Executive Summary of the 2019 ISCD Position Development Conference on Monitoring Treatment, DXA Cross-calibration and Least Significant Change, Spinal Cord Injury, Peri-prosthetic and Orthopedic Bone Health, Transgender Medicine, and Pediatrics.

To answer important questions in the fields of monitoring with densitometry, dual-energy X-ray absorptiometry machine cross-calibration, monitoring, spinal cord injury, periprosthetic and orthopedic bone health, transgender medicine, and pediatric bone health, the International Society for Clinical Densitometry (ISCD) held a Position Development Conference from March 20 to 23, 2019. Potential topics requiring guidance were solicited from ISCD members in 2017. Following that, a steering committee selected, prioritized, and grouped topics into Task Forces. Chairs for each Task Force were appointed and the members were co-opted from suggestions by the Steering Committee and Task Force Chairs. The Task Forces developed key questions, performed literature searches, and came up with proposed initial positions with substantiating draft publications, with support from the Steering Committee. An invited Panel of Experts first performed a review of draft positions using a modified RAND Appropriateness Method with voting for appropriateness. Draft positions deemed appropriate were further edited and presented at the Position Development Conference meeting in an open forum. A second round of voting occurred after discussions to approve or reject the positions. Finally, a face-to-face closed session with experts and Task Force Chairs, and subsequent electronic follow-up resulted in 34 Official Positions of the ISCD approved by the ISCD Board on May 28, 2019. The Official Positions and the supporting evidence were submitted for publication on July 1, 2019. This paper provides a summary of the all the ISCD Adult and Pediatric Official Positions, with the new 2019 positions highlighted in bold.

Periprosthetic knee fractures. A review of epidemiology, risk factors, diagnosis, management and outcome.

BACKGROUND AND AIM OF THE WORK: Periprosthetic knee fractures incidence is gradually raising due to aging of population and increasing of total knee arthroplasties. Management of this complication represents a challenge for the orthopaedic surgeon. Aim of the present study is to critically review the recent literature about epidemiology, risk factors, diagnosis, management and outcome of periprosthetic knee fractures. METHODS: A systematic search of Embase, Medline and Pubmed was performed by two reviewers who selected the eligible papers favoring studies published in the last ten years. Epidemiology, risk factors, diagnostic features, clinical management and outcome of different techniques were all reviewed. RESULTS: 52 studies including reviews, meta-analysis, clinical and biomechanical studies were selected. CONCLUSIONS: Correct clinical management requires adequate diagnosis and evaluation of risk factors. Conservative treatment is rarely indicated. Locking plate fixation, intramedullary nailing and revision arthroplasty are all valuable treatment methods. Surgical technique should be chosen considering age and functional demand, comorbidities, fracture morphology and location, bone quality and stability of the implant. Given the correct indication all surgical treatment can lead to satisfactory clinical and radiographic results despite a relevant complication rate.

Frequency and Treatment Trends for Periprosthetic Fractures About Total Hip Arthroplasty in the United States.

BACKGROUND: Periprosthetic hip fractures (PPHFx) are challenging complications that have become increasingly more prevalent. Wide variability exists in the quality and size of prior studies pertaining to hospital stay information. This study used the largest publicly available database in the United States to evaluate perioperative hospital data of PPHFx. METHODS: The Healthcare Cost and Utilization Project-Nationwide Inpatient Sample was used to analyze trends related to the frequency, fracture type, mortality, treatment, patient demographics, time to surgery, length of stay (LOS), and hospital charges associated with PPHFx from 2006-2010. RESULTS: From 2006-2010, average patient age (76.7 years), hospital characteristics, rate of PPHFx, treatment choice, LOS (8.03 days), mortality (2.6%), disposition (78.1% to skilled nursing facility or inpatient rehab), and time to procedure (1.98 days) all remained relatively stable. The southern United States had the highest frequency of PPHFx and females had nearly twice the rate of PPHFx each year at an average of 67%. Despite these consistencies, hospital charges increased by an average of 8.3% per year over the study period ($27,683 over 5 years, P < .0001). CONCLUSION: In the era of containing cost while improving quality of care, this study demonstrates that despite consistent treatment trends of PPHFx, hospital charges are increasing independently. Regardless, surgeons can work to reduce LOS and charge to post acute care facilities to lessen spending. Refining our understanding of these relationships will be fundamental to further improving quality of care and cutting cost associated with these fractures.

Where do knee revisions for infection, fracture, and other revisions get treated?

Complicated knee revision procedures require specific expertise that may not be available across the healthcare network. Teaching hospitals appear to perform more knee revisions overall than urban or rural hospitals. We examined the location of care and payer status for all knee revisions including complex revisions (infection, periprosthetic fracture). Although only 39.7% of all primary total knee cases were performed in teaching hospitals, over half of all knee revisions were performed in teaching hospitals. Knee revision procedures, including treatment of periprosthetic infections and fractures are performed more often in teaching hospitals than in urban and rural settings combined. Reimbursement that does not match the cost of care for complex revision and infection cases may have a disproportionate impact on teaching hospitals.