Reliability of ultrasound for measurement of selected foot structures.

BACKGROUND: Understanding the relationship between the lower leg muscles, foot structures and function is essential to explain how disease or injury may relate to changes in foot function and clinical pathology. The aim of this study was to investigate the inter-operator reliability of an ultrasound protocol to quantify features of: rear, mid and forefoot sections of the plantar fascia (PF); flexor hallucis brevis (FHB); flexor digitorum brevis (FDB); abductor hallucis (AbH); flexor digitorum longus (FDL); flexor hallucis longus (FHL); tibialis anterior (TA); and peroneus longus and brevis (PER). METHODS: A sample of 6 females and 4 males (mean age 29.1 ± 7.2 years, mean BMI 25.5 ± 4.8) was recruited from a university student and staff population. Scans were obtained using a portable Venue 40 musculoskeletal ultrasound system (GE Healthcare UK) with a 5-13 MHz wideband linear array probe with a 12.7 mm × 47.1mm footprint by two operators in the same scanning session. RESULTS: Intraclass Correlation Coefficients (ICC) values for muscle thickness (ICC range 0.90-0.97), plantar fascia thickness (ICC range 0.94-0.98) and cross sectional muscle measurements (ICC range 0.91-0.98) revealed excellent inter-operator reliability. The limits of agreement, relative to structure size, ranged from 9.0% to 17.5% for muscle thickness, 11.0-18.0% for plantar fascia, and 11.0-26.0% for cross sectional area measurements. CONCLUSIONS: The ultrasound protocol implemented in this work has been shown to be reliable. It therefore offers the opportunity to quantify the structures concerned and better understand their contributions to foot function.

Postoperative immobilisation orthosis for surgically corrected hallux valgus.

A postoperative immobilisation orthosis was developed at the School of Physical Therapy and Rehabilitation, Department of Orthotics and Prosthetics, and applied from the first postoperative day as an alternative device for ambulation of patients who have undergone hallux valgus surgery while maintaining the corrected position. The orthosis is constructed with polyethylene thermoplastic sheet of 3mm thickness and Velcro. During the ambulation period, there was no complication or complaint due to its application and the position of the great toe was maintained. The time of the orthotic application was six weeks. The orthosis has allowed patients to walk with full weight bearing from the postoperative first day without any complication or recurrence.

Dokuz Eylül University (DEU) orthosis: an orthotic method of preventing ankle equinus during tibial lengthening.

An orthosis developed in Dokuz Eylül University (DEU) at the School of Physical Therapy and Rehabilitation, Department of Orthotics and Prostheticsis is described. It is applied as a non-invasive device attached to the distal ring of the Ilizarov external fixator to keep the ankle joint in a neutral position and prevent ankle equinus during tibial lengthening with Ilizarov technique. This minimises additional invasive techniques such as heel cord release and prophylactic pinning of the heel and the foot, and manipulation under anaesthesia. It may also be detached by the physiotherapist or patient when physical therapy is needed during the lengthening procedure.