Head-Neck Osteoplasty has Minor Effect on the Strength of an Ovine Cam-FAI Model: In Vitro and Finite Element Analyses.
t M Abstract BACKGROUND: Osteochondroplasty of the head-neck region is performed on patients with cam femoroacetabular impingement (FAI) without fully understanding its repercussion on the integrity of the femur. Cam-type FAI can be surgically and reproducibly induced in the ovine femur, which makes it suitable for studying corrective surgery in a consistent way. Finite element models built on quantitative CT (QCT) are computer tools that can be used to predict femoral strength and evaluate the mechanical effect of surgical correction. QUESTIONS/PURPOSES: We asked: (1) What is the effect of a resection of the...
Source: Clinical Orthopaedics and Related Research - August 17, 2016 Category: Orthopaedics Authors: Maquer G, Bürki A, Nuss K, Zysset PK, Tannast M Tags: Clin Orthop Relat Res Source Type: research

Erratum to: What Is the Natural History of Asymptomatic Pseudotumors in Metal-on-metal THAs at Mid-term Followup?
PMID: 27530393 [PubMed - as supplied by publisher] (Source: Clinical Orthopaedics and Related Research)
Source: Clinical Orthopaedics and Related Research - August 16, 2016 Category: Orthopaedics Authors: Konan S, Duncan CP, Masri BS, Garbuz DS Tags: Clin Orthop Relat Res Source Type: research

CORR Insights( ®): Otto Aufranc Award: A Multicenter, Randomized Study of Outpatient versus Inpatient Total Hip Arthroplasty.
CORR Insights(®): Otto Aufranc Award: A Multicenter, Randomized Study of Outpatient versus Inpatient Total Hip Arthroplasty. Clin Orthop Relat Res. 2016 Aug 16; Authors: Parvizi J PMID: 27530394 [PubMed - as supplied by publisher] (Source: Clinical Orthopaedics and Related Research)
Source: Clinical Orthopaedics and Related Research - August 16, 2016 Category: Orthopaedics Authors: Parvizi J Tags: Clin Orthop Relat Res Source Type: research

A Day at the Office: Is Private Practice Orthopaedic Surgery Dead?
PMID: 27530395 [PubMed - as supplied by publisher] (Source: Clinical Orthopaedics and Related Research)
Source: Clinical Orthopaedics and Related Research - August 16, 2016 Category: Orthopaedics Authors: Lundy DW Tags: Clin Orthop Relat Res Source Type: research

What Factors are Associated With Clinically Important Improvement After Shoulder Hemiarthroplasty for Cuff Tear Arthropathy?
Abstract BACKGROUND: In selected patients with a desire to maintain activity levels greater than those recommended after reverse total shoulder arthroplasty, hemiarthroplasty remains an option for treatment of cuff tear arthropathy (CTA). However, given the relatively small case series that have been reported to date, little is known regarding which patients will show functional improvement after this surgery. QUESTIONS/PURPOSES: We asked: What factors are associated with achieving the minimum clinically important difference in the simple shoulder test (SST) after hemiarthroplasty for cuff tear arthropathy? ...
Source: Clinical Orthopaedics and Related Research - August 16, 2016 Category: Orthopaedics Authors: Somerson JS, Sander P, Bohsali K, Tibbetts R, Rockwood CA, Wirth MA Tags: Clin Orthop Relat Res Source Type: research

Stretching After Heat But Not After Cold Decreases Contractures After Spinal Cord Injury in Rats.
Abstract BACKGROUND: Contractures are a prevalent and potentially severe complication in patients with neurologic disorders. Although heat, cold, and stretching are commonly used for treatment of contractures and/or spasticity (the cause of many contractures), the sequential effects of these modalities remain unclear. QUESTIONS/PURPOSES: Using an established rat model with spinal cord injury with knee flexion contracture, we sought to determine what combination of heat or cold before stretching is the most effective for treatment of contractures derived from spastic paralyses and investigated which treatment ...
Source: Clinical Orthopaedics and Related Research - August 16, 2016 Category: Orthopaedics Authors: Iwasawa H, Nomura M, Sakitani N, Watanabe K, Watanabe D, Moriyama H Tags: Clin Orthop Relat Res Source Type: research

