Eun Sun Moon

Chonnam National University, Gwangju, Gwangju, South Korea

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Publications (12)17.02 Total impact

  • Eun Sun Moon, Myung-Sun Kim, Il-Kyu Kong
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    ABSTRACT: Isolated closed rupture of the short head of the biceps brachii is rare and has been reported infrequently. We experienced a case of traumatic isolated closed rupture of the short head of the biceps brachii in a healthy 21-year-old military paratrooper and report this case. At the surgery, the distal portion of short head of biceps brachii was sutured to the proximal stump and long head of biceps. At the last follow-up, elbow flexion strength was revealed 79% of normal and medial depression in the mid-portion of the upper arm was improved. Isolated rupture of the short head of the biceps brachii is a rare injury and early intervention is recommended if a sulcus or gap in musculotendinous unit is palpable or considerable weakness is present.
    Knee Surgery Sports Traumatology Arthroscopy 04/2010; · 2.68 Impact Factor
  • Eun Sun Moon, Sung Taek Jung, Myung Sun Kim
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    ABSTRACT: Recessive dystrophic epidermolysis bullosa (RDEB) is an uncommon and severe disorder characterised by trauma-induced blisters, intractable skin ulcers, scarring, milia, and nail dystrophy. We report the good result of both surgical release of fingers allowing spontaneous epithelisation without skin grafting and post-operative meticulous skin care without splinting, followed-up for one year.
    Hand Surgery 02/2007; 12(3):143-7.
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    ABSTRACT: In Legg-Calvé-Perthes disease (LCPD), 4 major patterns (coxa plana, coxa magna, coxa vara, subluxation) of the femoral head are commonly observed. However, direct observation of pathological specimens is rarely possible. An animal model of LCPD may clarify the pathogenesis of femoral head deformity. In 26 piglets, we interrupted the vascular supply to the capital femoral epiphysis by cutting the ligamentum teres and ligating the femoral neck containing the epiphyseal artery. 6-7 piglets in each experimental group were killed at early (2 and 4 weeks: P2 and P4), intermediate (12 weeks: P12), and late (20 weeks: P20) periods. We examined the extracted femoral heads macroscopically and radiographically. The mean decrease in epiphyseal height was 1.5 mm, 4.1 mm, 5.0 mm, and 7.5 mm in P2, P4, P12 and P20, respectively (rs = 0.76, p = 0.002). The mean increase of diameter was 4.1 mm, 6.9 mm, and 6.8 mm in P4, P12 and P20, respectively. Decrease of the articulotrochanteric distance was mild in P2 and P4, and severe in P12 and P20. Subluxation of the femoral head was observed only in P12 and P20 piglets. The piglet model of LCPD was useful in the early stage of devascularization for investigation of the developmental pattern of femoral head deformity. However, when the piglets had grown to 20 weeks old or more--that is, to full skeletal maturity--the femoral head and acetabulum showed severe deformities that were most likely caused by heavy body weight.
    Acta Orthopaedica 03/2006; 77(1):33-8. · 2.74 Impact Factor
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    ABSTRACT: Theoretically, the motion of a bipolar hip prosthesis is most likely to occur at the inner joint if the frictional coefficients are equal at both surfaces. However, many studies have suggested that most motion occurs at the outer joint. We performed an analysis of motion in a cadaveric bone model and in 50 patients during fluoroscopic examination, to determine how the motion is distributed between the two joints and what factors contribute to this distribution. The motion distributions varied widely between the patients. However, there was a relative pre-ponderance (63-90%) of outer motion in all directions of leg movement in addition to a persistent coexistence of motion at both joints in 44 of 50 patients. This preponderance of outer motion was the result of an early impingement of the acetabular cup and structural differences between the two joints. An adjustment of the positive eccentricity and a decrease in the frictional torque of the inner joint as a result of better lubrication and smoothness can be expected to improve the motion distribution, thus reducing the amount of acetabular erosion.
    Acta Orthopaedica Scandinavica 01/2005; 75(6):701-7.
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    ABSTRACT: The clinical importance of dysplasia epiphysealis capitis femoris (Meyer dysplasia) is that it is easily mistaken for Legg-Calve-Perthes disease, leading to unnecessary diagnostic procedures and treatments. After a review of 578 children (619 hips) with Legg-Calve-Perthes disease, 17 children (27 hips) in whom both the clinical and radiologic pattern was obviously different could be found and a diagnosis of dysplasia epiphysealis capitis femoris was finally made. The mean age was 2.5 (range 1.9-3.6) years. There were 16 boys and 1 girl. Ten children had bilateral involvement (59%). The capital femoral epiphysis was delayed or was smaller in 26 hips, separated or cracked in 15, and cystic in 6. A normal bone structure was established in approximately 2 to 4 years. The final results assessed by the Mose and the Stulberg classification were good in all 27 hips. This study suggests guidelines for evaluating this rare condition based on the authors' findings and a review of the literature.
    Journal of Pediatric Orthopaedics 01/2005; 25(1):18-21. · 1.16 Impact Factor
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    ABSTRACT: This study evaluated the final outcome of coxa magna that developed as a sequela of Legg-Calve-Perthes disease. The final outcomes at skeletal maturity were assessed by the Stulberg classification in 85 children with unilateral Perthes disease. Among them, 21 children had a bilateral arthrogram at the active stage of the disease, and the arthrogram measurements were compared with those measured at disease healing and at skeletal maturity. Coxa magna was observed in 53% (45/85), with a mean increase in 20.0 +/- 7.2%. These coxa magna and resulting acetabular deformities occurred in the early stage of the disease. In 68 hips with mild (1-9% increase) or moderate (10-19%) coxa magna, the final results were Stulberg I or II in 57 hips and III in 11. In 17 hips with severe coxa magna (> or =20%), the results were I or II in one hip, III in nine, and IV in seven. This means that 41% of the hips with severe coxa magna might have osteoarthritis later in life.
