The development of bone within the soft tissues around the elbow following trauma, surgery, or neurological injury can produce severe restriction of joint movement and is one of the most challenging complications of elbow injury to manage.
What is Heterotopic Ossification?
Heterotopic ossification (HO) is the formation of mature bone in an abnormal location within soft tissues, typically around a joint. In the elbow, it most commonly develops following fractures, dislocations, burns, or neurological injuries such as head injury or spinal cord injury. The ectopic bone progressively restricts movement as it matures.
Types of Heterotopic Ossification
Causes
Severe elbow trauma including fracture-dislocations is the most common trigger. Neurological injuries, prolonged immobilisation, and delayed surgical treatment of elbow injuries are risk factors. An individual’s biological predisposition plays a role, as not all patients with similar injuries develop HO.
- Rapidly progressive elbow stiffness in the weeks to months following trauma or surgery
- Warmth and tenderness around the elbow as the heterotopic bone is maturing
- Severe restriction of both flexion and extension once the bone has matured
Diagnosis
Plain X-rays are the primary imaging tool and are used to track the maturation of heterotopic ossification over time. Immature HO appears hazy and ill-defined on X-ray, while mature bone has a well-defined cortical outline. Surgical excision is best timed once the HO has fully matured, typically 12 to 18 months after the original injury.
CT scan provides detailed three-dimensional assessment of the volume and exact location of heterotopic bone, which is essential for surgical planning to ensure complete excision while protecting adjacent neurovascular structures.
Treatment
Surgical Excision with Release
Once the heterotopic bone has matured, typically 12 to 18 months following the original injury, Dr. Kushalappa performs surgical excision of the ectopic bone combined with elbow contracture release. Timing of surgery is important, as operating on immature HO is associated with a higher recurrence rate. Post-operative prophylaxis with anti-inflammatory medication or low-dose radiation is used to reduce the risk of recurrence.
Why Choose Dr. Kushalappa Subbiah in Bangalore?
Dr. Kushalappa Subbiah completed a Fellowship in Shoulder Surgery at the Sydney Shoulder Research Institute, where he trained in advanced arthroscopic shoulder procedures including labral repair and reconstruction. He holds the International Olympic Committee (IOC) Diploma in Sports Medicine, and has direct clinical experience managing shoulder injuries in Indian athletes across cricket, swimming, tennis, and contact sports. He is appointed as a Consultant Shoulder Surgeon at NH Hospital, Bangalore.