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Heterotopic ossification

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Präzision auf höchstem Niveau mit unseren Kugellagern. Rufen Sie jetzt an 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 Heterotopic Ossification (HO) is the abnormal growth of bone in the non-skeletal tissues including muscle, tendons or other soft tissue. When HO develops, new bone grows at three times the normal rate, resulting in jagged, painful joints. What causes Heterotopic Ossification (HO)? HO only occurs below the level of injury Heterotopic ossification (HO) is a diverse pathologic process, defined as the formation of extraskeletal bone in muscle and soft tissues. HO can be conceptualized as a tissue repair process gone awry and is a common complication of trauma and surgery

Heterotopic ossification - PubMe

  1. Heterotopic Ossification (HO) refers to the formation of lamellar bone inside soft tissue structures where bone should not exist. The development of HO is extra-articular and occurs outside the joint capsule. The new bone generally does not involve the periosteum
  2. Heterotopic ossification (HO) is the growth of bone in places where it is not supposed to be. It can happen anywhere in the body. The hip, knees, shoulders, and elbows are the most common places. Growths can be small or large
  3. The term heterotopic ossification (HO) refers to the presence of mature lamellar bone tissue outside of the bones that form the skeleton.20 HO and ectopic bone are terms that are used interchangeably for this type of bone formation
  4. Heterotopic ossification around the hip joint in a patient who has undergone hip arthroplasty Heterotopic ossification (HO) is the process by which bone tissue forms outside of the skeleton

Heterotopic Ossification - Craig Hospita

Heterotopic Ossification: A Comprehensive Revie

  1. Heterotopic Ossification is the formation of bone in atypical, extraskeletal tissues that may occur following localized trauma, following a neurological injury, or as a post-surgical complication. Patients typically present with painless loss of motion of the affected joint
  2. The term heterotopic ossification (HO) describes bone formation at an abnormal anatomical site, usually in soft tissue. HO can be classified into the following 3 types: Myositis ossificans progressiva (fibrodysplasia ossificans progressiva) - This disorder is among the rarest genetic conditions, with an incidence of 1 case per 2 million persons
  3. Heterotopic Ossification is the spontaneous formation of bones in tissue where bones normally do not grow. This most often occurs as a response to Spinal Cord Injury and Amputation of a limb/limbs. In amputees it often forms near the injury site and in paralyzed individuals it occurs most often in the hip joint and sometimes in the knee joint
  4. Heterotopic ossification (HO) is a process by which ectopic bone is formed in the soft tissue surrounding peripheral joints5. Osteoprogenitor stem cells lying dormant in the surrounding soft tissues with a stimulus (such as hip surgery, spinal cord injury (SCI), and stroke) differentiate into osteoblast

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,.. Heterotopic ossification (HO) is a diverse pathologic process, defined as the formation of extraskeletal bone in muscle and soft tissues. The word heterotopic is derived from the greek roots hetero and topos, meaning other place.. HO can be conceptualized as aberrant tissue repair and is increasingly recognized as a. Heterotopic ossification (HO), also known as heterotopic bone formation, is the presence of bone in soft tissue where bone normally does not exist. This condition should not be confused with metastatic calcification—such as may be seen with hypercalcemia—and dystrophic calcification, which occurs in morbid tissues such as tumor Heterotopic ossification is more frequent in men than women, and in higher-level injuries (cervical and thoracic)

Heterotopic ossification (HO) refers to abnormal formation of mature lamellar bone within extraskeletal, peri-articular soft tissue. It differs from other disorders of bone mineralization in that HO occurs outside of the joint capsule, in planes not connected to periosteum. It is also known as myositis ossificans. Heterotopic ossification (HO) is a process of benign bone formation and growth outside of normal skeletal locations. It is associated with numerous local and systemic conditions. These include hip replacement and acetabular surgery, soft-tissue and bony trauma, burns, rar heterotopic ossification The development of mature lamellar bone in soft tissue that does not normally contain bone. The condition is usually associated with trauma in or around a joint or following severe head or spinal cord injuries. Heterotopic ossification is also found in the rare autosomal dominant condition of MYOSITIS OSSIFICANS

