Search Our Scientific Publications & Authors

J Orthop 2019 Jan-Feb;16(1):55-60. Epub 2018 Dec 21.

Department of Medical Sciences, Frank H. Netter MD School of Medicine at Quinnipiac University, Hamden, CT, 06518, USA.

X-linked hypophosphatemia (XLH) is associated with a pervasive, severe degenerative osteoarthritis. We conducted a retrospective chart review/patient survey using the Knee or Hip Osteoarthritis Outcome Score Physical Function Short Form. Fourteen total knee arthroplasties and 7 total hip arthroplasties among 11 patients were included. Read More

Med J Aust 2019 Jan 18. Epub 2019 Jan 18.

South Western Sydney Clinical School, UNSW, Sydney, NSW.

The minimum requirements for total knee arthroplasty (TKA) are significant, prolonged symptoms with supporting clinical and radiological signs. Despite interest in screening tools, there is limited evidence for a specific symptom threshold that justifies surgery. Non-operative treatments including medications, exercise and weight loss are unlikely to reverse radiographic changes, but they may improve symptoms and delay the need for surgery. Read More

J Bone Joint Surg Am 2019 Jan;101(2):145-151

Department of Orthopaedic Surgery, Rush University Medical Center, Chicago, Illinois.

Background: Digital patient engagement platforms are designed to improve the efficacy of the perioperative surgical home, but the currently available solutions have shown low patient and provider adoption. The purpose of this study was to evaluate the effectiveness of a text-messaging (Short Message Service [SMS]) bot with respect to patient engagement following joint replacement procedures in a randomized clinical trial.

Methods: One hundred and fifty-nine patients (83 patients in the control group and 76 patients in the intervention group) were enrolled in a randomized controlled trial comparing the effectiveness of an SMS bot (intervention group) with the traditional perioperative education process (control group) in patients undergoing primary total knee or hip arthroplasty. Read More

J Knee Surg 2019 Jan 16. Epub 2019 Jan 16.

Clinica Ortopedica e Traumatologica II, Istituto Ortopedico Rizzoli, Bologna, Italy.

Long-term results of unicompartmental knee arthroplasty (UKA) have shown a slightly higher revision rate than total knee arthroplasty (TKA), and implant fixation geometry seems to affect prosthetic survivorship. Whether metal-backed tibial component leads to superior performance over the all-polyethylene design is unclear, and a lack of evidence exists in literature. Our purpose was to demonstrate which implant design of UKA (all-polyethylene or metal-backed tibial component) is clinically superior regarding revision rates and clinical functioning, and investigate the role of potential factors that could affect the revision rate. Read More

Am J Orthop (Belle Mead NJ) 2018 Dec;47(12)

Rothman Institute, Sidney Kimmel Medical College at Thomas Jefferson University, 825 Old Lancaster Ave, PA 19010, USA. Email:

Publications on the prevalence of unicompartmental knee arthroplasty in the United States using a single database may have underestimated the "true" number of cases performed, given that several unicondylar knee arthroplasty (UKA) patients are <65 years and have private insurance. The prevalence of UKA in elderly (≥65 years) and younger (<65 years) populations was evaluated using the 2002 to 2011 5% sample of the Medicare data (Part B) and the 2004 to June 2012 MarketScan Commercial and Medicare Supplemental databases, respectively. The prevalence of UKA was stratified by age, gender, census region, Charlson comorbidity index, Medicare buy-in status, and diagnosis. Read More

Am J Orthop (Belle Mead NJ) 2018 Dec;47(12)

Department of Biomechanics, 6160 University Drive South, USA. Email:

The subvastus (SV) approach is a well-known muscle- and tendon-sparing approach for total knee arthroplasty (TKA), which has been shown in some studies to provide better outcomes in the visual analog pain score (VAS), knee range of motion (ROM), straight-leg raise, as well as faster rehabilitation, compared with the standard medial parapatellar (MP) approach. We previously described a new knee replacement technique known as the modified intervastus (MIV) approach. The MIV approach is a muscle- and tendon-sparing approach that is extensile and simple to perform. Read More

Bone Joint J 2019 Jan;101-B(1_Supple_A):53-58

Joint Replacement Institute, St. Vincent Medical Center, Los Angeles, California, USA.

