ISSN: 1899-0967
Polish Journal of Radiology
Established by prof. Zygmunt Grudziński in 1926 Sun
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2017
vol. 82
 
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abstract:
Original paper

Imaging of Complications After Limb Prostheses Implantation in Children with Bone Tumors

Beata Iwanowska
,
Hanna Brągoszewska
,
Jarosław Mądzik
,
Sylwia Szkudlińska-Pawlak
,
Izabela Kopyś-Wiszniewska
,
Małgorzata Jastrzębska
,
Barbara Kowalska
,
Maria Uliasz
,
Monika Bekiesińska-Figatowska

Pol J Radiol, 2017; 82: 227-232
Online publish date: 2018/02/02
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Background: Tumors of the developmental age are an important problem in clinical practice. Primary bone tumors constitute 1–1.5% of all tumors, and 7% of all tumors diagnosed in the developmental age. The aim of the study was to assess the capabilities of imaging methods in diagnosing complications of limb endoprostheses in children with osteoarticular tumors.

Material/Methods: We included 155 patients with limb endoprostheses, aged 7–26 years. There were 113 patients with knee prostheses, 1 patient with bilateral knee prostheses, 16 patients with shoulder prostheses, 14 patients with hip prostheses, 11 patients with hip and knee prostheses, and 1 patient with a femoral prosthesis. All patients underwent plain radiography and an ultrasound study.

Results: Complications were found in 50 patients (32% of all patients). The following complications were seen – inflammatory changes in soft tissues and bones (12 patients, 7.7%), stump fractures (11 patients, 7%), lack of elongation effect or shortening of the prosthesis (7 patients, 4.5%), prosthesis fractures (4 patients, 2.5%), crural fractures (4 patients, 2.5%), loosening of the prosthesis (3 patients, 1.9%), joint dislocation (2 patients, 1.3%), stump and prosthesis fracture (1 patient, 0.6%) and local recurrence (6 patients, 3.9%). Prostheses were exchanged for the following reasons – fractures (5 patients, 3.2%), inflammation (2 patients with 3 exchanges, 1.9%). Local recurrence and inflammation were confirmed by a biopsy.

Conclusions: Radiography and ultrasonography are of crucial importance in monitoring patients after implantation of limb endoprostheses. The findings did not require confirmation in additional studies: CT and MRI. Suspicion of local recurrence and inflammation required a biopsy confirmation.
keywords:

Equipment Failure Analysis • Neoplasms, Bone Tissue • Postoperative Complications • Ultrasonography • X-Ray Film




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