Heterotopic Ossification is an abnormal bone growth that appears in the soft tissue surrounding certain joints in the body. This condition is likely to affect around 1 in 5 people who have a spinal cord injury (SCI) and it can be a painful experience. The bone growth as a result of HO occurs more rapidly than would normally occur Heterotopic ossification (HO) is defined as the process by which trabecular bone forms outside of the skeletal structure, occupying space in soft tissue where it does not normally exist. The current popular prophylactic treatment modalities include non-steroidal anti-inflammatory drugs (NSAIDs) and radiation therapy, although the literature remains inconclusive as to which is superior Heterotopic ossification (HO) is the process by which calcified bone develops in soft tissues. Because of the abnormal calcification, complications such as bone deformation, loss of range of motion, and joint immobility adversely affect patients. There are many genetic types of heterotopic ossification, namely fibrodysplasia ossificans progressiva Heterotopic Ossification. Condition: Heterotopic ossification (HO) occurs when bone grows abnormally outside of the skeletal system. Background: HO can occur after a spinal cord injury, traumatic brain injury, stroke, severe burns, fractures, and joint replacement surgery. A physical medicine and rehabilitation (PM&R) physician, also known as a.

Incidence and Clinical Significance of Heterotopic

Heterotopic Ossification - Physiopedi

Heterotopic ossification. Heterotopic ossification (HO) is a common and sometimes functionally disabling complication of TBI. It is the formation of lamellar bone in extraskeletal soft tissues. Myositis ossificans is a similar process that occurs in muscle. HO occurs most often at the hips, elbows, and shoulders The occurrence of heterotopic ossification (HO) is associated with injury to the central nervous system. 2,10,12,14,17,26,27 Heterotopic ossification near a joint can produce pain, limitations in joint motion, and difficulty with activities of daily living. Disability is amplified in patients with neurologic impairments as they have greater difficulty compensating for limited joint mobility 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%. Hip ankylosis, male gender, and previous history of HO are said to be risk factors with a significant level Formation of heterotopic bone (mostly in muscle) or peri-articular ossifications (around capsule and ligaments) around the elbow is common. It is a known sequela of elbow trauma (up to 37%), severe burns, or injury to the central nervous system. Severity ranges from minor clinically insignificant flecks of bone to complete bony ankylosis Heterotopic Ossification Condition: Heterotopic ossification (HO) occurs when bone grows abnormally outside of the skeletal system. Background: HO can occur after a spinal cord injury, traumatic brain injury, stroke, severe burns, fractures, and joint replacement surgery. A physical medicine and rehabilitation (PM&R) physician, als

LESION (HETEROTOPIC OSSIFICATION), RIGHT FEMUR, EXCISION: - BONE -- CONSISTENT WITH MUSCLE HETEROTOPIC OSSIFICATION. - NEGATIVE FOR MALIGNANCY. Micro. The sections show laminar bone with a marrow space containing adipose tissue and benign skeletal muscle. The osteocytes show no nuclear atypia. No mitotic activity is appreciated Heterotopic ossification (HO) can be defined as the pathologic formation of bone in extraskeletal tissues. There has been a substantial amount of recent research on the pathophysiology, prophylaxis, and treatment of HO and traumatic conditions associated with the development of HO Heterotopic ossification is not simply calcification of tissue, but is the formation of lamellar bone in an abnormal . ›. Surgical management of severe lower extremity injury. View in Chinese. venous thromboembolism, rhabdomyolysis, and late complications including amputation and heterotopic ossification in residual limbs Radiation Therapy for the Prevention of Heterotopic Bone Formation. Your physician has recommended radiation treatment to prevent extra bone growth (heterotopic ossification) after your joint replacement surgery. You will receive treatments of a low dose of radiation. Radiation is the use of x-ray to treat both cancerous and noncancerous.

