Background In 1975, King Chulalongkorn Memorial Hospital (KCMH) in Bangkok, Thailand, published data on common orthopedic problems in neonates. Objectives To determine the more recent incidence of these conditions and to compare the results with those reported 40 years ago by KCMH. The data were also compared with a recent report from Siriraj Hospital. Methods We reviewed medical records of newborn infants from 2012 to 2016, all of whom were born in KCMH with deformities of upper and lower extremities or other birth-related injuries. The cases were grouped according to International Classification of Diseases, 10th edition. The incidence of common neonatal orthopedic problems was calculated as cases per 1,000 live births and compared, using a chi-squared test, with the earlier data from KCMH and with the data recently reported by Siriraj hospital. Results Of the 24,825 live births, 54% were male and 46% were female. The average birth weight was 3,052.2 ± 516.1 g (range, 535–5,320 g) for infants. The most common deformity was postural clubfoot, followed by calcaneovalgus and hip dysplasia, with incidences of 1.37, 0.93 and 0.52 per 1,000 live births, respectively. The incidence of calcaneovalgus, metatarsus adductus, and clubfoot was lower than in the 1975 study and in the report from Siriraj. In all 3 studies, the incidence of birth-related injury was similar and clavicular fracture was the most common, with a rate of 1.3/1,000 live births. Conclusion The incidence of common neonatal orthopedic problems varies among institutions. Birth-related injury is a major challenge. The results may be utilized as updated data and as a starting point for parental education.
Purpose Surgery for idiopathic clubfoot, though limited in indications, should be performed by a selective soft tissue release. Aims of the study were to evaluate the pedobarography and ankle kinematics of the clubfoot post-surgery and compare with controls. Methods Twenty-two patients (33 clubfeet) and 22 normal children (44 feet) were enrolled into the cross-sectional study. Demographic data were recorded. Plantar force measurements and ankle kinematic data were obtained and compared between clubfoot patients and controls by pedobarography and 3-dimensional gait analysis. Results Clubfoot patients were operated at an average age of 12.8 ± 8.1 months. The average follow-up was 9.9 ± 3.9 years. Demographic data were comparable between the two groups. The plantar force in clubfoot patients was significantly lower than controls (108.2 ± 86.7 vs. 150.9 ± 73.9 N, p = 0.03). Clubfoot patients demonstrated a longer contact time, larger contact area, lower peak pressure, and force relative to body weight in toe, midfoot, and heel areas. The impulse was comparable between the two groups but the contact area, force, and force time integral concentrated at the midfoot region of the clubfoot. The ankle kinematics in clubfoot patients demonstrated a dorsiflexed position through late toe off. Range of dorsiflexion in the clubfoot was significantly higher than in controls. Foot adduction during stance, limited inversion-eversion, and limited plantar flexion during loading response and toe off were observed. ConclusionThe results underscore the importance of limited soft tissue release during clubfoot surgery. Although the procedure could preserve range of motion at the ankle joint, muscle weakness and flatfoot deformity are prevalent.
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