At this year’s American Academy of Orthopaedic Surgeons (AAOS) Annual Meeting, Hospital for Special Surgery (HSS) presented several studies related to innovations and leading research in orthopedics:

Antibiotic Cement Spacer Increases Risk of Acute Kidney Injury

• Jose Rodriguez, MD, published a study that found that acute kidney injury occurred in roughly 15 percent of patients receiving an antibiotic cement spacer during total knee arthroplasty revision for periprosthetic joint infection. Read the full press release here.

Study Finds Discrepancy between Doctor Reviews Posted on Hospital Websites and Reviews on Independent Physician Rating Sites

• Researchers from HSS including Alexander McLawhorn, MD, MBA, and Bradford Waddell, MD, found that hospital surveys filled out by patients provide data of a higher quality and are a better indication of patient satisfaction. Read the full press release here.

Knee Instability Common after Knee Replacement Revision for Periprosthetic Joint Infection

• Jose Rodriguez, MD, investigated the rate of knee instability one year after a total knee arthroplasty revision for periprosthetic joint infection. Read the full press release here.

Study Finds "Dual Mobility" Hip Replacement Implant Reduces Risk of Dislocation

• Geoffrey Westrich, MD, presented a study that found that patients who received a newer implant known as a "dual mobility" hip replacement had zero dislocations. Read the full press release here.

Paper Addresses Challenges to Women Going into Orthopedic Surgery

• Karen Sutton, MD, published an article addressing concerns about pregnancy as a potential deterrent to women considering an orthopedic surgery residency. Read the full write-up here.

New Criteria Needed for Diagnosing Joint Infection in Partial Knee Replacements

• Michael Cross, MD, presented a study that indicated that clinicians should use different criteria to diagnose periprosthetic joint infection in a partial knee replacement versus a total knee replacement. Read the full press release here.

Decreased Bone Mineral Density Does Not Increase Sacral Fracture Risk in Spinal Fusion Patients

• Alexander P. Hughes, MD, published research that found that factors other than a low bone mineral density could contribute to bone fracture risk. Read the full press release here.

Study Finds 8th and 9th Graders at Highest Risk for Re-tearing ACL after Surgery

• Frank Cordasco, MD, MS, and Daniel Green, MD, MS, FAAP, FACS, studied the rate of teenage athletes re-tearing their ACL and assessed patients based on the amount of skeletal growth remaining. Read the full press release here.

Physician Education and Guidelines Lead to Big Drop in Opioids Prescribed after Ambulatory Hand Surgery

• Daniel Osei, MD, found that an education program for employees on opioid abuse led to a 45 percent decrease in opioids prescribed after hand surgery. Read the full press release here.

Study Suggests Poor Blood Supply Not the Cause of Healing Problems in Scaphoid Fractures

• Duretti Fufa, MD, published research that found that there is an even amount of blood supply in the scaphoid bone. Read the full press release here.

HSS Study Finds Consensus Needed for Joint Replacement Performance Measurement

• Researchers including Stephen Lyman, PhD; Alexander McLawhorn, MD, MBA and Catherine H. MacLean, MD, PhD, published research stating that current performance measures varied significantly depending on which method was applied when assessing outcomes for hip and knee replacements. Read the full press release here.

Could Bone Marrow Aspirate Improve Tendon Healing in Rotator Cuff Repair?

• Scott Rodeo, MD, evaluated the efficacy of bone marrow aspirate concentrate in improving tendon healing after rotator cuff repair. Read the full write-up here.

Study Finds Docking Technique Yields Better Vascularity in UCL Reconstructions

• Joshua Dines, MD, compared the two leading techniques, Docking and the Modified Jobe, for Tommy John surgeries. Read the full press release here.

Study Finds Flatfoot Reconstruction Effective for Older Patients

• In the first study of its kind, Scott Ellis, MD, studied the outcomes of flatfoot reconstruction on older patients. Read the full press release here.