mag 22 2012

Functional performance after hip resurfacing or total hip replacement: a comparative assessment with non-operated subjects.

Orthop Traumatol Surg Res. 2012 Feb;98(1):1-7. Epub 2012 Jan 17.

Szymanski C, Thouvarecq R, Dujardin F, Migaud H, Maynou C, Girard J.

Source

Lille Regional University Hospital Center, Lille cedex, France. arcadia.szymanski@gmail.com

Abstract

INTRODUCTION:

Several studies reported better clinical results with total hip resurfacing than with conventional total hip replacement, including in young patients, but without comparative stabilometry assessment.

HYPOTHESIS:

Resurfacing arthroplasty provides better functional performance than conventional total hip replacement.

OBJECTIVES:

To test the above hypothesis in a stabilometry study comparing balance and functional performance in patients with total hip resurfacing or conventional total hip replacement and healthy controls.

MATERIALS AND METHODS:

Results were analyzed on three cohorts of 20 patients: healthy control subjects, with unilateral total hip replacement or unilateral total hip resurfacing. The 40 operated patients were comparable in gender, age, weight (body-mass index), date of operation and clinical results. The 20 control subjects were younger and served as reference. Balance analysis employed a force platform commonly used in stabilometry, standardizing both leg or single leg stance balance analysis. The software interpreted individual balance by measuring plantar pressure center variation during the analysis so as to contour an individual both leg or single leg area of balance (statokinesigram, in mm(2)).

RESULTS:

Balance analysis on both leg found comparable results in the control and resurfacing groups. The weight-bearing statokinesigraphic both leg balance area was greater in the hip replacement than in either of the other two groups (p<0.05), and five times greater than in the resurfacing group (p<0.05). The single leg weight-bearing balance results were significantly better in the resurfacing group, with a statokinesigraphic balance area half that of the hip replacement group, whether on the operated or the non-operated side (p<0.001).

DISCUSSION AND CONCLUSION:

The present functional performance results confirm the advantage of resurfacing over conventional hip replacement, and help explain the excellent radioclinical results reported for total hip resurfacing.

LEVEL OF EVIDENCE:

III, comparative case-control study.

Copyright © 2012. Published by Elsevier Masson SAS.

PMID:

 

22257765

 

[PubMed - in process]
Pubblicato su http://www.ncbi.nlm.nih.gov/pubmed/22257765
mag 12 2012

Influence of posture on swallowing.

Eur J Paediatr Dent. 2011 Sep;12(3):171-4.

Source

University of Sassari, Dental Institute, Sassary, Italy. alumbau@uniss.it

Abstract

AIM:

This study investigates the relationship between posture disorders and swallowing, either of infantile type or affected by the presence of a short lingual frenulum.

Leggi l’articolo completo →

mag 9 2012

Rotary spectra analysis applied to static stabilometry.

Chiaramello E, Knaflitz M, Agostini V.

Source

Dipartimento di Elettronica, Politecnico di Torino, 24 Corso Duca degli Abruzzi, 10129 Torino, Italy. marco.knaflitz@ polito.it

Abstract

Static stabilometry is a technique aimed at quantifying postural sway during quiet standing in the upright position. Many different models and many different techniques to analyze the trajectories of the Centre of Pressure (CoP) have been proposed. Most of the Leggi l’articolo completo →

