Hallux valgus treatment for runners 6.0

Hallux valgus treatment for runners 6.0

The variables include only the relative transverse plane position of the axis guide, the relative sagittal plane position of the axis guide, and the extent of lateral translation of the capital fragment. metatarsal shaft (A) and aimed at the third metatarsal head (B), are dependant on the intermetatarsal angle and metatarsal length pattern in addition to the transverse plane position of the axis guide and the extent of lateral translation of the capital fragment. [18,19] However, the axis guide concept is a qualitative estimate, with the relative position of the temporary K-wire allowing the surgeon to generally correct for lengthening, shortening, dorsiflexion, or plantarflexion of the first metatarsal. In: Lorimer D, French G, O’Donnell M, Burrow JG, Wall B, editors. The intention of this investigation was an attempt to provide a quantitative estimate to the previously qualitative axis guide concept. Measurements were calculated based on 1/4, 1/3, and 1/2 lateral transpositions of the capital fragment of the first metatarsal. Geometric principles have been applied to distal first metatarsal and general forefoot surgeries in the past [20-31], but the intended emphasis of this investigation is an attempt to provide a quantitative estimate to the previously qualitative axis guide concept. Absolute axis guide positions relative to the first metatarsal in the transverse and sagittal planes can be correctly measured and effectively generalized to all hallux abductovalgus deformities. 3) However, relative axis guide positions, such as an axis guide that is perpendicular to the second metatarsal shaft (Figure 4A) or aimed at the third metatarsal head (Figure 4B), are additionally dependant on the intermetatarsal angle and metatarsal length pattern. The Law of Cosines was applied to the morphologic characteristics of a sawbone first metatarsal model. In terms of limitations, it is important to appreciate that all measurements represent absolute changes to the first metatarsal, and are not measured directly relative to the remainder of the lesser metatarsal parabola. Specific measurements, such as Hardy and Clapham’s tangential lines [16] and the Seiberg index [17], have been introduced to quantify how “long”, “short” or “elevated” the first metatarsal is relative to the remainder of the lesser metatarsal parabola.

The axis guide concept was introduced as an intra-operative tool to assist the surgeon in estimating the transverse and sagittal plane motion of the capital fragment during lateral transposition of a distal first metatarsal osteotomy for the surgical correction of the hallux abductovalgus deformity. It is the authors’ hope that this data can be used to further understanding of the perioperative evaluation and surgical correction of the hallux abductovalgus axis guide concept was first introduced as an intra-operative tool to assist the surgeon in estimating the transverse and sagittal plane motion of the capital fragment during lateral transposition of a distal first metatarsal osteotomy for the surgical correction of the hallux abductovalgus deformity. Previous works have established the importance of appreciating a long [3-12] , short [3,4,8,13,14] , or elevated [13,6,8,9,15] first metatarsal as a contributing deformity in the pre-operative evaluation of hallux abductovalgus. It does not provide a quantitative measurement for correction. [1,2] A temporary Kirschner wire (K-wire) is inserted in a medial to lateral direction through the center of the first metatarsal head and aimed distally or proximally (to achieve lengthening or shortening of the capital fragment respectively), and dorsally or plantarly (to achieve dorsiflexion or plantarflexion of the capital fragment respectively).

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