Insufficient consensus regarding circle size and bone loss width using the ratio-"best fit circle"-method even with three-dimensional computed tomography.

CONCLUSION: The ratio method varies in all glenoid parameters and is not valid for consistently quantifying glenoid bone defects even in 3D computed tomography. This must be taken into consideration when determining proper surgical treatment. The degree of glenoid bone loss alone should not be used to decide for or against a bony procedure. Rather, it is more important to define a defect size as "critical" and to also take other patient-specific factors into consideration so that the best treatment option can be undertaken. Application of the "best fitting circle" is a source of error when using the ratio method; therefore, care should be taken when measuring the circle diameter. LEVEL OF EVIDENCE: III. PMID: 30725122 [PubMed - as supplied by publisher]
Source: Hand Surgery - Category: Surgery Authors: Tags: Knee Surg Sports Traumatol Arthrosc Source Type: research