Cementless prosthesis for reconstructing shoulder with glenoid retroversion

2016 ◽  
Author(s):  
Sugunya Potiwiput ◽  
Thanaporn Praphant ◽  
Atcharaporn Mai-orn ◽  
Chi-na Benyajati ◽  
Chamaiporn Sukjamsri
Keyword(s):  
Cementless Prosthesis ◽  
Glenoid Retroversion

Multifocal Osteonecrosis Glucocorticoid Induced

2017 ◽  
Vol 68 (1) ◽  
pp. 200-202
Author(s):  
Alexandru Patrascu ◽  
Liliana Savin ◽  
Olivera Lupescu ◽  
Dan Mihailescu ◽  
Dana Nicoleta Mihai ◽  
...  
Keyword(s):  
Wilson Disease ◽  
Toxic Hepatitis ◽  
Left Shoulder ◽  
Hepatic Transplantation ◽  
Number Of Patients ◽  
Cementless Prosthesis ◽  
Chronic Toxic Hepatitis ◽  
Aseptic Osteonecrosis ◽  
Hemi Arthroplasty ◽  
Protective Treatment

The present study describes a 29 years old patient diagnosed with aseptic osteonecrosis with multiple localization occurred after a corticoid treatment for chronic toxic hepatitis. The clinical and para-clinical examinations determined the diagnosis of Wilson disease and avascular necrosis with multiple localizations. The evolution of the disease was favourable following the surgical treatment consisting of bilateral total hip arthroplasty with cementless prosthesis, hemi-arthroplasty of the left shoulder with cementless prosthesis, orthotopic hepatic transplantation with an entire liver from donor in cerebral death and immunosuppressive, anticoagulant, antiretroviral and gastro-protective treatment. There is an increase of the number of patients undergoing a glucocorticoids treatment for several months, years or lifelong periods. This type of treatment increases the risk of osteonecrosis depending on the dosage and the duration of the treatment.

scholarly journals Glenoid Retroversion Associates with Deltoid Muscle Asymmetry in Walch B-type Glenohumeral Osteoarthritis

2020 ◽  
Author(s):  
Dillon C. O’Neill ◽  
Garrett V. Christensen ◽  
Bradley Hillyard ◽  
Jun Kawakami ◽  
Robert Z. Tashjian ◽  
...  
Keyword(s):  
Deltoid Muscle ◽  
Glenohumeral Osteoarthritis ◽  
Glenoid Retroversion

Effect of Posterior Glenoid Bone Loss and Retroversion on Arthroscopic Posterior Glenohumeral Stabilization

2020 ◽  
Vol 48 (11) ◽  
pp. 2621-2627
Author(s):  
Jared A. Wolfe ◽  
Michael Elsenbeck ◽  
Kyle Nappo ◽  
Daniel Christensen ◽  
Robert Waltz ◽  
...  
Keyword(s):  
Bone Loss ◽  
Circle Method ◽  
Glenoid Bone Loss ◽  
Labral Repair ◽  
Glenohumeral Instability ◽  
Level Of Evidence ◽  
Bone Deficiency ◽  
Posterior Shoulder ◽  
Deficiency Group ◽  
Glenoid Retroversion

Background: Posterior glenohumeral instability is an increasingly recognized cause of shoulder instability, but little is known about the incidence or effect of posterior glenoid bone loss. Purpose: To determine the incidence, characteristics, and failure rate of posterior glenoid deficiency in shoulders undergoing isolated arthroscopic posterior shoulder stabilization. Study Design: Cohort study; Level of evidence, 3. Methods: All patients undergoing isolated posterior labral repair and glenoid-based capsulorrhaphy with suture anchors between 2008 and 2016 at a single institution were identified. Posterior bone deficiency was calculated per the best-fit circle method along the inferior two-thirds of the glenoid by 2 independent observers. Patients were divided into 2 groups: minimal (0%-13.5%) and moderate (>13.5%) posterior bone loss. The primary outcome was reoperation for any reason. The secondary outcomes were military separation and placement on permanent restricted duty attributed to the operative shoulder. Results: A total of 66 shoulders met the inclusion criteria, with 10 going on to reoperation after a median follow-up of 16 months (range, 14-144 months). Of the total shoulders, 86% (57/66) had ≤13.5% bone loss and 14% (9/66) had >13.5%. Patients with moderate posterior glenoid bone loss had significantly greater retroversion (−11.5° vs −4.3°; P = .01). Clinical failure requiring reoperation was seen in 10.5% of patients in the minimal bone deficiency group and 44.4% in the moderate group ( P = .024). There was no difference between groups in rate of military separation or restricted duty. Patients with moderate posterior glenoid bone deficiency were more likely to be experiencing instability instead of pain on initial presentation ( P < .001), were more likely to have a positive Jerk test result ( P = .05), and had increased glenoid retroversion ( P = .01). Conclusion: In shoulders with moderate glenoid bone deficiency (>13.5%) and increased glenoid retroversion, posterior capsulolabral repair alone may result in higher reoperation rates than in shoulders without bone deficiency.