On Patient Safety: Do You Say "I'm Sorry" to Patients?
On Patient Safety: Do You Say "I'm Sorry" to Patients? Clin Orthop Relat Res. 2016 Aug 12; Authors: Lee MJ PMID: 27519576 [PubMed - as supplied by publisher] (Source: Clinical Orthopaedics and Related Research)
Source: Clinical Orthopaedics and Related Research - August 12, 2016 Category: Orthopaedics Authors: Lee MJ Tags: Clin Orthop Relat Res Source Type: research

CORR Insights( ®): Transsacral Osseous Corridor Anatomy Is More Amenable To Screw Insertion In Males: A Biomorphometric Analysis of 280 Pelves.
CORR Insights(®): Transsacral Osseous Corridor Anatomy Is More Amenable To Screw Insertion In Males: A Biomorphometric Analysis of 280 Pelves. Clin Orthop Relat Res. 2016 Aug 12; Authors: Dougherty PJ PMID: 27519577 [PubMed - as supplied by publisher] (Source: Clinical Orthopaedics and Related Research)
Source: Clinical Orthopaedics and Related Research - August 12, 2016 Category: Orthopaedics Authors: Dougherty PJ Tags: Clin Orthop Relat Res Source Type: research

CORR Insights( ®): High Risk of Surgical Glove Perforation From Surgical Rotatory Instruments.
CORR Insights(®): High Risk of Surgical Glove Perforation From Surgical Rotatory Instruments. Clin Orthop Relat Res. 2016 Aug 10; Authors: Lindsey RW PMID: 27511200 [PubMed - as supplied by publisher] (Source: Clinical Orthopaedics and Related Research)
Source: Clinical Orthopaedics and Related Research - August 10, 2016 Category: Orthopaedics Authors: Lindsey RW Tags: Clin Orthop Relat Res Source Type: research

One-stage Revision With Catheter Infusion of Intraarticular Antibiotics Successfully Treats Infected THA.
CONCLUSIONS: Single-stage revision for chronically infected cemented THA and débridement of bone-ingrown cementless THA with late-onset acute infection followed with indwelling catheter antibiotic infusion can result in infection eradication even when resistant organisms are involved. Larger study groups would better assess this technique and prospective comparisons to more traditional one- and two-stage revision techniques for infected THA will likely require multi-institutional approaches. LEVEL OF EVIDENCE: Level IV, therapeutic study. PMID: 27511201 [PubMed - as supplied by publisher] (Source: Clinical...
Source: Clinical Orthopaedics and Related Research - August 10, 2016 Category: Orthopaedics Authors: Whiteside LA, Roy ME Tags: Clin Orthop Relat Res Source Type: research

Are Recently Trained Tumor Fellows Performing Less Tumor Surgery? An Analysis of 10 Years of the ABOS Part II Database.
Abstract BACKGROUND: The majority of orthopaedic trainees pursue additional subspecialty training at the conclusion of residency. Although national trends indicate that fellowship-trained surgeons are more frequently performing cases in their defined subspecialties, this may not be the case for recently trained tumor fellows. Prior work has established that low tumor case volume is a significant stressor for recently trained tumor fellows. Given the relative rarity of musculoskeletal tumors, it is important for prospective trainees to have clear expectations for the proportion of specialty-specific procedures...
Source: Clinical Orthopaedics and Related Research - August 10, 2016 Category: Orthopaedics Authors: Duchman KR, Miller BJ Tags: Clin Orthop Relat Res Source Type: research

Can Surgeons Adequately Capture Adverse Events Using the Spinal Adverse Events Severity System (SAVES) and OrthoSAVES?
e; PE Abstract BACKGROUND: Physicians have consistently shown poor adverse-event reporting practices in the literature and yet they have the clinical acumen to properly stratify and appraise these events. The Spine Adverse Events Severity System (SAVES) and Orthopaedic Surgical Adverse Events Severity System (OrthoSAVES) are standardized assessment tools designed to record adverse events in orthopaedic patients. These tools provide a list of prespecified adverse events for users to choose from-an aid that may improve adverse-event reporting by physicians. QUESTIONS/PURPOSES: The primary objective was to compa...
Source: Clinical Orthopaedics and Related Research - August 10, 2016 Category: Orthopaedics Authors: Chen BP, Garland K, Roffey DM, Poitras S, Dervin G, Lapner P, Phan P, Wai EK, Kingwell SP, Beaulé PE Tags: Clin Orthop Relat Res Source Type: research

