Daniel C Austin1, Michael T Torchia2, Jonathan D Lurie3, David S Jevsevar2, John-Erik Bell2. 1. Department of Orthopaedics, Dartmouth-Hitchcock Medical Center, Lebanon, NH, USA. Electronic address: Daniel.C.Austin@hitchcock.org. 2. Department of Orthopaedics, Dartmouth-Hitchcock Medical Center, Lebanon, NH, USA. 3. Department of Orthopaedics, Dartmouth-Hitchcock Medical Center, Lebanon, NH, USA; Department of Medicine, Dartmouth-Hitchcock Medical Center, Lebanon, NH, USA; The Dartmouth Institute for Health Policy and Clinical Practice, Dartmouth College, Lebanon, NH, USA.
Abstract
BACKGROUND: There is a lack of consensus regarding indications for surgical management of rotator cuff disease, which can lead to increased regional variation. The objectives of this study were to describe the geographic variation in rates of rotator cuff repair (RCR) in the United States over time and to identify regional characteristics associated with utilization. METHODS: The United States was divided into 306 hospital referral regions. The adjusted per capita RCR rate was calculated using procedural counts derived from the Medicare Part B Carrier File from 2004-2014. Population-weighted multivariable regression was used to identify regional characteristics independently associated with utilization in 2014. RESULTS: In 2014, an 8-fold difference in rates of RCR was found between regions. Between 2010 and 2014, the overall rate of RCR grew only 3.6% and regional variation decreased. Higher regional utilization of several other orthopedic procedures (P < .02), as well as the regional supply of orthopedic surgeons (P = .002), was independently associated with significantly increased utilization. The South, Southeast, and Southwest were independently associated with significantly higher utilization (P < .001) compared with the Northeast. A higher prevalence of resident physicians, a marker of the academic presence within a region, was independently associated with decreased utilization (P < .001). CONCLUSION: Utilization of RCR has increased substantially over the past decade, but the rate of growth appears to be slowing. RCR remains a procedure with significant regional variation, and increased utilization across regions is associated with higher orthopedic surgeon supply and increased rates of other orthopedic procedures.
BACKGROUND: There is a lack of consensus regarding indications for surgical management of rotator cuff disease, which can lead to increased regional variation. The objectives of this study were to describe the geographic variation in rates of rotator cuff repair (RCR) in the United States over time and to identify regional characteristics associated with utilization. METHODS: The United States was divided into 306 hospital referral regions. The adjusted per capita RCR rate was calculated using procedural counts derived from the Medicare Part B Carrier File from 2004-2014. Population-weighted multivariable regression was used to identify regional characteristics independently associated with utilization in 2014. RESULTS: In 2014, an 8-fold difference in rates of RCR was found between regions. Between 2010 and 2014, the overall rate of RCR grew only 3.6% and regional variation decreased. Higher regional utilization of several other orthopedic procedures (P < .02), as well as the regional supply of orthopedic surgeons (P = .002), was independently associated with significantly increased utilization. The South, Southeast, and Southwest were independently associated with significantly higher utilization (P < .001) compared with the Northeast. A higher prevalence of resident physicians, a marker of the academic presence within a region, was independently associated with decreased utilization (P < .001). CONCLUSION: Utilization of RCR has increased substantially over the past decade, but the rate of growth appears to be slowing. RCR remains a procedure with significant regional variation, and increased utilization across regions is associated with higher orthopedic surgeon supply and increased rates of other orthopedic procedures.
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