A surgical instrument comprises a first member including an inner surface defining a passageway and a lock. A second member is disposable within the first passageway. The second member comprises an inner surface defining a passageway and extending between a first end comprising a lock and a second end configured to engage tissue. A third member is disposable within the second passageway. The third member extends between a first end and a second end configured to penetrate tissue and form a cavity therein. The first lock is engageable with the second member to prevent relative movement of the second member and the second lock is engageable with the third member to prevent relative movement of the third member. Systems and methods are disclosed.
