Condon Finbarr, Kaliszer Michael, Conhyea Dyanane, O' Donnell Turlough, Shaju Anthony, Masterson Eric
Regional Orthopaedic Hospital, Croom, Co Limerick, Republic of Ireland.
Foot Ankle Int. 2002 Aug;23(8):717-21. doi: 10.1177/107110070202300807.
In view of the importance placed on the first intermetatarsal angle in the assessment of surgical intervention in hallux valgus, we assessed the reliability with which one measures this angle. The study involved 10 observers of varying experience measuring the angle using a standard technique on 10 weightbearing AP X-rays of the foot on three separate occasions. The margin of error in measuring the angle was +/-3.60 degrees with a 95% confidence interval. Increasing and averaging the number of readings per observer or the readings of a number of observers, reduces the error. Experience doesn't improve reliability. In conclusion, improvement in the reliability of the measurements can be achieved by careful technique, performing the measurements at least twice, and averaging them.
鉴于第一跖骨间角在拇外翻手术干预评估中的重要性，我们评估了测量该角度的可靠性。该研究让10名经验各异的观察者，在三个不同时间，使用标准技术在10张足部负重前后位X线片上测量该角度。测量角度的误差范围为±3.60度，置信区间为95%。增加并平均每个观察者的读数数量或多个观察者的读数，可以减少误差。经验并不能提高可靠性。总之，通过采用仔细的技术、至少进行两次测量并求平均值，可以提高测量的可靠性。
