Medial Deviation of the First Metatarsal in Incipient Hallux Valgus Deformity

Abstract

Excessive medial deviation of the first metatarsal is not a causal factor but rather a consequence of hallux valgus deformity.

Relationship of Frontal Plane Rotation of First Metatarsal to Proximal Articular Set Angle and Hallux Alignment in Patients Undergoing Tarsometatarsal Arthrodesis for Hallux Abducto Valgus: A Case Series and Critical Review of the Literature

“…The search for consistent and effective procedures has continued for decades, and the attempts to classify the HAV deformity are numerous. Many have attempted to define the HAV by the etiology and progression of the deformity (7)(8)(9)(10). Although many descriptions and opinions have been published, disagreement exists regarding the elemental cause and progression of HAV deformity.…”

Effect of medial arch support foot orthosis on plantar pressure distribution in females with mild-to-moderate hallux valgus after one month of follow-up

“…4,[7][8][9]15 However, the majority of studies have examined the effect of the insole on pain, morphology, and symptoms in HV patients, 2,5-7 and our knowledge about the efficacy of the arch support foot orthosis in distribution of plantar pressure in this pathology is insufficient.…”

Effect of custom-made foot orthoses in female hallux valgus after one-year follow up

“…According to many authors, the development of HV is multifactorial, including both intrinsic and extrinsic factors. [3][4][5][6][7][8][9][10][11] The most common cause of adult HV is a combination of environmental factors (e.g. mechanical abnormalities caused by badly fitting footwear) and a genetic predisposition to constitutional anatomical factors, with some authors describing the latter to be involved in 70% of cases.…”

“…Excessive pronation of the subtalar joint during the stance phase of gait is responsible for instability of the foot, causing dysfunction of the first ray and the first metatarsophalangeal joint (MPJ), leading to deformities such as HV. 1,6,8,[13][14][15] 114 Prosthetics and Orthotics International 37 (2) If subtalar joint hyperpronation plays a fundamental role in the development of HV, then controlling the abnormal mobility of this joint by means of foot orthotics should prevent or control progress of the condition. But even though there have been various studies of the effectiveness of such conservative treatments, they have led to a situation of some controversy.…”