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  • Book
    Dong Hwa Heo, Cheol Woong Park, Sang Kyu Son, Jin Hwa Eum, editors.
    Summary: Biportal endoscopic spine surgery has been rapidly developed recently, and Unilateral biportal endoscopic spine (UBE) surgery may be new stream in spine surgery. UBE surgery is a new concept of surgery that is different from the existing one portal endoscopic surgery, and has the advantage of being familiar with spinal surgeons as the surgical anatomy is similar to a general surgical method, and the learning curve period is short. The 4mm diameter endoscope provides a very clear image, and it can be safely operated under magnified and clear endoscopic view. It is also available to use general surgical instruments in addition to endoscopic surgical instruments during UBE approaches. Currently it is being performed not only in the lumbar spine, but also in the cervical and thoracic spine. In addition, simple laminectomy, disc removal, and spinal fusion are possible. With the advancement of UBE surgery, spinal surgeons from various countries have been performing UBE in recent years, and it is gradually spreading to the world. This will be the first book summarizing from basic to advanced techniques with abundant illustrations and video aid for easy understanding. .

    Contents:
    1. Introduction of UBE
    (1) History
    (2) Basic concept
    (3) Instruments and setting
    2. Lumbar disc herniation treated by UBE
    (1) Central and paracentral HNP
    (2) Foraminal and extraforaminal HNP
    (3) Contralateral approach
    (4) Recurred disc herniation
    3. Lumbar stenosis treated by UBE
    (1) Central or lateral recess stenosis
    (2) Contralateral approach
    (3) Foraminal stenosis
    (4) Far out syndrome
    4. Lumbar interbody fusion by UBE
    (1) Usual TLIF
    (2) Ex TLIF
    (3) Fusion extension
    (4) Hybrid fusion surgery
    5. Cervical and thoracic lesion by UBE
    (1) cervical posterior foraminotomy
    (2) cervical laminectomy
    (3) Thoracic discectomy
    (4) Thoracic laminecotmy.
    Digital Access Springer 2022
  • Article
    Groth T, Tengström B.
    Ups J Med Sci. 1978;83(1):53-63.
    Clearance of sodium iothalamate was estimated from plasma elimination curves obtained from 90 patients having varying renal function, after a single intravenous injection of 125I-sodium iothalamate. The usefulness of sodium iothalamate as a GFR-indicator with this technique was tested by a strict statistical comparison with conventional inulin clearance as a reference. The regression line, covering the clearance range 2-163 ml min-1, Clinulin = 1.08.Clsodiumiothalamate-3.7, (n = 84, r = 0.85, SEE = 2.3 ml.min-1) was not significantly different from the identity line, which means (i) that extrarenal elimination could not be detected, and (ii) that I125-sodium iothalamate should be regarded as a useful glomerular marker for single intravenous injection studies. An open two-compartment model of mamillary type was found to give an adequate representation of the plasma disappearance curve. The results are not critically dependent on the choice of approximating function. The method by Sapirstein et al., the method by Nosslin and a power-law method were used for comparison and were found to give the same results. However, the present type of curve fitting analyses requires frequent blood sampling or external counting over a long period in order to give reliable estimates of GFR. This circumstance makes these methods less attractive for clinical use.
    Digital Access Access Options