Femoral and tibial bone torsions associated with medial femoro-tibial osteoarthritis. Index of cumulative torsions.

Frontal plane varus deviation is one of the mechanisms hypothesized to be involved in the pathogenesis of medial compartment osteoarthritis of the knee. But only a few authors have suggested a role for tibial and femoral torsion. In the current study, CT scan was used to measure bone torsion.

Experimental study of the sacroiliac joint micromotion in pelvic disruption.

Objective: To measure the sacroiliac (SI) joint micromotion when different ligamentous lesions are created to simulate various degrees of pelvic anteroposterior compression injury.

Design: Cadaveric study.

Materials And Method: Six SI joints were studied using a special device that made it possible to vary up to 310 N the loads applied on the ischial tuberosity and to measure simultaneously the SI micromotion.

[Osteoarticular disease in adults in France. A survey of 2000 persons].

Purpose Of The Study: Seeking for a global epidemiology data on bone and joint disease in adults in France, we analyzed the problems related to bone and joint disease in a sample population to determine healthcare needs. We also examined patient referral and demand for surgical care for bone and joint disease and the degree of patient satisfaction.

Material And Methods: A telephone interview was conducted in a randomly sampled population of adults living in France to determine their demographic characteristics and bone and joint conditions and surgical care reported by the interviewees.

Prospective randomized comparison between a dynamic hip screw and a mini-invasive static nail in fractures of the trochanteric area: preliminary results.

Objectives: This study aimed at comparing the results obtained with a sliding screw plate and an experimental device including a small-diameter nail that can be placed with a mini-invasive approach and provides a stable fixation.

Design: Randomized prospective study.

Setting: University hospital.

[Failure of locked centro-medullary nailing in pseudarthrosis of the humeral diaphysis].

Purpose Of The Study: The aim of this work was to assess results after treatment by nailing of nonunion of the humeral shaft. In particular, we focused on consolidation and factors predictive of failure.

Material And Method: A prospective study was conducted in 13 consecutive patients presenting aseptic nonunion of the humeral diaphysis.

[Primary intraosseous rhabdomyosarcoma].

We report a case of primary intraosseous pleiomorphic rhabdomyosarcoma located in the pelvis of a 21-year-old woman followed for 4 years. The lytic tumor involved the acetabulum and the isthma with moderate extension to soft tissue. First line chemotherapy was unable to arrest tumor progression.

Efficacy of etodolac on gait in hip osteoarthritis as assessed by Bessou's locometer: a randomized, crossover, double-blind study versus placebo. Groupe de Recherche sur le Handicap de L'appareil Locomoteur.

Objectives: To assess the efficacy of a single, oral dose of etodolac (300 mg), a nonsteroidal antiinflammatory drug, on gait and pain in patients with unilateral hip osteoarthritis (hOA).

Design: Sixteen patients (8 F, 8 M; mean age: 61+/-11.2 years) with painful hOA were included in a randomized, crossover, double-blind study versus placebo.

[Skin and muscle flaps to cover and fill chronic open osteitis of the tibia. Results with 10 cases].

Chronic osteomyelitis is a severe long-term bone infection which retains its mechanical qualities. The authors report 10 cases of osteomyelitis of the tibia treated by muscular and fascio-cutaneous flaps and reviewed at one year follow-up. Four cases concerned the third upper part of the tibia, 3 the middle and 3 the lower third.

Evolution of chronic recurrent multifocal osteitis toward spondylarthropathy over the long term.

Objective: To retrospectively assess, with a sufficiently long followup (mean 11.6 years; median 9 years), the long-term outcome of chronic recurrent multifocal osteitis (CRMO), a multifocal, inflammatory bone disease.

Methods: Patients included were 8 children/adolescents and 7 adults with no family history of rheumatic disease who had been diagnosed as having CRMO between 1979 and 1995.

[Transgluteal approach to the hip by anterior hemimyotomy of the gluteus medius].

Authors describe a transgluteal approach of the hip which is not based on the somewhat unsure common insertion of gluteus medius and vastus lateralis. Anatomical basis and technical particularities of division of anterior part of gluteus medius, of gluteus minimus and capsule are given which allow preservation of gluteal nerve, stability of the joint, and solid reparation of abductor muscles.

