Given a passage with a context and an answer, construct a question on the basis of the information present in the passage. Construct the question in such a way that (i) it is unambiguous, (ii) it is answerable from the passage, (iii) its answer is unique (iv) it answer uses text phrases from the passage. Avoid creating questions that (i) can't be answered correctly without actually understanding the passage and (ii) uses the same words or phrases given in the passage.
--------
Question: Context: A prospective radiographic analysis of deformity correction during the balloon kyphoplasty procedure.', 'To determine the spontaneous reduction of the deformity in prone position, the subsequent deformity correction by the inflatable bone tamp, and the overall deformity correction after deposition of the cement.', 'Fracture mobility has been shown to contribute to fracture reduction in vertebroplasty. Spontaneous reduction has not been taken into account in recently published series of balloon kyphoplasty, but it must be considered when performing vertebral augmentation and when reporting and interpreting the significance of vertebral height restoration.', 'A consecutive series of 39 osteoporotic vertebral compression fractures were treated in 30 patients. Lateral radiographs were taken and analyzed at six different time points: 1) Preoperative standing. During the kyphoplasty procedure, four consecutive radiographs were obtained: 2) after placing the patient in prone position on the operation table, 3) after inflation of the bone tamp (IBT), 4) after deflation and removal of the IBT, and 5) after deposition of the cement. 6) Standing lateral radiographs were taken after the procedure. All fractures were analyzed for improvement in sagittal alignment (Cobb angle, kyphotic angle, sagittal index, vertebral height), complications, and reduction of pain (VAS).', 'Placement of the patient in prone position displayed a significant spontaneous reduction in deformity of 6.5 degrees +/- 4.1 degrees Cobb angle. Inflation of the IBT demonstrated a further reduction of the fracture and a significant improvement of the Cobb angle of 3.4 degrees compared with baseline prone. After deflation and removal of the IBT and placement of the cement, no significant loss of fracture reduction was seen. Postoperative measurement of the Cobb angle by means of standing radiographs demonstrated a 3.1 degrees significant loss of reduction compared with the intraoperative measurement in prone position after cement application. Cement leaks occurred in 9 of 39 vertebral fractures. All patients subjectively reported immediate relief of their typical fracture pain. The VAS score significantly improved from 8.7 +/- 1.4 before surgery to 2.3 +/- 0.9.
Answer: The restoration of height in kyphoplasty is attributed to dynamic fracture mobility as well as to the expansion of the inserted balloon tamp.

Answer: Is balloon kyphoplasty effective in deformity correction of osteoporotic vertebral compression fractures?

Question: Context: For high-resolution microscopy, cells have to be analyzed through thin glass coverslips. Therefore, it is necessary to culture cells on coverslips for preservation of cell morphology. We found cell attachment and spreading to be relatively slow processes, even when cells were plated on coated coverslips. This slowness presents a problem, particularly when synchronized cell populations are used.', 'In this paper, we present a method that is based on glow-discharged carbon coating of coverslips which promotes rapid attachment and spreading of cells, enabling rapid analysis of cells after plating. Results obtained with carbon-coated coverslips were compared with those of other types of coating. Two fibroblast lines, an epithelial cell line, and a carcinoma cell line were tested.
Answer: All cell lines showed a rapid adhesion on carbon-coated coverslips. With fibroblasts we found the carbon coating to be superior to other coatings tested, mainly because the carbon did not influence cell morphology. Using synchronized or irradiated cells produced similar results. The superior performance of carbon coating is probably due to carboxylic groups on the glow-discharged carbon layer. The carbon layer does not interfere with microscopy or immunocytochemical staining procedures.

Answer: Does coating of coverslips with glow-discharged carbon promote cell attachment and spreading probably due to carboxylic groups?

Question: Context: Hepatic resection is well established as a potentially curative treatment for hepatic colorectal cancer metastases. However, only a small proportion of patients with liver metastases are suitable for resection because they either have extrahepatic disease, or the extent and/or the distribution of their hepatic disease would make excision impossible. We have previously described the use of cryotherapy for inadequate resection margins and lesions in the remaining lobe of the liver. Combining such cryodestructive techniques with resection offers the possibility of increasing the proportion of patients to whom potentially curative treatment can be offered. The aim of this study was to compare survival in patients treated with resection and cryotherapy against those of patients treated with resection alone. Potential prognostic variables were also examined.', 'Patients undergoing a hepatic resection with or without cryotherapy at our unit between April 1990 and July 1997 were identified from our database and their notes reviewed. Survival was estimated using the Kaplan-Meier method and compared using the Log rank test.', 'One hundred and seven patients were treated in total: 32 underwent resection alone, and 75 underwent resection combined with cryotherapy. There was no significant difference between the survival of patients treated with resection alone and those treated with resection and cryotherapy.
Answer: Edge and contralobe cryotherapy can be combined with hepatic resection to allow a greater proportion of patients with hepatic colorectal metastases to be offered treatment, and results in similar survival figures comparable to hepatic resection for at least 3 years.

Answer:
Does resection with cryotherapy of colorectal hepatic metastases have the same survival as hepatic resection alone?