Hill-Sachs Lesion on MR Arthrography of the Shoulder: Relationship with Bankart Lesion on Arthroscopy and Frequency of Shoulder Dislocations.
10.13104/jksmrm.2013.17.1.26
- Author:
Ji Na KIM
1
;
Min Hee LEE
;
Joong Mo AHN
Author Information
1. Department of Radiology, Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine, Seoul, Korea. mhlee625@gmail.com
- Publication Type:Original Article
- Keywords:
Shoulder;
MR arthrography;
Trauma;
Hill-Sachs lesion;
Bankart lesion
- MeSH:
Arthrography;
Arthroscopy;
Dislocations;
Humans;
Shoulder;
Shoulder Dislocation
- From:Journal of the Korean Society of Magnetic Resonance in Medicine
2013;17(1):26-32
- CountryRepublic of Korea
- Language:English
-
Abstract:
PURPOSE: This study was performed to evaluate the presence and severity of Hill-Sachs (HS) lesions on MR arthrography (MRA) of shoulder in patients with Bankart lesions following anterior dislocation and to investigate their relationship with Bankart lesions and frequency of dislocations. MATERIALS AND METHODS: 86 MRA of shoulder were evaluated in patients with arthroscopic Bankart repairs following anterior dislocations. The largest surface length of HS lesion on MRA and extent of Bankart lesions on arthroscopy were measured. Relationships between length of HS lesions and extent of Bankart lesions and frequency of dislocations were assessed. RESULTS: HS lesions were identified on MRA in 78 patients. The largest surface length of HS lesion ranged from 9.3 mm to 29.6 mm (mean, 18.8 mm). The extent of Bankart lesion ranged from one to six o'clock extent (mean, 4.25 o'clock extent). Three patients had single dislocation and the other 75 patients had recurrent dislocations (mean 24.5 times). The largest surface length of HS lesions was positively correlated with extent of Bankart lesions (p = 0.001, r = 0.37), but not with frequency of dislocation. CONCLUSION: HS lesion was very common in patients with Bankart lesion. The severity of HS lesions was correlated with extent of Bankart lesions.
