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Traverse City, MI, United States

Churchill R.S.,Aurora Medical Center Grafton | Chuinard C.,Great Lakes Orthopaedic Center | Wiater J.M.,Beaumont Health | Friedman R.,Medical University of South Carolina | And 8 more authors.
Journal of Bone and Joint Surgery - American Volume | Year: 2016

Background: Stemmed humeral components have been used since the 1950s; canal-sparing (also known as stemless) humeral components became commercially available in Europe in 2004. The Simpliciti total shoulder system (Wright Medical, formerly Tornier) is a press-fit, porous-coated, canal-sparing humeral implant that relies on metaphyseal fixation only. This prospective, single-arm, multicenter study was performed to evaluate the two-year clinical and radiographic results of the Simpliciti prosthesis in the U.S. Methods: One hundred and fifty-seven patients with glenohumeral arthritis were enrolled at fourteen U.S. sites between July 2011 and November 2012 in a U.S. Food and Drug Administration (FDA) Investigational Device Exemption (IDE)- approved protocol. Their range of motion, strength, pain level, Constant score, Simple Shoulder Test (SST) score, and American Shoulder and Elbow Surgeons (ASES) score were compared between the preoperative and two-year postoperative evaluations. Statistical analyses were performed with the Student t test with 95% confidence intervals. Radiographic evaluation was performed at two weeks and one and two years postoperatively. Results: One hundred and forty-nine of the 157 patients were followed for a minimum of two years. The mean age and sex-adjusted Constant, SST, and ASES scores improved from 56% preoperatively to 104% at two years (p < 0.0001), from 4 points preoperatively to 11 points at two years (p < 0.0001), and from 38 points preoperatively to 92 points at two years (p < 0.0001), respectively. The mean forward elevation improved from 103° ± 27° to 147° ± 24° (p < 0.0001) and the mean external rotation, from 31° ± 20° to 56° ± 15° (p < 0.0001). The mean strength in elevation, as recorded with a dynamometer, improved from 12.5 to 15.7 lb (5.7 to 7.1 kg) (p < 0.0001), and the mean pain level, as measured with a visual analog scale, decreased from 5.9 to 0.5 (p < 0.0001). There were three postoperative complications that resulted in revision surgery: infection, glenoid component loosening, and failure of a subscapularis repair. There was no evidence of migration, subsidence, osteolysis, or loosening of the humeral components or surviving glenoid components. Conclusions: The study demonstrated good results at a minimum of two years following use of the Simpliciti canalsparing humeral component. Clinical results including the range of motion and the Constant, SST, and ASES scores improved significantly, and radiographic analysis showed no signs of loosening, osteolysis, or subsidence of the humeral components or surviving glenoid components. © 2016 BY THE JOURNAL OF BONE AND JOINT SURGERY, INCORPORATED. Source


O'Brien D.F.,Thomas Jefferson University | O'Hagan T.,Great Lakes Orthopaedic Center | Stewart R.,University of Chicago | Atanda A.W.,DuPont Company | And 3 more authors.
Journal of Shoulder and Elbow Surgery | Year: 2015

Background: Injury to the ulnar collateral ligament (UCL) often results in valgus elbow instability requiring reconstruction. No standardized and validated outcome measure has compared outcomes between surgical techniques and institutions in the overhead throwing athlete. The aim of this study was to use the Kerlan-Jobe Orthopaedic Clinic shoulder and elbow score (KJOC score) to report functional outcomes in overhead throwing athletes undergoing UCL reconstruction. We predict that the KJOC score in our general throwing population will provide an accurate assessment of postoperative outcomes consistent with previously published reports. Methods: A retrospective review of 33 patients undergoing UCL reconstruction was carried out during a 5-year period between 2004 and 2009. Minimum follow-up was 2.2years with an average of 3.7years. All surgeries were performed by fellowship-trained surgeons using either the docking (n=12) or modified Jobe technique (n=21). Age, sport, position, and return to play status were obtained. The KJOC score was administered to assess final functional outcome. Results: A total of 33 athletes underwent UCL reconstruction-30 baseball players and 3 javelin throwers. Of these, 27 (82%) returned to their sport at their previous level in an average of 12.25months. The overall average KJOC score was 76. Athletes who returned to their previous level of play had a mean KJOC score of 77. Those who were unable to return to play had a mean score of69. Conclusion: Our study demonstrates consistent outcomes for UCL reconstruction using the KJOC shoulder and elbow score compared with previously reported data. © 2015 Journal of Shoulder and Elbow Surgery Board of Trustees. Source


Krishnan S.G.,Shoulder Service | Reineck J.R.,Great Lakes Orthopaedic Center | Bennion P.D.,Institute of Bone and Joint Disorders | Feher L.,Shoulder Service | Burkhead Jr. W.Z.,Shoulder Service
Clinical Orthopaedics and Related Research | Year: 2011

Background: Arthroplasty for shoulder fractures is a technically challenging and unpredictable procedure and its use is controversial. Questions/purposes: We therefore asked (1) to what degree function would be restored, (2) whether tuberosity healing would reliably occur, and (3) whether stem design would influence function in patients treated with hemiarthroplasty for proximal humerus fracture. Patients and Methods: We retrospectively reviewed all patients treated with a hemiarthroplasty for proximal humeral fracture between September 2001 and May 2006. The first 58 patients (September 2001 to March 2004) were treated with a conventional humeral prosthesis. The next 112 patients (April 2004 to May 2006) were treated with a fracture-specific humeral prosthesis. Clinical measures (American Shoulder and Elbow Surgeons scores, visual analog pain scores, and goniometric measurements of glenohumeral motion) and radiographic evaluation of tuberosity healing were performed at minimum 24-month followup (mean, 32 months; range, 24-96 months). Results: Mean active anterior elevation was 118°, mean active external rotation 37.6°, and mean American Shoulder and Elbow Surgeons score 66. Overall, 127 of 170 (75%) greater tuberosities healed. With respect to stem design, active anterior elevation, active external rotation, and American Shoulder and Elbow Surgeons score were better with fracture-specific stems (129.8°, 39°, and 72, respectively) than with conventional stems (95.4°, 33.0°, and 55, respectively). Fewer tuberosities healed with conventional stems (38 of 58, 66%) than with fracture-specific stems (89 of 112, 79%). Conclusions: The use of fracture-specific stems during proximal humeral hemiarthroplasty for fracture appears to improve functional use of the injured shoulder and tuberosity healing compared to conventional stems. Level of Evidence: Level IV, therapeutic study. See Guidelines for Authors for a complete description of levels of evidence. © 2011 The Association of Bone and Joint Surgeons®. Source

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