TRI-LOCK® Bone Preservation Stem

The original TRI-LOCK Stem was introduced in 1981. This implant was the first proximally coated tapered-wedge hip stem available to orthopaedic surgeons and their patients. Since its introduction, the original TRI-LOCK Stem has demonstrated 95% survivorship
at 10 years.1,2,3,4

The reduced lateral shoulder, thin geometry and optimised length of the TRI-LOCK Bone Preservation Stem are designed to reduce the amount of bone removed from the patient. These same features, along with approach enabling instrumentation, allow the surgeon to perform minimally invasive techniques.

TRI-LOCK Bone Preservation Stem

Features & Benefits

  • image of single TRI-LOCK Bone Preservation Stem

    Extensive Size Range

    The TRI-LOCK BPS System features 13 stem sizes which allows surgeons to address a wide range of patient anatomies. Consistent intervals between each stem size help achieve proper fit within the femur.

  • close up of GRIPTION™ Porous Coating

    GRIPTION™ Porous Coating

    GRIPTION Porous Coating is specifically engineered to maintain mechanical integrity under shear, compression, torsion and tension force. This advanced, three-dimensional fixation is designed to enhance initial stability, which may lead to long-term biological fixation.5

  • TRI-LOCK BPS Dual Offset options

    Direct Lateralization

    The TRI-LOCK BPS Dual Offset options provide surgeons the ability to lateralize by 6mm-8mm to help manage soft tissue laxity. This direct lateralization can enable femoral offset restoration without affecting leg length.

  • image of the stem preserving more bone in the patient’s leg

    Bone Preserving

    The reduced lateral shoulder, thin geometry and optimized length compared to the original TRI-LOCK Stem reduces the amount of bone removed from the patient.

  • Tri-Lock_logo

Supporting Documentation



1. Burt CF et al. A Femoral Component Inserted without Cement in Total Hip Arthroplasty. A Study of the TRI-LOCK Component with an Average Ten Year Duration of Followup. J. Bone Joint Surg. 1998; 80-A:952-60.
2. Purtill JJ et al. Total Hip Arthroplasty Using Two Different Cementless Tapered Stems. Clinical Orthopaedics and Related Research. 2001; 393:121-127.
3. Teloken MA et al. Ten to Fifteen Year Follow-up After Total Hip Arthroplasty with a Tapered Cobalt-Chromium Femoral Component (TRI-LOCK) Inserted without Cement. Bone Joint Surg. 2002; 84-A:2140-2144.
4. Sakalkale DP et al. Minimum 10 Year Results of a Tapered Cementless Hip Replacement. Clinical Orthopaedics and Related Research. 1999; 362:138-144.
5. Jasty M at al. In Vivo Skeletal Responses to Porous-Surfaced Implants Subjected to Small Induced Motions. J Bone Joint Surg Am. 1997; 79(5):707-714.

Indication Statement

For product details such as indications, contraindications, warnings and precautions please consult the IFU.