Osteopathy & chiropathy 

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Osteopathy and chiropractic ( the manipulative therapies) share a common origin. Their roots can be found in folk traditions of "bone setting," and both were systematised in the late 19th century in the United States:

 

Daniel D Palmer, the founder of chiropractic, is said to have met with Andrew Taylor Still, the founder of osteopathy, before setting up his own school. The therapies remain relatively similar, and many textbooks and journals are relevant to both. The term "manipulative therapy" refers to both osteopathy and chiropractic.

Background

Osteopathy and chiropathy are therapies of the musculoskeletal system: practitioners work with bones, muscles, and connective tissue, using their hands to diagnose and treat abnormalities of structure and function.

The best known technique is the "high velocity thrust", a short, sharp motion usually applied to the spine. This manoeuvre is designed to release structures with a restricted range of movement. High velocity thrusts often produce the sound of joint "cracking," which is associated with manipulative therapy. There are various methods of delivering a high velocity thrust. Chiropractors are more likely to push on vertebrae with their hands, whereas osteopaths tend use the limbs to make levered thrusts. That said, osteopathic and chiropractic techniques are converging, and much of their therapeutic repertoire is shared.

Practitioners also use a range of soft tissue techniques that do not involve high velocity’ thrusts. For example, the "muscle energy techniques" (known as "proprioceptive neuromuscular facilitation" by physiotherapists) make use of post-isometric relaxation to increase restricted ranges of movement.

Osteopaths and chiropractors may also use what are termed "functional techniques," such as treating hip pain by applying a gentle, prolonged pull to the leg while slowly rotating it in the hip joint. If a restriction is detected, however slight, the leg is held at the point of restriction until a release of muscle tension occurs. Techniques like these are based on an understanding of subtle neuromuscular behaviour, which conforms to mainstream theory. In practice, they also rely on finely developed palpatory skills.

Some osteopaths also practice a technique known as cranial osteopathy or craniosacral therapy. Practitioners place their hands on the cranium and sacrum and gently handle the bones of the skull. They say that, by feeling for and working with subtle rhythmic pulsations of the cerebrospinal fluid, they can correct disturbances in the neuromuscular system. There are some therapists, usually known as craniosacral therapists, who use similar techniques but who do not have an osteopathic background.

A relatively recent branch of chiropractic, the McTimoney school, has developed some of its own manipulative techniques that do not place as great an emphasis on high velocity thrusts as do osteopathy and mainstream chiropractic.

With the exception of cranial osteopathy, many of the treatment methods used by osteopaths and chiropractors are similar to techniques used by those physiotherapists with additional training in manipulative therapy. From a general practitioners perspective, there are few important practical differences between the three types of practitioner.

  

What happens during a treatment?

Manipulative therapists take a history, palpate for significant changes in muscle tension and skin circulation, and look for any restricted movements in order to diagnose musculoskeletal abnormalities and ‘neuromuscular dysfunction" (such as "trigger points or signs of "pain-spasm cycles"). Chiropractors may use x rays to assist diagnosis, whereas osteopaths do so largely only for the purposes of excluding serious pathology.

A typical treatment session lasts 15-30 minutes, although first consultations may take longer. A variety of the techniques described above will be used. Not more than four high velocity thrusts are usually given in a single treatment session. A course of chiropractic treatment for back pain might consist of six sessions, initially frequent and then at weekly intervals. Osteopaths are more likely than chiropractors to treat on an "as needed" basis.

Therapeutic scope

Both osteopathy and chiropractic were originally regarded as complete systems of medicine. For example, Andrew Taylor Still treated infectious diseases and blindness among a range of conditions. Interestingly, the treatment of back problems features only rarely in his writings. Similarly, early chiropractors believed that most diseases could be attributed to misalignments of the spine and were therefore amenable to treatment with chiropractic.

Contemporary practitioners have moved away from this position and concentrate primarily on rnusculoskeletal disorders. Low back pain is the most common presenting complaint. Guidelines from the Royal College of General Practitioners recommend physical therapy (any of the manipulative techniques) within six weeks of the start of persisting uncomplicated back pain.

Other conditions often seen include neck and shoulder pain, sports injuries, repetitive strain disorders, and headache. Practitioners also treat various conditions such as arthritis; although they cannot affect disease pathology or progression, they claim to be able to treat secondary symptoms such as pain from associated muscle spasm. Cranial osteopathy has a particular reputation for treating children with conditions such as infantile colic, constant crying, and behavioral problems.

 

Research evidence

There is considerable evidence from randomized controlled trials of the effectiveness of spinal manipulation for back and neck pain. Although this evidence is largely positive, it has been criticized for failing to exclude non-specific effects of treatment.

In the best-known UK trial 741 patients with low back pain were randomized to chiropractic or hospital outpatient care. In both groups the treating practitioners were free to treat patients as they saw fit. The authors concluded that "chiropractic almost certainly confers worthwhile, long term benefit." However, a recent systematic review of this and similar trials highlights methodological weaknesses, such as the fact that commonly used outcome measures such as pain and disability scores are assessed by patients and therefore unblended.

In one trial that did involve blinded assessment of outcome, patients with back or neck pain were randomized to routine general practitioner care, placebo (deactivated heat treatment), physiotherapy, or manipulation. Physiotherapy and manipulation was superior to physiotherapy at one year follow up.

