Jacek Matysiakiewicz

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The case of a massive pelvis chondroma in a 15-year-old male is described. The patient was previously treated operatively due to multiple chondro-osseous exostoses. An extensive chondrous tumour was detected in the patient's pelvis and abdomen during a follow-up visit. This was accompanied by symptoms of intestinal obstruction and impaired micturition. CT(More)
Background. The goal of our research was to evaluate methods of reconstructing iliac bone defects in the authors' own clinical material. Material and methods. Between 2001 and 2004 we treated 16 patients: 10 women and 6 men, ranging in age from 32 to 72 years. The follow-up period was 6-40 months. Outcome was assessed according to clinical examination and(More)
BACKGROUND Aneurysmal bone cyst was first described by Jaffe and Lichtenstein in 1942. Schajowicz in 1972 in his Histopathological Classification of Primary Bone Tumors (later modified by WHO in 1993) placed it in group IX - tumor-like lesions. Its etiology and pathogenesis is not completely clear. Aneurysmal bone cysts are usually found in older children(More)
Background. The objective of our study was to evaluate the effectiveness of the surgical treatment of bony tumor-like lesions using bone allografts. Material and methods. The study group consisted of 266 patients, 136 males and 90 females, ranging in age from 9 to 55 years (mean 29). From 1999 to 2004, 250 surgical operations were performed, including(More)
Background. The proximal femur is a frequent location of bone metastases, and pathological fractures in this area are common. A pathological fracture and/or pain associated with bone destruction are indications for surgery. Among many methods of surgical treatment, partial resection and subsequent arthroplasty appears to be the most efficient. The low cost(More)
BACKGROUND A common feature of dysplasia fibrosa and defectus fibrosus is the development of foci of disordered fibrous tissue in bone that tend to grow and displace regular bone tissue. The objective of this study was to evaluate the efficacy of surgical treatment with bone allografts in patients with fibrous dysplasia and fibrous defect of bone. (More)
Background. The objective of our study was to evaluate the stabilization of reconstructed long bones after metastatic tumor resection and defect filling with polymethyl methacrylate (PMMA) or bone allograft. Material and methods. We studied a group of 107 patients who underwent surgery between 1996 and 2004 (55 females and 46 males). A primary neoplasmatic(More)
BACKGROUND An enchondroma is a rather common benign tumour of bone that originates from cartilage.The course is usually benign but they have a tendency to recur and are sometimes invasive, especially when developing in long bones. The aim of the study was to analyze the manifestations and methods of treatment as well as to assess the results of surgical(More)
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