Table of Contents    
Case Report
 
Simultaneous and spontaneous rupture of patellar tendon and contralateral quadriceps tendon in a patient with tertiary hyperparathyroidism: A case report
I López Zabala1, MC Pulido1, D Popescu1, JA Fernández-Valencia1
1Department of Orthopaedic Surgery Hospital Clínic Barcelona C/ Villarroel 170. 08036 Barcelona, Spain.

doi:10.5348/ijcri-2012-08-157-CR-4

Address correspondence to:
Ibon López Zabala
Department of Orthopaedic Surgery
Hospital Clínic Barcelona C/ Villarroel 170
08036 Barcelona
Spain
Phone: 00-34-93-227-55-33
Fax: 93 227 98 71
Email: lopez.ibon@gmail.com

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How to cite this article:
López-Zabala I, Pulido MC, Popescu D, Fernández-Valencia JA. Simultaneous and spontaneous rupture of patellar tendon and contralateral quadriceps tendon in a patient with tertiary hyperparathyroidism: A case report. International Journal of Case Reports and Images 2012;3(8):13–16.


Abstract
Introduction: Spontaneous bilateral ruptures of the extensor mechanism of the knee are rare injuries.
Case Report: A patient presented with bilateral rupture of the extensor mechanism of the knee in which a tertiary hyperparathyroidism was previously diagnosed. Tertiary hyperparathyroidism was related to a long-term dialysis for chronic renal failure and on admission, the parathyroid hormone level was 2332 pg/mL. The patient underwent surgery of the both knees and a satisfactory function was achieved. Subsequently, a parathyroidectomy was performed which resulted in a correction of the parathyroid hormone level.
Conclusion: Tertiary hyperparathyroidism must be ruled out in patients with chronic renal failure. On the other hand, patients with chronic renal failure and a known hyperparathyroidism need on going and effective management to prevent spontaneous tendon rupture. Clinicians can be aware that careful management of hyperparathyroidism can prevent this severe complication.

Key Words: Patellar tendon, Quadriceps, Hyperparathyroidism, Spoutaneous

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Author Contributions:
I López Zabala – Substantial contributions to conception and design, Acquisition of data, Analysis and interpretation of data, Drafting the article, Revising it critically for important intellectual content, Final approval of the version to be published
MC Pulido – Substantial contributions to conception and design, Analysis and interpretation of data, Revising it critically for important intellectual content, Final approval of the version to be published
D Popescu – Substantial contributions to conception and design, Analysis and interpretation of data, Revising it critically for important intellectual content, Final approval of the version to be published
JA Fernández-Valencia – Substantial contributions to conception and design, Analysis and interpretation of data, Revising it critically for important intellectual content, Final approval of the version to be published
Guarantor of submission:
The corresponding author is the guarantor of submission.
Source of support:
None
Conflict of interest:
Authors declare no conflict of interest.
Copyright:
© I López Zabala et al. 2012; This article is distributed the terms of Creative Commons Attribution License which permits unrestricted use, distribution and reproduction in any means provided the original authors and original publisher are properly credited. (Please see Copyright Policy for more information.)