Aims: Loosening of the tibial component after total knee arthroplasty (TKA) is a common indication for revision. Increasing the strength of the initial tibial implant/cement interface is desirable. There is little information about the surgical techniques that lead to the highest strength. Read More

Bone Joint J 2019 Jan;101-B(1_Supple_A):3-9

Department of Orthopaedic Surgery, Carolinas Medical Center, Charlotte, North Carolina, USA and OrthoCarolina Hip and Knee Center, Charlotte, North Carolina, USA.

Aims: Prosthetic joint infection (PJI) remains a serious complication that is associated with high morbidity and costs. The aim of this study was to prepare a systematic review to examine patient-related and perioperative risk factors that can be modified in an attempt to reduce the rate of PJI.

Materials And Methods: A search of PubMed and MEDLINE was conducted for articles published between January 1990 and February 2018 with a combination of search terms to identify studies that dealt with modifiable risk factors for reducing the rate of PJI. Read More

Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi 2019 Jan;33(1):13-17

Department of Orthopaedics, the First Affiliated Hospital of Fujian Medical University, Fuzhou Fujian, 350005, P.R.China.

Objective: To analyse the effectiveness of unicompartmental knee arthroplasty (UKA) for the patients with spontaneous osteonecrosis of the knee (SONK).

Methods: Between January 2012 and December 2016, 31 patients with SONK was admitted and treated with medial UKA. All patients were examined by both plain radiography and magnetic resonance images. Read More

Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi 2019 Jan;33(1):8-12

Department of Adult Joint Reconstructive Surgery【？】, Yangpu Hospital, Shanghai Tongji University, Shanghai, 200090, P.R.China.

Objective: To explore the imaging features of intramedullary guide rod and its influence on the alignment of the femoral prosthesis in unicompartmental knee arthroplasty (UKA).

Methods: Between August 2016 and November 2016, 50 patients (50 knees) with primary anteromedial osteoarthritis were treated with UKA by Oxford MicroPlasty minimally invasive replacement system. There were 10 males and 40 females. Read More

Eur J Anaesthesiol 2019 Jan 10. Epub 2019 Jan 10.

From the Department of Anaesthesiology, Cork University Hospital and University College Cork, Cork, Ireland (DM, JM, JG, FL, GS, GI).

Background: Local infiltration analgesia (LIA) is an effective pain management technique following total knee arthroplasty (TKA).

Objective: To investigate if LIA provides better analgesia for patients undergoing unilateral TKA than intrathecal morphine.

Design: Randomised controlled trial. Read More

Knee 2019 Jan 10. Epub 2019 Jan 10.

Department of Orthopedic Surgery, Wollongong Hospital, 252 Loftus St & Locked Bag 8808, South Coast Mail Centre, Wollongong, New South Wales, Australia.

Background: Soft tissue tension significantly affects the function of total knee arthroplasties. This study aims to evaluate if there is a difference in soft tissue tension, comparing trails to cemented definitive components in TKA.

Methods: We prospectively compared femorotibial compartment pressures before and after cement fixation of the components in 40 primary TKA. Read More

J Arthroplasty 2018 Dec 24. Epub 2018 Dec 24.

OrthoCarolina Hip and Knee Center, Charlotte, NC.

Background: Obesity in the United States has reached epidemic proportions. It is associated with multiple higher rates of osteoarthritis of the hip and knee and thus an increasing need for total hip and knee arthroplasty. The demand for total joint arthroplasty among obese patients has increased and outpaces that of a non-obese cohort. Read More

J Orthop Traumatol 2019 Jan 14;20(1). Epub 2019 Jan 14.

The Joint Studio, Hollywood Medical Centre, Suite 1, 85 Monash Avenue, Nedlands, WA, 6009, Australia.

Background: A substantial proportion of patients undergoing lower limb arthroplasty are of working age. This study aims to identify when patients return to work (RTW) and if they return to normal hours and duties, and to identify which factors influence postoperative RTW. The hypothesis is that there is no difference in time of RTW between the different types of surgery, and no difference in time of RTW based on the physical demands of the job. Read More

Arch Bone Jt Surg 2018 Nov;6(6):577-581

Research performed at Shahid Modarress Hospital, Saveh, Markazi, Iran.

