Tessys method
Encyclopedia
The Tessys method is a minimally invasive surgical procedure
for the treatment of herniated discs
.
removes the herniated portions of the disc using posterior lateral endoscopic
access. This surgical method for spinal disc herniations
is especially gentle for the patient. During the procedure, the patient is positioned either in the lateral or prone position and local anesthetic is administered, usually in combination with sedation. The patient remains responsive and typically, general anesthesia is not necessary. The surgeon removes the herniated disc tissue through an access tube of mere millimeters via the intervertebral foramen. With special instruments, the surgeon progressively and gently dilates to access the disc without disrupting the surrounding muscles or conjunctive tissue.
, CT Scans and/or X-Ray
. Performing a discogram during the surgery procedure provides additional confirmation of the patient’s anatomy and the position of the disc prolapse.
The access to the prolapse is achieved using a three-step guide wire technique: The surgeon gradually dilates through the soft tissue with the aid of C-Arm radiographic monitoring and stretches the foramen step-by-step, with little or no disturbance to the surrounding muscles and nerves. Utilizing Tessys via nature’s entry point, also known as Kambin’s Triangle, preserves the stability of the spinal column.
The endoscope features a slim working channel to guide instruments to the anatomy. The surgeon leads the endoscope through the working tube while in surgery. The camera emits pictures and/or video of the operating field to a monitor, while the surgeon uses special surgical instruments to remove the herniated disc material safely, with precision.
Invasiveness of surgical procedures
There are three main categories which describe the invasiveness of surgical procedures. These are: non-invasive procedures, minimally invasive procedures, and invasive procedures ....
for the treatment of herniated discs
Spinal disc herniation
A spinal disc herniation , informally and misleadingly called a "slipped disc", is a medical condition affecting the spine due to trauma, lifting injuries, or idiopathic, in which a tear in the outer, fibrous ring of an intervertebral disc allows the soft, central portion A spinal disc herniation...
.
Concept
With the Tessys method, the surgeonSurgeon
In medicine, a surgeon is a specialist in surgery. Surgery is a broad category of invasive medical treatment that involves the cutting of a body, whether human or animal, for a specific reason such as the removal of diseased tissue or to repair a tear or breakage...
removes the herniated portions of the disc using posterior lateral endoscopic
Endoscopy
Endoscopy means looking inside and typically refers to looking inside the body for medical reasons using an endoscope , an instrument used to examine the interior of a hollow organ or cavity of the body. Unlike most other medical imaging devices, endoscopes are inserted directly into the organ...
access. This surgical method for spinal disc herniations
Spinal disc herniation
A spinal disc herniation , informally and misleadingly called a "slipped disc", is a medical condition affecting the spine due to trauma, lifting injuries, or idiopathic, in which a tear in the outer, fibrous ring of an intervertebral disc allows the soft, central portion A spinal disc herniation...
is especially gentle for the patient. During the procedure, the patient is positioned either in the lateral or prone position and local anesthetic is administered, usually in combination with sedation. The patient remains responsive and typically, general anesthesia is not necessary. The surgeon removes the herniated disc tissue through an access tube of mere millimeters via the intervertebral foramen. With special instruments, the surgeon progressively and gently dilates to access the disc without disrupting the surrounding muscles or conjunctive tissue.
History
The Tessys method was developed during the early 2000s. As of January 2011, more than 50 hospitals and surgery centers in Germany are using the Tessys method; Worldwide approximately 200 surgical facilities.Indication
The Tessys method is suitable for most prolapsed discs, regardless of the anatomical position. Another spinal indication for the Tessys procedure would be Cauda Equina Syndrome, in a case where conservative methods of treatment failed to ameliorate the pain, or if only surrounded nerves are affected. Every intervertebral surgery requires a prior detailed discussion with the patient and imaging diagnostics such as MRIMagnetic resonance imaging
Magnetic resonance imaging , nuclear magnetic resonance imaging , or magnetic resonance tomography is a medical imaging technique used in radiology to visualize detailed internal structures...
, CT Scans and/or X-Ray
X-ray
X-radiation is a form of electromagnetic radiation. X-rays have a wavelength in the range of 0.01 to 10 nanometers, corresponding to frequencies in the range 30 petahertz to 30 exahertz and energies in the range 120 eV to 120 keV. They are shorter in wavelength than UV rays and longer than gamma...
. Performing a discogram during the surgery procedure provides additional confirmation of the patient’s anatomy and the position of the disc prolapse.
Surgical Procedure
To remove a herniated disc, the Tessys method uses a lateral, transforaminal, endoscopic access path via the intervertebral foramen. The surgery takes about 45 minutes. During the procedure, the patient is either in the lateral or prone position.The access to the prolapse is achieved using a three-step guide wire technique: The surgeon gradually dilates through the soft tissue with the aid of C-Arm radiographic monitoring and stretches the foramen step-by-step, with little or no disturbance to the surrounding muscles and nerves. Utilizing Tessys via nature’s entry point, also known as Kambin’s Triangle, preserves the stability of the spinal column.
The endoscope features a slim working channel to guide instruments to the anatomy. The surgeon leads the endoscope through the working tube while in surgery. The camera emits pictures and/or video of the operating field to a monitor, while the surgeon uses special surgical instruments to remove the herniated disc material safely, with precision.
Advantages
- Minimally-invasive surgical access: the risks of bleeding, infection and nerve injury are reduced
- Less post-operative pain: no wound or muscle pain
- Short recovery period and fast return to active lifestyle
- No general anesthetic necessary: the risks of nerve injury or thrombosis are significantly reduced; less cardiac cycle stress
- Immediate pain relief directly after the surgery procedure in 90 % of cases
- Direct access to the sequester of the herniated disc
- Cost-saving method due to the reduced length of hospital stay
Disadvantages
- Steeper learning curve compared to open surgery techniques
- Costs of instruments and technologies
- Technically demanding surgical procedure
Studies
Studies document the advantages and the success of minimally invasive endoscopic spine surgery. The US research clinic, “The Cleveland Foundation” agrees that the recovery period in patients treated with the Tessys method is accelerated by several weeks to months in comparison to conventionally treated patients. Many other studies document a success rate of more than 93%.Literatur
- F. Alfen et. al., Developments in the Area of Endoscopic Spine Surgery. In European Musculoskeletal Review 2006
- M. Iprenburg, Transforaminal Endoscopic Surgery - Technique and Provisional Results in Primary Disc Herniation. In European Musculoskeletal Review 2007
- K. Lewandrowski, Pre-operative Planning for Endoscopic Lumbar Foraminal Decompression - A Prospective Study. In European Musculoskeletal Review 2006
- M. Iprenburg and Dr. Alexander Godschalx, Transforaminal Endoscopic Surgery in Lumbar Disc Herniation in an Economic Crisis - The TESSYS Method. In US Musculoskeletal Review 2009
- R. Morgenstern, Transforaminal Endoscopic Stenosis Surgery – A Comparative Study of Laser and Reamed Foraminoplasty. In European Musculoskeletal Review 2007
- M. Schubert, Dr. Thomas Hoogland, Endoscopic Transforaminal Nucleotomy with Foraminoplasty for Lumbar Disk Herniation. In European Musculoskeletal Review 2006