What is a pseudotumor in the hip?
Pseudotumors are often a granulomatous lesion or a destructive cystic lesion, neither infective nor neoplastic, which develops in the vicinity of a total hip replacement and resembles a tumor. They can be small or large, solid or fluid-filled masses with or without a communication to the joint.
What is the commonest complication after total hip arthroplasty?
The most common complications requiring readmission for hip arthroplasty are dislocation and infection, whereas infection dominates following knee arthroplasty [8, 9].
What is pseudotumor formation?
A pseudotumor is a large, solid, or semi-liquid mass of soft tissue growth inside the body, usually around the hip joint. It’s a complication associated with metal on metal (MoM) hip replacements. Typically, pseudotumors form as a negative reaction to metal debris.
What is a seroma after hip replacement?
A seroma is classically described as a collection of exudative fluid within the subcutaneous tissues adjacent to an incision in potential space created by surgery or trauma. 11. A seroma usually develops within two weeks after surgery or trauma.
What percentage of patients with metal on metal hip resurfacings has asymptomatic Pseudotumors?
Pseudotumors, including asymptomatic cases, have been reported in up to 69 % of cases when patients are screened after metal-on-metal hip resurfacing or THA [1–9].
What factor is associated with a high risk of developing Pseudotumors after metal on metal hip resurfacing?
Risk factors for the formation of a pseudotumor are cobalt >5 μg/l [10], female gender [12, 13], pain [14], and a high inclination angle >55° [15].
What hurts the most after hip replacement surgery?
In most cases , thigh pain after a hip replacement is mild to moderate. This pain typically occurs in the mid-front of the thigh. It may feel as if an ache and come and go. Some people may also experience discomfort that presents as numbness in the thigh.
What are two 2 postoperative complications following total hip arthroplasty?
Hip replacement complications include blood clots, change in leg length, dislocation, fractures, infection and loosening of the implant. People who have received metal-on-metal hips may also experience metallosis, a form of metal poisoning that causes tissue damage and other serious conditions.
What is Metallosis?
Metallosis is the term used to describe abnormal buildup and deposition of metallic debris into the periprosthetic soft tissues and adjacent bone from the weight-bearing surface of metal on metal joint replacements.
What is Alval?
Atypical lymphocytic vasculitis and associated lesions (ALVAL) is a delayed type IV hypersensitivity reaction. It has been observed in patients with metal-on-metal total hip replacements (THRs)1 as a sequela of an adverse reaction to metal debris (ARMD).
What does a seroma feel like?
A seroma may cause symptoms at the site of your surgery, including the following: a balloon-like swelling of the skin. a feeling of liquid or obvious movement under the skin.
What are the signs of a seroma?
The presence of a seroma can be identified by the presence of the following signs and symptoms:
- Transparent or clear fluid under the wound.
- Local swelling.
- Unevenness in the area.
- Pain in or around the wound.
- Redness and increased temperature in the area surrounding the wound.
Are metal on metal hip replacements still used?
To date, there are no FDA-approved metal-on-metal total hip replacement devices marketed for use in the US. There are two FDA-approved metal-on-metal hip resurfacing devices available. Some patients who had a hip replacement prior to May 18,2016 may have received a metal-on-metal hip implant.
How long does a metal-on-metal hip resurfacing last?
Artificial hips generally last 10 to 15 years, but metal-on-metal (MoM) implants have a much shorter lifespan – failing after five years in some patients. They’re also linked to a growing list of other problems, including bone and tissue destruction and high levels of metal ions in the blood.
Are metal-on-metal hip replacements still used?
What you Cannot do after a hip replacement?
Don’t cross your legs at the knees for at least 6 to 8 weeks. Don’t bring your knee up higher than your hip. Don’t lean forward while sitting or as you sit down. Don’t try to pick up something on the floor while you are sitting.
What is the fastest way to recover from a hip replacement?
7 practical tips for successful hip replacement recovery
- Prepare your home in advance.
- Plan for some time off work.
- Balance rest and recovery with gentle exercise.
- Think about your nutrition to help speed up recovery.
- Be mindful of your hip when in bed.
- Think about your holidays and travel plans.
What is the most common cause of death after total hip replacement?
The risk factors for early mortality most commonly identified are increasing age, male gender and co-morbid conditions, particularly cardiovascular disease. Cardiovascular complications appear to have overtaken fatal pulmonary emboli as the leading cause of death after hip replacement.
What are the symptoms of metal poisoning from hip replacement?
Metallosis Symptoms Following Hip Replacement
Local symptoms of metallosis include hip or groin pain, numbness, swelling, weakness and a change in the ability to walk, according to the U.S. Food and Drug Administration.
Can you be poisoned by an artificial hip?
Cobalt and chromium poisoning is one of the most devastating health complications associated with metal-on-metal hip replacements. It occurs when corroded cobalt or chromium from the metal-on-metal implant enters the patient’s bloodstream.
What is Alval hip?
ALVAL is a well-documented and common health problem that results from metal hip implants; it can happen to patients with total hip replacements or hip resurfacings. One study of nearly 14,000 hips found that as many as 6.5% of hip replacements result in ALVAL or pseudotumors.
What happens if seroma is left untreated?
If left untreated, a seroma may lead to skin flap necrosis or infection.
Does compression help seroma?
Compressing the abdominal area (and typically using a drain as well) can help to prevent a seroma from forming. The compression garment should be worn for about 3 to 6 weeks, depending on your surgeon’s instructions.
What happens to an untreated seroma?
Small seromas often regress into the body on their own; those that remain can be aspirated using a needle and syringe. If a seroma persists, surgical removal may be considered. Large, untreated seromas pose an increased risk of infection, and they may develop a fibrous capsule, complicating drainage.
What is the newest type of hip replacement?
The latest advanced technology, a percutaneously-assisted “SUPERPATH™” approach, involves sparing the surrounding muscles and tendons when performing total hip replacement surgery. This technique builds a traditional hip implant in-place without cutting any muscles or tendons.