Ochronosis or black joints disorder is a rare autosomal recessive disorder caused by deficiency of homogentisic acid oxidase. Orthopaedic manifestations are common and mostly involve spine and large joints such as knee and hip. Arthropathy is progressive and will eventually leads to arthroplasty. Read More

Arch Bone Jt Surg 2018 Nov;6(6):523-531

Research performed at New England Baptist Hospital, Boston, MA, USA Brigham and Women's Hospital, Boston, MA, USA.

Background: Techniques that allow early muscle activation, such as closed kinetic chain (CKC) and open kinetic chain (OKC) exercises, may play a beneficial role in the early rehabilitation of the reconstructed knee. However, current rehabilitation regimens have not been shown to reverse post-operative quadriceps activation failure and weakness. To investigate whether patients who use a continuous active motion (CAM) device that follows closed kinetic chain principles have better early post-operative functional improvements than patients who use a continuous passive motion (CPM) device that follows the principles of open kinetic chain principles. Read More

Trop Doct 2019 Jan 12:49475518822239. Epub 2019 Jan 12.

5 Consultant Surgeon and Professor, Department of Trauma and Orthopaedics, Countess of Chester Hospital, Chester, UK.

Outcomes of arthroplasty in sub-Saharan Africa are not widely reported. To our knowledge, this systematic review is the first to explore this topic. Scopus, EMBASE, Medline and PubMed databases were searched, utilising MeSH headings and Boolean search strategies. Read More

Reg Anesth Pain Med 2019 Jan 11. Epub 2019 Jan 11.

Department of Anesthesiology, Rush University Medical Center, Chicago, Illinois, USA

Background And Objective: Differences in gene expression may provide insight into the biological pathways involved in chronic postsurgical pain (CPSP). We compared blood RNA microarrays preoperatively and postoperatively following total knee arthroplasty (TKA) in patients with and without CPSP.

Methods: Patients scheduled for primary TKA had whole blood samples obtained preoperatively and at 48 hours and 6 months postsurgery. Read More

BMC Med Res Methodol 2019 Jan 11;19(1):15. Epub 2019 Jan 11.

South Western Sydney Clinical School, UNSW Sydney, Level 2, Clinical Building, Liverpool Hospital, Cnr Elizabeth and Goulburn Sts, Liverpool NSW, 2170, Australia.

Background: Patient reported outcomes are increasingly used to assess the success of surgical procedures. Patient reported complications are often included as an outcome. However, these data must be validated to be accurate and useful in clinical practice. Read More

Osteoarthritis Cartilage 2019 Jan 8. Epub 2019 Jan 8.

Department of Occupational Therapy and Physiotherapy, Aalborg University Hospital, Hobrovej 18-22, 9000 Aalborg, Denmark.

Objective: This study aims to investigate the risk of total knee replacement (TKR) following tibia plateau fractures. Secondary the study aims to investigate the risk of knee arthroscopy following tibial plateau fractures.

Method: The study was designed as a matched cohort study. Read More

J Biomech 2018 Dec 31. Epub 2018 Dec 31.

Dartmouth College, Thayer School of Engineering, 14 Engineering Drive, Hanover, NH 03755, United States.

Total knee arthroplasty (TKA) is the most common joint replacement in the United States. Range of motion (ROM) monitoring includes idealized clinic measures (e.g. Read More

Eur J Orthop Surg Traumatol 2019 Jan 9. Epub 2019 Jan 9.

Department of Orthopedics, Faculty of Medicine, Prince of Songkla University, Hat Yai, Songkhla, 90110, Thailand.

Background: Venous thromboembolic disease (VTE) is a complication not uncommon following total knee arthroplasty. Postoperative bleeding-related complications are a concern in many guidelines. The authors aimed to compare the amount of postoperative drainage from closed suction drainage, transfusion rate, and postoperative complications between aspirin and rivaroxaban as VTE prophylaxes after total knee arthroplasty. Read More

J Am Acad Orthop Surg 2019 Jan 7. Epub 2019 Jan 7.

From the Adult Reconstruction and Joint Replacement Service (Dr. Sculco), the Department of Orthopaedic Surgery (Dr. Kahlenberg), and Limb Lengthening and Complex Reconstruction Service (Dr. Fragomen and Dr. Rozbruch), Hospital for Special Surgery, New York, NY.

