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Manipulation Under Anesthesia (MUA)

What is Manipulation Under Anesthesia?

This procedure, manipulation under anesthesia (MUA), is a non-invasive procedure increasingly offered for acute and chronic conditions, including: neck pain, back pain, joint pain, muscle spasm, shortened muscles, fibrous adhesions and long term pain syndromes. It is generally considered safe and is utilized to treat pain arising from the cervical, thoracic and lumbar spine as well as the sacroiliac and pelvic regions.

Manipulation under anesthesia uses a combination of specific short lever manipulations, passive stretches and specific articular and postural kinesthetic maneuvers in order to break up fibrous adhesions and scar tissue around the spine and surrounding tissue.

The manipulation procedures can be offered in any of the following ways:

  • Under general anesthesia
  • During mild sedation
  • Following the injection of anesthetic solutions into specific tissues of the spine.

The treatment is performed in a hospital or surgery center by licensed physicians with specialized training and certification specifically for the procedure. A team approach is required to have a safe and successful outcome.

The team includes the anesthesiologist, the prime physician/surgeon/chiropractor who performs the manipulation, and the first assistant, also a physician/chiropractor certified in manipulation under anesthesia. The procedure is commonly performed in a hospital or surgical center.

The combination of manipulation and anesthesia is not new, as this treatment has been part of the manual medical arena for more than 60 years.Manipulation Under Anesthesia is an established medical procedure with a CPT Code designate of 22505. This is noted in the American Medical Association's Current Procedural Terminology Publication.

Which patients should be considered for manipulation under anesthesia?

Certain neck, mid back, low back or other spinal conditions respond poorly to conventional care. One proposed theory for this is that, as a result of past or present injury, adhesions and scar tissue have built up around spinal joints and within the surrounding muscles and causes chronic pain.

Patients often undergo various treatments, such as physical therapy, chiropractic care, epidural injections, back surgery, or other treatments that do not address fibrous adhesions. Some patients feel temporarily better with these treatments, but their pain often returns.

In general, patients selected for manipulation under anesthesia are those who have received conservative care for six to eight weeks. If limited or no improvements in symptoms or objective findings have occurred, then manipulation under anesthesia may be an appropriate alternative.

Prior to treatment, protocols of diagnostic testing should document the nature of the diagnosis, support the need for treatment and eliminate questions of psychosocial factors that can influence pain responses. In addition to X-ray, MRI scan or CT scan, a musculoskeletal sonogram or nerve conduction velocity test may be ordered.

The proposed effects of

manipulation under anesthesia therapy include the following:

  • Breaking up scar tissue (adhesions) both in and around the spinal joints, commonly caused by multiple injuries or failed back surgery
  • Decreasing chronic muscle spasm
  • Overcoming super sensitivity of injured areas, making the patient unable to cooperate for effective treatment
  • Stretching persistent shortened muscles, ligaments and tendons
  • Relieving pain and radiating symptoms from damaged intervertebral discs. Some disc injuries are serious enough to require surgery, but these types of injuries are relatively infrequent.

Indications and Contraindications

for chiropractic manipulation

  1. Chrisman et al: "A study of the results following manipulation in lumbar disc syndrome." Journal of bone and Joint Surgery 46A, 1964.
  2. Saal et al: "The natural history of lumbar disc extrusions treated non-operatively.: Spine, Vol 15, 1990.
  3. Kohlbeck FJ, Haldeman S, "Medication-assisted spinal manipulation." The Spine Journal, Volume 2 (4), 2002. 

In general, patients selected for manipulation under anesthesia have received a minimum of six to eight weeks of conservative care. Additionally, there are a number of specific indications and contraindications that need to considered prior to undertaking manipulation under anesthesia, including:


  • Neck, mid back and low back pain
  • Chronic muscle pain and inflammation
  • Acute and chronic muscle spasm
  • Decreased spinal range of motion
  • Chronic fibrositis
  • Nerve entrapment
  • Pseudo-sciatica
  • Sciatica where disc bulges/herniations
  • are contained less than 8mm
  • Failed back surgery
  • Chronic occipital or tension headaches
  • Conditions where narcotic pain
  • relievers are of little benefit
  • Traumatic torticullis
  • RSD


Contraindication to anesthesia as determined by current medical literature and is the responsibility of the licensed medical co-manager (anesthesiologist).

Contraindications to manual manipulation of high velocity, low velocity or soft tissue techniques as established by current literature relative to technique specific for articular derangements, bone weakening and destruction disorders, circulatory and cardiovascular disorders, or neurological disorders.

Specific contraindications to manipulation of the spine under anesthesia include:

  • Malignancy with metastasis to bone
  • Tuberculosis of the bone
  • Fractures
  • Acute arthritis
  • Acute gout
  • Uncontrolled diabetic neuropathy
  • Syphilitic articular or periarticular lesions
  • Gonorrheal spinal arthritis
  • Excessive spinal osteoporosis
  • Evidence of cord or caudal compression by tumor, ankylosis and malacia bone disease.

