Arthroplasty IFU documents available for download Arthroplasty Multi-language IFU Document.
Arthroplasty is an operative procedure of orthopaedic surgery performed to replace arthritic or dysfunctional joint surfaces with something better, or for remodeling or realigning the joint by osteotomy or some other procedure.
Indications for Arthroplasty include:
- Osteoarthritis (OA)
- Rheumatoid arthritis (RA)
- Avascular necrosis (AVN) or osteonecrosis (ON)
- Congenital dislocation of the hip joint (CDH)
- Acetabular dysplasia (shallow hip socket)
- Frozen shoulder, loose shoulder
- Traumatized and malaligned joint
- Joint stiffness
Hemi-arthroplasty is a surgical procedure which replaces one half of the joint with an artificial surface and leaves the other part in its natural (pre-operative) state. This class of procedure is most commonly performed on the hip after fracturing the neck of the femur (hip fracture) or the shoulder, after damaging the humeral head. The procedure is performed by removing the fractured head of the femur/humeral and replacing it with a metal or composite prosthesis.
Hip Systems
The hip is essentially a ball and socket joint linking the “ball” at the head of the thigh bone (femur) with the cup-shaped “socket” in the pelvic bone. A total hip prosthesis is surgically implanted to replace the damaged bone within the hip joint.
The total hip prosthesis consists of three parts:
- A cup that replaces your hip socket, the cup is usually plastic, although some centres are trying other materials like ceramic and metal.
- A metal or ceramic ball that will replace the fractured head of the femur.
- A metal stem that is attached to the shaft of the bone to add stability to the prosthesis. If the surgery is a “hemi-arthroplasty” the only bone replaced with a prosthetic device is the head of the femur.
Indications
Hip joint replacement is primarily done in people age 60 and older. The operation is usually not recommended for younger people because of the strain they can put on the artificial hip, causing it to fail prematurely.
The reasons for replacing the hip joint include:
- Severe pain from arthritis in the hip that limits an individual’s ability to do the things they want to do
- Fractures in the elderly of the neck of the femur (usually requires a hemi-arthroplasty)
- Hip joint tumours
This surgery is usually not recommended for:
- Very young patients
- Current hip infection
- People with poor skin coverage around the hip
- Paralysed quadriceps muscles
- Nerve disease affecting the hip
- Patients with severely limiting mental dysfunction
- Serious physical disease (terminal disease, such as metastatic cancer)
- Extreme obesity (weight over 300 pounds)
Hip Stem Ancillaries
Revision Systems
Bi-Polar
Acetabular Systems
Acetabular Poly Cups
Femoral Heads
Bi-Spherical Acetabular Cups
Al. Ox Tribol™ Ceramic Inserts
Total Knee System
Anatomical Total Knee System SLK Evo™ IFU document available for download QP-08-49 ENG.
Total Knee replacement, or arthroplasty of the knee, is a commonly performed operation done to relieve the pain and disability from rheumatoid arthritis or more often osteoarthritis of the knee.
Arthritis of the knees can be mechanical (osteoarthritis) in which the surfaces of the knee gradually “wear out”. This may be due to either old age, angular deformity, or old fractures. Systemic arthritis such as rheumatoid arthritis or gout, affects the synovium (the membrane tissue in the joint that normally lubricates the joint) which becomes pathologic and the surface of the joint is destroyed.
In either case when the surface of the joint is worn away, a point in time will arise when walking and activities of daily living will become very difficult. Standardised treatment such as weight loss, anti-inflammatory medication, braces, orthotics, steroid injections, physical therapy, etc. are all tried and if effective that is fine.
In many cases however, despite the above non-surgical treatments functional limitations persist. Most people who are considering knee replacement are;
- Limited to walking less than three to six blocks, or less than 15 to 20 minutes
- They have difficulty getting up out of a chair
- They experience rest pain
- They are taking anti-inflammatory medication and/or pain medicine on a regular basis
- The pain they experience gets generally progressive
It is important to realize that a knee “replacement” is actually just a “resurfacing” of the knee joint. The femur or thigh bone is covered with a metal covering and plastic is placed on the tibia so that instead of irregular arthritic surfaces, one has metal and plastic articulating which produces a smooth non-patent surface. In most cases the undersurface of the knee cap is also replaced with a plastic surface so that this articulates with the femoral surface.