Scapular Notching in Reverse Shoulder Arthroplasty: Is It Important to Avoid It and How?
Summary of "Scapular Notching in Reverse Shoulder Arthroplasty: Is It Important to Avoid It and How?"
Scapular notching, erosion of the scapular neck related to impingement by the medial rim of the humeral cup during adduction, is a radiographic sign specific to reverse shoulder arthroplasty (RSA). Its clinical and radiological consequences remain unclear. QUESTIONS/
Therefore, we: (1) determined the incidence of notching in a large series, (2) described the natural history of notching, (3) determined whether notching is related to functional scores or (4) radiographic signs of failure, and (5) identified factors related to notch development. PATIENTS AND
We retrospectively reviewed 448 patients who underwent a Grammont-type RSA (461 shoulders) with a mean followup of 51 months (range, 24-206 months). RSA was implanted for cuff tear arthropathy or osteoarthritis with cuff deficiency. We assessed scapular notching using AP views standardized under fluoroscopy. Clinical assessment included Constant-Murley score and range of motion. Aside from notching, radiographic assessment included evaluation of humeral and glenoid radiolucent lines.
Notching occurred in 68% of cases. It appeared early, but its later evolution was variable. Notching was associated with followup, strength, passive and active elevation, humeral radiolucent lines, and glenoid lucent lines. It also correlated with a higher rate in patients with preoperative superior erosion.
Scapular notching is frequent, generally progresses, and is associated with deterioration of some clinical parameters and radiolucent lines. We believe the preoperative pattern of glenoid erosion is of particular importance due to its influence on the surgeon's glenoid preparation and base-plate positioning. It is crucial to avoid cranial position and superior tilt. LEVELS OF
Level IV, Therapeutic study. See Guidelines for Authors for a complete description of levels of evidence.
Clinique du parc, 155 ter Bd Stalingrad, 69006, Lyon, France, firstname.lastname@example.org.
This article was published in the following journal.
Name: Clinical orthopaedics and related research
- PubMed Source: http://www.ncbi.nlm.nih.gov/pubmed/21116754
- DOI: http://dx.doi.org/10.1007/s11999-010-1695-8
Notching of the scapular pillar is the main radiographic complication seen during follow-up of reverse shoulder arthroplasties. Several recommendations pertaining to the implantation technique and gle...
This study examined outcomes and complications in young patients undergoing revision reverse total shoulder arthroplasty (RTSA) for failed prior total shoulder arthroplasty or hemiarthroplasty and c...
Reverse shoulder arthroplasty (RSA) has revolutionized treatment of arthritis and rotator cuff insufficiency and is performed using implants with either a medial or a lateral center of rotation. We co...
The effect of workers' compensation claims on outcomes after reverse shoulder arthroplasty (RSA) has not been investigated. The purpose of this study was to evaluate outcomes after RSA in patients wit...
The number of shoulder arthroplasties performed in the United States has more than doubled in the last decade. Additionally, there has been a trend toward use of reverse total shoulder arthroplasty an...
The purpose of this study is to determine if stabilizing the scapula (shoulder blade) during a common shoulder stretch is more effective at improving shoulder range of motion than not stab...
The purpose of this study is to prospectively evaluate two FDA approved implant designs for the Tornier Reverse Shoulder arthroplasty. The small difference in design is the amount of offse...
The overall objective of this study is to compare the clinical benefit and safety of two different surgical techniques of primary reverse total shoulder arthroplasty for the treatment of s...
The objective of this clinical study is to evaluate the safety and efficacy of the Encore Reverse Shoulder Prosthesis (RSP). The clinical results of the RSP will be compared to clinical re...
The purpose of this study is to evaluate the survivorship and efficacy of the Encore Reverse Shoulder Prosthesis in a group of no more than 50 subjects for whom data collection has already...
Medical and Biotech [MESH] Definitions
Unilateral or bilateral pain of the shoulder. It is often caused by physical activities such as work or sports participation, but may also be pathologic in origin.
The application of drug preparations to the surfaces of the body, especially the skin (ADMINISTRATION, CUTANEOUS) or mucous membranes. This method of treatment is used to avoid systemic side effects when high doses are required at a localized area or as an alternative systemic administration route, to avoid hepatic processing for example.
A variation of the PCR technique in which cDNA is made from RNA via reverse transcription. The resultant cDNA is then amplified using standard PCR protocols.
DNA sequences that form the coding region for retroviral enzymes including reverse transcriptase, protease, and endonuclease/integrase. "pol" is short for polymerase, the enzyme class of reverse transcriptase.
A ribonuclease activity that is a component of the HIV REVERSE TRANSCRIPTASE. It removes the RNA strand of the RNA-DNA heteroduplex produced by reverse transcription. Once the RNA moiety is removed a double stranded DNA copy of the HIV RNA can be synthesized.