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| Name = Scheuermann's disease
| Name = Scheuermann's disease
| Image = Scheuermanns70.jpg
| Image = Scheuermanns70.jpg
| Caption = A 25 year old male presented with Scheuermann's disease, showing different angular measurement; a kyphotic curve measured at ~70 degrees. The normal range is typically 20-50 degrees. Notice the signature vertebral 'wedging' in the 4 lower thoracic vertebrate, as well as the compensating [[lordosis|lordotic]] curve. The rest of the spine is otherwise normal
| Caption =
| DiseasesDB = 11845
| DiseasesDB = 11845
| ICD10 = {{ICD10|M|42|0|m|40}}
| ICD10 = {{ICD10|M|42|0|m|40}}

Revision as of 16:02, 25 January 2011

Scheuermann's disease

Scheuermann’s disease is a self-limiting skeletal disorder of childhood. It is also known as Sherman's Disease, Scheuermann’s kyphosis (since it results in kyphosis), Calvé disease and Juvenile Osteochondrosis of the Spine. It is named after Holger Werfel Scheuermann.[1][2][3] Scheuermann's disease describes a condition where the vertebrae grow unevenly; that is, the anterior angle is often greater than the posterior. This uneven growth results the signature "wedging" shape of the vertebrae, causing kyphosis.

Presentation

Though there are different explanations for the cause of structural kyphosis, Scheuermann's disease, in a medical context, is basically considered to be a a form of juvenile osteochondrosis of the spine. It is found mostly in teenagers and presents a significantly worse deformity than postural kyphosis. Patients suffering with Scheuermann’s kyphosis cannot consciously correct their posture. The apex of their curve, located in the thoracic vertebrae, is quite rigid. The sufferer may feel pain at this apex, which can be aggravated by physical activity and by long periods of standing or sitting; this can have a significantly detrimental effect to their lives as their level of activity is curbed by their condition and they may feel isolated or uneasy amongst their peers if they are children, depending on the level of deformity.

In addition to the pain associated with Scheuermann's disease, many sufferers of the disorder have loss of vertebral height, and depending on where the apex of the curve is, may have a visual 'hunchback' or 'roundback'. It has been reported that curves in the lower thoracic region cause more pain, whereas curves in the upper region present a more visual deformity. Nevertheless, it is typically pain or cosmetic reasons that prompt sufferers to get help for their condition. In studies, kyphosis is better characterized for the thoracic spine than for the lumbar spine.[4][5]

The seventh and tenth thoracic vertebrae are most commonly affected. It causes backache and spinal curvature. In very serious cases it may cause internal problems and spinal cord damage, but these cases are extremely rare. The curvature of the back decreases height, thus putting pressure on internal organs, wearing them out more quickly than the natural aging process; surgical procedures are almost always recommended in this case.

Comorbid Conditions

Many with Scheuermann's disease often have a resulting lordosis in the lumbar spine which is greater than normal; this is the body's natural way to compensate for the kyphotic curve above. Often patients have tight hamstrings, which, again, is related to the body compensating for excessive spinal curvative. In addition, it has been suggested that between 20-30% of patients with Scheuermann's Disease also have scoliosis, though most cases are negligible. In more serious cases, however, the combination is classified as a seperate condition known as kyphoscoliosis.

Causes

The cause is not currently known, and the condition appears to be multifactorial.[6] Several candidate genes (such as COL1A2) have been proposed and excluded.[7]

Conservative treatment

Scheuermann's disease is self-limiting after growth is complete, meaning that it generally runs its course and never presents further complication. Typically, however, once the patient is fully grown, the bones will maintain the deformity. For this reason, there are many treatment methods and options available that aim to correct the kyphosis while the spine is still growing, and especially aim to prevent it from getting any worse.

While there is no explanation for what causes Scheuermann's Disease, there are ways to treat it. For decades there has been a lot of controversy surrounding treatment options. For less extreme cases, manual medicine, physical therapy and/or back braces can help reverse or stop the kyphosis before it does become severe. Because the disease is often benign, and because back surgery includes many risks, surgery is usually considered a last resort for patients. However in severe or extreme cases sometimes patients may be treated through an extensive surgical procedure, in an effort to prevent the disease from worsening or harming the body.

In Germany, a standard treatment for both Scheuermann's disease and lumbar kyphosis is the Schroth method, a system of specialized physical therapy for scoliosis and related spinal deformities.[8] The method has been shown to reduce pain and decrease kyphotic angle significantly during an inpatient treatment program.[9][10]

Surgery for Scheuermann's Disease

Scheuermann's disease can be successfully corrected with surgical procedures, almost all of which include spinal fusion and hardware instrumentation, i.e., rods, pedicle screws, etc. While many patients are typically interested in getting surgery for their correction, it is important to realize the surgery aims to reduce pain, and not cosmetic defect. As always, surgical intervention should be used as a last resort once conservative treatment fails or the patient's health is in imminent danger as any surgical procedure is not without risk; however, the chances of complication are relatively low and the surgeries are often successful.

