Comparison of MRI and wrist arthroscopy for assessment of wrist cartilage.

In order to perform motion-preserving procedures for wrist arthritis rather than total joint fusion, it is important to determine the integrity of specific areas of wrist cartilage. This is generally performed using a wrist arthroscope and by directly visualising the cartilage. Twenty patients with wrist pain were investigated over a 1-year period with both MRI and wrist arthroscopy. Kappa analysis was used to compare the two methods of cartilage assessment. There is only a fair correlation (K = 0.38) between the two methods. With only a fair correlation between arthroscopy and MRI, it cannot be concluded that the two methods are equivalent for assessing wrist cartilage and, as such, wrist arthroscopy still has an important role to play in the assessment of a painful degenerative wrist.