Added Value of Foot X-Ray to the Clinical Foot Postural Index in Patients with Early and Late Rheumatoid Arthritis: A Comparative Study | ||||
| The Medical Journal of Cairo University | ||||
| Article 76, Volume 87, March, March 2019, Page 625-629 PDF (416.6 K) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/mjcu.2019.52516 | ||||
 View on SCiNiTO | ||||
| Authors | ||||
| HATEM AHMED, M.Sc.; MOHAMED KAMAL, M.D.; MOUSTAFA E. RADWAN, M.D.; ABD EL-MAGEED EL-ASHMAWY, M.D.* | ||||
| Abstract | ||||
| Abstract Background: FPI-6 is considered a quick and simple clinical test in patients with Rheumatoid Arthritis (RA). However, its associations with different clinical and radiolog-ical parameters of the disease are not fully studied. Aim of Study: To assess the added value of foot radiology to the Foot Postural Index-6 (FPI-6) in assessment of early and late rheumatoid arthritis. Patients and Methods: The subjects were recruited over a period of 6 months from the Rheumatology outpatient's clinics in Al-Azhar University Hospitals, Egypt. FPI-6 was calculated in 90 subjects, 30 patients with early RA (disease duration 5 years) and 30 age and gender matched control subjects. Foot digital X-rays in the standing position were performed to measure foot angles; TNC (Talonavicular Coverage), first metatarsal talar (1st MT) and Calcaneal Pitch (CP) angles. Results: Pesplanus valgus was detected in 20% of early and 80% of late RA patients. Patients with late RA showed significantly higher bilateral FPI-6 than both the control subjects and patients with early RA (p=0.001). They also had significantly higher TNC, and 1st MT and lower CP (p=0.001). In RA patients, FPI-6 correlated significantly with both the duration of RA and the foot radiographic changes. Conclusions: The combined use of FPI-6 with radiological measurements of three angles of plain X-ray in addition to, the collapse of the longitudinal arch; Talonavicular Coverage angle (TNC); Lateral talar-1st metatarsal angle and Calcaneal pitch can be used in the clinical assessment of forefoot abduction and the severity of RA. | ||||
| Keywords | ||||
| Rheumatoid Arthritis; Foot posture index; FPI-6; Talonavicular coverage; First metatarsal talar; Calcaneal pitch | ||||
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