Publish in OALib Journal
APC: Only $99
We conducted this study to analyze the quality of life using the SF-36 health questionnaire and the MSTS scores depending on surgical method and the primary site of occurrence. On the surgical method, the limb salvage had more excellent outcomes (60.9) than the amputation (46.3). The tumor prosthetic replacement had notably higher scores (62.5) than any other methods. For the correlation coefficients on the MSTS and SF-36, the Physical Function had the highest degree of correlation. Excellent functions of the extremities would lead to a good quality of life.
Purpose: Osteosarcoma of limbs shows excellent therapeutic results due to development of diagnostic and treatment methods. However, osteosarcoma of pelvic bone is known to have lower incidence than those of limbs and poorer prognosis. This study is performed to research the diagnosis, treatment, treatment outcomes, and complications of osteosarcoma of pelvic bone and propose standards for adequate treatment. Objective and Method: 16 cases that were diagnosed as osteosarcoma of pelvic bone from January 1988 to October 2010 in Kosin University Gospel Hospital were analyzed. Follow-up periods were at least 2 months up to 60 months. There were 6 cases of male and 10 cases of female, and mean age was 44.3 (14 ~ 74) years old. 5 cases were accompanied by pulmonary metastasis at the time of the diagnosis. Surgical treatment including preoperative and postoperative chemotherapy was performed in 9 cases, and only chemotherapy and radiation were performed in 1 case. Among 9 cases having undergone surgical treatment, 3 cases were performed with biological reconstruction using autogenous bone graft and total hip replacement together, 1 case was performed with extracorporeal irradiated recycled autogenous bone graft, 1 case was performed with reconstruction using tumor prosthesis, and 4 cases were performed with wide excision. Retrospective review was done about diagnostic procedures, treatment methods and results, and complications. Results: Mean period from the onset of symptoms to the time of the diagnosis was 6.3 (3 ~ 12) months, and the symptoms were 7 cases of hip pain, each 3 cases of lumbar pain and radiating pain to lower limbs, pelvic mass, each 2 cases of inguinal pain, and each 1 case of thigh pain, Among the 9 cases performed with preoperative and postoperative chemotherapy and surgical treatment, there were 6 cases of T-10 protocol, 2 cases of T-20 protocol, and 1 case of IA (Intraarterial) Cis protocol. In the 1 case that haven’t undergone surgical treatment, T-10 protocol was performed. 13 of the 16 cases were expired, with the mean time of 15 (2 ~ 47 months) from the time of the diagnosis to death. Complications were 4
Purpose: This study analyzed oncological and functional outcomes of treatment for Ewing’s sarcoma, as well as its significant risk factors through long-term follow up. Objective and Method: Between September 1990 and April 2009, 20 cases that were diagnosed and treated as Ewing’s sarcoma in Kosin University Gospel Hospital were entered onto the study. Mean follow-up period was 45.4 (12 - 108) months. There were 7 cases of male and 13 cases of female, and mean age was 19.9 (5 - 48) years old. Retrospective review was done about treatment outcomes, complications, and significant risk factors. Results: In terms of oncologic results, there were 9 cases of CDF (continuous disease free), 1 case of NED (no evidence of disease), 4 cases of AWD (alive with disease), 5 cases of DOD (dead of disease), and 1 case of DWOD (dead with other disease). Five-year overall survival rate of all the patients was 70.0% and event-free survival rate was 50.0%. The mean MSTS (Musculoskeletal Tumor Society) score was 15.9 (53%) points at last follow-up. Among prognostic factors of age at diagnosis, Enneking stage, size of tumor, site of primary lesion, and distant metastasis, 5-year survival rate of groups without metastasis were 90.9%, nevertheless 44.4% in other group with the metastasis showing statistical significance (p = 0.020). Postoperative complications were 3 cases of infection, each 2 cases of ankylosis and metal failure, and each 1 case of leg length discrepancy, periprosthetic fracture, and local recurrence. Conclusion: Five-year survival rate of this study was similar to that of multicenter studies in America and Europe. Among the prognostic factors, distant metastasis was proven to be most significant. Enneking stage, size of tumor and site of primary lesion are also important and could be statistically significant if with more cases.
sulfide) (PPS) was thermally cured, which resulted in an increase of molecular
weight due to cross-linking. Non-isothermal crystallization studies of samples
cured for up to 7 days at 250?C showed a monotonous increase of crystallization
temperature compared to pure PPS. However, a further increase of curing time decreased
the crystallization temperature. The change in the half-crystallization time (t1/2) was similar to the
crystallization temperature. Thus, the cross-linking of PPS affected
crystallization behaviors significantly. To a certain
extent, crosslinks acted as nucleation agents, but excessive cross-linking
hindered the crystallization. Morphologies observed by polarized optical
microscopy suggested that thermal curing for as little as 1 day contributed to
the spherulitic structure having a smaller size, that was not observed with