Asmaa Mahmoud1,2, Paolo Abundo3, Luisanna Basile1, Caterina Albensi1, Morena Marasco3, Letizia Bellizzi3, Franco Galasso4, Calogero Foti1. 1. Physical and Rehabilitation Medicine, Department of Clinical Sciences and Translational Medicine, "Tor Vergata" University, Rome, Italy. 2. Physical medicine, Rheumatology and Rehabilitation Department, Cairo, Egypt. 3. Medical Engineering Service, Polyclinic Tor Vergata, Rome, Italy. 4. Baro Postural Instruments Srl Innovative Start Up, Rome, Italy.
Abstract
BACKGROUND: In spite the instinct social&financial impact of Leg Length Discrepancy (LLD), controversial and conflicting results still exist regarding a reliable assessment/correction method. For proper management it's essential to discriminate between anatomical&functional Leg Length Discrepancy (FLLD). With the newly invented NPoS (New Postural Solution), under the umbrella of the collaboration of PRM Department, Tor Vergata University with Baro Postural Instruments srl, positive results were observed in both measuring& compensating the hemi-pelvic antero-medial rotation in FLLD through personalized bilateral heel raise using two NPoS components: Foot Image System (FIS) and Postural Optimizer System (POS). This led our research interest to test the validity of NPoS as a preliminary step before evaluating its implementations in postural disorders. METHODS: After clinical evaluation, 4 subjects with FLLD have been assessed by NPoS. Over a period of 2 months, every subject was evaluated 12 times by two different operators, 48 measurements in total, results have been verified in correlation to BTS GaitLab results. RESULTS: Intra-Operator&inter-operator variability analysis showed statistically insignificant differences, while inter-method variability between NPoS and BTS parameters expressed a linear correlation. CONCLUSION: Results suggest a significant validity of NPoS in assessment&correction of FLLD, with high degree of reproducibility with minimal operator dependency. This can be considered a base for promising clinical implications of NPoS as a reliable cost effective postural assessment/corrective tool. LEVEL OF EVIDENCE: V.
BACKGROUND: In spite the instinct social&financial impact of Leg Length Discrepancy (LLD), controversial and conflicting results still exist regarding a reliable assessment/correction method. For proper management it's essential to discriminate between anatomical&functional Leg Length Discrepancy (FLLD). With the newly invented NPoS (New Postural Solution), under the umbrella of the collaboration of PRM Department, Tor Vergata University with Baro Postural Instruments srl, positive results were observed in both measuring& compensating the hemi-pelvic antero-medial rotation in FLLD through personalized bilateral heel raise using two NPoS components: Foot Image System (FIS) and Postural Optimizer System (POS). This led our research interest to test the validity of NPoS as a preliminary step before evaluating its implementations in postural disorders. METHODS: After clinical evaluation, 4 subjects with FLLD have been assessed by NPoS. Over a period of 2 months, every subject was evaluated 12 times by two different operators, 48 measurements in total, results have been verified in correlation to BTS GaitLab results. RESULTS: Intra-Operator&inter-operator variability analysis showed statistically insignificant differences, while inter-method variability between NPoS and BTS parameters expressed a linear correlation. CONCLUSION: Results suggest a significant validity of NPoS in assessment&correction of FLLD, with high degree of reproducibility with minimal operator dependency. This can be considered a base for promising clinical implications of NPoS as a reliable cost effective postural assessment/corrective tool. LEVEL OF EVIDENCE: V.
Entities:
Keywords:
anatomic leg length discrepancy; functional leg length discrepancy; hemi-pelvic rotation; lower limb inequality; new postural solution; personalized heel raise; postural assessment
Authors: Peter K Sculco; Timothy Wright; Michael-Alexander Malahias; Alexander Gu; Mathias Bostrom; Fares Haddad; Seth Jerabek; Michael Bolognesi; Thomas Fehring; Alejandro Gonzalez DellaValle; William Jiranek; William Walter; Wayne Paprosky; Donald Garbuz; Thomas Sculco Journal: HSS J Date: 2021-09-28