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. 2008 Sep;9(3):159-62.
doi: 10.1007/s10195-008-0002-x. Epub 2008 May 1.

Simultaneous chronic rupture of quadriceps tendon and contra-lateral patellar tendon in a patient affected by tertiary hyperparatiroidism

Affiliations

Simultaneous chronic rupture of quadriceps tendon and contra-lateral patellar tendon in a patient affected by tertiary hyperparatiroidism

Giuseppe Grecomoro et al. J Orthop Traumatol. 2008 Sep.

Abstract

Spontaneous ruptures of the extensor mechanism of the knee are very rare. They tend to increase considerably in patients with metabolic diseases such as chronic renal failure, hyperparathyroidism, diabetes, gout, and systemic lupus erythematosus. The reported case regards a 48-year-old man with chronic, spontaneous and simultaneous quadriceps, and contra-lateral patellar tendon rupture. The patient suffered from chronic renal failure and for the past year from tertiary hyperparathyroidism. Ruptured tendons were repaired and both knee were evaluated monthly for the next 12 months. Good functional recovery was achieved on both knees without relapse. This case emphasizes the importance of long-term high parathyroid hormone level in the etiology of tendons ruptures.

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Figures

Fig. 1
Fig. 1
Right knee, patella alta
Fig. 2
Fig. 2
Rx of both knees shows patella alta on the right side and a patella baja on the left side

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