The Experts below are selected from a list of 222 Experts worldwide ranked by ideXlab platform
Ana Silva - One of the best experts on this subject based on the ideXlab platform.
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Coxa Magna and severe osteoarthrosis in an adult male from the Bronze Age necropolis Torre Velha 3 (Serpa, Portugal)
Journal of Archaeological Science: Reports, 2020Co-Authors: Daniel Fidalgo, Ana SilvaAbstract:Abstract A middle-age adult male from the Bronze Age necropolis Torre Velha 3 (Serpa, Portugal) shows an enlarged right femoral head (Coxa Magna) with severe osteoarthrosis, and compatible changes on the right acetabulum. Using macroscopic and X-ray analysis, we discuss its possible aetiology as Legg-Calve-Perthes, slipped femoral capital epiphysis, congenital hip dislocation, osteomyelitis or trauma. The results were inconclusive, given the lack of clinical data, and the challenge of analysing pathological conditions that developed during childhood in mature skeletal remains. Nonetheless, it is possible that this individual had an abnormal gait, which impacted his daily activities, besides having benefited from help from members of his community.
Daniel Fidalgo - One of the best experts on this subject based on the ideXlab platform.
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Coxa Magna and severe osteoarthrosis in an adult male from the Bronze Age necropolis Torre Velha 3 (Serpa, Portugal)
Journal of Archaeological Science: Reports, 2020Co-Authors: Daniel Fidalgo, Ana SilvaAbstract:Abstract A middle-age adult male from the Bronze Age necropolis Torre Velha 3 (Serpa, Portugal) shows an enlarged right femoral head (Coxa Magna) with severe osteoarthrosis, and compatible changes on the right acetabulum. Using macroscopic and X-ray analysis, we discuss its possible aetiology as Legg-Calve-Perthes, slipped femoral capital epiphysis, congenital hip dislocation, osteomyelitis or trauma. The results were inconclusive, given the lack of clinical data, and the challenge of analysing pathological conditions that developed during childhood in mature skeletal remains. Nonetheless, it is possible that this individual had an abnormal gait, which impacted his daily activities, besides having benefited from help from members of his community.
Charles T. Price - One of the best experts on this subject based on the ideXlab platform.
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Traumatic hip dislocations in children and adolescents: pitfalls and complications.
The Journal of the American Academy of Orthopaedic Surgeons, 2009Co-Authors: José A. Herrera-soto, Charles T. PriceAbstract:Traumatic hip dislocation is an uncommon injury in children. Lack of familiarity with management of the treating physician may lead to complications. Hip dislocation in young children can occur with minor trauma; in adolescents, greater force is required to produce a traumatic complete hip dislocation. Transient hip dislocation with spontaneous but incomplete reduction is a diagnostic pitfall that can occur in adolescents. Any asymmetric widening of the hip joint warrants additional investigation. Most dislocations in children can be reduced with gentle manipulation. Urgent reduction of the hip within 6 hours of injury reduces the risk of osteonecrosis. However, closed reduction in adolescents should be performed with caution because of the risk of displacement of the femoral head during manipulation. Open reduction is indicated when closed reduction fails or when there is interposition of bone or soft tissue following attempted closed reduction. Late complications include osteonecrosis, Coxa Magna, and osteoarthritis. Language: en
Sung Man Rowe - One of the best experts on this subject based on the ideXlab platform.
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Deformity of the femoral head following vascular infarct in piglets
Acta orthopaedica, 2006Co-Authors: Sung Man Rowe, Eun Sun Moon, Eun Kyoo Song, Jae Joon Lee, Jae Yoon Chung, Hyoung Yeon SeoAbstract:Background In Legg-Calve-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.Animals and methods 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.Results 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 di...
