Latest journal articles about hip arthroplasty and reconstruction from Journal of Arthroplasty, The Bone & Joint Journal, Journal of Bone and Joint Surgery, Clinical Orthopaedics and Related Research, Acta Orthopaedica, Orthopedic Clinics of North, America, Journal of Orthopaedic Surgery and Research, Orthopedics

Related Articles Cementless Anatomic Total Hip Femoral Component With Circumferential Porous Coating for Hips With Developmental Dysplasia: A Minimum Ten-Year Follow-Up Period. J Arthroplasty. 2013 Jul 25; Authors: Kaneuji A, Sugimori T, Ichiseki T, Fukui K, Takahashi E, Matsumoto T Abstract Anatomic femoral components are optimized for primary osteoarthritis, and few long-term results for their use are available for developmental dysplasia of the hip (DDH). We reviewed 135 uncemented total hip arthroplasties in which an anatomic femoral component was used in 106 patients with DDH, excluding femurs with neck-shaft angles of >160° and femurs with anteversion of >50°. The mean age of patients at surgery was 49.4years (range, 33-66years), and the mean duration of follow-up was 13.5years (range, 10-18years). No osteoporotic femurs were included in our study group. Despite 18 acetabular revisions, no femoral component was removed for any reason. No femoral loosening was seen at the final follow-up examination. An anatomic femoral component with circumferential porous coating can produce good clinical and radiologic findings in young patients with good bone quality who have DDH without excessive femoral deformity. PMID: 23891053 [PubMed - as supplied by publisher]Read more... http://www.ncbi.nlm.nih.gov/pubmed/23891053?dopt=Abstract

Related Articles Effect of Body Mass Index on Limb Alignment After Total Knee Arthroplasty. J Arthroplasty. 2013 Jul 24; Authors: Estes CS, Schmidt KJ, McLemore R, Spangehl MJ, Clarke HD Abstract Prior studies have reported increased failure rates in obese patients with postoperative limb mal-alignment. This study was undertaken to determine if a relationship exists between postoperative limb alignment and BMI in patients undergoing primary TKA performed with mechanical instruments. An IRB-approved retrospective review of 196 knees was undertaken. Limb alignment was determined on full-length, standing, hip-to-ankle x-rays, preoperatively and postoperatively. The effects of gender, side, preoperative mechanical alignment and BMI on postoperative alignment were analyzed via multivariate regression analysis. Both preoperative mechanical limb alignment (P<0.001) and BMI (P=0.009) had a significant effect on postoperative limb alignment following TKA performed with mechanical instruments. PMID: 23890833 [PubMed - as supplied by publisher]Read more... http://www.ncbi.nlm.nih.gov/pubmed/23890833?dopt=Abstract

Related Articles Prevalence of Modifiable Surgical Site Infection Risk Factors in Hip and Knee Joint Arthroplasty Patients at an Urban Academic Hospital. J Arthroplasty. 2013 Jul 24; Authors: Pruzansky JS, Bronson MJ, Grelsamer RP, Strauss E, Moucha CS Abstract Surgical site infections after hip and knee arthroplasty can be devastating if they lead to periprosthetic joint infection. We examined the prevalence of the modifiable risk factors for surgical site infection described by the American Academy of Orthopaedic Surgery Patient Safety Committee. Our study of 300 cases revealed that only 20% of all cases and 7% of revision cases for infection had no modifiable risk factors. The most common risk factors were obesity (46%), anemia (29%), malnutrition (26%), and diabetes (20%). Cases with obesity or diabetes were associated with all histories of remote orthopedic infection, 89% of urinary tract infections, and 72% of anemia cases. The high prevalence of several modifiable risk factors demonstrates that there are multiple opportunities for perioperative optimization of such comorbidities. PMID: 23890832 [PubMed - as supplied by publisher]Read more... http://www.ncbi.nlm.nih.gov/pubmed/23890832?dopt=Abstract

Related Articles Barriers to Completion of Patient Reported Outcome Measures. J Arthroplasty. 2013 Jul 24; Authors: Schamber EM, Takemoto SK, Chenok KE, Bozic KJ Abstract Patient Reported Outcomes Measures (PROMs) are commonly used in total joint arthroplasty (TJA) to assess surgical outcomes. However certain patient populations may be underrepresented due to lower survey completion rates. The purpose of this study is to evaluate factors that influence PROM completion rates for 1997 TJA patients between 7/1/2007 and 12/31/2010. Completion rates were lower among patients who were over 75, Hispanic or Black, had Medicare or Medicaid, TKA patients and revision TJA patients (P<0.05 for all comparisons). Having multiple risk factors further reduced completion rates (P<0.001). Overall participation increased significantly during the study period, after electronic data capture methods were introduced. Awareness of these factors may help physicians and researchers improve participation of all patient populations so they are well represented in TJA outcomes research. PMID: 23890831 [PubMed - as supplied by publisher]Read more... http://www.ncbi.nlm.nih.gov/pubmed/23890831?dopt=Abstract

Related Articles Revision Total Hip and Knee Arthroplasty Implant Identification: Implications for Use of Unique Device Identification 2012 AAHKS Member Survey Results. J Arthroplasty. 2013 Jul 24; Authors: Wilson NA, Jehn M, York S, Davis CM Abstract FDA's Unique Device Identification (UDI) Rule will mandate manufacturers to assign unique identifiers to their marketed devices. UDI use is expected to improve implant documentation and identification. A 2012 American Association of Hip and Knee Surgeons membership survey explored revision total hip and knee arthroplasty implant identification processes. 87% of surgeons reported regularly using at least 3 methods to identify failed implants pre-operatively. Median surgeon identification time was 20min; median staff time was 30min. 10% of implants could not be identified pre-operatively. 2% could not be identified intra-operatively. UDI in TJA registry and UDI in EMR were indicated practices to best support implant identification and save time. FDA's UDI rule sets the foundation for UDI use in patient care settings as standard practice for implant documentation. PMID: 23890830 [PubMed - as supplied by publisher]Read more... http://www.ncbi.nlm.nih.gov/pubmed/23890830?dopt=Abstract

Related Articles Is Second Generation Metal-On-Metal Primary Total Hip Arthroplasty With a 28mm Head a Worthy Option?: A 12- to 18-Year Follow-Up Study. J Arthroplasty. 2013 Jul 24; Authors: Hwang KT, Kim YH, Kim YS, Choi IY Abstract To determine whether MoM THA with a small head is still worthy of use, we investigated survivorship, complications, and factors influencing failure. Of 149 consecutive patients (195 hips), 141 (180 hips) of mean age 43 (19-55) years were available for review at a mean of 14.4years postoperatively. Survivorship for cup revision for any cause was 97.8% at 18.4years postoperatively. Nine hips generated complaints of groin pain; six showed periacetabular osteolysis, one had pain without radiological change, and two were diagnosed as symptomatic pseudotumors. Four of six hips with periacetabular osteolysis or aseptic loosening were revised. Surgery- and patient-related factors had no effect in results. Our results are encouraging, however, further study will be necessary to determine the incidence and fates of pseudotumors after MoM THA with a small head. PMID: 23890829 [PubMed - as supplied by publisher]Read more... http://www.ncbi.nlm.nih.gov/pubmed/23890829?dopt=Abstract