Browsing by Author "Saito, Guilherme Honda"
Now showing 1 - 2 of 2
Results Per Page
Sort Options
Item Open Access Foot Alignment in Symptomatic National Basketball Association Players Using Weightbearing Cone Beam Computed Tomography.(Orthopaedic journal of sports medicine, 2019-02) de Cesar Netto, Cesar; Bernasconi, Alessio; Roberts, Lauren; Pontin, Pedro Augusto; Lintz, Francois; Saito, Guilherme Honda; Roney, Andrew; Elliott, Andrew; O'Malley, MartinBackground
Weightbearing cone beam computed tomography (WB CBCT) allows detailed 3-dimensional imaging of the foot and ankle in a weightbearing state and provides improved accuracy and reliability of foot alignment measures, especially when compared with conventional radiographic views.Purpose
To describe the foot alignment in National Basketball Association (NBA) players with different symptomatic foot and ankle injuries using WB CBCT and to determine if any predominant morphotype would be identified.Study design
Cross-sectional study; Level of evidence, 3.Methods
A total of 45 active NBA players (mean age, 24.4 years [range, 20-34 years]; N = 54 feet [29 right, 25 left]) were assessed using WB CBCT. Measurements included the following: (1) foot and ankle offset (FAO), (2) calcaneal offset (CO), (3) hindfoot alignment angle (HAA), (4) angle between the inferior and superior facets of the talus (Inftal-Suptal), (5) angle between the inferior facet of the talus and the horizontal floor line (Inftal-Hor), (6) forefoot arch angle (FAA), (7) navicular-to-floor distance, and (8) medial cuneiform-to-floor distance. Measurements were then compared with values available in the literature for a "normal" foot morphotype.Results
Among the 54 feet, the mean FAO was 0.48% (95% CI, -0.25% to 1.21%), the mean CO was 1.18 mm (95% CI, -0.50 to 2.87 mm), and the mean HAA was 1.42° (95% CI, -0.80° to 3.65°). The mean Inftal-Suptal angle was 5.31° (95% CI, 3.50°-7.12°), while the mean Inftal-Hor angle was 4.04° (95% CI, 2.56°-5.51°). The mean FAA was 15.84° (95% CI, 14.73°-16.92°), the mean navicular-to-floor distance was 38.30 mm (95% CI, 36.19-40.42 mm), and the mean medial cuneiform-to-floor distance was 26.79 mm (95% CI, 25.30-28.28 mm). None of these values were found to be significantly different when comparing forwards, guards, and centers.Conclusion
NBA players presenting with symptomatic foot and ankle injuries had a fairly "normal" foot morphology, with a tendency toward a varus hindfoot and a high-arched morphotype. No significant differences were found between players based on their position on the court. WB CBCT may help to shed light on anatomic risk factors for common injuries in professional players and may aid in the planning of specific prevention programs.Item Open Access Reconstruction of the Peroneus Brevis Tendon Tears with Semitendinosus Tendon Autograft.(Case reports in orthopedics, 2019-01) Nishikawa, Danilo Ryuko Cândido; Duarte, Fernando Aires; Saito, Guilherme Honda; de Cesar Netto, Cesar; Monteiro, Augusto César; Prado, Marcelo Pires; de Sousa, Ivan Furlan GravaPeroneal tendon disorders are common causes of lateral and retromalleolar ankle pain. For irreparable tears of the tendon, a salvage procedure is indicated with segmental resection followed by reconstruction with tenodesis, tendon transfer, or bridging the defect using allograft or autograft. Although there is insufficient evidence to guide which of these treatment options provides the best outcomes, reconstruction with tendon allograft has provided satisfactory clinical results and is effective for pain relief and restoration of tendon function. However, there are concerns about the use of tendon allografts which include its cost and availability, disease transmission, delayed incorporation, and stretching of the graft. The aim of this study is to present the surgical technique for the reconstruction of the peroneus brevis tendon tears using semitendinosus tendon autograft as an alternative to the allograft and report the short-term results of three cases.