Trilogy fiber mesh shells

The original surgical instruments were used for insertion of the cementless Bi-Metric femoral stems (Zimmer Biomet, USA). The upper part of the toothed broaches had a diamond-shaped surface, and the distal half had a smooth surface. The tamps used for compaction of the femoral bone cavity had a smooth surface. For each of the broach sizes, the corresponding tamp size was of the same volume but without the rough proximal area.^{10 (link)}
Cementless Bi-Metric stems without hydroxyapatite (HA) coating (Zimmer Biomet) and 28 mm chrome-cobalt femoral heads were used for all patients in this study. On the acetabular side, six patients received cementless Trilogy Fiber-mesh shells and Trilogy ultra-high-molecular-weight polyethylene (UHMWPE) 10° elevated rim liners (Zimmer Biomet), six patients received cementless HA-coated Trilogy Fiber-mesh shells and Trilogy UHMWPE 10° elevated rim liners (Zimmer Biomet), and eight patients received Longevity highly crosslinked 10° elevated rim liners (Zimmer Biomet). All patients were allowed ambulation with 40 kg of weightbearing (aided by crutches) for the first six weeks after surgery, and thereafter full weightbearing was allowed.

1 experienced orthopedic hip surgeon (PHC) undertook the operations using a posterolateral approach. The decision to perform a cementless procedure was based on the inclusion criteria and an intraoperative clinical assessment by the experienced hip surgeon that the bone quality was satisfactory for a cementless procedure. All patients received cementless Bi-Metric stems without HA coating (Biomet Inc., Warsaw, IN) and 28-mm chrome-cobalt femoral heads.
On the acetabular side, 6 patients received cementless Trilogy fiber-mesh shells and Trilogy ultra-high-molecular-weight polyethylene (UHMWPE) 10° elevated rim liners (Zimmer Inc., Warsaw, IN), 6 patients received cementless HA-coated Trilogy fiber-mesh shells and Trilogy UHMWPE 10° elevated rim liners (Zimmer), and 8 patients received Longevity highly crosslinked 10° elevated rim liners (Zimmer). All patients were instructed to walk with 40 kg of weight bearing (aided by crutches) for the first 6 weeks after surgery, and full weight bearing was allowed thereafter.