Extra-articular deformities of the femur and tibia in conjunction with advanced knee osteoarthritis pose unique challenges for the arthroplasty surgeon. Careful preoperative planning is needed to evaluate both the intra- and extra-articular deformities and to determine the best route to total knee arthroplasty. An intra-articular compensatory correction can typically be performed if the extra-articular deformity is distant from the joint or if preoperative templating shows that bony cuts do not interfere with ligamentous attachments. Read More

J Orthop Surg Res 2019 Jan 8;14(1). Epub 2019 Jan 8.

Department of Orthopaedics, Stony Brook University Medical Center, HSC T-18, Room 080, Stony Brook, NY, 11794-8181, USA.

Purpose: With the increasing elderly population and obesity epidemic, diabetes is an important factor in arthroplasty planning. Although research suggests diabetes is associated with increased postoperative morbidity after hip and knee replacement, the effect of diabetes and varying management with insulin versus non-insulin agents on total shoulder arthroplasty (TSA) is not established.

Methods: All TSAs from 2015 to 2016 were queried from the American College of Surgeons National Surgical Quality Improvement Program database. Read More

Int Orthop 2019 Jan 7. Epub 2019 Jan 7.

Adult Reconstruction and Joint Replacement Service, Hospital for Special Surgery, New York, NY, 10021, USA.

Purpose: Patellofemoral arthroplasty (PFA) and total knee arthroplasty (TKA) are accepted treatments for end-stage isolated patellofemoral osteoarthritis (PFOA). However, complications and re-operations have historically differed between the two procedures. We performed a systematic review to report on the re-operation rates between TKA and modern PFA for isolated PFOA. Read More

Arch Orthop Trauma Surg 2019 Jan 7. Epub 2019 Jan 7.

Adult Reconstruction and Joint Replacement Division, Hospital for Special Surgery, 535 E 70th Street, New York, NY, 10021, USA.

Background: Increased age, obesity, and American Society of Anesthesiologists (ASA) Physical Status class III and IV have been reported as predictors for mortality and perioperative complications. High-volume institutions rely on central referral services as first contact point for patients. The current study reports on a simple four-step questionnaire to identify patients with ASA-physical status class III and IV to improve referral processes and optimize perioperative work ups. Read More

J Arthroplasty 2018 Dec 17. Epub 2018 Dec 17.

Department of Orthopaedic Surgery, Lenox Hill Hospital, New York City, NY.

Background: The use of biologic therapies for the management of knee osteoarthritis has increased, despite insufficient evidence of efficacy. Our aim was to complete a systematic review and analysis of reports utilizing the highest level-of-evidence evaluating: (1) platelet-rich plasma injections (PRPs); (2) bone marrow-derived mesenchymal stem cells (BMSCs); (3) adipose-derived mesenchymal stem cells (ADSCs); and (4) amnion-derived mesenchymal stem cells (AMSCs).

Methods: PubMed, Embase, and Cochrane Library databases were queried for studies evaluating PRP injections, BMSCs, ADSCs, and AMSCs in patients with knee osteoarthritis. Read More

J Arthroplasty 2018 Dec 1. Epub 2018 Dec 1.

Department of Orthopaedic Surgery, Keck School of Medicine of University of Southern California, Los Angeles, CA.

Background: Comprehensive Care for Joint Replacement (CJR) is a Medicare initiative to test the impact of holding a hospital accountable for services provided during an episode of care for a lower extremity joint arthroplasty on costs and quality. This study examines whether hospital participation in CJR is associated with having programs focused on improving posthospitalization care or reducing costs using a survey of orthopedic surgeons.

Methods: Seventy-three (of 104) orthopedic surgeon members of the Hip Society, a national professional organization of hip surgeons, completed the survey. Read More

J Arthroplasty 2018 Dec 17. Epub 2018 Dec 17.

Department of Orthopaedic Surgery, Duke University Hospital, Durham, NC.

Background: The Comprehensive Care for Joint Replacement (CJR) model has resulted in the evolution of preoperative optimization programs to decrease costs and hospital returns. At the investigating institution, one center was not within the CJR bundle and has dedicated fewer resources to this effort. The remaining centers have adopted an 11 metric checklist designed to identify and mitigate modifiable preoperative risks. Read More

Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi 2018 Oct;32(10):1271-1274

Department of Burn and Plastic Surgery, Affiliated Hospital of Zunyi Medical University, Zunyi Guizhou, 563000,

Objective: To summarize the effectiveness of Ilizarov technique in the correction of flexion contracture deformity of the knee after burn.

