Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:dateCreated
1992-8-11
pubmed:abstractText
Three hundred fifty-five patients with osteosarcoma were surgically managed at the Istituto Ortopedico Rizzoli between 1983 and 1988. Three hundred two patients performed two cycles of neoadjuvant chemotherapy according to two different protocols consecutively activated; the remaining 53 patients were immediately operated on without neoadjuvant treatment. Follow-up ranged from 19 to 88 months, with a mean of 51 months. Demolitive surgery was performed in 116 patients (33%), while conservative in 239 patients (67%). A radical margin was achieved only in patients undergoing amputations: no radical surgical margins were achieved by local resection: 174 resected patients (73%) had wide margins, while 34 (14%) had marginal margins; 20 patients had contaminated margins and 11 patients (5%) had intralesional margins. Wide or marginal margins were achieved in 208 (87%) of the patients managed by local resection. Local recurrence was identified in 24 of 355 patients (7%). Incidence of local recurrence is strictly related to surgical margin, but above all, to tumor necrosis induced by neoadjuvant chemotherapy. In fact, neoadjuvant chemotherapy makes limb salvage feasible in the majority of cases without increasing the risk of local recurrence: in the group of patients immediately operated on without neoadjuvant chemotherapy, the incidence of local recurrence is dramatically high even when the surgical margins are adequate.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:status
MEDLINE
pubmed:month
Apr
pubmed:issn
0923-7534
pubmed:author
pubmed:issnType
Print
pubmed:volume
3 Suppl 2
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
S23-7
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1992
pubmed:articleTitle
Limb sparing versus amputation in osteosarcoma. Correlation between local control, surgical margins and tumor necrosis: Istituto Rizzoli experience.
pubmed:affiliation
Bone Tumor Center, The University, Istituto Ortopedico Rizzoli, Bologna, Italy.
pubmed:publicationType
Journal Article, Clinical Trial, Comparative Study, Randomized Controlled Trial