A standard muscle hook has been cannulated along its horizontal arm to accept a heavy, braided, silk ligature. The external configuration of the hook is unchanged by the cannulization, and its use greatly facilitates the isolation of the rectus muscles and their control during retinal separation surgery.
Sudarsky RD. A Cannulated Muscle Hook: Its Use in Retinal Separation Surgery. Arch Ophthalmol. 1974;92(5):449. doi:10.1001/archopht.1974.01010010461019
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