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https://www.readbyqxmd.com/read/25601383/surface-replacement-arthroplasty-for-glenohumeral-arthropathy-in-patients-aged-younger-than-fifty-years-results-after-a-minimum-ten-year-follow-up
#1
Ofer Levy, Oren Tsvieli, Julia Merchant, Lora Young, Alberto Trimarchi, Rupen Dattani, Ruben Abraham, Stephen A Copeland, Ali Narvani, Ehud Atoun
BACKGROUND: The role of cementless surface replacement arthroplasty (CSRA) in young individuals is currently unclear. The aim of this study was to evaluate CSRA long-term results for glenohumeral arthritis in young patients. METHODS: Between 1990 and 2003, 54 CSRAs were performed on 49 patients (25 men, 24 women) aged younger than 50 years. Mean age was 38.9 years (range, 22-50 years). Three patients (4 shoulders) died over time and 8 were lost to follow-up, leaving 38 patients (42 shoulders) with a mean follow-up of 14...
July 2015: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/25220196/evaluation-of-periprosthetic-bone-mineral-density-and-postoperative-migration-of-humeral-head-resurfacing-implants-two-year-results-of-a-randomized-controlled-clinical-trial
#2
RANDOMIZED CONTROLLED TRIAL
Inger Mechlenburg, Thomas M Klebe, Kaj V Døssing, Anders Amstrup, Kjeld Søballe, Maiken Stilling
BACKGROUND: Implant migration, bone mineral density (BMD), length of glenohumeral offset (LGHO), and clinical results were compared for the Copeland (Biomet Inc, Warsaw, IN, USA) and the Global C.A.P. (DePuy Int, Warsaw, IN, USA) humeral head resurfacing implants (HHRIs). METHODS: The study randomly allocated 32 patients (13 women), mean age 63 years (range, 39-82 years), with shoulder osteoarthritis to a Copeland (n = 14) or Global C.A.P. (n = 18) HHRI. Patients were monitored for 2 years with radiostereometry, dual-energy X-ray absorptiometry, Constant Shoulder Score (CSS), and the Western Ontario Osteoarthritis of the Shoulder Index (WOOS)...
October 2014: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/24167401/thermal-damage-during-humeral-reaming-in-total-shoulder-resurfacing
#3
Philip A McCann, Partha P Sarangi, Richard P Baker, Ashley W Blom, Rouin Amirfeyz
INTRODUCTION: Total shoulder resurfacing (TSR) provides a reliable solution for the treatment of glenohumeral arthritis. It confers a number of advantages over traditional joint replacement with stemmed humeral components, in terms of bone preservation and improved joint kinematics. This study aimed to determine if humeral reaming instruments produce a thermal insult to subchondral bone during TSR. PATIENTS AND METHODS: This was tested in vivo on 13 patients (8 with rheumatoid arthritis and 5 with osteoarthritis) with a single reaming system and in vitro with three different humeral reaming systems on saw bone models...
July 2013: International Journal of Shoulder Surgery
https://www.readbyqxmd.com/read/17408327/wear-in-the-prosthetic-shoulder-association-with-design-parameters
#4
Andrew R Hopkins, Ulrich N Hansen, Andrew A Amis, Lucy Knight, Mark Taylor, Ofer Levy, Stephen A Copeland
Total replacement of the glenohumeral joint provides an effective means for treating a variety of pathologies of the shoulder. However, several studies indicate that the procedure has not yet been entirely optimized. Loosening of the glenoid component remains the most likely cause of implant failure, and generally this is believed to stem from either mechanical failure of the fixation in response to high tensile stresses, or through osteolysis of the surrounding bone stock in response to particulate wear debris...
