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. 2016:2016:3548512.
doi: 10.1155/2016/3548512. Epub 2016 Apr 7.

Spontaneous Knee Ankylosis through Heterotopic Ossification after Total Knee Arthroplasty

Samuel Boulezaz  1 , Emmanuel Gibon  1 , Philippe Loriaut  2 , Laurent Casabianca  2 , Romain Rousseau  2 , Benjamin Dallaudiere  3 , Hugues Pascal-Moussellard  2
Affiliations

Spontaneous Knee Ankylosis through Heterotopic Ossification after Total Knee Arthroplasty

Samuel Boulezaz et al. Case Rep Orthop. 2016.

Abstract

This paper reports on a case of total ankylosis of the knee after a cruciate-sacrificing cemented total knee arthroplasty (TKA). An 82-year-old female patient previously underwent primary TKA for osteoarthritis twenty years ago in our institution. She had recovered uneventfully and returned to her regular activities. There was no history of postsurgical trauma; however, she progressively lost knee range of motion. Radiographs revealed severe bridging heterotopic ossification.

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Figures

Figure 1
Figure 1
AP and lateral X-rays showing massive heterotopic ossification around the implants.
Figure 2
Figure 2
CT scan views showing a circumferential complete ankylosis of the knee.
Figure 3
Figure 3
No lysis between cement and cancellous bone.
Figure 4
Figure 4
Complete quadriceps amyotrophy.
See this image and copyright information in PMC

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