Sep 10, 2019. #3. It's going to depend on where the heterotopic ossification is removed from. 27355 is used for removal of benign cysts/tumors from the femur bone itself. Since these abnormal ossifications occur in the muscles or tendons, I would look at 27328 or 27339 depending on the size of the ossification removed Heterotopic ossification removal. Thread starter NorthstarCoder; Start date Jul 20, 2009; N. NorthstarCoder Contributor. Messages 10 Best answers 0. Jul 20, 2009 #1 Trying to code removal of a heterotopic ossification on the greater trochanter. I'm planning on using 726.91 for a dx but unsure what CPT to use

Achilles Tendon Pathology - Radsource

Heterotopic Ossification. - may present w/ signs of localized inflammation or pain, elevated skin temp, ect. - ref: Osteoblasts Have a Neural Origin in Heterotopic Ossification.. - Heterotopic ossification about the hip after intramedullary nailing for fractures of the femur. - Heterotopic ossification around the hip with intramedullary nailing. Clinical Features of Heterotopic Ossification Epidemiology The classic presentation of nongenetic HO is in young adults with a clear history of local trauma or surgery.(1) Approximately half of patients are in their second and third decades of life; however, a broad age distribution is present from infancy to late adulthood

Heterotopic ossification (HO) is a relatively common complication following hip surgery treated with open reduction and internal fixation, total arthroplasty or hemiarthroplasty. Development of HO after hip surgery is an important clinical issue as it can affect functional status. We aimed to determine whether there was association between severity of heterotopic ossification about the hip and. Heterotopic Ossification Bone Health This 19 minute video discusses aspects of Heterotopic Ossification (Classifications, Etiology, Diagnosis, Prevention and treatment options) and Osteoporosis (Initial bone loss after traumatic injury, Impact of aging, Impact of menopause, Prevention and treatment options) Heterotopic ossification is the formation of bone in the soft tissues. Soft tissue bone deposition may range from the minimal and inconsequential to massive and clinically significant. In some clinical settings it is a predictable finding with an unpredictable course and in other settings it may be diagnostically confounding. Heterotopic ossification may be encountered in clinically disparate. Heterotopic ossification visible on an AP X-ray (a) and on a computed tomography scan (b) around right hip. It is a complete hip ankylosis. HO like this can completely sabotage functional outcomes of THR limiting the range of motion in all planes Heterotopic Ossification Heterotopic Ossification (HO) is the abnormal growth of bone in the non-skeletal tissues including muscle, tendons, or other soft tissue. When HO develops, new bone grows at 3 times the normal rate resulting in jagged, painful joints

Potent inhibition of heterotopic ossification by nuclear retinoic acid receptor-γ agonists, Nature Medicine, published online April 3, 2011. doi:10.1038/nm.2334 About The Children's Hospital of Philadelphia : The Children's Hospital of Philadelphia was founded in 1855 as the nation's first pediatric hospital Heterotopic ossification (HO) is a form of abnormal healing typified by bone forming within muscle or soft tissue as the body heals from injury or surgery. Historically, there has been no treatment for HO, but new research suggests that could change Nonhereditary myositis ossificans, or heterotopic ossification, is the physical dynamic of a deep bruise or hematoma calcifying and turning into bone.. Calcified hematomas mostly occur in the situation of an individual sustaining deep bruising and bleeding from a forceful blunt trauma Heterotopic ossification (HO) is more likely to occur after joint replacement surgery. Men over the age of 65 are affected most often. There are some known risk factors for HO. These include patients with ankylosing spondylitis or Paget's disease. Hip joint replacement without cement is a risk factor Heterotopic Ossification Definition. Heterotopic ossification (HO) is the growth of bone in places where it is not supposed to be. It can happen anywhere in the body. The hip, knees, shoulders, and elbows are the most common places. Growths can be small or large. Causes. The cause is not known. It may be due to genes or trauma. Risk Factor

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Video: Heterotopic Ossification - Lahey Hospital & Medical Center

Hip Anatomy - Recon - Orthobullets

Heterotopic ossification (HO) is a pathological process of lamellar bone formation in soft tissue outside of skeleton. HO occurs frequently after severe head injury, spinal injury, non-traumatic intracranial lesion and long-term coma [1, 2].However, the occurrence of excessive, symptomatic heterotopic ossification around bilateral hips and bilateral knees is rarely described in the literature Heterotopic ossification (HO), a condition where bone forms in nonskeletal tissues, is a common complication after soft tissue injury or surgery that remains incompletely understood, and treatment options are limited. Here, Cong and colleagues dissected out the molecular mechanisms of HO, finding that a positive feedback loop of YAP-Sonic hedgehog (SHH) signaling drove HO formation in.

