title: [The long-term behavior of homologous bone transplants in reconstruction of single chamber calcaneus cysts. Conventional and computerized tomography results].
abstract: Treatment of four unicameral calcaneal bone cysts by operative packing with homologous trabecular bone grafts was evaluated by conventional radiography and CT after a mean follow-up time of 51 months (range 48-57 months). Data on graft incorporation and remodelling are presented. In all cases trabecular bone showing an orderly arrangement was found to have developed in the cyst space. Homogeneous areas were present in 2 instances. These coincided with the neutral triangle, i.e. a zone in which stresses are physiologically low. Graft incorporation and remodelling followed Wolff's laws of bone transformation and can be regarded as complete before month 27. The final bone pattern is definitely established before month 50. Conventional radiography is sufficient for routinely evaluating the healing pattern. CT should be reserved for research purposes. Impaction of trabecular bone chips may be dispensable. Tight packing without impaction would at least help to save bone graft material. The use of homologous trabecular bone subjected to special pretreatment was found to be unproblematic. It minimizes surgery-related stresses and reduces the operating time.
authors.affiliation: Unfallkrankenhaus Wien-Meidling.
authors.forename: E
authors.initials: E
authors.lastname: Sim
mesh_terms: D000293:Adolescent; D000328:Adult; D001845:Bone Cysts / Q000000981:diagnostic imaging / Q000601:surgery*; D016025:Bone Transplantation / Q000473:pathology*; D002111:Calcaneus / Q000000981:diagnostic imaging / Q000601:surgery*; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D008297:Male; D011183:Postoperative Complications / Q000000981:diagnostic imaging*; D014057:Tomography, X-Ray Computed; D014945:Wound Healing / Q000502:physiology*
vernacular_title: Langzeitverhalten homologer Knochentransplantate bei Auffüllung einkämmeriger Fersenbeinzysten. Nativröntgenologische und computertomographische Ergebnisse.