Clinical Faceoff: Slightly Displaced, Isolated, Partial Articular Fracture of the Radial Head.
PMID: 27506967 [PubMed - as supplied by publisher] (Source: Clinical Orthopaedics and Related Research)
Source: Clinical Orthopaedics and Related Research - August 9, 2016 Category: Orthopaedics Authors: Ring DC, Chen NC, Athwal GS Tags: Clin Orthop Relat Res Source Type: research

CORR Insights( ®): What Factors are Predictive of Patient-reported Outcomes? A Prospective Study of 337 Shoulder Arthroplasties.
CORR Insights(®): What Factors are Predictive of Patient-reported Outcomes? A Prospective Study of 337 Shoulder Arthroplasties. Clin Orthop Relat Res. 2016 Aug 9; Authors: Edwards TB PMID: 27506968 [PubMed - as supplied by publisher] (Source: Clinical Orthopaedics and Related Research)
Source: Clinical Orthopaedics and Related Research - August 9, 2016 Category: Orthopaedics Authors: Edwards TB Tags: Clin Orthop Relat Res Source Type: research

Cochrane in CORR ( ®): Surgical Versus Non-surgical Interventions for Treating Patellar Dislocation (Review).
Cochrane in CORR (®): Surgical Versus Non-surgical Interventions for Treating Patellar Dislocation (Review). Clin Orthop Relat Res. 2016 Aug 9; Authors: Khan M, Miller BS PMID: 27506969 [PubMed - as supplied by publisher] (Source: Clinical Orthopaedics and Related Research)
Source: Clinical Orthopaedics and Related Research - August 9, 2016 Category: Orthopaedics Authors: Khan M, Miller BS Tags: Clin Orthop Relat Res Source Type: research

T1 ρ Hip Cartilage Mapping in Assessing Patients With Cam Morphology: How Can We Optimize the Regions of Interest?
T1ρ Hip Cartilage Mapping in Assessing Patients With Cam Morphology: How Can We Optimize the Regions of Interest? Clin Orthop Relat Res. 2016 Aug 9; Authors: Anwander H, Rakhra KS, Melkus G, Beaulé PE Abstract BACKGROUND: T1ρ MRI has been shown feasible to detect the biochemical status of hip cartilage, but various region-of-interest strategies have been used, compromising the reproducibility and comparability between different institutions and studies. QUESTIONS/PURPOSES: The purposes of this study were (1) to determine representative regions of interest (ROIs) for cartilage T1&rh...
Source: Clinical Orthopaedics and Related Research - August 9, 2016 Category: Orthopaedics Authors: Anwander H, Rakhra KS, Melkus G, Beaulé PE Tags: Clin Orthop Relat Res Source Type: research

Is Botulinum Toxin Type A a Valuable Adjunct During Femoral Lengthening? A Randomized Trial.
CONCLUSIONS: Local injection of 200 IU BtX-A in the quadriceps muscles does not appear to reduce distraction-induced pain nor enhance ROM in the hip or knee during femoral lengthening. Additional studies are needed to evaluate the effect of larger doses or different injection methods. Based on our findings, we do not recommend routine use of botulinum injections during limb lengthening and believe any further use of this drug should only be in the context of a controlled trial. LEVEL OF EVIDENCE: Level II, therapeutic study. PMID: 27506971 [PubMed - as supplied by publisher] (Source: Clinical Orthopaedics and Related Research)
Source: Clinical Orthopaedics and Related Research - August 9, 2016 Category: Orthopaedics Authors: Park H, Shin S, Shin HS, Kim HW, Kim DW, Lee DH Tags: Clin Orthop Relat Res Source Type: research

CORR Insights( ®): Two- to 4-year Followup of a Short Stem THA Construct: Excellent Fixation, Thigh Pain a Concern.
CORR Insights(®): Two- to 4-year Followup of a Short Stem THA Construct: Excellent Fixation, Thigh Pain a Concern. Clin Orthop Relat Res. 2016 Aug 9; Authors: Nich C PMID: 27506972 [PubMed - as supplied by publisher] (Source: Clinical Orthopaedics and Related Research)
Source: Clinical Orthopaedics and Related Research - August 9, 2016 Category: Orthopaedics Authors: Nich C Tags: Clin Orthop Relat Res Source Type: research

