Document Detail

How reverse shoulder arthroplasty works.
MedLine Citation:
PMID:  21484471     Owner:  NLM     Status:  MEDLINE    
BACKGROUND: The reverse total shoulder arthroplasty was introduced to treat the rotator cuff-deficient shoulder. Since its introduction, an improved understanding of the biomechanics of rotator cuff deficiency and reverse shoulder arthroplasty has facilitated the development of modern reverse arthroplasty designs.
QUESTIONS/PURPOSES: We review (1) the basic biomechanical challenges associated with the rotator cuff-deficient shoulder; (2) the biomechanical rationale for newer reverse shoulder arthroplasty designs; (3) the current scientific evidence related to the function and performance of reverse shoulder arthroplasty; and (4) specific technical aspects of reverse shoulder arthroplasty.
METHODS: A PubMed search of the English language literature was conducted using the key words reverse shoulder arthroplasty, rotator cuff arthropathy, and biomechanics of reverse shoulder arthroplasty. Articles were excluded if the content fell outside of the biomechanics of these topics, leaving the 66 articles included in this review.
RESULTS: Various implant design factors as well as various surgical implantation techniques affect stability of reverse shoulder arthroplasty and patient function. To understand the implications of individual design factors, one must understand the function of the normal and the cuff-deficient shoulder and coalesce this understanding with the pathology presented by each patient to choose the proper surgical technique for reconstruction.
CONCLUSIONS: Several basic science and clinical studies improve our understanding of various design factors in reverse shoulder arthroplasty. However, much work remains to further elucidate the performance of newer designs and to evaluate patient outcomes using validated instruments such as the American Society for Elbow Surgery, simple shoulder test, and the Constant-Murley scores.
Matthew Walker; Jordan Brooks; Matthew Willis; Mark Frankle
Publication Detail:
Type:  Journal Article; Review    
Journal Detail:
Title:  Clinical orthopaedics and related research     Volume:  469     ISSN:  1528-1132     ISO Abbreviation:  Clin. Orthop. Relat. Res.     Publication Date:  2011 Sep 
Date Detail:
Created Date:  2011-08-02     Completed Date:  2011-09-30     Revised Date:  2013-06-30    
Medline Journal Info:
Nlm Unique ID:  0075674     Medline TA:  Clin Orthop Relat Res     Country:  United States    
Other Details:
Languages:  eng     Pagination:  2440-51     Citation Subset:  AIM; IM    
Florida Orthopaedic Institute, 13020 Telecom Parkway North, Tampa, FL 33637, USA.
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms
Arthroplasty, Replacement* / instrumentation
Disability Evaluation
Joint Prosthesis
Muscle Strength
Prosthesis Design
Range of Motion, Articular
Recovery of Function
Rotator Cuff / injuries,  physiopathology,  radiography,  surgery*
Shoulder Joint / physiopathology,  radiography,  surgery*
Tendon Injuries / diagnosis,  physiopathology,  radiography,  surgery*
Treatment Outcome

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

Previous Document:  Influence of esomeprazole on hypoglycemic activity of oral antidiabetic agents in rats and rabbits.
Next Document:  Amphotericin B is cytotoxic at locally delivered concentrations.