Heterotopic Ossification - an overview ScienceDirect Topic

Heterotopic ossification (HO) is the formation of pathological, heterotopic bone in muscle or soft tissue. The incidence of HO varies greatly among different patient populations and among. Heterotopic ossification is a common complication after bone and joint surgery. If the disease progresses, it may cause pain and disability, eventually defeating the purpose of surgery in the first place. Today, prophylactic treatment is indicated after surgery. Both nonsteroidal antiinflammatory drugs and radiation therapy are effective

Abnormal bone growth, X-ray - Stock Image - M210/0217Charcot’s Arthropathy of the Hip | The Journal of Rheumatology

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. There has been a substantial amount of recent research on the pathophysiology, prophylaxis and treatment of HO associated with open. The incidence of unilateral minor heterotopic ossification after primary total knee arthroplasty is still unknown, but bilateral severe heterotopic ossification is rare and has not been reported before. Presented in this report is a 60-year-old female patient who developed bilateral knee pain and stiffness 2 weeks after primary total knee arthroplasty Although the incidence of minor heterotopic ossification is probably higher than what is usually expected, severe heterotopic ossification (HO) is an extremely rare event following total knee replacement surgery. We present the case of a 66-year-old woman who initially had achieved an excellent range of motion following bilateral uncemented rotating platform total knee replacement, before. Heterotopic ossification is defined as the formation of bone within soft tissues, most frequently muscle tissue. The heterotopic ossification of muscles, ligaments and tendons is a potential complication following trauma, elective orthopaedic surgery, severe burns and neurological injury Heterotopic Ossification. May 16, 2020 | Physical Therapy. Heterotopic Ossification or HO is an abnormal bone growth in the non skeletal tissues. This includes your body's muscles, tendons, and other soft tissues. When HO develops, new bone will grow at a rate of three times its normal which results in your joints being jagged and painful

TKA Heterotopic Ossification. TKA Heterotopic Ossification is a complication of TKA with bone formation in the soft tissues that develops after surgery with or without a precipitating event. Diagnosis can be made with plain radiographs of the knee. Treatment is observation in majority of cases as HO rarely impacts clinical outcome Heterotopic ossification, or the appearance of ectopic bone in para-articular soft tissues after surgery, immobilization, or trauma, complicates the surgical and physiatric management of injured joints. The chief symptoms of heterotopic ossification are joint and muscle pain and a compromised range of motion Heterotopic ossification is the formation of mature, lamellar bone in nonskeletal tissue, usually in soft tissue surrounding joints [ 1, 2 ]. Its exact etiology is unknown. Heterotopic ossification is commonly seen in patients with traumatic brain injury, spinal cord injury, cerebrovascular accident, burns, fractures, trauma, or muscle injuries. Heterotopic ossification Proliferation of osteoblasts, reduction in osteoclasts NSAIDs, Noggin Radiation therapy Fig. 6. (a) Basic schema of the normal bone injury response. (b) Proposed schema of heterotopic ossification. FOP fibrodysplasia ossificans progressiva; NSAIDs non-steroidal anti-inflammatory drugs. Table 1 Heterotopic ossification of the elbow in patients with burns. Results after early excision. Radiation therapy for heterotopic ossification prophylaxis acutely after elbow trauma: a prospective randomized study. Surgical treatment of post-traumatic stiffness of the elbow. Surgical resection of heterotopic bone about the elbow: an institutional.

Heterotopic ossification - Wikipedi

Heterotopic ossification is the abnormal formation of mature lamellar bone within extraskeletal soft tissues where bone does not exist. Heterotopic ossification has been classified into posttraumatic, nontraumatic or neurogenic, and myositis ossificans progressiva or fibrodysplasia ossificans progressive Heterotopic ossification (HO) is the presence of the lamellar bone within soft tissues where the bone physiologically does not exist. One of the most common forms of HO is that which intervenes in periarticular soft tissue after hip replacement, with a mean incidence of 53 % reported in the literature [].Multiple studies have been performed to date, but aetiopathogenesis of HO is still uncertain http://www.theaudiopedia.com What is HETEROTOPIC OSSIFICATION? What does HETEROTOPIC OSSIFICATION mean? HETEROTOPIC OSSIFICATION meaning - HETEROT..

