Application value of high-frequency ultrasound in diagnosis of finger extensor tendon olisthy / 中国医学影像技术

ABSTRACT

Objective: To explore the application value of high-frequency ultrasound in diagnosis of finger extensor tendon olisthy. Methods: A total of 32 dorsal trauma in metacarpophalangeal joint patients with clinically suspected finger extensor tendon olisthy underwent high-frequency ultrasound. Olisthy in finger extensor tendon and causes of injuries were observed, and the results were compared with those of surgical operations. Results: Among all 32 cases, surgery treatment was performed in 25 patients, including 7 patients of partial olisthy in extensor tendon and 18 patients of complete olisthy, while 7 patients were found without olisthy (only tendon hood injury) and were followed up for observation. Utrasound missed 1 case with complete olisthy in finger extensor tendon and misdiagnosed 2 cases of complete olisthy as partial olisthy. The consistency of ultrasound examination and surgery results was well (Kappa=0.85, P<0.01). Conclusion: Ultrasound can show tendon hood tear and finger extensor tendon olisthy and judge the injury degree through dynamic observation, therefore providing important evidences for clinical treatment.