[Kinematics of the healthy and arthritic hip joint during walking. A study of 136 subjects].

Purpose Of The Study: The study aimed to analyze the spatiotemporal parameters and 3-dimensional pelvic and hip kinematic components during gait in two groups: patients with a primitive osteoarthritis of the hip and control normal subjects.

Material: The study included 51 patients, ranged from 42 to 81 years, and 86 normal subjects.

Method: Gait analysis was performed using the optoelectronic system VICON with 5 cameras in free-speed conditions.

Long-term functional prognosis of posterior injuries in high-energy pelvic disruption.

Objective: This study sought to identify the long-term functional results of various posterior pelvic lesions and to determine whether such injuries benefit from exact reduction.

Design: Consecutive cohort of patients admitted for pelvic disruption between 1980 and 1990.

Setting: University hospital.

Leiomyosarcoma of the tibia. Report of a case.

A 48-year-old man with an unremarkable medical history was admitted for a painful swelling over the anteromedial aspect of his right leg. Radiographs disclosed heterogeneity of the proximal tibia, with increased uptake on the bone scan. Computed tomography findings consisted of heterogeneity of the proximal tibial metaphysis and diaphysis with subtle cortical osteolysis, periosteal appositions and soft tissue involvement.

[Long-term results of condylar reconstruction using patella as vascularized graft].

Purpose Of The Study: In 1966, R. Merle d'Aubigné published 4 cases of unicondylar destructions (due to trauma or tumor) reconstructed with the patella replacing the joint surface. Since this time the same technique has been used in 6 other cases.

[Malignant transformation of multiple chondroma. Apropos of a case].

Malignant transformation of multiple chondromas observed in Ollier's disease is a well known possibility. In the clinical case of a 52 year old woman reported here, the sarcomatous transformation of two endochondromatous foci occurred successively in less than one year. One was located in the calcaneus, the other within the proximal metaphysis of the ipsilateral fibula.

Anatomic basis of the transgluteal approach to the hip-joint by anterior hemimyotomy of the gluteus medius.

The authors present a study of the intrinsic anatomy of the gluteus medius m, and of its innervation through the caudal branch of the superior gluteal n. The existence of an intramuscular tendon in the thickness of the gluteus medius was constantly prooved in 40 muscles. The relations of the intrinsic fibrous structure of the muscle and its innervation were studied.

[Recent palmar dislocations of the proximal interphalangeal joint].

Purpose Of The Study: Recent anterior dislocations of the proximal interphalangeal (PIP) joint are uncommon injuries. Chronic and irreducible dislocations have been most often reported. This study aims to precise the anatomic and radiologic aspects of these lesions about three cases, and to compare these cases and their treatment with thirteen cases published in the literature between 1966 and 1994.

Preliminary experience with low-dose methotrexate in fibroblastic rheumatism.

Fibroblastic rheumatism (FR) is a rare disease characterized by joint manifestations without joint destruction, and associated with cutaneous nodules and sclerodactyly. The diagnosis is usually based on histologic examination of a skin nodule or synovium specimen. In the 11 previously reported cases, corticosteroid treatment, which has been widely used, was shown to have an unpredictable effect on the evolution of FR.

Quantitative assessment of cortical bone remodelling from routine radiographs of total hip arthroplasty.

In orthopaedic clinical studies, quantitative X-ray bone densitometric analysis could provide precise means of detecting alterations within the bone. With duel-energy X-ray absorptiometry and diphotonic absorptiometry precise and reproducible measures are possible, but they require a specific and costly examination. The use of routine and past available radiographs could facilitate long-term follow-up retrospective studies, but when femoral X-ray bone density is assessed by the naked eye on conventional radiographs, the percentage of errors may be very high (80%).

Micromotion, fit, and fill of custom made femoral stems designed with an automated process.

This study presents an automated process for the design of custom made femoral stems. Two software programs have been developed to obtain the inner bone contours from computed tomography scan images and to design the optimal stem that can be inserted into the femur. This process requires only 2 hours of computer use, therefore reducing the price of the stem.