• Title/Summary/Keyword: AVN

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A Study on Web-based Electronic Reference Services of Academic Libraries (대학도서관의 웹기반 전자참고정보 서비스에 관한 연구)

  • 유재옥
    • Journal of the Korean Society for information Management
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    • v.17 no.4
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    • pp.171-186
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    • 2000
  • The slody examined whethcr academe libraries deliver web~hased electronic relerencc services lo remole users. Amo~~g 178 acadclnlc lihraies. only 25.5% prolide reference services of inlroducing eleclronic reference materials and 20.8% o f h electron~c rdel-coce mquq rcwices. However, the use oi electronic access to reference inquuy was weak. One acarlcmic llbrarr reccived on avn-agc 3.2 queslions pcr monlh ovw elecmnic reference inquiries Irom remo~e users. Among the 1,128 questions i-cccived eleclroo~ci~lly, oldy 19.8% were reyardcd as real rekrencc queslmns.

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Modified Chevron Osteotomy for the Treatment of Hallux Valgus (Modified chevron 절골술을 이용한 무지외반증의 치험)

  • Lee, Bum-Gu;Park, Hong-Gi;We, Sung
    • Journal of Korean Foot and Ankle Society
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    • v.1 no.2
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    • pp.95-101
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    • 1997
  • Hallux valgus has been characterized by a valgus deformity of the great toe at the metatarsophalangeal joint, along with medial deviation of the first metatarsal, and by three components. First, there is a valgus angle more than $20^{\circ}$ at the first, metatarsophalangeal joint. Second, there is a greater angle than $9^{\circ}$ between the first. and second metatarsals. Third, there is bursal hypertrophy at the medial eminence of the first metatarsals head. The etiology is multifactorial and many procedures have been reported in the treatment of hallux valgus. Most of the procedures are directed towards pain relief, correction of deformity, and preservation of dorsiflexion in the first metatarsophalangeal joint. One such treatment is the Modified chevron osteotomy. It is technically simple, and provides greater stability than a standard osteotomy, and allows early ambulation after surgery. We a reviewed 19 cases with 13 patients of hallux valgus deformity. They were all treated with the Modified chevron osteotomy at the Department of Orthopedic Surgery, Choong ang Gil Hospital, between June 1988 and May 1994. The results of the study were as follows; 1. The mean age was 36 years. Three patients(5 case) were male and ten patients(14 cases) were female. 2. The mean value of the hallux valgus angle was $34.1^{\circ}$, and the first to second intermetatarsal angle was $12.1^{\circ}$, preoperatively. These angles were corrected to $15.8^{\circ}$ and $8.5^{\circ}$, respectively. 3. The metatarsalgia subsided in 17 cases (89.5%). avascular necrosis, non union, and dorsal angulation complicatious were nonexistant. Early bone healing occurred in all cases. 4. The Modified chevron osteotomy is technically simple. It provides excellent pain relief, early ambulation, increased mechanical stability, and many avoids many complications such as AVN, non-union, and dorsal angulation.

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Operative Treatment with Locking Compression Plate (LCP) in Proximal Humerus Fracture (잠김 압박 금속판을 이용한 상완골 근위부 골절의 치료)

  • Ha, Sung-Sik;Kim, Jae-Young;Hong, Ki-Do;Sim, Jae-Chun;Kang, Jung-Ho;Park, Kwang-Hee
    • Clinics in Shoulder and Elbow
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    • v.11 no.2
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    • pp.137-142
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    • 2008
  • Purpose: To evaluate the clinical and radiographic results of the treatment of a proximal humerus fracture with a locking compression plate(LCP). Materials and Methods: This study reviewed the results of 24 cases of a proximal humerus fracture treated with a LCP from January 2005 to April 2007, after a follow up of more than 12 months. There were 8 males and 16 females with a mean age of 68.9(33-90) years. The clinical results were evaluated using the Neer's evaluation criteria, and the radiographic results were evaluated using the bone union time and Paavoleinen method. Results: The mean time for bone union was 11.9 weeks. Using the Neer's functional evaluation, 21 cases of the 24 patients (87%) showed excellent or satisfactory results. Twenty two cases (91%) showed good results according to the Paavoleinen method. The complications encountered were metal failure (1 patient), AVN of the humeral head (1 patient) and joint stiffness (1 patient). Conclusion: The LCP demonstrated good results in the treatment of a proximal humerus fracture and has relatively fewer complications than other internal fixators.

Clinical Observation and Treatment of Fracture-Dislocation of Talus (거골 골절 및 탈구의 임상적 고찰)

  • Lee, Dong-Chul;Kim, Se-Dong;Jung, Hae-Hoon
    • Journal of Yeungnam Medical Science
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    • v.9 no.2
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    • pp.302-311
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    • 1992
  • Talus is a important structure of the ankle joint and its function is critical for ambulation and weight bearing. The talus fracture is rare, but the complications of fracture and dislocation are serious and resulting in avascular necrosis, osteoarthritis. So its treatment is carefully considered at initial status. Authors reviewed 11 cases of fracture and dislocation of the talus treated at Yeungnam university hospital from 1984 to 1991. The longest follow up was 8 years and shortest, 1 year. The results were as follows. 1. There were all males, the average age was 30 years old. 2. The most common cause was fall down(8 cases), and next traffic accident(2cases), sports injury(1 case). 3. According to Marti-Weber classification, 1 cases was type I, 1 in type II, 4 in type III and 5 in type IV. 4. The method of treatment were open reduction and internal fixation in 6 cases, the others were closed reduction in 5 cases. 5. Final results(by Hawkins grading system) were as follows, 3 cases were excellent, 4 cases were good, 1 case was fair and 3 cases were poor. 6. Complications were AVN in 2 cases, degenerative arthritis in 8 cases, malunion in 1 case. 7. The range of motion of the ankle joint was relatively preserved(74%), but in the subtalar joint it was decreased(43%).

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