Glenoid osteotomy in young patients with glenoid retroversion and posterior shoulder instability

2018 ◽  
Vol 34 (2) ◽  
pp. 202
Author(s):  
L. Lacheta ◽  
T. Singh ◽  
J.-M. Hovsepian ◽  
S. Braun ◽  
A. Imhoff ◽  
...  
Keyword(s):  
Shoulder Instability ◽  
Young Patients ◽  
Posterior Shoulder Instability ◽  
Posterior Shoulder ◽  
Glenoid Retroversion

scholarly journals Do glenoid retroversion and humeral subluxation affect outcomes following total shoulder arthroplasty?

2020 ◽  
Vol 4 (3) ◽  
pp. 649-656
Author(s):  
C. Benjamin Ma ◽  
Weiyuan Xiao ◽  
Madeleine Salesky ◽  
Edward Cheung ◽  
Alan L. Zhang ◽  
...  
Keyword(s):  
Shoulder Arthroplasty ◽  
Total Shoulder Arthroplasty ◽  
Glenoid Retroversion

Augmented wedge-shaped glenoid component for the correction of glenoid retroversion: a finite element analysis

2014 ◽  
Vol 23 (3) ◽  
pp. 347-354 ◽  
Author(s):  
Juan C. Hermida ◽  
Cesar Flores-Hernandez ◽  
Heinz R. Hoenecke ◽  
Darryl D. D'Lima
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Glenoid Component ◽  
Element Analysis ◽  
Glenoid Retroversion

Secondary deformities of the shoulder in infants with an obstetrical brachial plexus lesions considered for neurosurgical treatment

2004 ◽  
Vol 16 (5) ◽  
pp. 1-5 ◽  
Author(s):  
J. A. van der Sluijs ◽  
W. J. R. van Ouwerkerk ◽  
R. A. Manoliu ◽  
P.I. J. M. Wuisman
Keyword(s):  
Magnetic Resonance ◽  
Mr Imaging ◽  
Brachial Plexus ◽  
Humeral Head ◽  
Resonance Imaging ◽  
Glenoid Version ◽  
Imaging Protocol ◽  
Neurosurgical Treatment ◽  
A Prospective Study ◽  
Glenoid Retroversion

Object The authors performed a prospective study in which magnetic resonance (MR) imaging was conducted in 26 consecutive infants (mean age 5.6 months, range 2.7–14.5 months) in whom recovery from an obstetric lesion of the brachial plexus had been inadequate in the first 3 months of life. The purpose was to identify early secondary deformations of the shoulder in obstetrical brachial plexus lesions (OBPLs). Methods Features of the shoulders were analyzed according to a standardized MR imaging protocol in patients with OBPLs. Measurements were made of the appearance of the glenoid, glenoid version, and the position of the humeral head. The appearance of the glenoid on the affected side was normal in only 11 shoulders. In the remainder it was convex in eight and biconcave in seven cases. The degree of humeral head subluxation was significantly greater (p = 0.001) in affected shoulders than in normal shoulders (152 and 170°, respecively). The presence of abnormal glenoid retroversion and humeral head subluxation increased with age: there was a statistical difference (p = 0.001) between infants younger than 5 months of age and those who were older. Conclusions Magnetic resonance imaging demonstrates shoulder-related anatomical and nerve root lesion, allowing evaluation of neural, osseous, and cartilaginous structures in younger children.

Immediate Changes of Bone Density Caused by the Implantation of a Femoral Stem - A Dexa Study

2011 ◽  
Vol 21 (6) ◽  
pp. 706-712 ◽  
Author(s):  
Ulf G. Leichtle ◽  
Jeremi Leasure ◽  
Franz Martini ◽  
Carmen I. Leichtle
Keyword(s):  
Bone Density ◽  
Bone Loss ◽  
Femoral Stem ◽  
Periprosthetic Bone ◽  
Experimental Conditions ◽  
Press Fit ◽  
Custom Made ◽  
Femoral Stems ◽  
Cementless Prosthesis ◽  
Post Implantation

Considerable immediate periprosthetic bone density changes after implantation of femoral stems have been observed comparing DEXA measurements taken pre- and post-operatively. This is important in relation to the interpretation of DEXA studies. We analysed these density changes under standardised experimental conditions. Five human femora were implanted with a custom made femoral stem and ten femora with a standard cementless prosthesis. Densitometry was performed at various stages of implantation. Following rasping only slight density changes were noted (–2.7% to +0.7%). Comparing post-implantation and pre-operative measurements, all custom made stems with a proximal press-fit demonstrated clear increases in proximal periprosthetic bone density of +11% and +14%. In contrast, the standard prosthesis with a distal press-fit showed a loss of –5% and –2% in the proximal zones. Measurements following removal of the implants demonstrated hardly any density changes (0% to –4%) compared to the pre-operative measurements. We concluded that compacting of trabecular bone or bone loss due to rasping are not the main causes of density changes. Substantial measuring errors exist. For examination of periprosthetic bone density changes, pre-operative initial measurements should not be used as a baseline for comparison. Studies should commence with an immediate postoperative measurement.

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