Providence nighttime brace is as effective as fulltime Boston brace for female patients with adolescent idiopathic scoliosis: A retrospective analysis of a randomized cohort.

• Progressive moderate scoliotic curves in patients with adolescent idiopathic scoliosis (AIS) are usually treated with a fulltime brace, e.g., the Boston brace (BB). The Providence nighttime brace (PNB), is an alternative which is designed to reach the same treatment effectiveness by nighttime wear only. Few studies compared treatment effectiveness between full and nighttime bracing with contradictory results.Immature female patients older than 10 years with progressive moderate AIS curves with an apex below T6 were randomized into PNB (n=62) or BB (n=49) treatment. Inclusion criteria were AIS, age ≥ 10 years, no previous treatment, main curve Cobb angle 20°-40° and skeletal immaturity. The increase of the main curve by > 5° of Cobb angle at the final follow-up was established as the primary outcome measure. Secondary outcome measures included (1) the Scoliosis Research Society assessment criteria of effectiveness for brace studies, (2) progression of secondary curves, (3) in-brace correction and (4) compliance to the treatment. The patients were followed until 1 year after reaching maturity.A total of 105 patients (n=62 and n=43 in PNB and BB group, respectively) completed the follow-up (95%). In the PNB group, 71% patients were treated successfully compared to 65% patients in the BB group (p=.67). No significant difference of the curve progression was found between the groups (3.1°±6.3° and 2.6°±8.3° in PNB and BB group, respectively; p=.73). No significant differences were found for the thoracic or thoracolumbar/lumbar subgroups. PNB showed a superior in-brace correction for all curve types. One of four secondary curves progressed > 5°. The compliance to the treatment was significantly higher in the PNB than BB group.Both brace regimes are equally effective in treating moderate AIS curves with apex of the main curve below T6 in immature female patients older than 10 years.

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MEDICIN OCH HÄLSOVETENSKAP  -- Klinisk medicin -- Kirurgi (hsv//swe)

MEDICAL AND HEALTH SCIENCES  -- Clinical Medicine -- Surgery (hsv//eng)

MEDICIN OCH HÄLSOVETENSKAP  -- Klinisk medicin (hsv//swe)

MEDICAL AND HEALTH SCIENCES  -- Clinical Medicine (hsv//eng)

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