What is the Prevalence of Radiographic Hip Findings Associated With Femoroacetabular Impingement in Asymptomatic Asian Volunteers?
CONCLUSION: The prevalence of FAI-related morphologic features in asymptomatic Asian populations was comparable to the prevalence in Western populations. Considering the high prevalence of radiographic hip findings reminiscent of FAI in asymptomatic Asian populations, it will be important to determine whether FAI-related morphologic features are a cause of hip pain when considering surgery in Asian patients. PMID: 27506973 [PubMed - as supplied by publisher] (Source: Clinical Orthopaedics and Related Research)
Source: Clinical Orthopaedics and Related Research - August 9, 2016 Category: Orthopaedics Authors: Ahn T, Kim CH, Kim TH, Chang JS, Jeong MY, Aditya K, Yoon PW Tags: Clin Orthop Relat Res Source Type: research

Does Surgeon Experience Impact the Risk of Complications After Bernese Periacetabular Osteotomy?
CONCLUSIONS: With a case exposure greater than 40 PAOs and progressive surgical responsibility during contemporary structured training, two young surgeons were able to perform PAO with a low risk of complications. However, even with that surgical experience before independent practice, surgical time decreased over the first 40 PAOs they performed independently. Our data may help guide orthopaedic residency and hip preservation fellowship programs in establishing training requirements and assessing competency in PAO. LEVEL OF EVIDENCE: Level III, therapeutic study. PMID: 27495809 [PubMed - as supplied by publisher...
Source: Clinical Orthopaedics and Related Research - August 5, 2016 Category: Orthopaedics Authors: Novais EN, Carry PM, Kestel LA, Ketterman B, Brusalis CM, Sankar WN Tags: Clin Orthop Relat Res Source Type: research

Satisfying Results of Primary Hip Arthroplasty in Patients With Hip Dysplasia at a Mean Followup of 20 Years.
CONCLUSIONS: Cemented primary THA with the use of impaction bone grafting shows satisfying long-term results in patients with previous DDH. For future research it is important to evaluate this technique in a larger cohort with a long-term followup. Other techniques also should be evaluated at long-term followup to be able to compare different techniques in this important and specific patient group. LEVEL OF EVIDENCE: Level IV, therapeutic study. PMID: 27492686 [PubMed - as supplied by publisher] (Source: Clinical Orthopaedics and Related Research)
Source: Clinical Orthopaedics and Related Research - August 4, 2016 Category: Orthopaedics Authors: Colo E, Rijnen WH, Gardeniers JW, van Kampen A, Schreurs BW Tags: Clin Orthop Relat Res Source Type: research

Novel Augmentation Technique for Patellar Tendon Repair Improves Strength and Decreases Gap Formation: A Cadaveric Study.
CONCLUSIONS: This biomechanical study showed improved performance of a novel augmentation technique compared with the standard repair, in terms of reduced gap formation during cyclic loading and increased maximum load to failure. CLINICAL RELEVANCE: Decreased gap formation and higher load to failure may improve healing potential and minimize failure risk. This study shows a potential biomechanical advantage of the augmentation technique, providing support for future clinical investigations comparing this technique with other repair methods that are in common use such as transosseous suture repair. PMID: 27492687 ...
Source: Clinical Orthopaedics and Related Research - August 4, 2016 Category: Orthopaedics Authors: Black JC, Ricci WM, Gardner MJ, McAndrew CM, Agarwalla A, Wojahn RD, Abar O, Tang SY Tags: Clin Orthop Relat Res Source Type: research

When Can I Drive After Orthopaedic Surgery? A Systematic Review.
CONCLUSIONS: The available evidence provides a best-case scenario for when patients can return to driving. It is important for observer-reported outcome measures to have normalized before a patient can consider driving, but other factors such as strength, ROM, and use of opioid analgesics need to be considered. This review can provide a guideline for when physicians can begin to consider evaluating these other factors and discussing a return to driving with patients. Survey data suggest that patients are returning to driving before observer-reported outcome measures have normalized, indicating that physicians should tell p...
Source: Clinical Orthopaedics and Related Research - August 4, 2016 Category: Orthopaedics Authors: DiSilvestro KJ, Santoro AJ, Tjoumakaris FP, Levicoff EA, Freedman KB Tags: Clin Orthop Relat Res Source Type: research

