Gait alterations on carriers of bilateral arthroplasty of the hip suffering from LES: clinical, radiographic and instrumental evaluation with gait analysis
This study intends to assess deambulation of three patients suffering from LES who underwent bilateral non-cemented arthroplasty surgery of the hip for avascular necrosis of the head of the femur caused by LES, in order to identify any loading abnormalities or muscular deficits, and to develop a focused rehabilitation strategy.
Patients have been evaluated clinically, using Harris hip score, radiografically and with gait analysis. An increase and prolongation of the hip flexory moment is recorded during most of the stance compared to the normal subjects, in particular on the side operated first, with a pronounced accentuation of the power absorbed in the final stance phase.
Although the clinical and radiographic resuts were goood, alteration of the deambulation dynamic and above all a relevant muscular malfunctioning on both sides has been highlighted after two years from the bilateral arthroplasty surgery by gait analysis performed with the optoelectronic EL.I.Te. system.
Our experience showed alterations in the dynamics of the gait and the activation of the muscular groups, with reappearance, after two years, of some pre-operative pathological patterns on the side of the first implant.
The identification and the quantification of such abnormalities are essential to prevent prosthetic overloads.
KeywordsSystemic Lupus Erythematosus Avascular Necrosis Gait Analysis Biceps Femoris Rectus Femoris
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