Characteristics :

• Standard or lateralised, collared or collarless version.
• Cemented or cementless versions, with or without support.
• CCD angle of 130°.
• A 11/13 (4°) taper which needs to be combined with SERF “SI” or “SD” heads with the same 11/13 taper.

Materials :

• Cementless stems: titanium alloy and HAP
• Cemented stems: fully polished high-nitrogen stainless steel.
• Femoral heads: “SI” made from stainless steel or “SD” made from Biolox^® delta ceramic.

• An unique instrumentation
• A wide choice of broach handles for the different approaches : posterior, posterolateral, anterior and anterolateral.

The Libra^® stem range is indicated in the following cases:

• Primary or secondary osteoarthritis.
• Advanced joint destruction resulting from rheumatoid or post-traumatic arthritis.
• Fracture or avascular necrosis.
• Following previous surgery, including hip arthroplasty.
• Libra^® implants are mainly indicated in the case of primary or secondary osteoarthritis, displaced subcapital and transcervical fracture and Paprosky type I to IIB bone defects.

Contraindications of the Libra^® stem range are as follows:

• Acute or chronic local or systemic infection (cardiopathy, decompensated diabetes, continuous haemodialysis, reduced immune response, etc.).
• Severe muscular, neurological or vascular deficiencies affecting the extremity concerned.
• Bone destruction or loss, or poor bone quality likely to affect implant stability, severe osteoporosis, major deformity of the joint to be replaced, local bone tumours.
• All related conditions which could compromise the function or implanting of the prosthesis.
• Systemic or metabolic disorders,
• Mental incapacity of patients to understand the surgeon’s instructions,
• Drug addiction, alcohol, tobacco or medicine abuse,
• Local bone tumours,
• Obesity, excess weight, high level of physical activity, intense exercise, after a fall.

LIBRA Stems Surgical Technique