Heterotopic ossification Radiology Reference Article

If the address matches an existing account you will receive an email with instructions to retrieve your usernam Heterotopic ossification (HO) in connective tissues like tendons and ligaments severely damages tissue structure. The pathogenesis of HO remains unclear but may involve mTOR. The results presented here indicate that tendon stem/progenitor cells do not undergo osteochondrogenic differentiation when mTOR signaling is inactivated by gene knockout or rapamycin (RAPA) treatment heterotopic ossification pronunciation with meanings, synonyms, antonyms, translations, sentences and more Which is the right way to pronounce the word temporal? te-mpo-ra Heterotopic ossification (HO) after total hip arthroplasty can have a devastating impact on clinical function, and is often unpredictable. It is important, however, to inventory the risk factors for HO and to better understand the epidemiology of HO as reviewed above to better prevent its occurrence

Abnormal Excess Bone Growth in Heterotopic Ossificatio

Myositis ossificans (MO) is the most common form of heterotopic ossification usually within large muscles. Its importance stems in large part from its ability to mimic more aggressive pathological processes. Myositis ossificans is one of the skeletal don't touch lesions.. There are some conditions that are related to, or share a similar name to, myositis ossificans 1 Heterotopic ossification around the hip joint in spinal cord injured patients. Clin Orthop 1975; 112:165-169. Medline, Google Scholar; 32 Finerman GA, Stover SL. Heterotopic ossification following hip replacement or spinal cord injury: two clinical studies with EHDP. Metab Bone Dis Relat Res 1981; 3:337-342. Crossref, Medline, Google Schola Heterotopic ossification, the pathologic formation of extraskeletal bone, occurs as a common complication of trauma or in genetic disorders and can be disabling and lethal

Heterotopic ossification (H.O.) is a common occurrence after total hip arthroplasty (THA) with significant potential clinical ramifications. Controversy still exists regarding the exact etiology of the disorder, including possible risk factors. Surgical technique, surgical approach, postoperative medication protocols and even thromboembolic. Heterotopic ossification (HO) is a common complication after surgical fixation of acetabular fractures, with incidence rates reported as high as 90%. HO can be a debilitating complication and surgical excision for more severe cases carries a high complication rate Heterotopic Ossification. You are here: Home Spinal Cord Injury Special Concerns Heterotopic Ossification. Introduction. HO is a build up of calcium similar to bone around the joints in the body. It causes decreased range of motion in that joint. It can affect the knees, elbows and shoulders but is most commonly found in the hip joint

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Heterotopic ossification is the formation of bone into soft tissue where bone normally does not exist. This may occur with trauma, spinal cord injury, recent surgery, burns, or with certain chronic conditions. Common symptoms reported by people with heterotopic ossification Heterotopic ossification (HO) is the formation of mature lamellar bone in extraskeletal soft tissues. It was first described 1000 years ago in the healing of fractures, and in relation to military wounds, texts from the American Civil War and World War I refer to HO specifically. It continues to cause problems to injured service personnel; the consequences of wound and soft tissue. Heterotopic mesenteric ossification is an uncommon disorder that may be misdiagnosed, which may lead to serious complications. We describe the radiographic findings and key features to prevent future misdiagnosis of this rare process. A 50-year-old man sustained a stab wound to the left flank in 1998 that required nephrectomy and left colon. Heterotopic ossification (HO) is the formation of pathological bone in muscle or soft tissue. The incidence in individuals following a spinal cord injury (SCI) has been reported to vary greatly, ranging from 10% to 78% (Banovac 2001; van Kuijk et al. 2002, Ranganathan et al. 2015). H