Methods: Between April 2012 and July 2017, Ilizarov technique was used to treat 14 cases (17 knees) of knee flexion contracture patients. There were 11 males (13 knees) and 3 females (4 knees), with an age of 20-48 years (mean, 37 years). Read More

Bone Joint J 2019 Jan;101-B(1):22-23

University College London Hospitals; The Princess Grace Hospital; The NIHR Biomedical Research Centre at UCLH, London, UK.

Bone Joint J 2019 Jan;101-B(1):41-46

The Royal Infirmary of Edinburgh, Edinburgh, UK.

Aims: The primary aim of this study was to compare the knee-specific functional outcome of patellofemoral arthroplasty with total knee arthroplasty (TKA) in the management of patients with patellofemoral osteoarthritis.

Patients And Methods: A total of 54 consecutive Avon patellofemoral arthroplasties were identified and propensity-score-matched to a group of 54 patients undergoing a TKA with patellar resurfacing for patellofemoral osteoarthritis. The Oxford Knee Score (OKS), the 12-Item Short-Form Health Survey (SF-12), and patient satisfaction were collected at a mean follow up of 9. Read More

Bone Joint J 2019 Jan;101-B(1):7-14

Department of Orthopaedic Surgery and Traumatology, Joint Research OLVG, Amsterdam, The Netherlands.

Aims: We performed a meta-analysis investigating the association between preoperative psychological distress and postoperative pain and function after total knee arthroplasty (TKA).

Materials And Methods: Pubmed/Medline, Embase, PsycINFO, and the Cochrane library were searched for studies on the influence of preoperative psychological distress on postoperative pain and physical function after TKA. Two blinded reviewers screened for eligibility and assessed the risk of bias and the quality of evidence. Read More

Bone Joint J 2019 Jan;101-B(1):24-33

University College London Hospitals; The Princess Grace Hospital; The NIHR Biomedical Research Centre at UCLH, London, UK.

Aims: The objectives of this study were to compare postoperative pain, analgesia requirements, inpatient functional rehabilitation, time to hospital discharge, and complications in patients undergoing conventional jig-based unicompartmental knee arthroplasty (UKA) versus robotic-arm assisted UKA.

Patients And Methods: This prospective cohort study included 146 patients with symptomatic medial compartment knee osteoarthritis undergoing primary UKA performed by a single surgeon. This included 73 consecutive patients undergoing conventional jig-based mobile bearing UKA, followed by 73 consecutive patients receiving robotic-arm assisted fixed bearing UKA. Read More

World J Orthop 2018 Dec 18;9(12):300-303. Epub 2018 Dec 18.

Good Hope Hospital Part of the University Hospital Birmingham, Birmingham B75 7RR, United Kingdom.

Background: Metallosis describes the build-up of metal debris in the soft tissues after a period of metal on metal articulation. This debris can be asymptomatic or lead to catastrophic implant failure, which can present acutely, as in this case, or over a period of time. This report highlights how a metal clip used to hold the polyethylene liner to the tibial base plate broke 5 years after implantation, dislodged from its original position and went on to cause post-operative knee metallosis. Read More

World J Orthop 2018 Dec 18;9(12):285-291. Epub 2018 Dec 18.

Fondren Orthopedic Group, Houston, TX 77030, United States.

Aim: To determine social, logistical and demographic factors that influence time to discharge in a short stay pathway (SSP) by following total knee arthroplasty (TKA).

Methods: The study included primary TKA's performed in a high-volume arthroplasty center from January 2016 through December 2016. Potential variables associated with increased hospital length of stay (LOS) were obtained from patient medical records. Read More

Orthop Traumatol Surg Res 2018 Dec 27. Epub 2018 Dec 27.

The MSK Lab-Imperial college London, South West London Elective Orthopaedic Centre, London, United Kingdom.

Background: Mobile bearing unicompartmental knee arthroplasty (UKA) Oxford™ components are recommended to be systematically and mechanically aligned (MA) for restoring the constitutional lower-limb alignment. Good long-term clinical outcomes have been generated with the medially implanted MA Oxford™, but some sub-optimal biomechanical-related complications still remain. Kinematic Alignment (KA) is a personalised technique for anatomically and kinematically implanting components (total knee, fixed bearing partial knee, total hip) aimed at creating more physiological prosthetic joint biomechanics. Read More

J Knee Surg 2018 Dec 28. Epub 2018 Dec 28.

