PET/CT Study of Temporal Variations in Blood Flow to the Femoral Head Following Low-energy Fracture of the Femoral Neck
| Autor: | Prashanth Ramachandra, Malhar N. Kumar, Pavan Belehalli |
|---|---|
| Rok vydání: | 2014 |
| Předmět: |
Male
Intra-Articular Fractures medicine.medical_treatment Avascular necrosis Femoral Neck Fractures Fracture Fixation Internal Femoral head Vascularity Femur Head Necrosis Predictive Value of Tests Fracture fixation medicine Humans Internal fixation Orthopedics and Sports Medicine Prospective Studies Aged Femoral neck Aged 80 and over Fracture Healing PET-CT business.industry Femur Head Middle Aged medicine.disease medicine.anatomical_structure Regional Blood Flow Positron-Emission Tomography Female Surgery medicine.symptom Tomography X-Ray Computed business Nuclear medicine |
| Zdroj: | Orthopedics. 37 |
| ISSN: | 1938-2367 0147-7447 |
| DOI: | 10.3928/01477447-20140528-57 |
| Popis: | Earlier studies on femoral neck fractures have assessed the blood flow in either the pre- or postoperative period and information is lacking regarding changes in vascular flow to the femoral head after injury. Sixty-two adults with low-energy intracapsular femoral neck fractures were studied prospectively. Mean patient age was 57.2 years (range, 45–82 years). All patients underwent positron emission tomography/computed tomography (PET/CT) prior to surgical intervention and 6 weeks after internal fixation. Internal fixation was done using cannulated cancellous titanium screws and serial follow-up radiographs were obtained (at monthly intervals for the first 3 months followed by 3 monthly intervals between radiographs up to 2 years). On the preoperative PET/CT, 13 patients showed intact vascularity, 31 showed total loss of vascularity, and 18 showed partial loss of vascularity of the femoral head. The 6-week postoperative PET/CT scan showed recovery of blood supply in 23 of the 31 patients with total loss of vascularity and 15 of the 18 patients with partial loss of vascularity of the femoral head. Eleven of 62 patients had total or partial avascularity at the 6-week postoperative PET/CT scan and all 11 patients showed evidence of avascular necrosis on plain radiographs at the end of 2 years. The association between the vascular status of the femoral head at 6 weeks and avascular necrosis at the end of 2 years was statistically significant ( P |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|