2023 ISAKOS Biennial Congress ePoster
Efficacy of Marrow-Stimulating Technique Through Nanofractures of the Greater Tuberosity in Arthroscopic Rotator Cuff Repair
Francesco De Filippo, MD, Brescia, Brescia ITALY
Marco Adriani, MD, Brescia, Brescia ITALY
Marcello Motta, MD, Brescia ITALY
Giuseppe Bertoni, MD, Brescia, Lombardia ITALY
Maristella Francesca Saccomanno, MD, PhD, Rome ITALY
Giuseppe Milano, Prof., Brescia, BS ITALY
university of Brescia, Brescia, ITALY
FDA Status Not Applicable
Summary
Recent studies on animal models suggested that nanofractures showed advantages in biomechanical, histological, and radiographic results compared to larger diameter microfractures; the aim of our study was to evaluate the clinical efficacy of biologic enhancement of tendon bone-healing through nanofractures of the greater tuberosity.
ePosters will be available shortly before Congress
Abstract
Background
Although it has been shown that microfractures of the greater tuberosity reduce re-tear rate after arthroscopic rotator cuff repair, recent studies on animal models suggested that nanofractures showed advantages in biomechanical, histological, and radiographic results compared to larger diameter microfractures.
Methods
A retrospective study was conducted. Patients who underwent an arthroscopic rotator cuff repair associated with nanofractures of the greater tuberosity instead of cortical abrasion were included. Exclusion criteria were: partial thickness tears, irreparable tears, capsulo-labral pathologies, calcific tendonitis, gleno-humeral osteoarthritis and/or previous surgery. Primary outcome was the ASES score. Secondary outcomes were: Quick-DASH, WORC and evaluation of tendon integrity through a magnetic resonance imaging (MRI) performed six months after surgery. A paired t-test was used to compare pre and postoperative outcomes. A subgroup analysis for tear size was also conducted. Significance was set at p < 0.05.
Results
The study included 20 males and 9 females. Mean age (+ SD) of patients was 61 + 6.9 years. Mean follow-up was 31.5 + 10.9. Comparison between pre- and postoperative functional scores showed significant clinical improvement (p < 0.001). Subgroup analysis for tear size showed no differences nor in functional outcomes, neither in structural integrity. Postoperative imaging showed healed tendons in 25 out of 29 (86.2%) MRI.
Conclusions
Nanofractures of the greater tuberosity enhances functional and structural outcome after rotator cuff repair.