A small subset of posterior wall acetabular fracture dislocations are characterized by a thin bony piece that is difficult to stabilize with traditional plate and screw fixation methods. This injury is akin to a “Bankart” injury of the shoulder as it represents an avulsive capsulolabral bony fragment associated with joint dislocation. Re-dislocations with nonoperative treatment and dislocation after attempted fixation is catastrophic, particularly in younger patients. Spring plates, with or without a spanning posterior wall reconstruction plate, have traditionally been used over the past two decades for primary fixation of these injuries but the results seem suboptimal anecdotally. The spring plate serves as a buttress for the peri-articular bony piece, but its index and overall durability are questionable despite initial claims of its strength as a primary fixation method. Additionally, when the thin fragments degenerate, the spring plate subsequently articulates with the femoral head resulting further in rapid, destructive, and symptomatic arthritis. Double-row suture anchor repair over a plate has also been attempted by the senior author, but pulling the inside row sutures back to the outside row promotes dislodgement of the piece back towards the posterior column, thus compromising anatomic reduction and strength; especially when the hip socket is mechanically loaded during functional activity. This article describes a modernized technique for the unique injury pattern described above that utilizes knotless suture anchor technology in combination with a mini-fragment pelvic reconstruction plate. Knotless technique is ideal given the angst that comes with tying an anchor knot deep in a patient’s hip and the dissatisfaction that results when it is not at satisfactory tightness. This construct provides direct, circumferential fixation of the fracture fragment to resist posterior and superior hip dislocation forces by anatomic reduction and excellent stability of the posterior wall fragment and its capsulolabral attachment.