When heterotopic ossification is caused by trauma or an injury, it is known as heterotopic ossification traumatica, and a case with no known cause is called atraumatica. Heterotopic bone formation also has been known to strike amputees, especially those who have experienced violent or traumatic amputations Myositis ossificans is a localized form of post-traumatic heterotopic calcification and ossification that occurs in a traumatized muscle, particularly in the anterior thigh. The mass characteristically matures from the periphery to the center; a rim of calcification is seen by 6 to 8 weeks and is separate from the underlying bone Approximate Synonyms. Heterotopic bone ossification; Heterotopic calcification not postoperative; ICD-10-CM M61.59 is grouped within Diagnostic Related Group(s) (MS-DRG v 38.0):. 557 Tendonitis, myositis and bursitis with mcc; 558 Tendonitis, myositis and bursitis without mcc; Convert M61.59 to ICD-9-CM. Code History. 2016 (effective 10/1/2015): New code (first year of non-draft ICD-10-CM Heterotopic ossification occurs in approximately 20% of patients with severe spinal injury. It is more common following injuries of the cervical or upper thoracic cord. The soft tissue calcification occurs within months of the injury with bone maturation taking over a year to develop. The aetiology is unknown but there are recognised. Heterotopic Ossification. General considerations. Defined as the abnormal formation of true bone within extra-skeletal soft tissues. More common in males, especially following spinal cord injury, it is rare in young children. Formerly called myositis ossificans. That term has fallen out of favor because the condition is not always inflammatory.

What is Heterotopic Ossification? (with pictures

Heterotopic ossification (HO) is the formation of lamellar bone within connective and other tissue where bone should not form and is a rare complication after burn injury. However, it leads to severe pain and distress, marked reduction in joint range of motion (ROM), impaired function and increased hospital length of stay In a series of papers, the team of orthopaedic-pharmacologists at Vanderbilt reported that plasmin is essential in preventing osteoporosis, for fracture repair without heterotopic ossification and, most recently, to prevent heterotopic ossification following an isolated muscle injury Heterotopic ossification (HO) refers to the formation of bone tissue outside the normal skeletal system. According to its pathogenesis, HO is divided into hereditary HO and acquired HO. There currently lack effective approaches for HO prevention or treatment. A deep understanding of its pathogenesis will provide promising strategies to prevent and treat HO Etidronate Disodium may prevent the development of heterotopic ossification in individuals with ABI. Forceful joint manipulation may prevent bony ankylosis post ABI and may increase range of motion in joints affected by heterotopic ossification Heterotopic ossification synonyms, Heterotopic ossification pronunciation, Heterotopic ossification translation, English dictionary definition of Heterotopic ossification. n. 1. The natural process of bone formation. 2. a. The hardening or calcification of soft tissue into a bonelike material. b. A mass or deposit of such..

Heterotopic ossification (HO) is the pathologic development of ectopic bone in soft tissues because of a local or systemic inflammatory insult, such as burn injury or trauma. In HO, mesenchymal stem cells (MSCs) are inappropriately activated to undergo osteogenic differentiation. Through the correlation of in vitro assays and in vivo studies (dorsal scald burn with Achilles tenotomy), we have. HETEROTOPIC OSSIFICATION By Dr.Sushil Kachewar skachewar@yahoo.co.in 1. HETEROTOPIC OSSIFICATION Dr Sushil Kachewar MD,DNB Smt. Kashibai Navale Medical College & General Hospital Narhe, Pune - 411 041 3. T1W CORONAL T2W CORONAL 4. STIR CORONAL 8. 2 months 6 months 9 Progressive osseous heteroplasia is a disorder in which bone forms within skin and muscle tissue. Bone that forms outside the skeleton is called heterotopic or ectopic bone. In progressive osseous heteroplasia, ectopic bone formation begins in the deep layers of the skin (dermis and subcutaneous fat) and gradually moves into other tissues such. Fibrodysplasia ossificans progressiva (FOP) is a rare genetic disease characterized by progressive and catastrophic heterotopic ossification (HO) of skeletal muscle and associated soft tissues. FOP is caused by dominantly acting mutations in the bone morphogenetic protein (BMP) type I receptor, ACVR1 (also known as ALK2), the most prevalent of which is an arginine to histidine substitution. Background: Heterotopic ossification (HO) is a known risk following cervical total disc replacement (CTDR) surgery, but the cause and effect of HO are not well understood. Reported HO rates vary, and few studies are specifically designed to report HO. The effects on outcomes, and the risk factors for the development of HO have been hypothesized and reported in small-population, retrospective. Heterotopic ossification (HO) is the abnormal growth of extraskeletal bone. Joint involvement may result in chronic stiffness and pain causing considerable functional impairment and the inability to perform the activities of daily living. HO affecting the shoulder joint is rare and little is known.