Publications by authors named "Mark Altena"

Background Context: Congenital and juvenile scoliosis are both early-onset deformities that develop before the age of 10. Children are treated to prevent curve progression and problems in adulthood such as back pain and a decreased quality of life but literature on long-term outcomes remains scarce.

Purpose: To evaluate the health-related quality of life (HRQoL) and potential disability of children with congenital scoliosis (CS) or juvenile idiopathic scoliosis (JIS) after a minimum of 20 years follow-up.

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Background And Purpose: The Brace Questionnaire (BrQ) is a disease-specific health-related quality of life (HRQOL) instrument for measuring perceived health status of scoliosis patients undergoing brace treatment. The purpose of this study is to evaluate the validity and reliability of a translated and culturally adapted Dutch version of the BrQ.

Patients And Methods: The original Greek BrQ was translated into Dutch and a cross-cultural adaptation and validation processes were conducted.

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Background Context: Previous studies on the natural history of moderate to severe idiopathic scoliosis show contradictory results. Some studies reported an increased incidence of back pain and disability in severe curves, while other studies reported no difference in health-related quality of life (HRQoL) compared to age-matched adult controls. None of these studies addressed HRQoL using currently recommended and validated questionnaires.

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(1) In countries where scoliosis screening programs ended, the responsibility for detection shifted from healthcare professionals to parents. Since recognizing scoliosis is difficult for parents, more patients are presenting late. Increased awareness of scoliosis may favor earlier detection.

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Background Context: One of the controversies in untreated idiopathic scoliosis is the influence of curve size on respiratory function. Whereas scoliosis patients with curves over 90 to 100 degrees are agreed to be at risk for cardiorespiratory failure in later life, the impairment of curves below 90 degrees is generally considered mild. Although various studies showed that pulmonary function is affected in patients with scoliosis, quantification of the relation between curve size and pulmonary function is lacking.

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Study Design: Retrospective comparative cohort.

Objective: The aim of this study was to determine whether spinal growth is restricted by brace treatment in patients with juvenile idiopathic scoliosis (JIS).

Summary Of Background Data: Spinal fusion can negatively affect spinal growth if performed before the growth spurt.

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We have read with great interest the article by Minsk et al. in Scoliosis and Spinal Disorders. However, the authors reported a conclusion that is based on possible selection bias in surgical candidates.

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Introduction: The most common surgical treatment of traumatic spine fractures is through a posterior approach using pedicle screws and rods. Postoperative treatment protocols including the use of postoperative orthoses however differ between hospitals and surgeons. A three-point hyperextension orthosis is designed to support proper posture and unload the anterior column.

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Background: Reconstructive surgical measures for treatment of posttraumatic deformities of the lateral tibial plateau are seldom reported on in the literature. We report the long-term follow-up results of a consecutive series of reconstructive osteotomies performed to treat depression and valgus malunions of the proximal part of the tibia.

Methods: From 1977 through 1998, a combination of an intra-articular elevation and a lateral opening wedge varus osteotomy of the proximal part of the tibia was performed in twenty-three consecutive patients.

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Background: Reconstructive surgical measures for treatment of posttraumatic deformities of the lateral tibial plateau are seldom reported on in the literature. We report the long-term follow-up results of a consecutive series of reconstructive osteotomies performed to treat depression and valgus malunions of the proximal part of the tibia.

Methods: From 1977 through 1998, a combination of an intra-articular elevation and a lateral opening wedge varus osteotomy of the proximal part of the tibia was performed in twenty-three consecutive patients.

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We report on 2 patients with a large intraosseous ganglion of the talus who were treated by means of a 2-portal endoscopic approach of the hindfoot with the patient in the prone position. By means of this approach, it is possible to visualize, debride, and graft a large intraosseous talar lesion. In both patients, the lesions were treated successfully, with no recurrence at follow up.

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