What is the Intraarticular Concentration of Tobramycin Using Low-dose Tobramycin Bone Cement in TKA: An In Vivo Analysis?
Abstract BACKGROUND: Antibiotic-impregnated bone cement has increased in popularity as an effort to reduce the risk of infection in high-risk TKAs. However, limited data has been reported regarding antibiotic levels achieved when using tobramycin-impregnated bone cement after implanting total knee components. QUESTIONS/PURPOSES: We asked: (1) What is the tobramycin serum and knee intraarticular levels in patients undergoing primary TKA using tobramycin cement? (2) What is the intraarticular tobramycin level for patients receiving only intravenous tobramycin? METHODS: All patients undergoing primary TKA b...
Source: Clinical Orthopaedics and Related Research - August 3, 2016 Category: Orthopaedics Authors: Vrabec G, Stevenson W, Elguizaoui S, Kirsch M, Pinkowski J Tags: Clin Orthop Relat Res Source Type: research

Periprosthetic UHMWPE Wear Debris Induces Inflammation, Vascularization, and Innervation After Total Disc Replacement in the Lumbar Spine.
Abstract BACKGROUND: The pathophysiology and mechanisms driving the generation of unintended pain after total disc replacement (TDR) remain unexplored. Ultrahigh-molecular-weight polyethylene (UHMWPE) wear debris from TDRs is known to induce inflammation, which may result in pain. QUESTIONS/PURPOSES: The purpose of this study was to determine whether (1) periprosthetic UHMWPE wear debris induces immune responses that lead to the production of tumor necrosis factor-α (TNFα) and interleukin (IL)-1ß, the vascularization factors, vascular endothelial growth factor (VEGF) and platelet-d...
Source: Clinical Orthopaedics and Related Research - August 3, 2016 Category: Orthopaedics Authors: Veruva SY, Lanman TH, Isaza JE, Freeman TA, Kurtz SM, Steinbeck MJ Tags: Clin Orthop Relat Res Source Type: research

Classifications In Brief: The Paprosky Classification of Femoral Bone Loss.
PMID: 27484412 [PubMed - as supplied by publisher] (Source: Clinical Orthopaedics and Related Research)
Source: Clinical Orthopaedics and Related Research - August 2, 2016 Category: Orthopaedics Authors: Ibrahim DA, Fernando ND Tags: Clin Orthop Relat Res Source Type: research

CORR Insights( ®): Shoulder Activity Level is Associated with Type of Employment and Income in the Normative Population Without Shoulder Disorders.
CORR Insights(®): Shoulder Activity Level is Associated with Type of Employment and Income in the Normative Population Without Shoulder Disorders. Clin Orthop Relat Res. 2016 Aug 2; Authors: Johnson AE PMID: 27484413 [PubMed - as supplied by publisher] (Source: Clinical Orthopaedics and Related Research)
Source: Clinical Orthopaedics and Related Research - August 2, 2016 Category: Orthopaedics Authors: Johnson AE Tags: Clin Orthop Relat Res Source Type: research

Gendered Innovations in Orthopaedic Science: Family Planning: An Orthopaedic Issue.
PMID: 27481260 [PubMed - as supplied by publisher] (Source: Clinical Orthopaedics and Related Research)
Source: Clinical Orthopaedics and Related Research - August 1, 2016 Category: Orthopaedics Authors: Page AE Tags: Clin Orthop Relat Res Source Type: research

CORR Insights( ®): Hindfoot Arthrodesis with the Blade Plate: Increased Risk of Complications and Nonunion in a Complex Patient Population.
CORR Insights(®): Hindfoot Arthrodesis with the Blade Plate: Increased Risk of Complications and Nonunion in a Complex Patient Population. Clin Orthop Relat Res. 2016 Jul 28; Authors: Aiyer AA PMID: 27469589 [PubMed - as supplied by publisher] (Source: Clinical Orthopaedics and Related Research)
Source: Clinical Orthopaedics and Related Research - July 28, 2016 Category: Orthopaedics Authors: Aiyer AA Tags: Clin Orthop Relat Res Source Type: research

