Document Detail

GAIT analysis in patients operated with a novel total ankle prosthesis.
MedLine Citation:
PMID:  19477648     Owner:  NLM     Status:  MEDLINE    
A new three-part total ankle prosthesis was designed recently to restore natural joint motion while maintaining full congruity of the articulating surfaces. This was achieved by replicating natural function for the ligaments. Early functional recovery was assessed in the present study in patients who underwent replacement with this prosthesis. This was undertaken using the AOFAS clinical scoring system and gait analysis, performed preoperatively and at 6 and 12 months from surgery. The 10 patients had, at the time of operation, a mean age of 57.4 years (range 45-72), and BMI 25.8 (range 20.4-34.1). A recently proposed protocol for three-dimensional and anatomically based analysis of joint kinematics and kinetics was used. The AOFAS score rose from 44.3 pre-op to 81.5 and 81.0 respectively at 6- and 12-month follow-up, with particular improvement in function. Spatio-temporal parameters improved considerably already at 6 months. More normal patterns and ranges of rotations and moments were observed in the three anatomical planes of the replaced ankle at 6 months and maintained at 12 months. In particular the improvement in dorsi-plantarflexion range in stance was significant, though a limited plantarflexion in swing occurred. EMG revealed a good recovery of physiological activity for the biceps femoris at 12-month follow-up. The new ankle prosthesis contributed to early functional recovery at 6 months, maintained at 1 year.
S Ingrosso; M G Benedetti; A Leardini; S Casanelli; T Sforza; S Giannini
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Publication Detail:
Type:  Journal Article     Date:  2009-05-28
Journal Detail:
Title:  Gait & posture     Volume:  30     ISSN:  1879-2219     ISO Abbreviation:  Gait Posture     Publication Date:  2009 Aug 
Date Detail:
Created Date:  2009-07-03     Completed Date:  2009-09-24     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9416830     Medline TA:  Gait Posture     Country:  England    
Other Details:
Languages:  eng     Pagination:  132-7     Citation Subset:  IM    
Movement Analysis Laboratory, Istituto Ortopedico Rizzoli, Via di Barbiano 1/10, 40136 Bologna, Italy.
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MeSH Terms
Ankle Joint*
Arthroplasty, Replacement / rehabilitation*
Case-Control Studies
Joint Prosthesis*
Ligaments, Articular
Middle Aged
Prosthesis Design
Range of Motion, Articular

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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