Abstract:

OBJECTIVE: To explore the application value of multi-slice spiral CT three-dimensional reconstruction and posttreatment in knee joint fracture.
METHODS: A computer-based online search of PubMed database (http://www.ncbi.nim.nih.gov/PubMed) and CNKI database (www.cnki.net/index.htm) was performed for related articles published between 1995 and 2009, with key words “knee joint fracture, three-dimensional reconstruction, CT scan” in English and Chinese. Repetitive and outdated articles, review articles and Meta analysis were excluded. A total of 28 articles, including 14 Chinese and 14 English, were selected. A total of 50 patients with knee joint fracture underwent X-ray examination, multi-slice spiral CT scanning and posttreatment. Results of the three methods were compared in addition to comparison with intraoperative and postoperative observations.
RESULTS: Multi-slice spiral CT three-dimensional reconstruction and posttreatment exhibit significant clinical values in the diagnosis and treatment of knee joint fracture. Multi-plane reconstruction, surface shielding, volume rendering and maximum intensity projection can be used to enhance axial images. Case analysis showed that the diagnosis rate was 88% by X-ray, 100% by multi-slice spiral CT. So multi-slice spiral CT three-dimensional reconstruction can confirm diagnosis and correct typing.
CONCLUSION: Multi-slice spiral CT three-dimensional reconstruction can accurately display articular surface fracture that cannot be displayed on common X-ray films, and exhibit superior role in displaying articular cavity and articular surface fractures, identifying fracture type and joint injury over X-ray examination.