Corticosteroid Injections Give Small and Transient Pain Relief in Rotator Cuff Tendinosis: A Meta-analysis.
Abstract BACKGROUND: The ability of injection of corticosteroids into the subacromial space to relieve pain ascribed to rotator cuff tendinosis is debated. The number of patients who have an injection before one gets relief beyond what a placebo provides is uncertain. QUESTIONS/PURPOSES: We asked: (1) Do corticosteroid injections reduce pain in patients with rotator cuff tendinosis 3 months after injection, and if so, what is the number needed to treat (NNT)? (2) Are multiple injections better than one single injection with respect to pain reduction at 3 months? METHODS: We systematically searched seven ...
Source: Clinical Orthopaedics and Related Research - July 28, 2016 Category: Orthopaedics Authors: Mohamadi A, Chan JJ, Claessen FM, Ring D, Chen NC Tags: Clin Orthop Relat Res Source Type: research

Gendered Innovations in Orthopaedic Science: Equal But Different.
PMID: 27464966 [PubMed - as supplied by publisher] (Source: Clinical Orthopaedics and Related Research)
Source: Clinical Orthopaedics and Related Research - July 27, 2016 Category: Orthopaedics Authors: Page AE Tags: Clin Orthop Relat Res Source Type: research

Not the Last Word: Two Patients, Two Operating Rooms, One Surgeon-Does The Math Add Up?
PMID: 27464967 [PubMed - as supplied by publisher] (Source: Clinical Orthopaedics and Related Research)
Source: Clinical Orthopaedics and Related Research - July 27, 2016 Category: Orthopaedics Authors: Bernstein J Tags: Clin Orthop Relat Res Source Type: research

Editorial: How the Words We Use Affect the Care We Deliver.
PMID: 27457621 [PubMed - as supplied by publisher] (Source: Clinical Orthopaedics and Related Research)
Source: Clinical Orthopaedics and Related Research - July 25, 2016 Category: Orthopaedics Authors: Ring DC, Dobbs MB, Gioe TJ, Manner PA, Leopold SS Tags: Clin Orthop Relat Res Source Type: research

Value-based Healthcare: Part 1-Designing and Implementing Integrated Practice Units for the Management of Musculoskeletal Disease.
PMID: 27457622 [PubMed - as supplied by publisher] (Source: Clinical Orthopaedics and Related Research)
Source: Clinical Orthopaedics and Related Research - July 25, 2016 Category: Orthopaedics Authors: Keswani A, Koenig KM, Bozic KJ Tags: Clin Orthop Relat Res Source Type: research

What Factors are Predictive of Patient-reported Outcomes? A Prospective Study of 337 Shoulder Arthroplasties.
Abstract BACKGROUND: Although shoulder arthroplasties generally are effective in improving patients' comfort and function, the results are variable for reasons that are not well understood. QUESTIONS/PURPOSES: We posed two questions: (1) What factors are associated with better 2-year outcomes after shoulder arthroplasty? (2) What are the sensitivities, specificities, and positive and negative predictive values of a multivariate predictive model for better outcome? METHODS: Three hundred thirty-nine patients having a shoulder arthroplasty (hemiarthroplasty, arthroplasty for cuff tear arthropathy, ream and...
Source: Clinical Orthopaedics and Related Research - July 25, 2016 Category: Orthopaedics Authors: Matsen FA, Russ SM, Vu PT, Hsu JE, Lucas RM, Comstock BA Tags: Clin Orthop Relat Res Source Type: research

CORR Insights( ®): Are Bundled Payments a Viable Reimbursement Model for Revision Total Joint Arthroplasty?
CORR Insights(®): Are Bundled Payments a Viable Reimbursement Model for Revision Total Joint Arthroplasty? Clin Orthop Relat Res. 2016 Jul 25; Authors: Lundy DW PMID: 27457624 [PubMed - as supplied by publisher] (Source: Clinical Orthopaedics and Related Research)
Source: Clinical Orthopaedics and Related Research - July 25, 2016 Category: Orthopaedics Authors: Lundy DW Tags: Clin Orthop Relat Res Source Type: research

The Biotribology of PEEK-on-HXLPE Bearings Is Comparable to Traditional Bearings on a Multidirectional Pin-on-disk Tester.
Abstract BACKGROUND: All-polymer bearings involving polyetheretherketone (PEEK) have been proposed for orthopaedic applications because they may reduce stress shielding, reduce weight of the implants, reduce wear and risk of osteolysis, and prevent release of metal ions by replacing the metal articulating components. Little is known about the biotribology of all-polymer PEEK bearings, including the effects of cross-shear, which are relevant for implant longevity, especially in the hip, and increased temperature that may affect lubricant proteins and, hence, lubrication in the joint. QUESTIONS/PURPOSES: Using ...
Source: Clinical Orthopaedics and Related Research - July 25, 2016 Category: Orthopaedics Authors: Baykal D, Siskey RS, Underwood RJ, Briscoe A, Kurtz SM Tags: Clin Orthop Relat Res Source Type: research

