Journal
ARTHROSCOPY-THE JOURNAL OF ARTHROSCOPIC AND RELATED SURGERY
Volume 37, Issue 8, Pages 2399-2408Publisher
W B SAUNDERS CO-ELSEVIER INC
DOI: 10.1016/j.arthro.2021.03.028
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Funding
- Exactech, Inc.
- Arthrex
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This study investigated the clinical and radiographic outcomes of arthroscopic iliac bone grafting with capsulolabral reconstruction for severe glenoid bone loss with a minimum of 5 years' follow-up. The results showed satisfactory outcomes with mid-term follow-up, with good graft integration and some shoulders demonstrating osteoarthritis changes.
Purpose: The purpose of this study was to investigate the clinical and radiographic outcomes of arthroscopic iliac bone grafting with capsulolabral reconstruction for severe glenoid bone loss with a minimum of 5 years' follow-up. Methods: The inclusion criterion was shoulders that underwent arthroscopic iliac bone grafting for >20%-25% glenoid defect between January 2007 and April 2014, and the exclusion criterion was <5 years' follow-up. Iliac crest bone grafts of approximately 2.0 cm length and 0.8 cm height were arthroscopically fixed to the anterior glenoid using 2 cannulated screws followed by capsulolabral repair. Rowe score, Western Ontario Shoulder Instability Index (WOSI), and passive range of motion were evaluated. Radiographic findings including the Kellgren and Lawrence osteoarthritis grade and graft integration on 3-dimensional computed tomography at the final follow-up were also evaluated. Results: Forty-eight shoulders met the inclusion criteria, and 24 shoulders with <= 5 years' follow-up were included (1 died; 23 were lost followup): 22 males, 2 females; a mean age at surgery, 30 years (range, 18-52 years); a mean follow-up of 8 years (range, 5-11 years). The mean preoperative glenoid bone defect was 22% (range, 20%-28%). All shoulders had a Hill-Sachs lesion including 4 on-track lesions. One shoulder experienced traumatic redislocation at 5 years after surgery. The scores significantly improved: Rowe score, 19 +/- 8 to 94 +/- 8 (P<.001); WOSI, 1547 +/- 241 to 439 +/- 318 (P<.001). Postoperative flexion showed significant improvement from 158 +/- 18 to 169 +/- 11 (P=.008), whereas internal rotation deteriorated from T8 +/- 3 to T10 +/- 3 (P=.005). Graft integration showed remodeling in 54% and excessive absorption in 13%. Osteoarthritis grades progressed significantly (P<.001), but only grade 1 osteoarthritic changes were seen, except for 4 shoulders with grade 2 osteoarthritis. Conclusions: Arthroscopic iliac bone grafting for traumatic anterior shoulder instability with severe glenoid bone loss yielded satisfactory outcomes with mid-term follow-up. Arthritic changes progressed in half of the shoulders; however, most shoulders only demonstrated grade 1 osteoarthritis.
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