    Journal of Pediatric Orthopaedics 12/2004; 25(1):22-7. · 1.16 Impact Factor
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    ABSTRACT: Anterior cruciate ligament (ACL) reconstruction is completed after implantation, when the graft material used undergoes extensive biologic remodelling and osteointegration. Failure of the osteointegration between the graft tendon and bone decreases the graft strength and induces anterior instability. We experienced 2 cases of failed osteointegration between tendon and bone after ACL reconstruction using 4 strands of the hamstring tendon. Surprisingly, osteointegration between the bone and tendon junction was not shown by intraoperative findings. The histologic findings also presented no evidence of osteointegration or biologic remodeling of the tendon. Two cases of failure of osteointegration are reported, with a review of the literature.
    Arthroscopy The Journal of Arthroscopic and Related Surgery 05/2004; 20(4):424-8. · 3.10 Impact Factor
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    ABSTRACT: To validate the adverse effects of subluxation of the femoral head in Legg-Calve-Perthes disease, the authors made an experimental model of Perthes disease with subluxation in growing rabbits by interrupting the epiphyseal artery (devascularization) and immobilizing the knee in extension (immobilization). Seventy-two rabbits, 4 to 5 weeks old, were divided into three groups: group A with both devascularization and immobilization (25 rabbits), group B with devascularization only (25 rabbits), and group C with immobilization only (22 rabbits). In each experimental group, four to six rabbits each were killed at 1, 2, 4, 8, and 12 weeks. After reviewing the serial radiographs and gross specimens, the authors found six radiologic and six macroscopic abnormalities. The incidence and the severity of deformity in group A rabbits were higher than that of groups B or C in terms of the overall incidence of deformities (P <0.001), head deformity scores (P <0.001), and the incidence of a total collapse of the capital femoral epiphysis. In conclusion, subluxation of the immature femoral head with avascular necrosis in rabbits increased femoral head deformities.
    Journal of Pediatric Orthopaedics 01/2004; 24(6):645-50. · 1.16 Impact Factor
  • Acta Orthopaedica - ACTA ORTHOP. 01/2004; 75(6):1-1.
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    ABSTRACT: Although significant differences exist in the methods of treatment and prognoses of septic coxitis and transient synovitis in children complaining of acute hip pain, similar symptoms are present in these two diseases at the early stages, and differential diagnosis is difficult. To differentiate between these two diseases, the authors evaluated the clinical, serologic, and radiologic findings and tried to determine factors that could be used as diagnostic criteria. The authors performed a retrospective study by evaluating medical records, plain hip radiographs, and clinical findings in 97 patients with transient synovitis and 27 patients with septic arthritis. Univariate analysis showed significant differences in body temperature, serum WBC count, and ESR and CRP levels of the two patient groups. Plain radiographs showed a displacement or blurring of periarticular fat pads in all patients with acute septic arthritis, and multivariate regression analysis showed that body temperature >37 degrees C, ESR >20 mm/h, CRP >1 mg/dL, WBC >11,000/mL, and an increased hip joint space of >2 mm were independent multivariate predictors of acute septic arthritis. The authors conclude that the independent multivariate predictors are effective indices for the differential diagnosis of acute septic coxitis and transient synovitis.
    Journal of Pediatric Orthopaedics 04/2003; 23(3):368-72. · 1.16 Impact Factor
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    ABSTRACT: Routine radiographs in the follow-up study of Legg-Calvé-Perthes disease patient have generally been plain radiographs of the anteroposterior and frog-leg lateral view. Recently, several reports have found that osteochondritis dissecans can develop in 2% to 4% of Legg-Calvé-Perthes disease patients. Early roentgenographic recognition of this lesion is very important for its long-term prognosis. However, follow-up examination of the lesion using plain radiography is sometimes not satisfactory in terms of delineating the lesion. Accordingly, the authors performed computed tomography and three-dimensional reconstruction in 13 hips with osteochondritis dissecans following Legg-Calvé-Perthes disease and were able to obtain more precise information on the extent of the involvement, the degree of healing, the stability of the osteochondral fragment, and the location of the dislocated loose body.
    Journal of Pediatric Orthopaedics 01/2003; 23(3):356-62. · 1.16 Impact Factor
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    ABSTRACT: The treatment of osteochondritis dissecans after Legg-Calvé-Perthes' disease has not been clearly determined. It may be either by simple observation or surgical removal of the osteochondral fragment. We studied the evolution of the lesion in 13 children and reviewed 92 hips reported in the literature. In our patients ten showed a tendency towards spontaneous healing, one required drilling + grafting to obtain fusion, and in two there was separation into the joint. These loose bodies were in the acetabular fossa and caused no symptoms. On reviewing the literature, we found only four cases of hips with loose bodies from osteochondritis dissecans. These were lying in the inferomedial capsule and were also asymptomatic. Treatment of osteochondritis dissecans after Legg-Calvé-Perthes' disease should therefore be conservative unless the fragment interferes with the mechanics of the hip.
    Journal of Bone and Joint Surgery - British Volume 10/2002; 84(7):1025-9. · 2.69 Impact Factor

Publication Stats

50 Citations
17.02 Total Impact Points

Institutions

  • 2005–2010
    • Chonnam National University
      • Department of Orthopedic Surgery
      Gwangju, Gwangju, South Korea
  • 2002
    • Chonnam National University Hospital
      Sŏul, Seoul, South Korea