Abstract:
:Electromyographic studies have determined that muscle imbalance and asymmetry of stretch receptors in the paraspinal muscle of patients with idiopathic scoliosis may have a large role to play in the development and production of the deformity. This project consisted of a detailed histologic and histochemical analysis of the distribution of muscle spindles in paraspinal musculature of patients suffering from idiopathic scoliosis, using the reduced form of nicotinamide-adenine dinucleotide (NADH), adenosine triphosphatase (ATPase), and Tri-chrome stain techniques. Muscle biopsy samples were taken at operation for spinal instrumentation from each of 13 patients (mean age: 16.2 years; 3 males, 10 females) with all but one female exhibiting right thoracic curves. The samples were collected from two specific sites (superficial and deep) on both sides of the vertebral column at the level of the apex of the primary curve and two vertebral levels above and below the apex. From the results there appear to be few muscle spindles in the scoliotic muscle of this region. All of the patients from whom muscle samples were taken possessed at least one sample with a muscle spindle. However, each patient had very few samples which contained a minimum of one muscle spindle (mean: 20.3%; SD: 12.6). It is clear that further examination is necessary, particularly in the area of comparison with 'normal' standards when these standards become available.
journal_name
Spine (Phila Pa 1976)journal_title
Spineauthors
Ford DM,Bagnall KM,Clements CA,McFadden KDdoi
10.1097/00007632-198805000-00004subject
Has Abstractpub_date
1988-05-01 00:00:00pages
461-5issue
5eissn
0362-2436issn
1528-1159journal_volume
13pub_type
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