Preoperative Analysis of the Hill-Sachs Lesion in Anterior Shoulder Instability

Abstract

On CT with 3D reconstruction images, the engaging Hill-Sachs lesions were larger in size and more horizontally oriented to the humeral shaft than nonengaging lesions. The authors concluded that preoperative prediction of the engagement of the Hill-Sachs lesion, based on these findings, would be useful in planning additional procedures to treat a significant bone defect on the humeral head.

Preoperative Imaging of Anterior Shoulder Instability: Diagnostic Effectiveness of MDCT Arthrography and Comparison With MR Arthrography and Arthroscopy

“…Recurrence of dislocation is the most frequent complication, observed in 80-90% of patients [11,22]. When clinically indicated, the surgical treatment of anterior shoulder instability largely depends on the severity of bone and soft-tissue injuries found on preoperative imaging [1,2]. Although MR arthrography is considered the reference standard for shoulder imaging, MDCT arthrography could also provide a valuable preoperative assessment, given its excellent spatial resolution, multiplanar capacity, and high contrast resolution [11].…”

Current concepts in the management of recurrent anterior gleno-humeral joint instability with bone loss

“…In a study of 104 patients 3D-CT was used to evaluate the parameters of the humeral Hill-Sachs defect. The use of CT with 3D reconstructions was able to accurately ascertain the size, shape and location of the defect and thereby can be predictive of humeral Hill-Sachs engagement [35] . Chen et al [36] reported that the degree of humeral bone loss can be reliably calculated by dividing the area of impaction by the total arc of the articular surface.…”

Hill-Sachs lesion is not a significant prognostic factor for recurrence of shoulder redislocation after arthroscopic Bankart repair

“…For example, Cetik et al 53 reported that the width of HSs increased with the number of dislocations and subluxations, but not their length and depth, while Voos et al 8 observed that the average volume of the HS was significantly larger in the group of patients with recurrent instability than in those without; and other authors tried to relate humeral bone loss with recurrence rate to define the concept of ‘critical defect size’ 8 51 54–56…”