April 2007: Journal of Biomechanical Engineering
https://www.readbyqxmd.com/read/17030126/subacromial-plica-as-a-cause-of-impingement-in-the-shoulder
#5
Lennard Funk, Ofer Levy, Tirtza Even, Stephen A Copeland
The subacromial bursa is the largest bursa in the body. In 1934, Codman described the presence of subacromial plicae, similar to the suprapatellar plicae found in the knee. It is recognized that plicae in the knee can cause anterior knee pain with impingement against the patella in young persons. We investigated the possibility that a similar situation exists with plicae of the subacromial bursa. The aims of this study were to document the prevalence of bursal plicae seen at bursoscopy during arthroscopic subacromial decompression of the shoulder and to assess whether there is any pattern in the occurrence of these plicae, as well as the relationship to impingement lesions seen at bursoscopy...
November 2006: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/15111895/cementless-surface-replacement-arthroplasty-copeland-csra-for-osteoarthritis-of-the-shoulder
#6
Ofer Levy, Stephen A Copeland
Clinical experience with the Copeland cementless surface replacement arthroplasty (CSRA) of the shoulder now spans 17 years. Between 1986 and 1997, 79 CSRAs (42 total shoulder replacements and 37 hemiarthroplasties) were performed for primary osteoarthritis of the shoulder. Total shoulder replacement was done in 12 men and 30 women with a mean age of 71.5 years (range, 50-87 years). Hemiarthroplasty was used in 9 men and 28 women; 5 patients had bilateral hemiarthroplasty. The mean age was 73.4 years (range, 53-88 years)...
May 2004: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/15069862/-arthroscopic-subacromial-decompression-personal-experience-and-results
#7
L Urbánek, V Karjagin
PURPOSE OF THE STUDY: The aim of the study was to evaluate the outcomes of a comparatively new surgical technique--the arthroscopic subacromial decompression, justify its use and give reasons for refraining from open acromioplasty after Neer. The evaluated clinical sample comprised a relatively large group of patients, the biggest one presented so far in the Czech literature. The authors point out the benefits of this procedure and on the basis of the outcomes recommend its further use...
2004: Acta Chirurgiae Orthopaedicae et Traumatologiae Cechoslovaca
https://www.readbyqxmd.com/read/14996876/copeland-surface-replacement-arthroplasty-of-the-shoulder-in-rheumatoid-arthritis
#8
Ofer Levy, Lennard Funk, Giuseppe Sforza, Stephen A Copeland
BACKGROUND: Shoulder arthroplasty with a stemmed prosthesis is a recognized treatment for rheumatoid arthritis of the shoulder. The humeral component of the Copeland cementless surface replacement arthroplasty consists of a cup for surface replacement with a short central peg for primary fixation to the bone. We hypothesized that surface replacement may offer some advantages over stemmed prostheses. METHODS: Between 1986 and 1998, seventy-five shoulders underwent surface replacement arthroplasty (thirty-three hemiarthroplasties and forty-two total shoulder arthroplasties) for the treatment of rheumatoid arthritis...
March 2004: Journal of Bone and Joint Surgery. American Volume
https://www.readbyqxmd.com/read/11284568/cementless-surface-replacement-arthroplasty-of-the-shoulder-5-to-10-year-results-with-the-copeland-mark-2-prosthesis
#9
O Levy, S A Copeland
Cementless surface replacement arthroplasty of the shoulder is designed to replace the damaged joint surfaces and restore normal anatomy with minimal resection of bone. We have used the Copeland shoulder arthroplasty for 14 years. Between 1986 and 2000, 285 surface replacement arthroplasties were implanted in our unit. The prosthesis has evolved during this time, but the principle of minimal bone resection has remained the same. Between 1990 and 1994, 103 Mark-2 prostheses were inserted into 94 patients (9 bilateral)...
March 2001: Journal of Bone and Joint Surgery. British Volume
https://www.readbyqxmd.com/read/7068719/the-stanmore-total-shoulder-replacement
#10
A W Lettin, S A Copeland, J T Scales
No abstract text is available yet for this article.
1982: Journal of Bone and Joint Surgery. British Volume
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