PMID- 30511283 OWN - NLM STAT- MEDLINE DCOM- 20200610 LR - 20200610 IS - 1432-5195 (Electronic) IS - 0341-2695 (Linking) VI - 43 IP - 2 DP - 2019 Feb TI - One and two-year clinical outcomes for a polyethylene glenoid with a fluted peg: one thousand two hundred seventy individual patients from eleven centers. PG - 367-378 LID - 10.1007/s00264-018-4213-3 [doi] AB - PURPOSE: Clinical shoulder science lacks a benchmark against which the early clinical value of new glenoid components can be compared; such a benchmark may be derived from a multicenter study of patients receiving an established, internationally used design of glenoid component. METHODS: We obtained data from 11 centers on 1270 patients having total shoulder arthroplasty using an all-polyethylene component with a fluted central peg. We analyzed individual patient outcomes at 1 and 2 years after surgery. We compared the improvement for each patient to the minimal clinically important difference (MCID) and calculated each patient's improvement as a percent of maximal possible improvement (MPI). RESULTS: The preoperative scores improved from SST 3 +/- 2, ASES 37 +/- 15, Constant score 36 +/- 16, and Penn score 30 +/- 19 to SST 10 +/- 2, ASES 90 +/- 12, Constant 76 +/- 13, and Penn 80 +/- 24 (p < 0.001 for each). A high percentage of patients improved by more than the MCID (SST 96%, ASES 98%, Constant 94%, Penn 93%) and obtained improvement of at least 30% of the MPI (SST 95%, ASES 98%, Constant 91%, Penn 87%). The clinical outcomes realized with this glenoid design were not worse for the 41% of shoulders with preoperative type B glenoids or for the 30% of shoulders with more than 15 degrees of glenoid retroversion. CONCLUSIONS: Individual patients from 11 international practices having total shoulder arthroplasty using a basic glenoid component design obtained highly significant clinical outcomes, providing a benchmark against which the early outcomes of new designs can be compared to determine whether they provide increased clinical value. FAU - Matsen, Frederick A 3rd AU - Matsen FA 3rd AUID- ORCID: 0000-0002-6465-4826 AD - Department of Orthopaedics and Sports Medicine, University of Washington Medical Center, 1959 NE Pacific Street, Box 356500, Seattle, WA, 98195-6500, USA. matsen@uw.edu. FAU - Iannotti, Joseph P AU - Iannotti JP AD - Department of Orthopaedic Surgery, Cleveland Clinic, Mail Code A41, G Building, 9500 Euclid Avenue, Cleveland, OH, 44195, USA. FAU - Churchill, R Sean AU - Churchill RS AD - Orthopaedic Surgery, Aurora Health Center, 3003 W Good Hope Road, Milwaukee, WI, 53209, USA. FAU - De Wilde, Lieven AU - De Wilde L AD - Shoulder & Elbow Surgery, Department of Orthopaedic Surgery and Traumatology, Ghent University Hospital, Corneel Heymanslaan 10, 9000, Ghent, Belgium. FAU - Edwards, T Bradley AU - Edwards TB AD - Fondren Orthopaedic Group, L.L.P., 7401 S Main St, Houston, TX, 77030, USA. FAU - Evans, Matthew C AU - Evans MC AD - Upper Limb Unit, Melbourne Orthopaedic Group, 33 The Avenue, Windsor, Melbourne, VIC, 3181, Australia. FAU - Fehringer, Edward V AU - Fehringer EV AD - Orthopaedic Shoulder and Elbow Surgery, Columbus Community Hospital