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At least 199 records · Page 11Linked to original sources
PubMed1993

Ultrasonographic detection of thickened joint capsules and tendons as marker of dialysis-related amyloidosis: a cross-sectional and longitudinal study.

Dialysis-related amyloidosis is characterized by a beta 2-microglobulin (beta 2M) infiltration of joint synovia, tendons and capsules. We report a cross-sectional ultrasonographic evaluation of supraspinatus tendon and femoral neck capsule thickness in 49 patients on long-term haemodialysis. Ultrasonographic evaluation was repeated 21 +/- 4 (SD) months later in 16 patients. Normal values for the supraspinatus tendon and femoral neck capsule were defined in a group of control subjects without history or signs of joint disease. Among the 49 patients, aged 21-86 (median 59) years, dialysed for 1-228 (median 97) months, 33 had at least one abnormal joint. The prevalence of patients with at least one and at least two abnormal joints, the number of abnormal joints per patient, and the thickness of the supraspinatus tendon and femoral neck capsule increased significantly with dialysis duration (P < 0.001 for all parameters considered). By multiple linear regression analysis, mean thickness of the supraspinatus tendon was positively related to both dialysis duration (P < 0.0001) and age (P = 0.036) independently. All (n = 11) patients with radiological and/or histological evidence of dialysis-related amyloidosis at the time of ultrasonography had thickened supraspinatus tendon and/or femoral neck capsule; which were also thickened in an additional 22 patients without radiological evidence of dialysis-related amyloidosis. Three died within 5-10 months of the ultrasonographic investigation: post-mortem examination of the periarticular tissue confirmed that the detected thickening was due in all three to beta 2M amyloid infiltration.(ABSTRACT TRUNCATED AT 250 WORDS)

Adult↗
PubMed1993

Ultrasonography of joint capsules and tendons in dialysis-related amyloidosis.

Beta-2-microglobulin (beta 2m) amyloid infiltrates joint synovia, tendons and capsules. We report a cross-sectional ultrasonographic (US) evaluation of supraspinatus tendons' (SST) and femoral neck capsules' (FNC) thickness in 49 patients on long-term hemodialysis. Normal values for SST and FNC were defined in control subjects. Among the 49 patients, aged 21 to 86 (median 59) years at the time of US, dialyzed for 1 to 228 (median 97) months, 33 had at least one abnormal joint. The prevalence of patients with at least one or at least two abnormal joints, the number of abnormal joints per patient and the thickness of SST and FNC increased significantly with dialysis duration (P < 0.001 for all parameters considered). All (N = 11) patients with radiological and/or histological evidence of dialysis-related amyloidosis (DRA) had thickened SST and/or FNC. Twenty-two other patients without similar evidence of DRA also had thickened FNC and/or SST. Three died; post-mortem examination demonstrated that US abnormalities were due to beta 2m amyloid infiltration. We suggest that SST and FNC thickness, measured by US, is a useful, non-invasive tool for the diagnosis of DRA.

Adolescent↗
PubMedDate not supplied

[The stabilizing function of the glenohumeral joint capsule. Current aspects of the biomechanics of instability].

The purpose of the study was to determine the influence of rotation torques on superior-inferior and anterior-posterior translation in various degrees of abduction in the glenohumeral joint. 16 cadaveric shoulders were tested using a specifically designed four-degrees-of-freedom mounting apparatus and a 6-degrees-of-freedom tracking system which allowed of dynamic and static measurements by means of ultrasound (Zebris) Internal/external rotation torques and translation forces in the inferior-superior and anterior-posterior plane were applied in 0 degrees, 45 degrees, 75 degrees and 85 degrees of abduction. Shoulders were tested intact, vented, after severing of the acromion and coracoid (7 shoulders) and after subsequent division of the anterior capsule at the glenoid margin including a T-shaped incision (8 shoulders). Venting of the capsule resulted in a significant increase in ap-translation only in abduction of less than 45 degrees. Rotation torques and an abduction of more than 45 degrees effected a centering of the humeral head against translation-forces in the anterior-posterior and superior-inferior direction. The weakening of the anterior capsule by a T-shaped incision, in which circular fibers were also severed, significantly increased the anterior translation in comparison to that obtained after an incision along the glenoid margin.(ABSTRACT TRUNCATED AT 250 WORDS)

Acromion↗
PubMed1997

Calcification of lumbar ligamentum flavum and facet joints capsule.

