Radiographic Analysis of Metatarsus Primus Elevatus and Hallux Rigidus

Abstract

Based on the findings in this study, an MPE greater than 5 mm could be considered a predictive factor in the presence of hallux rigidus. However, the mechanism of MPE has yet to be determined.

Evaluation of first metatarsal head declination through a modified distal osteotomy in hallux rigidus surgery. A cadaveric model

“…Espinosa et al [17] demonstrated a significant 5.2 mm elevation of the first metatarsal in patients with hallux rigidus compared with hallux valgus and controls in a 295 ft study. In these latter two groups of patients, the position of the first metatarsal was at 2.8 and 2.6 mm of elevation from the second metatarsal, respectively.…”

Radiologic Patterning of Hallux Deformity in Rheumatoid Arthritis and Its Relationship to Flatfoot

“…The phalangeal reference points in the anteroposterior and lateral radiographs were placed 0.5 to 1 cm distal to the proximal articular surface and 0.5 to 1 cm proximal to the distal articular surface or the tip of distal phalanx (18). Metatarsus primus elevatus was measured using the method described by Bouaicha et al (18) (Fig. 1).…”

“…The proximal metatarsal reference points in the lateral radiographs were placed 1 to 2 cm distal to the proximal articular surface and the distal points were placed on the center of the approximate circle fit in the metatarsal head. The phalangeal reference points in the anteroposterior and lateral radiographs were placed 0.5 to 1 cm distal to the proximal articular surface and 0.5 to 1 cm proximal to the distal articular surface or the tip of distal phalanx (18). Metatarsus primus elevatus was measured using the method described by Bouaicha et al (18) (Fig.…”

“…1B and C) Longitudinal axes bisecting the shafts of the metatarsals and phalanges were drawn by connecting 2 reference points set on the bone. The metatarsal reference points in the anteroposterior radiographs were placed 1 to 2 cm proximal to the distal articular surface and 1 to 2 cm distal to the proximal articular surface (18). The proximal metatarsal reference points in the lateral radiographs were placed 1 to 2 cm distal to the proximal articular surface and the distal points were placed on the center of the approximate circle fit in the metatarsal head.…”

A Multicenter Retrospective Review of Outcomes for Arthrodesis, Hemi-Metallic Joint Implant, and Resectional Arthroplasty in the Surgical Treatment of End-Stage Hallux Rigidus

“…Clinically, a decrease or absence of range of motion, along with pain and/or crepitus, is noted (2). Radiographically, typical joint destructive changes are identified, including narrowing and flattening of the joint space, subchondral sclerosis, cystic changes, joint debris, and dorsal spurring (2,3). Intraoperatively, a direct examination of the joint surfaces reveals denudation of cartilage, cystic changes to the surrounding bone, and periarticular osteophytic spurring.…”