Abstract
BackgroundThe purpose of this study is to investigate the presence or absence, incidence, and degree of extensor pollicis longus (EPL) tendon injury by visual confirmation of the EPL at the time of osteosynthesis for distal radius fractures. MethodsThe subjects were 25 patients (5 males and 20 females; mean age: 56 years) with distal radius fracture that had a dorsal roof fragment. During osteosynthesis using a volar locking plate, the third compartment was exposed in order to determine the EPL injury. The survey items in this study were: incidences of the forms of EPL injury (1: absent, 2: tendon floor fibrillation, and 3: laceration), and the presence or absence of periosteal rupture on the EPL tendon floor. In addition, on the final follow-up, the presence or absence of EPL rupture, the range of wrist motion, grip strength, Visual Analog Scale (VAS) score, Quick Disabilities of the Arm, Shoulder and Hand (Q-DASH) score, and the Mayo wrist score were investigated. ResultsDuring the operation, EPL injury was classified as: 1) absent (12%), 2) tendon floor fibrillation (52%), or 3) laceration (36%). In the EPL tendon floor, periosteal rupture was observed in all patients. The mean postoperative follow-up period was 8 months (6–12 months) and no EPL rupture was observed in any patient. The wrist range of motion was 71° for flexion, 75° for extension, 84° for pronation, and 85° for supination, and the grip (% compared with the unaffected side) was 79%. The VAS, Q-DASH and Mayo scores were 1, 10 and 93 respectively. ConclusionThis study showed a high incidence of EPL tendon injury at the time of distal radius fractures (88%). To improve the ambient environment of the damaged tendon may be useful in terms of the prevention of tendon injury.
Published Version
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