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- W3031487788 abstract "ObjectiveTo study the effect of Ilizarov technique on thumb shortening and bone defect after trauma.MethodsThe clinical data of 20 patients with thumb shortening or bone defect treated by Ilizarov technique from April 2010 to January 2018 were retrospectively analyzed. There were 19 males and 1 female including 15 left fingers and 5 right fingers. The age ranged from 20 to 56 years, with an average of 33.1 years. The osteotomy plane included 9 cases at distal part of the metacarpal, 6 cases proximal phalanx base, 1 case interphalangeal joint and 1 case distal part of proximal phalanx. Two cases were osteomyelitis after proximal and distal phalanges trauma, which resulted in interphalangeal joint defects after lesion clearance, and the length of the joint defect was 0.5 cm and 0.7 cm respectively. One case was emergency finger shortening fusion, which resulted in metacar-pophalangeal joint defect due to nonunion of fusion site, and the length of the joint defect was 0.5 cm. Causes of injury included mechanical strangulation (12 cases), crush injury (6 cases) and traffic injury (2 cases). Semi-ring external fixator was used to extend the extension. There were 15 cases of metacarpal bone osteotomy and 5 cases of proximal phalanx osteotomy, prolonged from the 5th day after surgery. The osteotomy was prolonged by 0.5 mm every day, once every 6 hours.ResultsThe follow-up time ranged from 184 to 446 days with an average of 244.6 days. The average extension period was 62.2 days (26-118 days), and the average extension length was 3.1 cm (1.3-5.9 cm). The healing index was 43.7-84.1 d/cm and the average healing index was 64.8 d/cm. The external fixed extender was used for 114-376 days with an average of 206.3 days. The distraction index was 20.1 d/cm (range, 19.5-21.4 d/cm) and the maturity index was 46.5 d/cm (range, 39.4-110.1 d/cm) and the external fixation index was 66.5 d/cm (range, 60-130.8 d/cm). The finger pointing function and sensory function of thumb were restored after operation. According to the trial criteria of thumb and finger reconstruction function evaluation in the upper limb part evaluation criteria of Hand Surgery Society of Chinese Medical Association, 11 cases were excellent, 9 cases good, and the excellent and good rate was 100%(20/20). The two-point discrimination was 4-9 mm. The patients were satisfied with the function and appearance.ConclusionIlizarov technique is a good method to treat thumb shortening and bone defect after trauma.Key words: Thumb; extension; Ilizarov technique; External fixators" @default.
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- W3031487788 date "2019-01-01" @default.
- W3031487788 modified "2023-09-26" @default.
- W3031487788 title "Application of Ilizarov technique for thumb shortening or bone defects after trauma" @default.
- W3031487788 doi "https://doi.org/10.3760/cma.j.issn.0253-2352.2019.01.008" @default.
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