. Then the residual anterior laxity is restored by additional absorbable interference screw fixations. In this technique. more viable graft is obtained and firmer distal fixation is achieved by preservation of the tibial insertion of hamstring tendons.

• The Journal of Korean Academy of Orthopedic Manual Physical Therapy
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• v.5 no.1
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• pp.17-26
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• 1999

The pelvic floor is a muscular structure, pierced by urologic, genital, and distal intestinal tract. Also pelvic floor is not a frozen but a functional unit. The pelvic floor dysfunction has 1) laxity of soft tissue and muscle 2)rupture of pelvic floor, 3)increased the tension. The purpose of this study is to give information about the pelvic floor dysfunction and pelvic exercise. This investigate the pelvic floor structure and function, pelvic floor dysfunction, pelvic floor exercise, and recent research trends. The pelvic floor exercise is one of important exercise in physical therapy, this exercise program will be improved patients with pelvic floor dysfunction.