One of the largest debates surrounding Scheuermann's disease correction is the use of very different correction procedures. There are different techniques to correct kyphosis; usually the differences being posterior/anterior entry or posterior entry (rear) only. The classic surgical procedure partially entails entering two titanium rods, each roughly one and a half feet long, into the back on either side of the spine. Eight titanium screws and hardware are drilled through the bone and secures them in place onto either side of the spine. On the internal-facing side of the spine, ligaments (which can be too short, pulling the spine into the general shape of kyphosis) must be surgically cut or released, not only stopping part of the cause of the kyphosis, but also allowing the titanium rods to pull the spine into a more natural position. Normally, the damaged discs between the troubled vertebrae (wedged vertebrae) are removed and replaced with cartilage from the hip or other parts of the vertebrae, which once healed or 'fused' will solidify. The titanium instrumentation holds everything in place during healing and is not necessary once fusion completes. Recovery begins in the hospital and depending on whether the operation is one or two stage the patient can expect to be in hospital for minimum of a week possibly longer depending on recovery. They will then often be required to wear a brace for several months to ensure the spine heals correctly leaving the patient with the correct posture. The titanium instrumentation can stay in the body permanently, or be removed years later. Patients undergoing surgery for Scheuermann's disease often need physical therapy to manage pain and mobility, however their range of motion is generally not limited very much. Recovery from kyphosis correction surgery can be very long; typically patients are not allowed to lift anything above 5 of 10 pounds for 6 months to a year. Many are out of work for at least 6 months. However, once the fusion is solidified, most patients can return to their usual lifestyle with one to two years.

Complications The risk of undergoing spinal fusion surgery for kyphosis, like in scoliosis is estimated to be 5 % . Possible complications may be inflammation of the soft tissue or deep inflammatory processes, breathing impairments, bleeding and nerve injuries. However, according to the latest evidence the rate of complications is beyond that rate. As early as five years after surgery another 5% require reoperation and today it is not yet clear what to expect from spine surgery in the long-term.[11][12] Taking into account that signs and symptoms of spinal deformity cannot be changed by surgical intervention, surgery remains to be a cosmetic indication.[11][13] Unfortunately the cosmetic effects of surgery are not necessarily stable.[11] In case one decides to undergo surgery a specialized centre should be preferred.

Prominent Sufferers

  • Miley Cyrus, entertainer [14]
  • Milan Lucic, NHL hockey player for the Boston Bruins[15]
  • George Sampson, winner of the second series of Britain's Got Talent[16]

    References

    1. ^ synd/3305 at Who Named It?
    2. ^ H. W. Scheuermann. Kyphosis dorsalis juvenilis. Ugeskrift for Læger, Copenhagen, 1920, 82: 385-393.
    3. ^ "Medcyclopaedia - Scheuermann's disease".
    4. ^ Summers BN, Singh JP, Manns RA (2008). "The radiological reporting of lumbar Scheuermann's disease: an unnecessary source of confusion amongst clinicians and patients". Br J Radiol. 81 (965): 383–5. doi:10.1259/bjr/69495299. PMID 18440942. {{cite journal}}: Unknown parameter |month= ignored (help)CS1 maint: multiple names: authors list (link)
    5. ^ Blumenthal SL, Roach J, Herring JA (1987). "Lumbar Scheuermann's. A clinical series and classification". Spine. 12 (9): 929–32. doi:10.1097/00007632-198711000-00015. PMID 3441839. {{cite journal}}: Unknown parameter |month= ignored (help)CS1 maint: multiple names: authors list (link)
    6. ^ Fotiadis E, Kenanidis E, Samoladas E, Christodoulou A, Akritopoulos P, Akritopoulou K (2008). "Scheuermann's disease: focus on weight and height role". Eur Spine J. 17 (5): 673–8. doi:10.1007/s00586-008-0641-x. PMC 2367416. PMID 18301929. {{cite journal}}: Unknown parameter |month= ignored (help)CS1 maint: multiple names: authors list (link)
    7. ^ McKenzie L, Sillence D (1992). "Familial Scheuermann disease: a genetic and linkage study". J. Med. Genet. 29 (1): 41–5. doi:10.1136/jmg.29.1.41. PMC 1015820. PMID 1552543. {{cite journal}}: Unknown parameter |month= ignored (help)
    8. ^ Lehnert-Schroth, Christa (2007). Three-Dimensional Treatment for Scoliosis: A Physiotherapeutic Method for Deformities of the Spine. (Palo Alto, CA: The Martindale Press): 185-187, 211-17, and passim.
    9. ^ Weiss HR, Dieckmann J, Gerner HJ (2002). "Effect of intensive rehabilitation on pain in patients with Scheuermann's disease". Stud Health Technol Inform. 88: 254–7. PMID 15456045. {{cite journal}}: Unknown parameter |unused_data= ignored (help)CS1 maint: multiple names: authors list (link)
    10. ^ Weiss HR, Dieckmann J, Gerner HJ (2002). "Outcome of in-patient rehabilitation in patients with M. Scheuermann evaluated by surface topography". Stud Health Technol Inform. 88: 246–9. PMID 15456043. {{cite journal}}: Unknown parameter |unused_data= ignored (help)CS1 maint: multiple names: authors list (link)
    11. ^ a b c Hawes M. 2006. Impact of spine surgery on signs and symptoms of spinal deformity. Pediatr Rehabil. Oct-Dec;9(4):318-39.
    12. ^ Weiss HR, Goodall D: Rate of complications in scoliosis surgery - a systematic review of the Pub Med literature. Scoliosis. 2008 Aug 5;3:9.
    13. ^ Hawes MC, O'Brien JP. 2008. A century of spine surgery: What can patients expect? Disabil Rehabil. 30(10):808-17.
    14. ^ "Miley Cyrus' posture". 2009-10-22. Retrieved 2010-30-11. {{cite news}}: Check date values in: |accessdate= (help)
    15. ^ Shinzawa, Fluto (2007-10-18). "Bruins rookie Lucic punches up résumé - The Boston Globe". Boston.com. Retrieved 2010-08-31.
    16. ^ "One Year On George Sampson". The Times. London. 2009-05-17. Retrieved 2010-05-23.
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