Orthopaedic Sports Medicine Center of Ioannina

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Functional outcome after excision of heterotopic ossification about the knee in ICU patients.

Μitsionis GI, Lykissas MG, Kalos N, Paschos N, Beris AE, Georgoulis AD, Xenakis TA.

Int Orthop. 2009 Dec;33(6):1619-25

The objective of this study was to evaluate the degree of improvement in the range of movement in the knee joint, sitting ability, and overall ambulation in patients with heterotopic ossification of the knee joint who underwent surgical excision of ectopic bone. Between 1999 and 2006, 14 patients (23 joints) with significant heterotopic ossification of the knee joint that required surgery were evaluated. We compared the range of movement in the knee joint, sitting ability, and overall ambulation in the preoperative and postoperative periods using the Fuller and Keenan classification systems. Range of movement increased in 82% of cases (19 knee joints). Sitting ability improved in 13 patients (93%). Postoperatively, ambulation in eight patients (57%) was remarkably superior. In conclusion, resection of heterotopic ossification may significantly improve the range of movement in the knee joint, sitting ability, and overall ambulation.