Can Suprascapular Venous Engorgement with a Paralabral Cyst in the Shoulder Aid the Diagnosis of Suprascapular Neuropathy?: A Cohort Study of Level of Evidence III
10.5763/kjsm.2023.41.4.201
- Author:
Jinho LEE
1
;
Jin-Young PARK
;
Hong-Keun PARK
;
Tae-sup KIM
Author Information
1. Department of Orthopedic Surgery, The Jain Hospital, Goyang, Korea
- Publication Type:Clinical Article
- From:The Korean Journal of Sports Medicine
2023;41(4):201-206
- CountryRepublic of Korea
- Language:English
-
Abstract:
Purpose:Suprascapular neuropathy can be caused by a solid mass, transverse scapular ligament hypertrophy, paralabral cyst, or dilatation of a suprascapular vein. Studies have measured the size of the cyst and veins using magnetic resonance imaging (MRI) to aid diagnosis of suprascapular neuropathy. However, it is often difficult to determine the size of a cyst and vein. we measured cyst and vein size as potential diagnostic markers for suprascapular neuropathy.
Methods:This study retrospectively enrolled 118 patients diagnosed with a paralabral cyst in a clinic from January 2016 to December 2019. After excluding other neuropathies and cysts not related to the course of the suprascapular nerve, a total of 67 patients were analyzed. The cyst diameter, cyst volume, and vein diameter were measured engorgement by MRI in axial, coronal, and sagittal T2-weighted images. Cutoff values were established based on Youden’s index.
Results:There was no significant difference between the neuropathy and control groups in cyst coronal diameter, but the neuropathy group had greater sagittal (p=0.001), axial (p=0.001), and maximum cyst diameters (p=0.005), cyst volume (p=0.003), and coronal (p=0.002), axial (p=0.001), and maximum vein diameters (p=0.001).
Conclusion:In suprascapular neuropathy symptomatic patients, electromyographyerve conduction velocity tests are eventually needed when in doubt. However, measuring cyst diameter, volume, and suprascapular vein diameter as a screening test could be considered.
