Effect of orthotic therapy on claw toe loading: results of significance testing at pressure sensor units.

This study demonstrates the effect of orthotic therapy for toe deformity on toe and metatarsal head pressures using a new analysis method facilitated by an in-shoe pressure-measurement system's ability to export detailed data. Plantar pressure-time integrals in 11 individuals (22 feet) with claw deformity of the lesser toes were measured with and without toe props. Differences in pressure-time integrals at every individual sensor unit were then calculated for the two conditions, and significance was tested using the paired t-test. Plantar surface charts with contours of equal significant pressure-time integral change showed significant reduction under 17 second toes (77%), 22 third toes (100%), 15 fourth toes (68%), 13 second metatarsal heads (59%), 16 third metatarsal heads (73%), and 16 fourth metatarsal heads (73%). All 22 feet showed increases under the prop in the area of the third toe sulcus. This innovative approach to plantar pressure analysis could improve access to data that show significant pressure-time integral changes and, therefore, could advance the clinical application of plantar pressure measurement.

Foot deformities: biomechanical and pathomechanical changes associated with aging, Part I.

This article reviews the most common foot deformities and pedal pathomechanical conditions that often result in pain and disability in the elderly. A description of the deformity or condition, its etiology, presenting symptoms, and various nonsurgical approaches to treatment are explored. The primary goal in all cases is to maintain or improve the patient's ability for comfortable, independent ambulation.

Hallux claw toe.

Claw hallux is a deformity of the great toe attributed to muscular imbalance. This article describes diagnosis and treatment of this condition. Particular attention is given to surgical techniques such as Jones technique and modified Jones technique.

Clinical acceptance, reasons for rejection, and reduction of in-shoe peak pressure with interdigital silicone orthoses.

BACKGROUND: For several years, confectioned or customized interdigital silicone orthoses have been used to treat toe malformations; however, long-term clinical and biomechanical studies are missing. The aim of this study was to evaluate the biomechanical effects of these orthoses and their clinical acceptance. METHODS: In 2008, 46 patients (30 women and 16 men; average age, 56.8 years) received interdigital silicone orthoses. All of the patients were included in the biomechanical and clinical study. Compliance and acceptance were measured by the Muenster shoe and foot questionnaire, which includes 13 items on pain, activities of daily living, satisfaction, and activity. Mean follow-up was 18 months. Ten feet (eight patients) were chosen by random and underwent pedobarography. One forefoot sensor and two single sensors were attached between the skin and the orthosis. Measurements were performed in-shoe three times with and without the orthosis without removal of the sensors. RESULTS: Forty-four of the 46 patients (95.7%) were included. At the 18-month investigation, 19 patients no longer used their orthoses, most commonly because of pain and failure of the material. Twenty-two patients regularly used their orthoses (8 h/d on average). In-shoe peak pressure lowered significantly with orthosis use (P < .04). Patients who used the orthoses were mostly satisfied. CONCLUSIONS: Interdigital silicone orthoses reduce in-shoe peak pressure. Patient satisfaction was good. The durability of the material has to be optimized, and manufacturing remains difficult. The effect on ulcer reduction must be evaluated in a large prospective study.

Hammertoe surgery: arthroplasty, arthrodesis or plantar plate repair?

In cases of painful complex hammertoe deformity, there is no single approach that can be used in all circumstances. If conservative care fails, surgical management may include interphalangeal joint arthroplasty, arthrodesis, and/or plantar plate repair. The best and most pragmatic surgical plan must be patient-centered, taking the age, activity level, expectations of the patient, and precise etiology of the hammertoe deformity into account.

Dedo en martillo agudo / Acute hammer toe

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Enfermedad de Charcot-Marie-Tooth: consideraciones ortopédicas / Charcot-Marie-Tooth syndrome: orthopaedic considerations

La enfermedad de Charcot-Marie-Tooth es una enfermedad heredodegenerativa del sistema nervioso periférico. La alteración es progresiva, y provoca deformidades en pies y manos. La musculatura de la pierna y el pie es la más afectada. La forma de presentación es muy diversa debido a que la afectación muscular es diferente en cada paciente. El pie cavo-varo es la forma de presentación habitual. El tratamiento conservador consiste en férulas correctoras, plantillas y rehabilitación. La indicación quirúrgica se plantea cuando fracasa el tratamiento conservador. La deformidad y el dolor son los problemas principales. En las deformidades flexibles se plantean cirugías para preservar las articulaciones. Los dedos en garra se tratarán con transferencias tendinosas o artroplastias. La deformidad en garra del dedo gordo se produce por el descenso del primer metatarsiano y la hiperactividad del músculo extensor hallucis longus. El tratamiento de esta deformidad del dedo gordo se realiza mediante la técnica de Jones. El descenso del primer metatarsiano necesitará una osteotomía dorsiflexora en la base del primer metatarsiano. Para el varo de retropié se utiliza la osteotomía valguizante de calcáneo. La retracción de la fascia plantar, gastrocnemio y Aquiles se trata con elongación de las estructuras retraídas. Cuando las deformidades son rígidas, será necesario realizar una artrodesis de las articulaciones afectadas. La artrodesis más utilizada es la triple artrodesis (AU)

Charcot-Marie-Tooth disease is a degenerative hereditary disease of the peripheral nervous system. The change is progressive and causes deformities in the feet and hands. The musculature of the leg and foot are most affected. The form of presentation is very diverse owing to the muscle involvement being different in each patient. The high-arched foot is the most common form of presentation. Conservative treatment consists of correction splints, insoles and rehabilitation. Surgery may be indicated when conservative treatment fails. The deformity and pain are the main problems. In flexion deformities surgery is indicated to conserve the joints. Claw hammer toes should be treated with tendon transfers and arthroplasty. The claw deformity in the big toe is caused by the descent of the first metatarsal and hyperactivity of the hallucis longus extensor muscle. The Jones technique is performed as treatment for this deformity of the big toe. The descent of the first metatarsal requires a dorsiflexion osteotomy in the base of the first metatarsal. For the hind foot varus a calcaneal vagus osteotomy is used. The tightening of the plantar fascia, gastrocnemius and Achilles is treated with an extension of the muscle contractures. When the deformities are rigid, it will be necessary to perform an arthrodesis of the affected joints. The arthrodesis most used is the triple arthrodesis (AU)