Hallux valgus surgery affects kinematic parameters during gait. (December 2016)

• Record Type: Journal Article
• Authors: Klugarova, Jitka; Janura, Miroslav; Svoboda, Zdenek; Sos, Zdenek; Stergiou, Nicholas; Klugar, Miloslav
• Is Part Of: Clinical biomechanics. Volume 40(2016)
• Page Start: 20
• Page End: 26
• Publication Date: 2016-12
• Subjects: Foot -- Walking -- Surgery -- Biomechanics -- Locomotion; Biomechanics -- Periodicals; Osteopathic medicine -- Periodicals; Biomechanics -- Periodicals; Osteopathic Medicine -- Periodicals; 612.76
• DOI: 10.1016/j.clinbiomech.2016.10.004
• Languages: English
• ISSNs: 0268-0033

Abstract

Abstract: Background: The aim of our study was to compare spatiotemporal parameters and lower limb and pelvis kinematics during the walking in patients with hallux valgus before and after surgery and in relation to a control group. Methods: Seventeen females with hallux valgus, who underwent first metatarsal osteotomy, constituted our experimental group. The control group consisted of thirteen females. Kinematic data during walking were obtained using the Vicon MX system. Findings: Our results showed that hallux valgus before surgery affects spatiotemporal parameters and lower limb and pelvis kinematics during walking. Hallux valgus surgery further increased the differences that were present before surgery. Specifically after hallux valgus surgery, the walking speed decreased even more (p = 0.09, η 2 = 0.19) while step time increased (p = 0.002, η 2 = 0.44) on both legs. The maximum ankle plantar flexion of the operated leg during toe-off decreased to a greater extend (p = 0.03, η 2 = 0.26). The asymmetry in the hip and the pelvis movements in the frontal plane (present preoperatively) persisted after surgery. Interpretation: Hallux valgus is not an isolated problem of the first ray, which could be just surgically addressed by correcting the foot's alignment. It is a long-term progressive malfunction of the foot affecting the entire kinematic chain of the lower extremity. Highlights: Hallux valgus deformity is not only a problem of the foot's structure and function. Hallux valgus affects the entire lower limb and the pelvis motion during walking. Hallux valgus surgery itself solves only problems related with skeletal alignment. Hallux valgus surgery does not solve dynamic related problems that occur during walking. Hallux valgus surgery solves only consequences and not causes.