The results of this study give a quantitative basis for the design of process internal bio-augmentation processes and the effect on the N-removal capacity of the treatment plant.
Three hundred sixteen patients treated with an external or internal maxillary sinus augmentation and a total of 863 implants in the Department of Oral and Maxillofacial Surgery, Johannes Gutenberg University, Mainz, Germany, between July 2002 and December 2007 were included in this retrospective study.
If surgery is required, an excisional procedure followed by reconstruction, or internal fixation with augmentation by methylmethacrylate, is preferred for metastases of the lower limbs; and posterior instrumentation procedures would be preferred in the spine if radiotherapy is not expected to be effective.
We present here the three year radiological and functional results of a prospective series of tibial plateau fractures treated with closed or open reduction, internal fixation and augmentation with an injectable novel hydroxyapatite and calcium sulfate bi-phasic ceramic bone substitute, CERAMENT™.
Inclusion criteria were histologically proven giant cell tumor lesions in the long bone of lower limbs treated with curettage and PMMA cement augmentation, with internal fixation as necessary and a minimum follow-up of 5 years.
The tree likelihood of locus l is Pr(D l | τ l, φ ) and can be evaluated using the peeling/pruning algorithm described by F elsenstein (1981), although we employ augmentation of internal nodes with repeat lengths.
Surgical treatments included wide excision (four patients), posterior laminectomy for decompression and posterior instrumentation (one patient), below-the-knee amputation (two patients), above-the-knee amputation (one patient), ray amputation (one patient) and intralesional excision plus internal fixation with cement augmentation (two patients) (Tables 1 & 2).
The rational for the experimental design is to simulate heterotypic stromal epithelial interactions that are created at the anastomotic site of intestinal-bladder augmentations and internal urinary diversions where the urothelium is in direct contact with the gastro-intestinal tract tissues.
This had failed union at previous attempt involving internal fixation and bone graft augmentation.
Open image in new window Fig. 1 Case 1: a Radiograph showing established proximal tibial non-union following stress fracture, failed treatment of internal fixation and bone graft augmentation.