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comparison of Coxa Magna in legg calve perthes disease and developmental dysplasia of the hip
대한정형외과학회지, 2005Co-Authors: Sung Man Rowe, Sung Taek Jung, Bong Hyun Bae, Jin Choi, Kyungsoon ParkAbstract:Purpose: Legg-Calve-Perthes disease (LCPD) and developmental dysplasia of the hip (DOH) are the most common causes of Coxa Magna. However, little is known regarding the differences between Coxa Magna caused by these two diseases in terms of their incidences, severities, and related factors. Materials and Methods: 85 patients with unilateral LCPD and 48 patients with unilateral DOH, who were followed to full skeletal maturity, were reviewed. Results: The incidences of Coxa Magna, on a per patient basis, were 53% in LCPD and 19% in DDH. Mean percentage increases in femoral head diameter were 20.0% in LCPD and 15.1% in DDH. Related morphological changes in LCPD showed gradual increases as the extent of Coxa Magna increased. In contrast, changes in DDH did not show a gradual increase. A decrease in hip epiphyseal height with avascular necrosis was closely related to the extent of Coxa Magna. Moreover, this epiphyseal height decrease, resulting from mechanical compression, is believed to play an important role in the development of Coxa Magna. Conclusion: The incidence and severity of Coxa Magna were significantly higher in LCPD than in DDH, and Coxa Magna severity was closely related to final outcome. We suggest different mechanisms for Coxa Magna development in these two diseases.
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The correlation between Coxa Magna and final outcome in Legg-Calve-Perthes disease.
Journal of pediatric orthopedics, 2005Co-Authors: Sung Man Rowe, Eun Sun Moon, Eun Kyoo Song, Jong Yoon Seol, Jong Keun Seon, Seung Sik KimAbstract: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.
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The Results of Treatment in Developmental Dislocation of the Hip between 6 and 24 Months Old
Journal of the Korean Orthopaedic Association, 2003Co-Authors: Sung Man Rowe, Jong Keun Seon, Hyoung Yeon Seo, Yong Cheol ParkAbstract:Purpose: To evaluate the outcome of treatment for developmental dislocation of the hip (DDH) in children in whom the treatment was delayed until they were 6 to 24 months old. Materials and Methods: Fifty two hips of 48 children between 6 and 24 months old, who have not been treated for DDH were selected for this study. The treatments for these children were closed reduction in 16 hips and open reduction in 36 hips. Patients were followed-up for 11 years on average and for 5 years at minimum. Results: According to Severin’ classification, 39 hips (75%) were included in the 'atisfactory group' while 13 hips (25%) were 'nsatisfactory' The 'nsatisfactory group'consisted of 7 hips showing an impaired secondary ossification center in the acetabular rim, 5 hips with persistent resubluxation after weaning the orthosis, and one hip showing severe Coxa Magna. Additional bony procedures for the underdeveloped acetabuum and/or proximal femur were required in 12 hips, except for one showing severe Coxa Magna. Conclusion: The radiological outcome of DDH in children in whom the treatment was delayed until 6 to 24 months old was satisfactory in 39 hips (75%). Unsatisfactory hips required additional bony procedures, which we expect will improve the final outcome.
José A. Herrera-soto - One of the best experts on this subject based on the ideXlab platform.
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Traumatic hip dislocations in children and adolescents: pitfalls and complications.
The Journal of the American Academy of Orthopaedic Surgeons, 2009Co-Authors: José A. Herrera-soto, Charles T. PriceAbstract:Traumatic hip dislocation is an uncommon injury in children. Lack of familiarity with management of the treating physician may lead to complications. Hip dislocation in young children can occur with minor trauma; in adolescents, greater force is required to produce a traumatic complete hip dislocation. Transient hip dislocation with spontaneous but incomplete reduction is a diagnostic pitfall that can occur in adolescents. Any asymmetric widening of the hip joint warrants additional investigation. Most dislocations in children can be reduced with gentle manipulation. Urgent reduction of the hip within 6 hours of injury reduces the risk of osteonecrosis. However, closed reduction in adolescents should be performed with caution because of the risk of displacement of the femoral head during manipulation. Open reduction is indicated when closed reduction fails or when there is interposition of bone or soft tissue following attempted closed reduction. Late complications include osteonecrosis, Coxa Magna, and osteoarthritis. Language: en
