Estimation of accuracy of patient-specific musculoskeletal modelling: case study on a post polio residual paralysis subject.

For patients with patterns ranging out of anthropometric standard values, patient-specific musculoskeletal modelling becomes crucial for clinical diagnosis and follow-up. However, patient-specific modelling using imaging techniques and motion capture systems is mainly subject to experimental errors. The aim of this study was to quantify these experimental errors when performing a patient-specific musculoskeletal model.

In vivo intersegmental motion of the cervical spine using an inverse kinematics procedure.

Background: The main functions of the cervical spine are the stabilization and the orientation of the head. Pathologies are complex and difficult to diagnose. The first sign of the dysfunction is an abnormal intervertebral motion.

[Apophysitis of the iliac crest. A little known cause of low back pain and pelvic pain in children].

The authors describe an iliac osteochondrosis in 98 teenagers aged of 12 to 17 years, responsible for anterior, medial or posterior pains of pelvis and the lumbar zone, squaring with the period of ossification of the iliac crest. The spontaneous pain was revived by pressing a precise zone of the iliac crest. These pains have the usual characteristics of the pains of ossification of apophysis.

[Tendon surgery in equinovarus deformity of the foot in children and adolescents with cerebral palsy].

Fifty-eight children or adolescents with cerebral palsy who presented an equino varus deformity of the foot were operated on between the age of 4 to 21 by tibialis posterior tenotomy (23 cases), tibialis posterior transposition (18 cases), tibialis posterior (10 cases) or anterior (6 cases) transfer on the cuboid, with triceps lengthening (37 cases). 56 adolescents were reviewed, 45 had achieved their growth. The foot was painless and weight bearing improved.

[A case of epiphyseal osteoid osteoma].

The authors describe a case of osteoid osteoma developing in the lower femoral epiphysis of a 9-year-old child. It was close to the growth plate and was recognised with the aid of digital angiography and tomo-densitometry. It was removed by a surgical approach across the growth plate.