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The Bone & Joint Journal
Vol. 101-B, Issue 5 | Pages 522 - 528
1 May 2019
Mechanisms of failure and survival of total femoral endoprosthetic replacements
Medellin MR Fujiwara T Clark R Stevenson JD Parry M Jeys L
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Aims

The aim of this study was to evaluate the prosthesis characteristics and associated conditions that may modify the survival of total femoral endoprosthetic replacements (TFEPR).

Patients and Methods

In all, 81 patients treated with TFEPR from 1976 to 2017 were retrospectively evaluated and failures were categorized according to the Henderson classification. There were 38 female patients (47%) and 43 male patients (53%) with a mean age at diagnosis of 43 years (12 to 86). The mean follow-up time was 10.3 years (0 to 31.7). A survival analysis was performed followed by univariate and multivariate Cox regression to identify independent implant survival factors.

The Bone & Joint Journal
Vol. 100-B, Issue 12 | Pages 1640 - 1646
1 Dec 2018
Comparison of minimally invasive and non-invasive systems in lengthening total femoral prostheses
Medellin MR Fujiwara T Clark R Jeys LM
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Aims

The aim of this study was to describe, analyze, and compare the survival, functional outcome, and complications of minimally invasive (MI) and non-invasive (NI) lengthening total femoral prostheses.

Patients and Methods

A total of 24 lengthening total femoral prostheses, 11 MI and 13 NI, were implanted between 1991 and 2016. The characteristics, complications, and functional results were recorded. There were ten female patients and ten male patients. Their mean age at the time of surgery was 11 years (2 to 41). The mean follow-up was 13.2 years (seven months to 29.25 years). A survival analysis was performed, and the failures were classified according to the Modified Henderson System.

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