STUDY DESIGN: The incidence of calcification in ligamentum flavum and posterior capsule demonstrated by computed tomography was reviewed in a series of 147 patients in whom 419 lumbar levels were studied. OBJECTIVES: To find a relationship between mechanical lumbar pathology and the calcification of the ligamentum flavum and posterior capsule. SUMMARY OF BACKGROUND DATA: Calcification of the ligamentum flavum and posterior capsule has been found in diffuse idiopathic skeletal hyperostosis and in metabolic disorders. Although this fact is considered a manifestation of degenerative disease of the spine, it barely has been studied, and many questions remain unresolved. METHODS: Calcifications were classified according to location as follows: 1) ligamentum flavum: upper attachment, lateral or capsular extension, caudal attachment, interlaminar portion or 2) posterior capsule. RESULTS: The following statistical associations were found: 1) degenerative facet joint disease with posterior capsule and lateral or capsular extension calcifications, 2) lumbarized vertebra with lateral or capsular extension and upper attachment calcifications, and 3) isthmic spondylolisthesis with lateral or capsular extension calcification.

Adult↗
PubMed2003

Medial approach without opening the joint capsule for developmental dislocation of the hip.

Seventy-one developmentally dislocated hips in 47 children with an average age of 11 months (range 4-16 months) were treated by the medial approach without opening the capsule followed by 6 months of hip spica-cast immobilization. At the latest follow-up 63 hips were rated excellent and good, and 8 hips showed subluxation. No avascular necrosis had occurred. It is concluded that this approach is safe and effective for treating developmental dislocation of the hip. Moreover, opening the capsule is not only an unnecessary task in this age group but also should be avoided to prevent avascular necrosis.

Bone Diseases, Developmental↗
PubMed1995

[Pectineus myectomy, tenotomy of the iliopsoas and neurectomy of the joint capsule as symptomatic therapy for coxarthrosis of the dog].

Abduction and extension of the hip is reduced and painful in patients with coxarthrosis. Contracture of the pectineus and iliopsoas muscles restricts the abduction and extension of the hip, respectively. Pectineus myectomy and tenotomy of the iliopsoas muscle result in clinical improvements. This symptomatic therapy is relatively simple, with minimal invasion. Clinical results are satisfactory.

Animals↗
PubMedDate not supplied

Catheter with an anchoring tip for chronic joint capsule perfusion.

An orthopedic catheter for long-term access to the synovial joint is anchored by a hollow threaded tap that penetrates the capsule through a hole drilled in the surrounding bone. The proximal end of the catheter is connected to either an implantable drug infusion pump or an implantable access port for continuous or intermittent perfusion or sampling. Four catheters were evaluated in dogs. Three were attached to ports, the fourth to a pump. Water (one trial, 22 weeks) and hyaluronic acid (HA) (5 mg/ml; two trials of 8 weeks each) were administered through ports twice weekly in 1.5 ml boluses; 5 mg/ml HA was delivered by pump (1 trial of 33 weeks) at 0.31 ml/day.

Animals↗
PubMed1989

[Use of a periosteal flap in the surgical management of rupture of the acromioclavicular joint capsule and ligament. Preliminary report].

Authors use in the treatment of acromioclavicular joint dislocations to increase the safety of the ligament sutures a periosteal flap, gained from the clavicle. The use of the periosteal flap to increase the strength of the acromioclavicular ligament sutures is described. In case of fixing the joint with a tension band the suspension of the cerclage on a screw for an easier removal is suggested.

Acromioclavicular Joint↗
PubMed1989

Posterior acetabular fracture-dislocations: fragment size, joint capsule, and stability.

In acetabular fractures, the size of a significant posterior wall fragment remains undefined as it affects joint stability. The purpose of this study was to quantitatively evaluate fragment size and hip stability in cadaveric specimens after serial osteotomies. Also, the role of the posterior capsule, in the various osteotomies, was evaluated for changes in hip stability. We found that fragments involving 25% or less of the acetabulum are insignificant, i.e., do not affect joint stability, while fragments involving 50% or more are significant. The significance of transitional fragments (25-50% of the acetabulum) is determined by the posterior capsule.

Acetabulum↗
PubMedDate not supplied

[Clinical value of histomorphologic studies of joint capsules].

The clinical significance of the histomorphological evaluation of synovial tissue from 389 patients with joint diseases was studied. From these data we conclude: (1) the histomorphological diagnosis in joint diseases is rarely of decisive value (6.2%); (2) in 23.1% of cases the histomorphological diagnosis is judged to be of clinical assistance; (3) the histomorphological grading of the inflammatory reaction in the joint under study corresponds in approximately two out of three cases to the clinical judgement.

Arthritis, Rheumatoid↗