Orthopaedics and Sports Medicine, 4508 38th Street, Suite 133, Columbus, NE, 68601, USA. FAU - Groh, Gordon I AU - Groh GI AD - Asheville Orthopaedic Associates, P.A, 111 Victoria Road, Asheville, NC, 28801, USA. FAU - Kelly, James D 2nd AU - Kelly JD 2nd AD - California Pacific Orthopaedics, 2351 Clay Street, Suite 510, San Francisco, CA, 94115, USA. FAU - Kilian, Christopher M AU - Kilian CM AD - Orthopaedic Associates of Wisconsin, N15 W28300 Golf Road, Pewaukee, WI, 53072, USA. FAU - Merolla, Giovanni AU - Merolla G AD - Shoulder and Elbow Unit, "D. Cervesi" Hospital, Via L. v. Beethoven 46, 47841, Cattolica, Italy. FAU - Norris, Tom R AU - Norris TR AD - California Pacific Orthopaedics, 2351 Clay Street, Suite 510, San Francisco, CA, 94115, USA. FAU - Porcellini, Giuseppe AU - Porcellini G AD - Orthopaedic and Trauma Unit, University of Modena and Reggio Emilia, Via Universita, 4, 41121, Modena, MO, Italy. FAU - Spencer, Edwin E Jr AU - Spencer EE Jr AD - Knoxville Orthopaedic Clinic, 260 Fort Sanders West Blvd, Knoxville, TN, 37922, USA. FAU - Vidil, Anne AU - Vidil A AD - Paris Shoulder Unit, Clinique Bizet, 21 rue Georges Bizet, 75116, Paris, France. FAU - Wirth, Michael A AU - Wirth MA AD - Department of Orthopaedics, The University of Texas Health Science Center at San Antonio, 7703 Floyd Curl Drive, MC 7774, San Antonio, TX, 78229-3900, USA. FAU - Russ, Stacy M AU - Russ SM AD - Department of Orthopaedics & Sports Medicine, University of Washington, 4245 Roosevelt Way NE, Box 354740, Seattle, WA, 98105, USA. FAU - Neradilek, Moni AU - Neradilek M AD - The Mountain-Whisper-Light Statistics, 1827 23rd Avenue East, Seattle, WA, 98112, USA. FAU - Somerson, Jeremy S AU - Somerson JS AD - The University of Texas Medical Branch, 301 University Blvd., Route 0165, Galveston, TX, 77555-0165, USA. LA - eng PT - Journal Article PT - Multicenter Study PT - Observational Study DEP - 20181203 PL - Germany TA - Int Orthop JT - International orthopaedics JID - 7705431 RN - 0 (Biocompatible Materials) RN - 9002-88-4 (Polyethylene) SB - IM MH - Adult MH - Aged MH - Aged, 80 and over MH - Arthroplasty, Replacement, Shoulder/*methods MH - Biocompatible Materials MH - Female MH - Follow-Up Studies MH - Humans MH - Joint Diseases/surgery MH - *Joint Prosthesis MH - Male MH - Middle Aged MH - Osteoarthritis/diagnostic imaging/surgery MH - Polyethylene MH - Prosthesis Design MH - Retrospective Studies MH - Scapula/*surgery MH - Shoulder Joint/diagnostic imaging/*surgery MH - Tomography, X-Ray Computed MH - Treatment Outcome MH - Young Adult OTO - NOTNLM OT - All-polyethylene OT - Clinical outcomes OT - Glenoid OT - Ingrowth OT - Minimal clinically important difference OT - Peg OT - Percentage of maximal possible improvement EDAT- 2018/12/05 06:00 MHDA- 2020/06/11 06:00 CRDT- 2018/12/05 06:00 PHST- 2018/10/18 00:00 [received] PHST- 2018/10/23 00:00 [accepted] PHST- 2018/12/05 06:00 [pubmed] PHST- 2020/06/11 06:00 [medline] PHST- 2018/12/05 06:00 [entrez] AID - 10.1007/s00264-018-4213-3 [pii] AID - 10.1007/s00264-018-4213-3 [doi] PST - ppublish SO - Int Orthop. 2019 Feb;43(2):367-378. doi: 10.1007/s00264-018-4213-3. Epub 2018 Dec 3.