PMC7085846_01
(a, b) Initial X-rays of right distal humerus fracture. (c, d) Immediate postoperative X-rays following total elbow arthroplasty.
CRIS2020-2068045.001.jpg
PMC7085846_01_CRIS2020-2068045.001.jpg
fig1
The patient was treated with a total elbow arthroplasty and an ulnar nerve anterior subcutaneous transposition (Figure 1).
(a, b) Marked heterotopic ossification (HO) seen around the prosthesis at the 6-week follow-up X-rays. (c, d) Maturation of the HO seen at 18 weeks postoperation.
CRIS2020-2068045.002.jpg
PMC7085846_01_CRIS2020-2068045.002.jpg
fig2
HO development was noticed radiographically at 6 weeks (Figures 2(a) and 2(b)). This patient clinically and radiographically was followed until cortication and maturation of the HO with no change in HO size were noted on consecutive radiographs 6 weeks apart (Figures 2(c) and 2(d)).
Select computer tomographic views of the elbow in the sagittal (a), coronal (b), and axial (c) planes demonstrating significant HO (marked by the asterisk) engulfing the hardware and native bone.
CRIS2020-2068045.003.jpg
PMC7085846_01_CRIS2020-2068045.003.jpg
fig3
CT imaging was then performed to plan for operative excision of the ectopic bone (Figure 3).
(a) AP and (b) lateral radiographs of R elbow in recovery bay following excision of HO.
CRIS2020-2068045.004.jpg
PMC7085846_01_CRIS2020-2068045.004.jpg
fig4
An open excision of HO and soft tissue releases (Figure 4) was conducted.
Follow-up AP (a), and lateral (b) X-rays 10 months after HO excision and radiation treatment.
CRIS2020-2068045.005.jpg
PMC7085846_01_CRIS2020-2068045.005.jpg
fig5
Her wound was well-healed, and there was no significant recurrence of the HO on follow-up radiography (Figure 5).