AI Article Synopsis
- Avascular necrosis of the femoral head is a serious condition resulting from inadequate blood supply, leading to bone collapse and arthritis if untreated.
- The treatment case presented involves a patient with traumatic femoral head necrosis, who received a pedicled bone flap graft fixed with a biodegradable pure Mg screw, resulting in improved hip function and reduced necrosis over two years.
- The discussion focuses on surgical methods, screw degradation, and patient recovery, concluding that the pure Mg screw fixation is an effective treatment option for young patients with femoral head necrosis.
Article Abstract
Introduction: The avascular necrosis of the femoral head represents the death of bone tissue due to the lack of blood supply. The disease has a progressive evolution; it leads to femoral head collapse and severe arthritis when left untreated. The application of a pedicled bone flap graft is an effective treatment for femoral head necrosis. A pure Mg screw is a kind of degradable screw that can fix the grafted bone flap and prevent long-term stress occlusion and secondary dissection.
Case Presentation: The report shows the results of the treatment of traumatic femoral head necrosis with a pedicled bone flap with pure Mg screw. A patient had avascular necrosis of the femoral head after 2 years of internal fixation of the femoral neck fracture. We removed the patient's internal fixation hollow nail, cleaned the necrotic bone tissue and took part of the same ipsilateral pedicle iliac bone graft in the femoral head defect with biodegradable pure Mg screw fixation. Within 2 years after the surgery, the patients had no significant progressive necrosis of the femoral head. Postoperative Harris scores showed that the patient's left hip function was significantly improved compared with his preoperative state. The pure Mg screw in the body had gradually degraded. After 2 years, the screw's diameter had been significantly reduced compared with 3 days after the surgery. The postoperative Harris score showed that the patient's left hip function was significantly improved compared with the second preoperative examination.
Discussion: The discussion includes the reasons for the choices of surgical approaches, the mode of pure Mg screw degradation and the postoperative functional assessment of the patient's left hip.
Conclusion: Pure Mg screw fixation pedicled bone flap transplantation is an effective surgical treatment for femoral head necrosis in young patients. Pure Mg screw is a biodegradable internal fixation device with good biocompatibility, which has a good clinical application prospects.
The Translational Potential Of This Article: Degradable pure Mg screw has the potential to preserve hip joint therapy for the treatment of femoral head necrosis.
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Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6551358 | PMC |
| http://dx.doi.org/10.1016/j.jot.2019.01.004 | DOI Listing |
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