Hallux valgus interphalangeus: reliability of radiological assessment |
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| Affiliation: | 1. North West Deanery, United Kingdom;2. Trauma and Orthopaedics Department, Royal Blackburn and Burnley Hospitals, East Lancashire Hospitals Trust, United Kingdom;1. Singapore General Hospital, Outram Road, 169608, Singapore;2. Imperial College Healthcare NHS Trust, The Bays, South Wharf Road, St Mary’s Hospital, London W2 1NY, United Kingdom;3. Fortius Clinic, 17 Fitzhardinge Street, London W1H 6EQ, United Kingdom;1. Unità Operativa C.A.S.C.O. — Piede e Caviglia, IRCCS Istituto Ortopedico Galeazzi, Milan, Italy;2. Dipartimento di Scienze Biomediche per la Salute, Università degli Studi di Milano, Milan, Italy;3. IRCCS Istituto Ortopedico Galeazzi, Milan, Italy;4. Università Vita-Salute San Raffaele, Milan, Italy;1. University of Vermont Medical Center, 111 Colchester Avenue, Burlington, VT 05401, United States;2. 192 Tilley Drive, South Burlington, VT 05403, United States;1. Department of Orthopaedic Surgery, Graduate School of Medical and Pharmaceutical Sciences, Chiba University, Chiba, Japan;2. Collage of Liberal Arts and Sciences, Chiba University, Chiba, Japan;3. Center for Preventive Medical Sciences, Chiba University, Chiba, Japan;1. Federal University of Minas Gerais (UFMG), Brazil;2. Federal University of São Paulo (UNIFESP), Brazil;3. Department of Orthopaedic and Trauma Surgery, Ospedale San Carlo, Presidio Ospedaliero di Villa D''Agri, Viale S. Pio da Pietrelcina, 85050 Villa d''Agri, Marsicovetere, PZ, Italy;4. Mater Dei Hospital, Belo Horizonte, Brazil;5. Università degli Studi di Salerno, Italy |
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| Abstract: | BackgroundReliable radiographic measurement of hallux valgus interphalangeus (HVI) deformity has a role in guiding surgical management. HVI can be assessed using:- •Hallux interphalangeal angle (HIA).
- •Distal articular set angle (DASA).
- •Proximal to distal phalangeal articular angle (PDPA).
The aim of the study is to investigate the reliability of these radiological parameters.MethodsSeventy foot radiographs in patients pre and post hallux valgus corrective surgery were assessed by 3 observers. HVI was assessed using the radiological measurements described above. Two-way random, single measure intra-class correlation coefficients were calculated to assess agreement.ResultsInter-observer reliability showed good agreement for DASA [ICC = 0.77(0.61–0.88)], and excellent for HIA [ICC = 0.92(0.85–0.96)] and PDPA [ICC = 0.91(0.84–0.96)]. Intra-observer reliability was excellent for all angles; DASA [ICC = 0.88 (0.76–0.95)], HIA [ICC = 0.94(0.86–0.97)] and PDPA [ICC = 0.83(0.65–0.92)].ConclusionsReliability is good to excellent among these three radiological techniques for assessing HVI. The HIA and PDPA are slightly more reliable. |
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| Keywords: | Hallux Valgus Interphalangeus Reliability |
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