Objective: To evaluate the efficacy of surgical treatment to correct the main deformities associated with flexible cavovarus foot due to Charcot-Marie-Tooth disease. Methods: Fifteen patients (18 feet) with flexible cavovarus feet due to Charcot-Marie-Tooth disease were evaluated and underwent surgery between 2000 and 2015. We used a “triple surgery” protocol: a combination of plantar fasciotomy, valgus-inducing osteotomy of the calcaneus, and lengthening osteotomy of the first metatarsal. After a mean follow-up time of 105 (48 to 198) months, we developed a numerical scale to assess the main aspects of patient complaints: pain (3 points), function (3 points) and deformity (4 points). The scale considered the results of the visual analog pain scale, the American Orthopedic Foot and Ankle Society Scale, and the Coleman block test, as well as clinical and radiographic evaluation of gait and cavovarus deformities. Results: According to the numerical scale, the results were considered satisfactory in 15 of the 18 feet (84%) and unsatisfactory in 3 (16%). Conclusion: In the medium term, the “triple surgery” protocol proved efficient for correcting cavovarus deformities, providing functional improvement while preserving mobility without pain complaints. In the final analysis, through the “triple surgery” protocol, early indication for arthrodesis can be avoided, postponing sacrifice of the hindfoot joints. Level of Evidence IV; Therapeutic Studies; Case Series.

Introduction: Pes cavus is a deformity characterized by a high longitudinal medial arch. It is classically associated with neurological conditions, among which Charcot-Marie-Tooth (CMT) disease is the most common. Treatment options depend on the flexibility of the deformity. Various procedures are available to correct flexible pes cavus; these procedures can be performed in combination, and there is no standardized technique. There is limited information in the literature on the long-term outcome of treatment, and thus far, there is no consensus on the ideal surgery. The objective of the present study was to assess the efficacy of triple surgery (TS) (plantar fasciotomy, valgising calcaneal osteotomy and first metatarsal extension osteotomy) in the long-term treatment of pes cavus of patients with CMT. Methods: Between 2000 and 2015, 15 patients with CMT and pes cavus who underwent TS were treated at our department, including a total of 18 feet from 8 women and 7 men. The mean age of the patients at the time of the surgery was 21 years (9 to 60 years), and the mean follow-up time was 11 years (4 to 19 years). Of the 18 feet that underwent TS, 14 required an additional procedure. To analyze the outcomes of TS, criteria were stipulated and divided into 3 categories: pain (A), deformity (B) and function (C). The following criteria were analyzed: category A: AOFAS pain subscale, pain visual analog scale; category B: clinical and radiographic pes cavus, clinical and radiographic hindfoot varus; category C: gait, flexibility and AOFAS-function subscale. Each analyzed subitem was scored (total score: 10 points) to determine whether correction was achieved and maintained until the final assessment according to different objective criteria. The outcome was considered good when the score was 8 points or more, fair when the score ranged from 5 to 7 points, and poor when it was 4 points or less. Results: When pre-established criteria were objectively applied, 10 feet had a good outcome, 5 feet had a fair outcome, and 3 feet had a poor outcome; thus, a total of 15 feet (83%) had a satisfactory long-term outcome. Conclusion: Triple surgery was effective for treating patients with CMT, providing good deformity correction of pes cavus in addition to long-term clinical and functional improvement.

Osteoma osteóide (OO) é definido como um tumor ósseo osteoblástico, benigno, acometendo com maior frequência pacientes jovens do sexo masculino. Devido à sua raridade e sintomatologia inespecífica, o diagnóstico do OO no pé pode ser postergado e confundido com doenças levando à ausência do correto diagnóstico por anos. Neste relato, apresentamos um caso de um paciente do sexo masculino de 22 anos com diagnóstico de osteoma osteóide no tálus que teve o seu diagnóstico atrasado por aproximadamente três anos, confundido e tratado como complicação após entorse de tornozelo. Realizamos também uma revisão da literatura sobre o osteoma osteóide no pé e tornozelo.