Additional Scapular Spine Bone Grafting Combined with Bankart and Remplissage for Off-Track Hill–Sachs Lesions with Subcritical Glenoid Bone Loss: Provides Better Stability

Abstract

Purpose: Arthroscopic Bankart repair combined with remplissage and autologous scapular spine bone grafting have been described as a treatment for off-track Hill–Sachs lesions with subcritical glenoid bone defects in the anterior shoulder instability. However, whether these two techniques can achieve satisfactory postoperative outcomes is unclear, and there are few comparative studies between them. Therefore, this study compared the postoperative efficacy of the two techniques for off-track Hill–Sachs lesions with subcritical glenoid bone loss.

Method: Between June 2017 and December 2020, 62 patients with shoulder instability due to Off-Track Hill–Sachs lesions with subcritical glenoid bone loss underwent surgical treatment and were included in this regression study. Thirty-two patients underwent arthroscopic Bankart repair combined with remplissage (B + R group), and 30 patients underwent additional autologous scapular glenoid bone grafting (additional bone grafting group). The general information of the patients was recorded. The patient’s activity before and after surgery was recorded. The DASH score and Constant–Murley (CM) score were used to assess the patient’s functional status; the Rowe score was used to evaluate the patient’s shoulder stability. The shoulder function and stability before and after surgery were analyzed and compared between the two groups.

Results: The final DASH scores of the B + R group and the additional bone grafting group were significantly lower than those before surgery, with a statistically significant difference (9.76 ± 4.32 vs. 27.89 ± 6.63, 8.50 ± 3.32 vs. 28.0 ± 4.27, p = 0.000); the final CM scores of the two groups were significantly higher than those before surgery (88.71 ± 3.74 vs. 73.68 ± 3.74, 87.16 ± 2.29 vs. 71.37 ± 2.68, p = 0.000). There was no statistical difference in the final DASH score and final CM score between the two groups (p > 0.05). In terms of postoperative stability, the final Rowe scores of the two groups were significantly higher than those before surgery, with a statistically significant difference (89.06 ± 9.19 vs. 41.71 ± 4.13; 93.16 ± 4.99 vs. 42.33 ± 2.53, p = 0.000). Compared with the control group, the additional bone graft group achieved higher final Rowe scores (93.16 ± 4.99 vs. 89.06 ± 9.19, p = 0.032).

Conclusion: For patients with anterior shoulder instability due to off-track Hill–Sachs lesions with subcritical glenoid bone loss, although Bankart and remplissage can achieve satisfactory clinical results, additional autogenous scapular spine bone grafting can provide better stability of the shoulder, especially for patients with high sports demands.

Keywords

Anterior Shoulder Instability / Off-Track Hill–Sachs Lesions / Scapular Spine Bone Grafting / Subcritical Glenoid Bone Loss

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RIGHTS & PERMISSIONS

2024 The Author(s). Orthopaedic Surgery published by Tianjin Hospital and John Wiley & Sons Australia, Ltd.