October 2000
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4 Reads
The Journal of Bone and Joint Surgery
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October 2000
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4 Reads
The Journal of Bone and Joint Surgery
September 2000
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5 Reads
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1 Citation
Orthopedics & Traumatology
September 2000
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8 Reads
Orthopedics & Traumatology
September 2000
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9 Reads
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1 Citation
Orthopedics & Traumatology
September 2000
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5 Reads
Orthopedics & Traumatology
September 2000
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3 Reads
Orthopedics & Traumatology
September 2000
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12 Reads
Orthopedics & Traumatology
Osteosarcoma rarely occurs in the hand. We report a case of osteosarcoma arising in the fourth metacarpal and review of the literature.A 40-year-old man suffered from the pathological fracture of the fourth metacarpal while playing volleyball. Bone tumor of the fourth metacarpal was found in radiographs of the fracture of the left index finger 15 years ago.Serological examination results including alkaline phosphatase were within the normal range.Pathological diagnosis of the incisional biopsy indicated possible mesenchymal chondrosarcoma. Wide resection and reconstruction with fibula graft were performed.Final pathological diagnosis was osteosarcoma, fibroblastic grade 4. Following surgery, chemotherapy was done. One year after surgery, bone union was achieved and the patient showed no local recurrence nor distant metastasis.
September 2000
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13 Reads
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3 Citations
Orthopedics & Traumatology
March 2000
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15 Reads
Orthopedics & Traumatology
Case 1: A 12-year-old boy complained of right buttock pain and high fever. Radiographic examinations demonstrated osteolytic lesion in his right iliac bone. He was treated with several antibiotics and his symptoms disappeared for two months. However, the fever increased again and atypical lymphocytes appeared in peripheral blood. Acute lymphoblastic leukemia (ALL) was diagnosed by myelocentesis.Case 2: A 3-year-old girl complained of right leg pain and high fever. Radiographic examinations demonstrated osteolytic lesion and periosteal reaction in her right tibia. She was treated with several antibiotics and her symptoms disappeared for two months. However, she suffered both fever and forearm pain again. Radiographic examinations revealed osteolytic lesions with periosteal reactions in both radius and ulna, which resembled Caffey's disease. Abnormal findings were not seen by bone biopsy and her symptom did not respond to antibiotic therapy. Atypical lymphocytes appeared in peripheral blood one week after bone biopsy and ALL was confirmed by myelocentesis.Both patients responded well to chemotherapy and have kept remission.
March 2000
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7 Reads
Orthopedics & Traumatology
We report a 15-year-old boy with osteosarcoma in the distal femur on whom we performed Canadell's method to preserve the knee joint. On the MRI, the epiphyseal plate was patent and unaftected by the metaphyseal tumor. During preoperative chemotherapy, the epiphyseal plate was distracted by Orthofix external fixator up to 37mm for 24 days. En-block resection of the tumor including the newly formed callus was performed without exposing the metaphyseal surface. Reconstruction of the bone defect was undertaken by vascularized fibula and pasteurized autogenous bone graft. The patient was functionally excellent and free from local recurrence of the tumor until he died of metastasis three years after this procedure.
... Although the duplicate PL is not so frequently occurred as mentioned above, it will provide a useful grafts in tendon surgery when found in patients. Since the distal tendon of the PP courses in the vicinity of the median nerve as seen in this study, it sometimes compresses the median nerve, causing a carpal tunnel syndrome (Floyd et al., 1990;Server et al., 1995;Miyoshi et al., 2000). It is interesting that the PP reflecting the old phylogenetic pattern occasionally cause a carpal tunnel syndrome. ...
September 2000
Orthopedics & Traumatology
... MRI is considered useful for diagnosis [2]. Although simple radiographs have been reported to show joint changes similar to hemophilia due to calcification or recurrent arthritis in patients with a long disease course [17], the findings are not disease-specific. Therefore, the definitive diagnosis is based on histological findings. ...
March 1996
Orthopedics & Traumatology
... In addition, human bone can deform, but the strain on bone is less than 2,000 microstrain units, even during vigorous activity 23) . This is presumed to be because the flow of extracellular fluid induced by mechanical stress (rather than physical deformation) affects the mechanisms of signal transduction 24,25) . The shaking stimulus delivered in the current study presumably subjected the lumbar vertebrae to direct mechanical stress via stimulation of the tendon of the psoas major muscle and it indirectly acted on the surrounding blood vessels, connective tissue, and periostea, lessening the decrease in bone density of the lumbar vertebrae. ...
January 1999
... Accordingly, the postoperative behavior of remnant tumors after IR, rather than the recurrence rate of tumors after GTR, should be highlighted, and several studies have investigated it. 4,7,[12][13][14][15] However, the reported growth rates of remnant tumors ranged widely from 16.7% 15 to 60%, 12,13 and most studies have failed to propose clinical implications to predict remnant tumor growth. Thus, this study investigated remnant tumor growth after IR of cervical DS and identified its predictive factors. ...
September 2000
Orthopedics & Traumatology
... A medial plantar flap from a plantar non-weight-bearing site has been used for moderate-sized tissue loss at the plantar weight-bearing site. 1 This flap is superior as a sensory flap with regard to tissue wear, prevention of ulcer recurrence, and other such factors. However, a wound at a plantar weight-bearing site is likely to lead to abnormal hyperkeratosis that can cause pain and fissures. ...
September 1999
Orthopedics & Traumatology
... The ligamentum flavum is a yellowish elastic ligament extending form second cervical vertebra to the S1 segment of sacrum consisting of 80% elastin (5) . The ligament is in the dorsal portion of the spinal canal, proximal insertion of ligamentum flavum is the ventral part of cranial lamina extending to the dorsal part of caudal lamina and extending to the capsules of facet joints and the posterior aspects of the neural foramina and is separated from the dura mater by epidural fat (9). ...
September 1996
Orthopedics & Traumatology
... The reverse process can be utilized in a distally based fashion to reach distal medial forefoot defects based on minor pedicles. This distally based approach is dependent upon the size and variability of the minor pedicles and may be less reliable because of this [14][15][16][17] . The flap is then often covered with a split- thickness skin graft or temporized with a dermal regenerative template [14][15][16][17] . ...
February 1995
Plastic & Reconstructive Surgery
... CGRP is released during tissue injury and plays an important role in wound healing through VEGF-mediated angiogenesis and vasodilation [11], immunomodulation [12], and enhancing proliferation of keratinocytes [13]. CGRP receptors are present on both B and T lymphocytes [14], as well as mast cells [15] and macrophages [16,17], where their activation can produce complex immunomodulatory effects. In the enteric nervous system, CGRP is used as a neurotransmitter both for ascending excitatory and descending inhibitory pathways that enable peristalsis. ...
March 1994
Bone and Mineral
... In 1998, Kanaya et al reported a good outcome with the combination of the synostosis resection and free vascularized fascial-fat graft interposition. 20 However, the lateral producer often finds it difficult to realign the radial head properly, leading to anterior or posterior radial head dislocation. 6 Our study's main limitation is the small patient sample size. ...
September 1998
The Journal of Bone and Joint Surgery