Severe heterotopic ossifications after total knee arthroplasty

Area of Science:

• Orthopedic Surgery
• Medical Imaging
• Radiotherapy

Background:

• Total knee arthroplasty (TKA) is a common procedure for end-stage knee osteoarthritis.
• Heterotopic ossification (HO) is a potential complication following orthopedic surgery, characterized by ectopic bone formation.
• Early detection and management of HO are crucial for preserving joint function.

Observation:

• An 83-year-old female patient developed severe heterotopic ossification post-TKA.
• A significant decline in range of motion (ROM) was observed between postoperative weeks 3 and 6.
• Initial satisfactory ROM of 0-90 degrees deteriorated rapidly.

Findings:

• The patient's heterotopic ossification led to a dramatic loss of knee joint range of motion.
• A multimodal treatment approach was implemented, including radiotherapy, indomethacin, and anti-inflammatory physiotherapy.
• This treatment regimen resulted in gradual but complete symptom relief and functional recovery over 6 months.

Implications:

• This case highlights the importance of recognizing and managing severe heterotopic ossification after total knee arthroplasty.
• The successful outcome suggests that a combined treatment strategy of radiotherapy, indomethacin, and physiotherapy can be effective.
• Further research into the optimal management of post-arthroplasty heterotopic ossification is warranted to improve patient outcomes.