Syringe shoulder adapters, injection systems and methods for assembling and using the syringe shoulder adapter and injection system are disclosed. The syringe shoulder adapter including a housing with a first end and a second end opposite the first end. The housing including a cavity defined by an exterior surface between the first end and the second end and a first slot positioned near the second end of the housing and extending into the cavity. The injection system including a shoulder adapter, a syringe positioned within the shoulder adapter, and an injector coupled to the shoulder adapter. Methods of assembling and using the injection system are also disclosed.
