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Association between preoperative dynamic plantar pressures and clinical outcomes at 6 months after hallux valgus surgery
Affiliation:1. Centre de Recerca en Sanitat Animal (CReSA)- IRTA, Campus de la Universitat Autònoma de Barcelona (UAB), 08193 Bellaterra, Spain;2. Department Sanitat i Anatomia Animals, Facultat de Veterinària, UAB, 08193 Bellaterra, Spain;1. Servicio de Radiologia Hospital Begoña, Avda. Pablo Iglesias, 92, 33204, Gijón, Asturias;2. Servicio de Radiologia Fundación Hospital de Jove, Avda. Eduardo de Castro, s/n., 33290, Gijón, Asturias;3. Unidad de Investigación Fundación Hospital de Jove, Avda. Eduardo de Castro, s/n., 33290, Gijón, Asturias;4. Unidad de Investigación y Servicio de Anatomia Patológica Fundación Hospital de Jove, Avda. Eduardo de Castro, s/n., 33290, Gijón, Asturias;5. Unidad de Investigación y Servicio de Cirugia General Fundación Hospital de Jove, Avda. Eduardo de Castro, s/n., 33290, Gijón, Asturias
Abstract:BackgroundThe influence of preoperative plantar pressures on clinical outcomes following hallux valgus surgery has not been yet established. This study aimed to assess the relationship between preoperative dynamic plantar pressure measurements and clinical outcomes following hallux valgus surgery.Material and methodsA prospective cohort study where patients attending the foot and ankle unit between 2016 and 2017, diagnosed of hallux valgus requesting surgical correction were recruited consecutively and preoperative plantar pressure were measured. At 6-months after surgery, the foot condition and foot pain were measured, through the American Orthopedic Foot and Ankle Society Score (AOFAS), and using Visual Analog Scale (VAS), respectively. A multivariate logistic model was used to estimate the magnitude of the associations between the explanatory variables and outcomes.Results114 patients were included in the study. Significant differences between patients with and without pain at 6-months after surgery were found in mean force on first toe, peak pressure on third and fourth metatarsal head, and maximum force on fourth and fifth metatarsal head (p < 0.05). The multivariate logistic model showed significant association between the preoperative peak pressure on fourth metatarsal head (OR:0.996, p = 0.003), walking (OR:7.430, p < 0.001), orthopedic shoe after surgery period (OR:0.754, p = 0.019) and preoperative AOFAS (OR:0.947, p = 0.006), and the appearance of pain at 6-months after surgery.ConclusionThe presence of pain at six months after surgery was significantly associated with the preoperative peak pressure under the fourth metatarsal head.
Keywords:Foot  Hallux valgus  Pain  Metatarsalgia  Weight-Bearing  Fuß  Hallux valgus  Schmerzen  Metatarsalgie  Lastverteilung
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