- What is the DDD ( Degenerative Disc Disease)
- It is degeneration of the annular fibres of the intervertebral disc.
- Anatomy
- Disc have two distinct components : the annulus fibrous(annular fibres) and the nucleus pulposus
- Images : xherniated_disc_larger.jpg__720x600_q85_subject_location-360,P2C300_subsampling-2.jpg.pagespeed.ic.eLBEezDe-x.jpg (720×600) (miamineurosciencecenter.com)
- Causes
- Drying out of the disc with age.
- Chronic overloading of the disc leading to annular fibre microtearing and migration of the nucleus
- Injury
- Types
- Cervical DDD
- Thoracic DDD
- Lumbar DDD
- Stages and Symptoms of DDD
- Stages
- Dysfunction stage
- There are wakness, bulging and minor tears in the annulus which heal slowly(due to the hypovascular nature of the disc) over many years.
- Disc protrusions
- This stage is considered reversible
- Instability stage
- The posterior annular fibres and joint capsules become lax.
- Nerve entrapment may occur.
- Spondylolisthesis may occur.
- Stablization stage
- There is loss of disc material and decreased disc height.
- Stenosis or narrowing of the spinal canal may occur.
- Degeneration may spread to other vetebral levels.
- Dysfunction stage
- Symptoms
- Pain and other symptoms may occur at any stage.
- The person may remain asymptomatic if a threshold of tissue damage is not reached.
- This threshold varies from person to person.
- Stages
- Acute Disc herniation
- Acute herniation can occur at any stage, but is more common at the end of the dysfunction or beginning of the instability stage.
- It is common between 30 and 45 years age.
- posterolateral protrusion is most common.
- Symptoms
- Severe low back pain, radiating pain.
- Walking can be painful and difficult.
- Acute scoliosis
- Neurological sign
- Muscle weakness
- demaromal sensory chagnes
- Bladder or bowel dysfunction
- SOAP
- Subjective information
- Objective information
- Observation , Palpation
- ROM
- Degenerative Disc Disease
- AF/PR ROM : Cervical and lumbar spine extension is most restricted.
- AR ROM : weakness in affected muscles, depending on the stage of degeneration
- Acute herniation
- AF/PR ROM : flexion and extension are limited by pain and muscle spasm
- AF : flexion in the lumbar spine may have a deviation to one side.
- AF/PR ROM : flexion and extension are limited by pain and muscle spasm
- Degenerative Disc Disease
- Special test
- For Cervical
- Upper limb tension tests
- Neurological test : dermatome, myotome
- DTR
- Spurling’s test
- Valsalva’s test
- For lumbar
- Straight Leg Raise test
- Neurological test : dermatome, myotome
- DTR
- Slump test
- Valsalva’s test
- Kemp’s test
- Kernig’s test
- For Cervical
- Treatment Plan
- Degenerative Disc Disease
- Treatment goal for degenerative disc disease depend on the presenting symptoms and stage of degeneration.
- If client has a head-forward posture : treat same as hyperkyphosis
- IF Client has flat back, or posterior pelvic tilt, treat same as flatback
- Remedial exercise : Mckenzie exercise
- Acute disc herniation
- The treatment is a half-hour
- Ice pack to decrease spasm and pain
- Contraindication
- Saddle anesthesia and bladder weakness
- If no position can be found that relieves the pain, treatment is contraindicated
- Position that aggravate symptoms are avoided
- Degenerative Disc Disease
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