mag 4 2012

Vestibular and stabilometric findings in whiplash injury and minor head trauma

Acta Otorhinolaryngol Ital. 2011 December; 31(6): 378–389.
PMCID: PMC3272873
© Copyright by Società Italiana di Otorinolaringologia e Chirurgia Cervico-Facciale
A. NACCI, M. FERRAZZI, S. BERRETTINI, E. PANICUCCI,1 J. MATTEUCCI, L. BRUSCHINI, F. URSINO, and B. FATTORI
ENT, Audiology and Phoniatrics Unit, Department of Neurosciences,
1 Department of Experimental Pathology, University of Pisa, Italy
Address for correspondence: Dr. Andrea Nacci, ENT, Audiology and Phoniatrics Unit, Department of Neurosciences, University of Pisa, via Paradisa 2, 56124 Pisa, Italy. Tel.: +39 050 997518. Fax: +39 050 997519. E-mail: a.nacci@med.unipi.it
Received May 2, 2011; Accepted June 20, 2011.
This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial No Derivatives License, which permits for noncommercial use, distribution, and reproduction in any digital medium, provided the original work is properly cited and is not altered in any way. For details, please refer tohttp://creativecommons.org/licenses/by-nc-nd/3.0/
SUMMARY
Vertigo and postural instability following whiplash and/or minor head injuries is very frequent. According to some authors, post-whiplash vertigo cannot be caused by real injury to vestibular structures; other authors maintain that vestibular damage is possible even in the case of isolated whiplash, with vascular or post-traumatic involvement. Furthermore, many of the balance disorders reported after Leggi l’articolo completo →
apr 28 2012

Padova, 15 maggio 2012

Stabilometria e visione

Programma del corso:

Asse visuo podalico

Forie e difetti di convergenza

Visione e percezione

Ortottica e stabilometria

Quoziente di romberg

Occhiali, lenti, prismi

Dislessia

 

Il corso si svolgerà presso il Centro Congressi “A. Luciani” a Padova.

Relatori: Dott. Massimo Rossato – Dott. Marco Marcuz

Per fabriziofly • Inviato su Corsi
0
apr 27 2012

Effect of hormone therapy on postural balance in postmenopausal women.

Menopause. 2012 Apr 2. [Epub ahead of print]

Rodrigues Barral AB, Nahas EA, Nahas-Neto J, Cangussu LM, Buttros DD.

Source

From the Department of Gynecology and Obstetrics, Botucatu Medical School, Sao Paulo State University-UNESP, Sao Paulo, Brazil.

Abstract

OBJECTIVE:

The aim of this study was to analyze the effects of hormone therapy (HT) on postural balance in postmenopausal women and its association with risk of falls.

METHODS:

In this cross-sectional study, a total of 225 Brazilian postmenopausal women aged 45 to 75 years were included and divided into two groups: HT users (n = 102) and nonusers (n = 123). HT users were women who had continuously taken HT throughout the preceding 6 months, whereas nonusers received no such therapy during the same period. Women with in amenorrhea for more than 12 months and aged 45 years or older were included. Those with neurological or musculoskeletal disorders, vestibulopathies, uncorrected visual deficit, or drug use that could affect balance were excluded. Histories of falls (previous 24 mo) as well as clinical and anthropometric characteristics were analyzed. Postural balance was assessed through stabilometry (computerized force platform), Romberg test, and crouching test. Statistical analysis included the median test, χ test, Spearman correlation coefficient, and logistic regression method (odds ratio).

RESULTS:

Women users of HT were younger (53.0 vs 57.0 y) and with a shorter time since menopause (5.5 vs 10.0 y) than nonusers (P < 0.05). No anthropometric differences were observed. The number of women who had experienced falls was significantly lower among HT users than nonusers: 51 vs 88 falls, respectively (P < 0.05), and presented an adjusted risk of falls of 0.49 (95% CI, 0.27-0.88) times lower than the nonusers group. For the stabilometric parameters, HT users showed significantly lower amplitude in body oscillation (latero-lateral and antero-posterior) and a smaller oscillation area compared with nonusers (P < 0.05). There was no significant correlation between the Romberg test and fall rate (P > 0.05). In the crouching test, 47.1% of the participants showed an adequate level of muscle strength in lower limbs without differences between the groups (P > 0.05).

CONCLUSIONS:

Postmenopausal women using HT showed lower frequency of falls and a better performance in stabilometric parameters than did nonusers.

