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| Today’s Top Story
Study: What Affects Pivot Shift in ACL-deficient Knees?
A retrospective study published online in Arthroscopy evaluated how time to surgery and meniscal injuries impact knee rotational laxity in anterior cruciate ligament (ACL)-deficient knees. A total of 94 unilateral ACL-injured patients (mean age, 27.3 years; 50 were female) underwent the pivot-shift test and a quantitative evaluation using an electromagnetic measurement system preoperatively. Patients were stratified into four groups based on time to surgery: group 1, within three months (n = 22); group 2, between three and six months (n = 29); group 3, between six and 12 months (n = 23); and group 4, more than 12 months (n = 20). Patients were also assessed for meniscal injuries. Group 4 had significantly greater tibial acceleration, which was positively associated with time from injury to surgery. Patients with a lateral meniscal injury in groups 1, 2, and 3 had significantly greater tibial acceleration compared to patients with a medial meniscal injury and without meniscal injury. When excluding patients with lateral meniscal injury, accelerations were significantly greater in group 4 than the other groups.
Read the abstract… |
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| In Other News
Study: Perioperative Outcomes of Operative Hip Fracture Patients with Heart Failure
A study published in the Feb. 1 issue of the Journal of the AAOS examined how heart failure with preserved ejection fraction (HFpEF) affects perioperative outcomes during hip surgery. The Nationwide Inpatient Sample was queried for data on hip fracture patients undergoing total hip arthroplasty, hemiarthroplasty, or open/closed reduction with internal and external fixation from January 2005 to December 2013. Comparisons were made between patients without heart failure and those with HFpEF; the outcome was incidence of perioperative major adverse cardiovascular and cerebrovascular events (MACCE), defined as in-hospital all-cause death, acute myocardial infarction, and in-hospital cardiac arrest or acute ischemic stroke. Of the 2,020,712 total hospitalizations identified, perioperative MACCE presented in 67,554 (3.3 percent)—an estimated annual incidence of 7,506 events. Patients with HFpEF, compared to nonheart failure patients, were more likely to sustain MACCE.
Read the abstract… |
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| Study Assesses Impact of Side Struts on Strength in Arm Plaster Splints
According to a study published in the February issue of the Journal of Pediatric Orthopaedics, adding one and two side struts to a long arm plaster splint significantly increased strength and was comparable to half fiberglass casts. This biomechanical study tested five long arm posterior slab splint categories: four-inch plaster without side struts, four-inch plaster with a medial side strut, four-inch plaster with medial and lateral side struts, five-inch plaster without side struts, and four-inch fiberglass splint material without side struts. Each group had four splints. A control group was included that tested four half fiberglass long arm casts. Each splint and cast underwent a three-point bending load to mimic an extension moment at the elbow. Maximum load to failure was highest in the four-inch plaster splints reinforced with two struts, significantly outperforming the four-inch plaster splits with one strut and without struts. There were no significant differences in maximum load between the four-inch plaster splints with two struts and the half fiberglass casts. The five-inch plaster splints without side struts outperformed the splints constructed with fiberglass material without side struts.
Read the abstract… |
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| Study Determines Efficacy of MRI to Detect Spine Fractures in Ankylosing Spondylitis Patients
A retrospective study published online in the European Spine Journal assessed the value of MRI in operative patients with ankylosing spondylitis (AS) after low-energy trauma (LET) and no-energy trauma (NET). The diagnostic and operative plan was assessed for AS patients with new and/or repeated complaints who underwent total spine MRI. Final analysis included 92 patients with LETs and 12 patients with NETs. Following CT and X-ray in 16 patients (15.4 percent), occult fractures were discovered on MRI scans; in 10 of these patients, the choice had been made to follow conservative therapy, and no fracture was observed on CT or X-ray In six LET patients, two fracture heights presented, but fractures were only visible on one height on X-ray and CT.
Read the study… |
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| The Joint Commission Updates Total Hip and Knee Replacement Certification Requirements
The Joint Commission released its updated total hip and knee replacements requirements for hospitals and ambulatory surgical centers that are part of the Advanced Total Hip and Total Knee Replacement Certification program. Among the new requirements, which take effect on July 1, participating groups are required to follow AAOS clinical practice guidelines.
Read more…
Read the new criteria… |
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| AAOS Now
Liability and Billing Concerns
This article concludes a two-part series on telemedicine (TM). Patient demand for faster knowledge transfer via TM will increase as TM expands into other specialties and geographic regions. Due to physical examination constraints, TM will likely best serve as a triage platform for orthopaedics and as a follow-up option for remote or infirmed patient. This article addresses liability and compensation concerns associated with TM.
Read more…
Read part one… |
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| Your AAOS
Kappa Delta Orthopaedic Research and OREF Clinical Research Award Recipients Announced
AAOS is proud to announce the recipients of the 2020 Kappa Delta Orthopaedic Research Awards and the Orthopaedic Research and Education Foundation (OREF) Clinical Research Award. The awards, which recognize those who have performed orthopaedic research that is of high significance and impact, will be presented during the Orthopaedic Research Society Annual Meeting in Phoenix. The recipients are:
- The Kappa Delta Young Investigator Award: Alice Huang, PhD, for research in tendon development, healing, and regeneration
- Kappa Delta Ann Doner Vaughn Award: Marc Swiontkowski, MD, FAAOS, for research in hip fractures
- Kappa Delta Elizabeth Winston Lanier Award: Carl Deirmengian, MD, FAAOS, for the first Food and Drug Administration-authorized diagnostic test for use in orthopaedics
- OREF Clinical Research Award: Braden C. Fleming, PhD, for research into the long-term outcomes of ACL reconstruction with a focus on post-traumatic osteoarthritis
Read more about Dr. Huang…
Read more about Dr. Swiontkowski…
Read more about Dr. Deirmengian…
Read more about Dr. Fleming… |
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