Myositis Ossificans of Rectus Femoris: A Rare Case Report.
BACKGROUND
Myositis ossificans (MO), heterotopic ossification, occurs in muscles and soft tissue. This lesion contains actively proliferating fibroblasts and osteoblasts. It commonly affects vigorous young men and more so among athletes. It occurs as a result of trauma, either acute or chronic and can also arise near joints in neurological disorders. By time of presentation, ossification is extensive and the benign nature of the lesion is usually evident on radiological studies. Most common muscles involved in MO are the flexor muscles of the arm, the hamstrings and quadriceps femoris.


METHODS
We present a case of MO with isolated involvement of rectus femoris in mid-thigh and sparing of other three muscles of quadriceps femoris, with no improvement following physiotherapy and medical management requiring surgical excision for better prognosis with no recurrence.


CONCLUSIONS
MO, a benign lesion, is known to affect the flexors of the arm, the hamstrings, and quadriceps femoris; it must be noted that even individual muscle can also be affected as shown in the above case presentation without involving whole group of muscles. Surgical excision is indicated if non-operative measures are not successful.
Department of Orthopaedics, ASRAM Medical College, Eluru, Godavari District, Andhra Pradesh, India.
I Muni
IM
Srikanth
Department of Orthopaedics, ASRAM Medical College, Eluru, Godavari District, Andhra Pradesh, India.
Amar
A
Vishal
Department of Orthopaedics, ASRAM Medical College, Eluru, Godavari District, Andhra Pradesh, India.
K Ravi
KR
Kiran
Myositis ossificans; benign; non-neoplastic; rectus femoris