Heterotopic ossification (HO) is defined as
pathological bone formation in soft tissues
, for example in muscles, where physiologically there is no osseous tissue present. It is one of the most common complications of total hip joint replacement surgery.
What is heterotopic ossification hip?
Heterotopic ossification (HO) after hip arthroscopy is
the abnormal formation of mature lamellar bone within extra skeletal soft tissues
. HO may lead to pain, impaired range of motion and possibly revision surgery.
Can you fix heterotopic ossification?
For now, the only way to treat heterotopic ossification is
to wait for it to stop growing and cut it out
which never completely restores joint function. This new research suggests that there may be a way to treat it at the cellular level.
How is heterotopic ossification treated?
Usually, treatment will include
gentle range of motion of the joints and some physical therapy
. Your doctor may also prescribe medications to slow down or stop the abnormal growth of bone. When HO severely affects your movement or causes excruciating pain, surgery may be needed.
Does heterotopic ossification require surgery?
In the case of heterotopic ossification,
the only effective treatment is excision
, also called resection. Dr. Nwachukwu will often delay surgical excision for 5-6 months following the initial hip trauma and/or inciting surgery, allowing the bone growth to mature and for a distinct fibrous capsule to develop.
Is heterotopic ossification a disability?
Heterotopic ossification is a
condition affecting
an appreciable minority of critical care patients; it can have long-lasting effects on recovery and return to functional status. Ectopic bone forms in soft tissues near the large joints, causing pain, swelling, limitation of movement and ultimate disability.
How long does heterotopic ossification last?
Prognosis is generally good after surgery. Mean time from injury to surgery is
3.6 years
. Once the surgery is performed, studies have shown that average ROM in the hip can improve from 24.3 to[5]. After surgery, improvement was maintained in follow up 6 months after surgery.
What doctor treats heterotopic ossification?
When heterotopic ossification (HO) is severe or problematic and causes pain, or affects a patient’s mobility and function, it should be managed by an
orthopaedic surgeon
. Occasionally, that involves surgery or a revision procedure to resolve the problem.
What does heterotopic ossification feel like?
The most common symptom of heterotopic ossification is
stiffness of a joint
. Most people who develop heterotopic ossification cannot feel the abnormal bone, but notice the bone growth getting in the way of normal movements.
What is the cause of heterotopic ossification?
Heterotopic ossification (HO) is the
presence of bone in soft tissue where bone normally does not exist
. The acquired form of HO most frequently is seen with either musculoskeletal trauma, spinal cord injury, or central nervous system injury.
Where does heterotopic ossification occur?
Heterotopic ossification (HO) is defined as the formation of mature, lamellar bone in nonosseous tissue and often occurs
between the muscle and the joint capsule
.
How long does it take for heterotopic ossification to mature?
HO is often thought to take
approximately 12 months
to mature; however, surgical treatment of posttraumatic HO at the elbow has been performed effectively at 3 and 6 months post trauma.
Is heterotopic ossification a tumor?
Heterotopic ossification is a
benign
, ectopic bone growth that develops in muscle and other soft tissue.
How common is heterotopic ossification?
Heterotopic ossification is a common complication of total hip arthroplasty. Its prevalence is not the same in all of the patient groups.
Frequency of HO varies from 15 to 90%
.
What does it mean to be heterotopic?
1 :
occurring in an abnormal place heterotopic bone formation
. 2 : grafted or transplanted into an abnormal position heterotopic liver transplantation. Other Words from heterotopic.
Who is at risk for heterotopic ossification?
| Risk Factors for Heterotopic Ossification | Injury severity score (ISS) • High ISS is a risk 11% | Burns • Both locally under burn and remotely. • More common with >20% body surface area | Decubitus ulcers • Worse with concomitant decubitus ulcers and SCI or TBI 70% (with concomitant SCI) |
|---|
How do you diagnose heterotopic ossification?
Signs and symptoms of heterotopic ossification
A diagnosis of HO can be made clinically if
localized inflammatory reaction, palpable mass, or limited range of motion (ROM) is observed
. Clinically, the onset of larger masses of HO is often characteristic of any inflammatory reaction.
Can physical therapy help heterotopic ossification?
Physical therapy has been
shown to benefit patients suffering
from heterotopic ossification. Pre-operative PT can be used to help preseve the structures around the lesion. ROM exercises (PROM, AAROM, AROM) and strengthening will help prevent muscle atrophy and preserve joint motion.
What are the 3 types of ossification?
Osteoblasts, osteocytes and osteoclasts are the three cell types involved in the development, growth and remodeling of bones. Osteoblasts are bone-forming cells, osteocytes are mature bone cells and osteoclasts break down and reabsorb bone. There are two types of ossification:
intramembranous and endochondral
.
Is ossification and calcification the same?
Calcification is often confused with
ossification
. Calcification is synonymous with the formation of calcium-based salts and crystals within cells and tissue. It is a process that occurs during ossification, but not necessarily vice versa.
What is heterotopic ossification elbow?
Heterotopic ossification (HO) is
a form of pathologic bone that often occurs in the elbow after a substantial traumatic injury
and can complicate the functional outcome of the affected upper extremity.