PMID:

 

22473249

 

[PubMed - as supplied by publisher]
Pubblicato su PubMed a http://www.ncbi.nlm.nih.gov/pubmed/22473249
apr 21 2012

Independent effects of adding weight and inertia on balance during quiet standing.

Biomed Eng Online. 2012 Apr 16;11(1):20. [Epub ahead of print]

Costello KE, Matrangola SL, Madigan ML.

Abstract

ABSTRACT:

BACKGROUND:

Human balance during quiet standing is influenced by adding mass to the body with a backpack, with symmetrically-applied loads to the trunk, or with obesity. Adding mass to the body increases both the weight and inertia of the body, which theoretically could provide counteracting effects on body dynamics and balance. Understanding the independent effects of adding weight and inertia on balance may provide additional insight into human balance that could lead to novel advancements in balance training and rehabilitation. Therefore, the purpose of this study was to investigate the independent effects of adding weight and inertia on balance during quiet standing.

METHODS:

Sixteen normal-weight young adult participants stood as still as possible on a custom-built backboard apparatus under four experimental conditions: baseline, added inertia only, added weight only, and added inertia and weight.

RESULTS:

Adding inertia by itself had no measurable effect on center of pressure movement or backboard movement. Adding weight by itself increased center of pressure movement (indicated greater effort by the postural control system to stand as still as possible) and backboard movement (indicating a poorer ability of the body to stand as still as possible). Adding inertia and weight at the same time increased center of pressure movement but did not increase backboard movement compared to the baseline condition.

CONCLUSIONS:

Adding inertia and adding weight had different effects on balance. Adding inertia by itself had no effect on balance. Adding weight by itself had a negative effect on balance. When adding inertia and weight at the same time, the added inertia appeared to lessen (but did not eliminate) the negative effect of adding weight on balance. These results improve our fundamental understanding of how added mass influences human balance.

Pubblicato su PubMed a http://www.ncbi.nlm.nih.gov/pubmed/22507125

ago 13 2011

Cyber Sabots

 

Cyber-Sabots™  è il dispositivo stabilometrico che ha ottenuto più riconoscimenti dalla comunità scientifica internazionale. L’innovazione di questo prodotto consiste nella possibilità di catturare contemporaneamente, ma separatamente, i valori delle forze e del movimento di ciascun tallone e avampiede. Il sistema è costituito da due piattaforme che permettono un analisi stabilometrica perfettamente sovrapponibile a quella ottenuta mediante i dispositivi stabilometrici classici, questo significa che i dati restituiti sono collocabili all’interno dei parametri di normalità riconosciuti dalle Normes AFP 85/2000. L’uso di 2 diverse piattaforme dinamometriche, una per ciascun piede, consente di ottenere valori separati e quindi interpretare il ruolo della caviglia e delle anche nel controllo dell’equilibrio del soggetto, la ripartizione dx/sin, anteriore e posteriore. Questi dati non vengono ottenuti con le piattaforme semplici, questo  approccio  inedito  in  posturologia  ha  aperto  la  strada  a  nuovi  concetti, metodi e parametri per una valutazione  clinica più approfondita e  raffinata.

 

Il software SabotSoft permette le seguenti funzioni:

 

  • Analisi stabilometrica
  • Statokinesigrammi e le loro ellissi di confidenza
  • Rilevazione del Centro di pressione e del Centro di massa
  • Controllo e sovra-controllo delle oscillazioni : Densità spettrale di interazione
  • Vettogramma del centro di pressione e del centro di massa
  • Spettrogramma delle forze verticali
  • Il Profilo Posturale
  • La diffusione Browniana
  • Diagramma delle asimmetrie
  • Trasformata in frequenza e tempo: Ondelettes
  • Riabilitazione e biofeedback Caratteristiche Tecniche
  • Altezza: 31mm
  • Peso: 1,3Kg
  • Materiale: Interamente costruiti da un blocco massiccio di lega per aviazione

 

Novità : Bascula di Bessou a basso profilo.