Economic Decision Model Suggests Total Shoulder Arthroplasty is Superior to Hemiarthroplasty in Young Patients with End-stage Shoulder Arthritis.
CONCLUSIONS: Treatment of end-stage glenohumeral arthritis refractory to conservative treatment in patients 30 to 50 years old in the United States with TSA, instead of hemiarthroplasty, would result in greater cost savings, avoid a substantial number of revision procedures, and result in greater years of satisfactory or excellent patient outcomes and greater QALYs gained. On a population level, TSA is the cost-effective treatment for glenohumeral arthritis in patients 30 to 50 years old. LEVEL OF EVIDENCE: Level II, economic and decision analysis study. PMID: 27457626 [PubMed - as supplied by publisher] (Source:...
Source: Clinical Orthopaedics and Related Research - July 25, 2016 Category: Orthopaedics Authors: Bhat SB, Lazarus M, Getz C, Williams GR, Namdari S Tags: Clin Orthop Relat Res Source Type: research

Bench to Bedside: Platelet-rich Plasma-How Do We Adequately "Untranslate" Translational "Breakthroughs" in an After-market Setting?
Bench to Bedside: Platelet-rich Plasma-How Do We Adequately "Untranslate" Translational "Breakthroughs" in an After-market Setting? Clin Orthop Relat Res. 2016 Jul 22; Authors: Potter BK PMID: 27449111 [PubMed - as supplied by publisher] (Source: Clinical Orthopaedics and Related Research)
Source: Clinical Orthopaedics and Related Research - July 22, 2016 Category: Orthopaedics Authors: Potter BK Tags: Clin Orthop Relat Res Source Type: research

Is Hepatitis C Infection Associated With a Higher Risk of Complications After Total Shoulder Arthroplasty?
Abstract BACKGROUND: Despite recent advances in the treatment of hepatitis C, it is estimated that nearly 4 million Americans have a chronic form of the disease. Although research in lower-extremity arthroplasty suggests patients with hepatitis C are at risk for increased complications, including postoperative bleeding, acute postoperative infection, and general medical complications, no similar studies have investigated this question in patients undergoing total shoulder arthroplasty (TSA). QUESTIONS/PURPOSES: We asked whether there is an increased risk of postoperative complications after TSA among patients...
Source: Clinical Orthopaedics and Related Research - July 22, 2016 Category: Orthopaedics Authors: Cancienne JM, Dempsey IJ, Holzgrefe RE, Brockmeier SF, Werner BC Tags: Clin Orthop Relat Res Source Type: research

Letter to the Editor: Is There a Benefit to Modularity in 'Simpler' Femoral Revisions?
PMID: 27444030 [PubMed - as supplied by publisher] (Source: Clinical Orthopaedics and Related Research)
Source: Clinical Orthopaedics and Related Research - July 21, 2016 Category: Orthopaedics Authors: Fink B Tags: Clin Orthop Relat Res Source Type: research

CORR Insights( ®): How Reliable Is the Alpha-Defensin Immunoassay Test for Diagnosing Periprosthetic Joint Infection? A Prospective Study.
CORR Insights(®): How Reliable Is the Alpha-Defensin Immunoassay Test for Diagnosing Periprosthetic Joint Infection? A Prospective Study. Clin Orthop Relat Res. 2016 Jul 21; Authors: Bauer TW PMID: 27444031 [PubMed - as supplied by publisher] (Source: Clinical Orthopaedics and Related Research)
Source: Clinical Orthopaedics and Related Research - July 21, 2016 Category: Orthopaedics Authors: Bauer TW Tags: Clin Orthop Relat Res Source Type: research

CORR Insights( ®): No Difference in Early Analgesia Between Liposomal Bupivacaine Injection and Intrathecal Morphine After TKA.
CORR Insights(®): No Difference in Early Analgesia Between Liposomal Bupivacaine Injection and Intrathecal Morphine After TKA. Clin Orthop Relat Res. 2016 Jul 21; Authors: Richebé P, Brulotte V PMID: 27444032 [PubMed - as supplied by publisher] (Source: Clinical Orthopaedics and Related Research)
Source: Clinical Orthopaedics and Related Research - July 21, 2016 Category: Orthopaedics Authors: Richebé P, Brulotte V Tags: Clin Orthop Relat Res Source Type: research

