title: Imaging findings at the donor site after iliac crest bone harvesting.
abstract: OBJECTIVE
  Postoperative imaging after iliac crest bone harvesting is commonly performed, but has not been extensively reported in the literature. The objective of this analysis was to investigate the donor site after iliac crest graft harvesting.
  
  
  METHODS
  Between January and December 2008, 3,450 patients underwent CT, which included the pelvis. Eighty-four patients were found whose iliac crests were harvested. The patient population consisted of 47 male and 37 female subjects ranging from 10 to 80 years old (mean 52.6 years) at the time of iliac bone harvesting. With the inclusion of prior examinations, 188 CT examinations, 17 MR imaging studies, and 19 bone scintigrams were analyzed at various time points after surgery.
  
  
  RESULTS
  Computed tomography images demonstrated fluid collections, hematoma, and air at the donor site up to 1 month after bone harvesting. The air then disappeared. Fluid collection decreased in size by 4 months. Scar-like changes at the harvest site and irregular thick cortical bone were observed after 4 months. Later, CT and MR imaging demonstrated small scar-like lesions and cortical irregularities.
  
  
  CONCLUSIONS
  The appearance of harvest site abnormalities depends on the time elapsed after surgery.
authors.affiliation: Department of Radiology, Fukushima Medical University Hospital, Fukushima, Japan. shirou@fmu.ac.jp
authors.forename: Shirou
authors.initials: S
authors.lastname: Ishii
authors.forename: Fumio
authors.initials: F
authors.lastname: Shishido
authors.forename: Masayuki
authors.initials: M
authors.lastname: Miyajima
authors.forename: Koutarou
authors.initials: K
authors.lastname: Sakuma
authors.forename: Takeshi
authors.initials: T
authors.lastname: Shigihara
authors.forename: Tadanobu
authors.initials: T
authors.lastname: Tameta
authors.forename: Makoto
authors.initials: M
authors.lastname: Miyazaki
authors.forename: Naoto
authors.initials: N
authors.lastname: Hashimoto
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D016025:Bone Transplantation / Q000009:adverse effects* / Q000379:methods; D002648:Child; D005260:Female; D006406:Hematoma / Q000175:diagnosis; D006801:Humans; D007085:Ilium / Q000000981:diagnostic imaging / Q000601:surgery*; D008279:Magnetic Resonance Imaging / Q000379:methods*; D008297:Male; D008875:Middle Aged; D011183:Postoperative Complications / Q000175:diagnosis*; D011877:Radionuclide Imaging; D020858:Tissue and Organ Harvesting / Q000009:adverse effects* / Q000379:methods; D014057:Tomography, X-Ray Computed / Q000379:methods*; D055815:Young Adult