Augmentation of fenestrated pedicle screws with cement in patients with osteoporotic spine
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Updated: Feb 10, 2026

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Published on: May 24, 2024
Mahmoud Abousayed1, Joseph Gamal Boktor1, Ahmed Maher Sultan1
1Department of Orthopedic Surgery, Kasr Al Ainy Medical School, Cairo University, Giza, Egypt.
Background:
Backing out and failure of pedicle screws in patients with osteoporosis is becoming a big problem due to wide use of these screws nowadays.
Purpose:
The aim of this study is to evaluate the purchase of fenestrated pedicle screws augmented with cement in patients with osteoporosis.
Study Design:
This was retrospective observational study.
Patients And Methods:
From May 2015 to January 2016, 25 patients with a poor bone stock condition underwent posterior fixation by fenestrated pedicle screws and cement augmentation. Assessment of pain improvement was done by visual analogue score (VAS) score while the long-term clinical outcome was assessed using Oswestry low back disability questionnaire (Oswestry disability index [ODI]). Implant stability was evaluated by plain radiography. Complications were evaluated in all cases.
Results:
All patients were followed up clinically and radiographically for a mean age of 24.84 months. There was a significant reduction in pain and improvement of the quality of life as detected using VAS scores and ODI questionnaire consecutively (P < 0.001). No radiological loosening or backing out of screws was observed. Cement leakage occurred in five cases.
Conclusion:
Augmentation of fenestrated screws with cement provided effective and lasting purchase in patients with osteoporosis. The only clinical complication strictly related to this technique was cement leakage.
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