EAN: 9784431668671

OPERATIVE TREATMENT OF PELVIC TUMORS KARTONIERT...

This book presents our experience in the operative treatment of bone and soft-tissue tumors
arising in and around the pelvis  from 1970 to 1999 in the Department of Orthopedic Surgery at
the Niigata University Medical Hospital. Histological diagnoses included both benign and
malignant tumors. Surgical plan ning was difficult to perform in our early experience in
operative treatment  when only angiography and barium enemas were in use. In the meantime 
computed tomog raphy scanning and magnetic resonance imaging became available. Subsequent
improvement in the quality of these images made three-dimensional surgical plan ning for pelvic
tumor removal much easier. Such progress in diagnostic methodolo gies  together with
advancements in microsurgical techniques  methods of irradiation  and various adjuvant
chemotherapies has led to significant improvements in the treat ment of pelvic tumors.
Furthermore  these advancements were enhanced by the avail ability of various conventional and
custom-made endoprostheses  plates and screws  spinal instruments  and external fixators made
of 3161 stainless steel  titanium  high density polyethylene  and ceramics. Because sacral
tumors are so silent and symptomless  they may grow to a large size and be difficult to excise.
Removal of sacral tumors might make subjective symptoms worse because the sacrum contains the
cauda equina. Excision of a tumor that involves the ilium and sacroiliac joint may interrupt
the structural stability of the pelvic ring. A tumor affecting the hip joint may require
reconstruction to re-establish the func of the hip and to provide stability for gait after
operative treatment.

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