Center for Joint Preservation and Replacement, Rubin Institute for Advanced Orthopedics, Baltimore, Maryland.

Decreasing postoperative pain for total knee arthroplasty (TKA) patients has been an area of continued effort for healthcare providers. These efforts have been incentivized by legislative reform, which ties reimbursement for hospitals and providers to patient perception of care. Press Ganey (PG) surveys quantify patient satisfaction, and the "pain management" domain is thought to be the best metric for assessing pain intensity. Read More

J Sci Med Sport 2018 Dec 21. Epub 2018 Dec 21.

Epworth HealthCare, Australia; Department of Surgery, The University of Melbourne, Australia; Australian Orthopaedic Association National Joint Replacement Registry, Australia.

Objectives: Knee injury is strongly associated with the development of knee osteoarthritis. While there is preliminary evidence for an increased risk of knee replacement (KR) surgery after sports injury, no studies have investigated this at a population level. This population-level study aimed to quantify the likelihood of KR surgery and direct healthcare costs 10-15 years after sports injury. Read More

Adv Gerontol 2018 ;31(3):416-422

S.P.Botkin Moscow City Hospital, 5, 2nd Botkinsky pr., Moscow, 125284, Russian Federation.

The analysis of results of knee arthroplasty performed in two groups of patients - 40 patients of senile age and 40 long-livers, taking into account their comorbidity was perfomed. Patients with the Charlson comorbidity index of 5-8 points, subject to hospitalization on the profile for pre-examination and inpatient treatment of aggravating somatic pathology, as preparation for a future knee replacement surgery. Results after the operation in the groups on the scale KOOS was 78±8,18 and 76±11,36, and according to WOMAC 142±4,6 and 151±4,8, respectively. Read More

Zhongguo Gu Shang 2018 Dec;31(12):1156-1163

Department of Orthopaedics, Ningbo No.2 Hospital, Ningbo 315010, Zhejiang, China;

Objective: Meta-analysis was used to compare the clinical efficacy of high tibial osteotomy(HTO) and unicondylar arthroplasty (UKA) in the treatment of medial compartment osteoarthritis (MIOA) and provide a better surgical choice for patients with MIOA.

Methods: The Cochrane Library (Issue 6, 2017), PubMed, Ovid, ELSIVE, CNKI and Wanfang databases were searched by a computer. Literatures on HTO and UKA for MIOA from January 1, 1970 to June 30, 2017, including complications, knee joint score, knee mobility, revision rate and excellent and good rate, were searched and screened out according to the inclusion criteria, and strict quality evaluation was carried out. Read More

Br J Anaesth 2019 Jan 27;122(1):131-140. Epub 2018 Oct 27.

Department of Anesthesiology, Critical Care and Pain Management, Hospital for Special Surgery, Weill Cornell Medical College, New York, NY, USA; Department of Anesthesiology, Perioperative Medicine and Intensive Care Medicine, Paracelsus Medical University, Salzburg, Austria. Electronic address:

Background: Studies on the effectiveness of multimodal analgesia, particularly in patients at higher perioperative risk from obstructive sleep apnoea (OSA), are lacking. We aimed to assess the impact of multimodal analgesia on opioid use and complications in this high-risk cohort.

Methods: We conducted a population-based retrospective cohort study of OSA patients undergoing elective lower extremity joint arthroplasty (2006-16, Premier Healthcare database). Read More

Surg Technol Int 2018 Dec 20;34. Epub 2018 Dec 20.

Joint Implant Surgeons, Inc., New Albany, Ohio, White Fence Surgical Suites, LLC New Albany, Ohio, Mount Carmel Health System, Columbus, Ohio.

Background: Treatment of isolated lateral compartment arthritic disease with partial knee arthroplasty remains underutilized in comparison to medial unicompartmental arthroplasty. This study examines the survival and outcome of lateral unicompartmental arthroplasty utilizing the first implant specifically developed for the lateral compartment.

Materials And Methods: A retrospective review was performed to detect lateral unicompartmental arthroplasty procedures performed in our practice between January 2013 and May 2016. Read More

Geriatr Orthop Surg Rehabil 2018 5;9:2151459318804113. Epub 2018 Dec 5.

