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Accurate bone-block positioning seen with arthroscopic Latarjet procedure
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Results from this study demonstrated arthroscopic Latarjet procedure surgery is safe compared with open surgery and the procedure can allow for accurate positioning of the bone block.
Researchers prospectively evaluated 105 shoulders in 104 patients that underwent arthroscopic Latarjet procedures. Investigators evaluated the patients the day after surgery with multiplanar bi-dimensional CT scan analysis. The learning curve of the procedure was evaluated by comparing the initial 30 procedures to the final 30 procedures with an interval of 45 procedures between these groups. The final analysis included 95 shoulders.
Results showed 87 of the 95 shoulders had accurate bone-block positioning on the glenoid as evidenced by sagittal-oblique and coronal-oblique views. Using the circle coronal-oblique global evaluation, investigators found 70 out of the 95 shoulders were accurately positioned.
In seven shoulders, the procedure was performed in the lateralized position, with 11 shoulders in the medialized position. Investigators noted the mean angle from the upper screw to the glenoid surface was 21°.
Revision was required in three of the 105 initial shoulders. There was one case with a transient axillary nerve palsy. The accuracy of bone-block positioning was significantly predicted by the screw-glenoid surface angle, according to an analysis of the result. According to the learning curve estimates, the last period compared with the initial period had a decreased average surgical time and the lateralization risk significantly decreased. ‒ by Monica Jaramillo
Disclosures: Kany reports support from Mitek and Tornier, and royalties from FH orthopedics (Arrow system designer). Please see the full study for a list of all other authors’ relevant financial disclosures.
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