Captiv hip prothesis

Captiv hip prothesis

Hemi and total hip arthroplasties are indicated for the treatment of symptomatic pain and/or functional problems of the hip in patients whose skeleton is mature and only when pain killermedication and correctly followed conservative treatment have failed. For the patient, his anatomy and the structure of his articulation will need to be adapted to receive the selected implant(s). The indications for total or partial hip arthroplasty are:

• Degenerative non inflammatory hip disease (coxarthrosis, arthritis of the hip).
• Inflammatory hip disease (rheumatoid arthritis, post traumatic arthritis).
• Metabolic hip disease (chondrocalcinosis).
• Post Traumatic degenerative arthritis.
• Avascular necrosis.
• Congenital dysplasia of the hip.
• Functional repair of a recent trauma (fracture, dislocation)
• Revision of a failed conservative surgery, osteosynthesis, partial or total arthroplasty.
• Tumoral surgery when affecting the hip joint.

In primary surgery of the hip joint, and even more in revision or tumoral surgery, the quality of the bone stock and the bone defects due to the ablation of any previously implanted material can compromise the primary fixation of the implantable device and thus limit its indications. Depending on the location and the extension of the bone defect, a longer cemented or cementless femoral component including a variety of complementary fixation means or an acetabular component including peripheral flanges and hooks can be considered.

Arthroplasty of the hip can be contra-indicated in cases of local or systemic infection, mental deficiency, neuromuscular afflictions, neurologic or vascular affections, patients addicted to alcohol or psychotropic drugs, excessive medication, excessive functional use (sport with prevalent risk of fall orwith excessive functional expectations beyond the limits of the mechanical resistance of the prosthesis), overweight, insufficient bone stock, weak demineralized bone impeding a good prosthetic fixation, or severe extra articular deformation.