当前位置： SCI文献检索 > ANNALS OF THE RHEUMATIC DISEASES期刊下所有文献 > Poor accuracy and interobserver reliability of knee arthroscopy measurements are improved by the use of variable angle elongated probes.

Poor accuracy and interobserver reliability of knee arthroscopy measurements are improved by the use of variable angle elongated probes.

Abstract：

OBJECTIVES:(a)To determine the accuracy and reliability of arthroscopic measurements of cartilage lesion diameter in an artificial right knee model; (b) to determine whether the use of a set of variable angle elongated probes improves performance; and (c) to identify other sources of variability. METHODS:Ovoid "lesions" were drawn on the five cartilage surfaces of four plastic knees models. Two observers assessed these 20 lesions arthroscopically, measuring two diameters in orientations parallel and orthogonal to the probe. Observer 1 (orthopaedic surgeon) and observer 2 (arthroscopic rheumatologist) made two sets of measurements, firstly with the conventional probe and five months later with the variable angle elongated (VAE) probes. The knees were disarticulated to determine true lesion diameter. RESULTS:Observer 1 had negligible bias and good accuracy regardless of orientation or probe type. Observer 2 demonstrated both bias and poor accuracy using the conventional probe. Both improved using VAE probes. Poor interobserver reliability with conventional probes also improved using VAE probes. Major sources of variability could be traced to the probe type, the characteristics of the operator, and the orientation of the lesion in relation to the probe; the lesion location itself did not cause variability. CONCLUSIONS:Variation in accuracy and poor interobserver reliability of measurements with conventional methods of cartilage lesion diameter measurement improved when specially designed measurement probes were used. Arthroscopic measurements performed as well as most clinical and radiographic measures. These findings have important implications for the use of arthroscopy as an outcome in multicentre trials where arthroscopists have different levels of experience.

journal_name

Ann Rheum Dis

journal_title

Annals of the rheumatic diseases

authors

Oakley SP,Portek I,Szomor Z,Turnbull A,Murrell GA,Kirkham BW,Lassere MN

doi

10.1136/ard.61.6.540

subject

Has Abstract

pub_date

2002-06-01 00:00:00

pages

540-3

issue

eissn

0003-4967

issn

1468-2060

journal_volume

pub_type

杂志文章

在线工具

Poor accuracy and interobserver reliability of knee arthroscopy measurements are improved by the use of variable angle elongated probes.