CORR Insights( ®): The Role of Highly Selective Implant Retention in the Infected Hip Arthroplasty.
CORR Insights(®): The Role of Highly Selective Implant Retention in the Infected Hip Arthroplasty. Clin Orthop Relat Res. 2016 Jul 21; Authors: Liebs TR PMID: 27444033 [PubMed - as supplied by publisher] (Source: Clinical Orthopaedics and Related Research)
Source: Clinical Orthopaedics and Related Research - July 21, 2016 Category: Orthopaedics Authors: Liebs TR Tags: Clin Orthop Relat Res Source Type: research

What Is the Natural History of Asymptomatic Pseudotumors in Metal-on-metal THAs at Mid-term Followup?
CONCLUSIONS: At mid-term followup, approximately 35% of patients who develop an early pseudotumor undergo revision arthroplasty, whereas the remaining are asymptomatic. The incidence of new-onset ultrasound findings suggestive of pseudotumors at mid- to long-term followup is approximately 8% and these require continued surveillance. LEVEL OF EVIDENCE: Level II, prognostic study. PMID: 27444034 [PubMed - as supplied by publisher] (Source: Clinical Orthopaedics and Related Research)
Source: Clinical Orthopaedics and Related Research - July 21, 2016 Category: Orthopaedics Authors: Konan S, Duncan CP, Masri BS, Garbuz DS Tags: Clin Orthop Relat Res Source Type: research

Reply to the Letter to the Editor: Negative Pressure Wound Therapy in Grade IIIB Tibial Fractures: Fewer Infections and Fewer Flap Procedures?
PMID: 27439441 [PubMed - as supplied by publisher] (Source: Clinical Orthopaedics and Related Research)
Source: Clinical Orthopaedics and Related Research - July 20, 2016 Category: Orthopaedics Authors: Schlatterer DR, Hirschfeld AG, Webb LX Tags: Clin Orthop Relat Res Source Type: research

Letter to the Editor: Negative Pressure Wound Therapy in Grade IIIB Tibial Fractures: Fewer Infections and Fewer Flap Procedures?
PMID: 27439442 [PubMed - as supplied by publisher] (Source: Clinical Orthopaedics and Related Research)
Source: Clinical Orthopaedics and Related Research - July 20, 2016 Category: Orthopaedics Authors: Mehrotra S, Anand S Tags: Clin Orthop Relat Res Source Type: research

Erratum to: The Role of Highly Selective Implant Retention in the Infected Hip Arthroplasty.
PMID: 27435241 [PubMed - as supplied by publisher] (Source: Clinical Orthopaedics and Related Research)
Source: Clinical Orthopaedics and Related Research - July 19, 2016 Category: Orthopaedics Authors: El-Husseiny M, Haddad FS Tags: Clin Orthop Relat Res Source Type: research

Editorial: Protecting Patients from Intimate-partner Violence-What the Orthopaedic Surgeon Can Do.
PMID: 27432419 [PubMed - as supplied by publisher] (Source: Clinical Orthopaedics and Related Research)
Source: Clinical Orthopaedics and Related Research - July 18, 2016 Category: Orthopaedics Authors: Leopold SS Tags: Clin Orthop Relat Res Source Type: research

The Biologic Response to Polyetheretherketone (PEEK) Wear Particles in Total Joint Replacement: A Systematic Review.
Abstract BACKGROUND: Polyetheretherketone (PEEK) and its composites are polymers resistant to fatigue strain, radiologically transparent, and have mechanical properties suitable for a range of orthopaedic applications. In bulk form, PEEK composites are generally accepted as biocompatible. In particulate form, however, the biologic response relevant to joint replacement devices remains unclear. The biologic response to wear particles affects the longevity of total joint arthroplasties. Particles in the phagocytozable size range of 0.1 µm to 10 µm are considered the most biologically reactive, particular...
Source: Clinical Orthopaedics and Related Research - July 18, 2016 Category: Orthopaedics Authors: Stratton-Powell AA, Pasko KM, Brockett CL, Tipper JL Tags: Clin Orthop Relat Res Source Type: research