In addition to effects on back and neck pain, randomised trials have also indicated that manipulative treatment is beneficial for headache, including migraine. However, the number of studies is small, so further work to confirm these results is needed. There is little or no reliable evidence of beneficial effects for many of the other musculoskeletal conditions that are commonly treated.

Apart from dysmenorrhoea, for which a small number of trials have shown a positive effect, current evidence suggests that manipulative therapy is not of benefit for problems related to smooth muscles or viscera, such as asthma and hypertension.

There has been little research on cranial osteopathy or McTirnoney chiropractic.

 

Safety of osteopathy and chiropractic

The most important potential adverse effects of osteopathy and chiropractic are stroke and spinal cord injury after cervical manipulation. Estimates of such severe adverse events vary widely, ranging from in 20 000 patients undergoing cervical manipulation to 1 per million procedures. In recent years the osteopathic and chiropractic professions have shown greater appreciation of the risks of cervical manipulation, and it is possib1e that improved practice is leading to a reduction in the rate of severe complications.

More common adverse effects (25-50% of all patients) are mild pain or discomfort at the site of manipulation, slight headache, and fatigue; 75% or more of such complaints resolve within 24 hours. Contraindications to various manipulative techniques have been developed by the appropriate professional bodies, and practitioners are trained to screen patients and assess individual risk factors. Even when some techniques, such as high velocity thrusts, are contraindicated, other manipulative treatments may be safe.

 

Practitioners

Osteopathy’ and chiropractic are almost exclusively based in the community and in the private sector. Many practitioners work alone, often from converted rooms in their own homes. Others work in-group clinics, in multidisciplinary practices, or in general practices. Some independent manipulative practitioners have established contracts with health authorities, fund holding practices, or primary care groups. Most private health insurance schemes now offer some cover for manipulative treatment.

 Regulation

Osteopathy and chiropractic are the only two complementary therapies that are regulated by statute. Two acts of parliament passed in the mid-1990s established a General Osteopathic Council and a General Chiropractic Council with the aim of regulating the professions by the millennium. These organizations operate in a similar way to the General Medical Council and have the authority to remove practitioners from the register in disciplinary hearings.

Training

Most osteopaths take a four-year, full time course leading a BSc degree (BOst). Chiropractors undertake a four to five year, full time training, which includes a BSc in human sciences and chiropractic and a year of postgraduate training in an approved practice, leading to a diploma in chiropractic (DC). McTimoney and McTimoney Corley practitioners complete a four year, part time course. Biological and clinical sciences form a substantial component of all these training courses. Sometimes chiropractors are referred to as "doctors of chiropractic." This is purely a courtesy title and has been used since chiropractic began.

Several organizations run training courses in manipulative techniques specifically for conventional healthcare practitioners. The Manipulative Association of Chartered Physiotherapists runs and accredits postgraduate training in manipulation for physiotherapists. The British Institute of Musculoskeletal Medicine runs courses for medically qualified practitioners but is not a regulatory body. The London College of Osteopathic Medicine organizes a one year, full time osteopathic training course for registered medical practitioners.

The ABC of complementary medicine is edited and written by Catherine Zollman and Andrew Vickers. Catherine Zollman is a general practitioner in Bristol, and Andrew Vickers will shortly take up a post at Memorial Sloan-Kettering Cancer Center, New York. At the time of writing, both worked for the Research Council for Complementary Medicine, London. The series will be published as a book in Spring 2000.

The pictures of manipulative techniques and of cranial osteopathy are reproduced with permission of BMJ/Ulrike Preuss. The picture of a physiotherapist is reproduced with permission of Science Photo Library.

 

Educational organizations for doctors

British Institute of Musculoskeletal Medicine
27 Green Lane, Northwood, Middlesex HAG 2PX.
Tel/Fax: 01923 220999
Email: BIMM@compuserve.com

Society of Orthopedic Medicine
Society of Orthopedic Medicine
c/a Amanda Sherwood, administrator.
Tel: 01454 610255  
URL: wwwsoc-ortho-med.org 

London College of Osteopathic Medicine
8-10 Boston Place, London NW 1 6QH.
Tel: 0171 262 5250. Fax: 0171 723 7492

 

Further reading

• Burn L. A manual of medical manipulation. Newbury: Petroc Press, 1998
• DiGiovanna EL, Schiowitz 5, Dowling D. An osteopathic approach to diagnosis and treatment. Plymouth: Lippincott Raven, 1996
• Kaptchuk TJ, Eisenberg DM. Chiropractic: origins, controversies and contributions. Arch Intern Med 1998; 158:2215-24

Contraindications to high velocity thrusts

ABSOLUTE

Acute inflammatory arthropathies
Acute fracture or dislocation
Ligament rupture and instability
Unstable odontoid peg
Infection
Vertebrobasilar arterial insufficiency
Aneurysm
Acute myelopathy
Acute cauda equina syndrome

RELATIVE

Spondylolisthesis with ongoing slippage
Articular hypermobility
Post-surgical joints with clinical signs of acute inflammation or istability
Demineralisation
Benign bone tumours
Anticoagulants

NO CONTRAINDICATION

Subacute inflammatory arthropathies
Osteoarthritis
Spondylolisthesis with no change in slippage
Post-surgical joints with no sings of instability
Acute injuries of soft and bony tissues
Scoliosis

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