Naslov
Acetabular Complications After Resection of Bone Tumor Localized in Proximal Femur in Growing Children with Partial Hip Endoprosthesis - Biomechanical Consideration

Autori
Orlic, Dubravko ; Smerdelj, Miroslav ; Kolundzic, Robert ; Bergovec, Marko

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, ostalo

Izvornik
7th EFORT Congress - Official Abstract CD / - , 2005

Skup
7th EFORT Congress

Mjesto i datum
Lisabon, Portugal, 04.06.2005. - 07.06.2005

Vrsta sudjelovanja
Poster

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
Bone Tumor; Acetabulum; Femur; Endoprosthesis

Sažetak
Reconstruction of the joint after malignant bone tumor resection in order to preserve the limb function has traditionally been a difficult problem in orthopaedic oncology. It is more expressive in children: the majority of the bone tumors are diagnosed in the age when bone growth has not ended. After the "en bloc" resection of the tumor localized in proximal femoral part, the reconstruction of femur is performed mostly with endoprosthesis. In children with growing acetabular bone the implantation of partial hip endoprosthesis and the selection of proper size of endoprosthetic head for achieving congruence would give satisfactory limb function during the time after operation. The main problem occurs after a few years because of the physiological enlargement of the acetabular diameter: incongruency between the endoprosthetic head and the acetabulum results in alternation of pressure on acetabulum and lateral migration of endoprosthesis head, what finally leads to destruction of acetabulum roof and subluxation of the endoprosthetic head. Acetabuloplasty with total hip endoprosthesis in growing children will cause epiphysiodesis and restrain acetabular growth: that procedure is performed mostly on older children and adults. In younger - still growing children, for further acetabular growth, acetabuloplasty of the lateral roof with bone homotransplant and implantation of greater diameter femoral endoprosthetic head can be performed. The goal is to allow acetabulum to grow as normal as possible and as long as possible. The acetabuloplasty with endoprosthesis will be the final step of the acetabular reconstruction.

Izvorni jezik
Engleski

Znanstvena područja
Kliničke medicinske znanosti

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