Cases reported "Joint Diseases"

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1/158. Reactions and complications after the implantation of Endobon including morphological examination of explants.

    In the study described here, the integration of hydroxyapatite (HA) ceramic implants (Endobon) was investigated. These implants have an interconnecting system of pores and are free from foreign protein. The material is not toxic, genotoxic, nor zytotoxic, and it is biocompatible. The progress of integration was investigated by means of clinical and radiological check-ups. From 10 patients, it was possible to obtain samples for histological analysis during a second operation (e.g., metal explantation). Microscopic examination showed bony integration with newly formed bone in direct contact with the HA ceramic; it also showed osteoblasts and osteoid seams. No second operation took place earlier than 4 months after the first operation, yet even after this relatively short period, bony integration was already evident. Clinical observation (based on x-rays, reports of pain, signs of inflammation) showed that in most cases healing was taking place without complications. More general operational complications such as thrombosis or nerve injury were observed in 4 patients. If the implant is not sufficiently protected from mechanical stress, bony integation will not take place, and the implant may fracture. HA ceramic, with a porosity between 30% and 80%, is not comparable to cortical bone but only to spongy bone. This factor must be taken into account when deciding whether a HA ceramic implant is indicated.
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2/158. Determination of extent and activity with radionuclide imaging in erdheim-chester disease.

    erdheim-chester disease usually involves the diaphyseal and metaphyseal regions of tubular bones and various visceral organs. A 56-year-old woman presented with the histologically confirmed diagnosis of erdheim-chester disease. A Tc-99m MDP bone scan revealed the entire extent of the skeletal disease and showed unusual involvement of the epiphyses and axial skeleton. In addition to MRI, a Ga-67 citrate scan including SPECT showed extensive soft-tissue infiltration of different organs. Both Tc-99m MDP and Ga-67 scintigraphy are useful tools in determining the distribution of this rare disease.
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3/158. rhabdomyolysis in DOMS.

    A 26-year-old man with a previous history of external twin bursitis was remitted to our Department for a bone scintigraphy. Before the study, the patient performed an elevated number of intense sprints. Bone scintigraphy showed a bilaterally increased activity in both anterior rectum muscles suggesting rhabdomyolysis. Biochemical studies and MRT confirmed the diagnosis.
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4/158. Open surgical treatment for dialysis-related arthropathy in the shoulder.

    The clinical results of open surgical treatment for hemodialysis-related arthropathy in the shoulder were evaluated, and the pathology was investigated. Fifteen shoulders of 11 patients (6 female and 5 male) were treated during the past 6 years. The average age was 56.7 years. The duration of hemodialysis averaged 17.5 years. Simple curettage was performed in 7 shoulders, and curettage and bone graft were performed in 5 shoulders. Repair of the rotator cuff was performed in 3 shoulders. Pathologic foci always existed in the intertubercular sulcus and the greater tuberosity of the humerus. Marked proliferations of the bursa and multiple cystic bone lesions were found, and amyloid depositions were observed on histologic evaluation in all cases. Open surgical treatment was quite effective, and relief from the clinical symptoms was maintained for a satisfactory period of time. Enthesopathy induced by the amyloid deposition is considered the main pathology.
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5/158. Spondyloepiphyseal dysplasia tarda with progressive arthropathy.

    Spondyloepiphyseal dysplasia tarda with progressive arthropathy, described by Wynne-Davies et al., is a rare autosomal recessive disorder. It is characterised by generalised platyspondyly and epiphyseal involvement, with enlargement of both ends of the short tubular bones of the hands. Clinical features include onset in childhood, a disproportionately short stature and premature osteoarthritis. We describe the clinical and radiographic findings of a young woman suffering from spondyloepiphyseal dysplasia tarda with progressive arthropathy.
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6/158. Articular complications of homotransplantation and chronic renal hemodialysis.

    Renal homotransplantaion and chronic hemodialysis are accepted methods of treating end-stage kidney disease. However, these procedures are fraught with complications involving bones, joints, and soft tissues. transplantation and immunosuppressive therapy problems include "connective tissue-like" reactions, infections in joints and avascular necrosis of bone. Long term hemodialysis may accentuate secondary hyperparathyroidism, renal osteodystrophy, and metastatic calcification, which can be minimized by phosphorous control or calcium loading in the dialysate. In the presence of osteomalacia, vitamin d may be helpful and parathyroidectomy is indicated if autonomy is present. In one patient undergoing long term hemodialysis, a chalky material was aspirated from the olecranon bursa. Two inorganic solid phases were identified as being present - a major phase, octacalcium phosphate (ocp) and a minor phase, calcite (CaCO3). Because of its elusive properties, the role of OCP in biological systems is poorly known and can easily escape detection. methods of identification of OCP and its potential role in crystal deposition syndromes are discussed.
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7/158. Rapidly destructive arthropathy of the hip in haemophilia.

    The aetiology of rapidly destructive arthropathy is still being debated. We report a 48-year-old male haemophiliac who exhibited hip arthropathy that was similar to rapidly destructive arthropathy. The hip joint was destroyed 6 months after the onset of symptoms. Results of clinical and laboratory examinations did not show any features of neuropathic, inflammatory or septic arthropathy, except for coagulopathy. magnetic resonance imaging revealed an expansive joint capsule with synovial proliferation in the affected hip joint. Total hip arthroplasty was carried out successfully with total resection of the synovial tissue and joint capsule. A histological examination revealed bone necrosis, nonspecific inflammation, haemosiderosis and synovial hypertrophy. The recurrent bleeding into the hip joint induced pronounced inflammation with synovial proliferation and acute destruction of bony tissue.
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8/158. Formation of a bone and joint following blunt injury to the pelvis.

    The formation of a new bone from the lateral wall of the pelvis following blunt injury occurred in a 55-year-old woman. The bone articulated with the top of the trochanter by means of a synovial-lined joint. The case is an example of the remarkable ability of external forces to remodel newly formed bone into a functional architectural unit and to produce an accessory pseudojoint.
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keywords = bone
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9/158. Osteoid osteoma: diagnostic problems in joint and periarticular localizations.

    The diagnosis of osteoid osteoma is usually not difficult. In typical forms of the disease, with diaphyseal localization, the clinical course and radiographic findings are so typical that diagnosis may be considered certain even when there is no histological confirmation. In some localizations, nonetheless, such as in the cancellous or short bones, or when the lesion involves a joint, diagnosis may be difficult, uncertain and late. Between January 1991 and April 1997 a total of 91 patients who had been diagnosed as having osteoid osteoma were submitted to computed tomography. Of these patients, there were 34 females, and 57 males, and age ranged from a minimum of 2 to a maximum of 69 years. Localizations are reported in Table I. For the purposes of our study, several cases with atypical features have been selected from these. We found it interesting to emphasize the importance of a correct diagnostic procedure with the purpose of accurately identifying the lesion.
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keywords = bone
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10/158. Ossicles of knee menisci. Report of seven cases.

    Seven cases of ossicles in the posterior horn of the medial meniscus revealed that: trauma is not necessarily an antecedent; some knees with ossicles are asymptomatic; some knees may be treated conservatively and without surgery; ossicles can be distinguished from loose bodies under fluoroscopic examination. Microscopically the ossicles are living bone. Although the etiology is not proven, perhaps merit should be given to the theory of a vestigial or sesamoid-like bone.
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