Department of Orthopaedics, Maimonides Medical Center, Brooklyn, NY, USA.

Introduction: From 2000 to 2010, the cohort of patients aged 85 to 94 years had the fastest growth rate increasing in size by approximately 30%. The need for total knee arthroplasty (TKA) continues to increase with a larger percentage of patients older than 80 years requiring TKA. The purpose of our study was to examine the rate and risks of 30-day complications and unplanned readmission in patients older than 80 years. Read More

Medicine (Baltimore) 2018 Dec;97(51):e13663

Department of Orthopaedic Surgery, The Third Hospital of Hebei Medical University, Shijiazhuang, Hebei, China.

The aim of the present study was to evaluate the efficacy and safety of preoperative celecoxib administration in alleviating postoperative pain in knee osteoarthritis (OA) patients undergoing total knee arthroplasty (TKA).A total of 226 knee OA patients underwent TKA were consecutively recruited and randomized into preoperative analgesia group and postoperative analgesia group as 1:1 ratio. Preoperative analgesia group received celecoxib before and post operation; postoperative analgesia group received celecoxib post operation, all patients received TKA and intravenous patient-controlled analgesia (PCA) post operation. Read More

Medicine (Baltimore) 2018 Dec;97(51):e13371

Department of Anesthesiology, Taipei Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, New Taipei City.

Rationale: Red man syndrome (RMS) is the most common allergic reaction to vancomycin. It generally occurs during rapid infusion of vancomycin; only few cases have been reported as results of local vancomycin administration. We hereby report a rare case where RMS developed after insertion of vancomycin-loaded bone cement in a primary total knee replacement (TKR). Read More

Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi 2018 Dec;32(12):1518-1523

Department of Orthopedics, General Hospital of Chinese PLA, Beijing, 100853,

Objective: To investigate the effect of accuracy of phase 3 Oxford prosthesis positioning on short-term effectiveness of unicompartmental knee arthroplasty (UKA).

Methods: The clinical data of 26 patients (26 knees) who were treated with UKA between September 2015 and November 2015 was retrospectively analyzed. The single-peg Oxford prosthesis was implanted in 15 patients (single-peg group), and twin-peg Oxford prosthesis was implanted in 11 patients (twin-peg group). Read More

Arthroplast Today 2018 Dec 16;4(4):499-504. Epub 2018 Oct 16.

Primary Joint Outcomes Unit, Musgrave Park Hospital, Belfast, Northern Ireland.

Background: The use of tranexamic acid (TXA) in total hip replacement (THR) typically reduces blood loss by approximately 400 mL, and typical total blood loss is still approximately 1 L. A barrier to harnessing the full potential of TXA is disagreement on the optimum timing of administration. To address this, we aimed to identify the period of greatest blood loss. Read More

Int Orthop 2018 Dec 18. Epub 2018 Dec 18.

Department of Orthopaedic Surgery, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, 222 Banpo-Daero, Seocho-Gu, Seoul, 06591, South Korea.

Purpose: To compare (1) the recovery pattern of post-operative physical activity and function in the early post-operative period and (2) the difference of participation in recreational and sports activities pre- and post-operatively following unicompartmental knee arthroplasty (UKA) and high tibial osteotomy (HTO).

Methods: In this prospective comparative study, 49 HTOs (49 patients) and 42 UKAs (42 patients) performed to treat medial compartmental knee osteoarthritis (OA) were included. The pain visual analog scale (VAS), Western Ontario and McMaster Universities Osteoarthritis Index score (WOMAC), Tegner activity score, Lysholm knee score, and the University of California at Los Angeles (UCLA) activity score were evaluated pre-operatively and post-operatively at three, six, 12, and 24 months. Read More

Arthroplast Today 2018 Dec 22;4(4):484-487. Epub 2018 Sep 22.

Illinois Sports Medicine & Orthopedic Surgery Center, Morton Grove, IL, USA.

Background: Total joint arthroplasty (TJA) is trending toward shorter hospitalizations; as a result, there are many ambulatory surgical centers (ASCs) starting to perform outpatient TJA. However, there are limited studies examining the safety of outpatient TJA in the freestanding ASC setting. This study aims to evaluate 30-day and 90-day complication rates in patients who underwent outpatient TJA at a freestanding, independent ASC with direct discharge to home. Read More