Post Operative Care

  • The patient should experience an immediate increase in range of motion, even though there is usually some temporarily added muscle soreness similar to the feeling of having completed an aggressive exercise session.  In cases involving symptoms caused by disturbance from adhesions and shortened tissues there should be a significant change, either immediately or within a short period following the procedures.

    In efforts to minimize the reformation of adhesions, passive manipulation and active exercises are prescribed.  Some use of additional therapies may also be prescribed, such as:

    • Electrical muscle stimulation
    • Ultrasound
    • Hot moist packs
    • Massage

    The most important post operative care is an active rehabilitation program, starting within one to two weeks after the manipulation under anesthesia procedure and lasting for a minimum of four to six weeks.

Supporting studies

There are several research studies about the effectiveness of manipulation under anesthesia, including:

  1. 83% of 600 patients with EMG verified radiculopathies reported significant improvement - Robert Mensor, MD
  2. Patients that had back pain for a minimum of 10 years reported an 87% recovery rate after MUA - 1987 with Ongly et al
  3. 51% of patients with unrelieved symptoms after conservative care had been exhausted reported good to excellent results three years post MUA - Donald Chrisman, MD
  4. 71% of 723 MUA patients had good results (return to normal activity relatively symptom free) and 25.3% had fair results (return to normal activity with slight residuals) and that flexibility, elasticity and range of motion can be restored following MUA - Bradford and Siehl
  5. 83% of 517 patients treated with MUA responded well - Paul Kuo, MD professor of Orthopedic Surgery
  6. Krumhansi and Nowacek reported on an MUA study done on 171 patients who experienced constant intractable pain for several months to 18 years. All of the patients of the study failed other conservative intervention. The results of the study showed that 25% of the patients had no pain, 50% were much improved with pain markedly decreased, 20% were better and could tolerate their pain but it interfered with work and recreation. Failures comprised 5% where there was minimal or no pain relief periods.

The medical literature demonstrates that for over forty years chronic neuromuscular skeletal conditions that have failed the conservative protocol may respond well to manipulation under anesthesia.

The overall effectiveness of spinal manipulation under anesthesia has been reported by researchers with success rates varying according to case selection criteria.

Diagnosis of herniated disc reported excellent to good results in:

60% - PC Colonna and ZB Friendenberg: 1949
64% - Merrill C Mensor, MD: 1949
60% - Donald Sielh, DC: 1963

Diagnosis of myofibrositis reported excellent to good results in:

96.3% - Donald Siehl, OD: 1963
75% - BR Krumhansi and CJ Nowacek: 1988

Manipulation Under Anesthesia References

  1. Greenman, PE: Manipulation with the patient under anesthesia. J. Amer. Osteopathic Assoc., 92(9):1159 -1167, Sept. 1992.
  2. West, D.C., C.C.R.D., Mathews, M.D., Miller, PA-C, Kent, M.D. "Effect of Management of Spinal Pain in 200 Patients Evaluated for Manipulation Under Anesthesia." J. Neurol Oethop Med Surg. (1998) 18: pp. 31-42.
  3. Guidelines for Chiropractic Quality Assurance and Practice Parameters: Proceedings of the Mercy Center Consensus Conference, Burlingame, CA, January 25 - 30, 1992. S Haldeman et al (eds.), Gaithersburg, MD: Aspen Publishers, Inc. 1993.
  4. Dreyfuss P, et al. MUJA: Manipulation under joint anesthesia/analgesia: A treatment approach for recalcitrant low back pain of synovial joint origin. J Manipulative Physiol Ther. 1995;18:537-546.
  5. Davis CG. Chronic cervical spine pain treated with manipulation under anesthesia. J Neuromusculoskeletal Syst. 1996;4:102-115.
  6. Francis R. Spinal manipulation under general anesthesia: A chiropractic approach in a hospital setting. J Am Chiro Assoc. 1989; Dec:39-41.
  7. Alexander GK. Manipulation under anesthesia of lumbar post-laminectomy syndrome patients with epidural fibrosis and recurrent HNP. J Am Chiro Assoc. 1993;June:79-81.
  8. Dan NG, Saccasan PA. Serious complications of lumbar spinal manipulation. Med J Aust. 1983;2(12):672-673.
  9. Hughes BL.Management of cervical disk syndrome utilizing manipulation under anesthesia. J Manipulative Physiol Ther. 1993;16:174-181.
  10. Aspegren DD, et al. Manipulation under epidural anesthesia with corticosteroid injection: Two case reports.J Manipulative Physiol Ther. 1997;20(9):618-621.

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