Final answer:
Traction sutures are utilized in medical procedures involving common duct explorations to keep the duct open for examination or treatment.
Step-by-step explanation:
Traction sutures are used on common duct explorations to hold the duct open. Their primary purpose is not to ligate or permanently close the duct, nor are they used to seal stones inside the duct. Instead, these sutures are placed to provide access and stability during procedures that examine or treat the duct, facilitating the removal of stones or other blockages and allowing for proper healing post-operation.