Study Finds Favorable One-year Radiographic Outcomes with Short-stem Length RTSA
A retrospective study published online in the Journal of the AAOS ® found that reverse total shoulder arthroplasty (RTSA) with a short-stem humeral implant led to “excellent” postoperative outcomes after one year, with lower rates of early calcar osteolysis compared with standard-length stems (2.2 percent versus 12.9 percent). Initial and one-year postoperative outcomes from 137 short-length stem RTSAs were compared with 139 standard-length stem RTSAs. The short stem group had significantly higher rates of neutral stem alignment and diaphyseal filling ratio and fewer radiographic changes compared with the standard stem group.
Systematic Review: Autologous Chondrocyte Implantation versus Microfracture for Focal Chondral Defects of the Knee
A systematic review of six randomized controlled trials, published online in Arthroscopy, reported that third-generation autologous chondrocyte implantation (ACI) for the treatment of focal chondral defects of the knee joint led to a greater improvement in patient-reported outcomes compared with microfracture (MFx). Overall, 238 MFx patients and 274 ACI patients were included. Average follow up ranged from two to six years. ACI was associated with a lower failure rate (0 percent to 1.8 percent) compared with MFx (2.5 percent to 8.3 percent).
Study: Biplanar versus Uniplanar Imaging for Measuring Time to Entry Point and Distal Locking of Intramedullary Nails
A phantom study published online in BMC Musculoskeletal Disorders found that biplanar imaging during intramedullary nailing for fixation of diaphyseal femur and tibia fractures led to significantly reduced time to optimal entry point (EP) for retrograde femoral and antegrade tibial nailing compared with uniplanar imaging. Four surgeons performed antegrade and retrograde femoral and antegrade tibial nailing with biplanar and uniplanar imaging. Time to optimal EP was 26 seconds and 23 seconds with the biplanar device for retrograde femoral and antegrade tibial nailing, compared with 35 seconds and 49 seconds, respectively, for uniplanar imaging.
Systematic Review: Factors Associated with Quadriceps Weakness after ACLR
A systematic review published online in Knee Surgery, Sports Traumatology, Arthroscopy found that time since surgery, patellar versus hamstring tendon autografts, male sex, geographic location (United States versus Europe), and isokinetic speed were associated with reduced quadriceps strength after ACL reconstruction (ACLR). In total, 122 studies were selected, including 4,135 ACLRs. Time post-ACLR was associated with study effect size. Higher isokinetic-testing speed was associated with smaller deficits. Less than one-quarter of patients achieved >90 percent between-limb symmetry in quadriceps strength between six and 12 months post-ACLR.
Study: Predictors of Rebound Deformity after Tension Band Plate Removal in Pediatric Patients with Lower Limb Deformity
Male sex, younger age at time of tension band plate (TBP) surgery, short TBP implant duration, overcorrected extremity, and high growth velocity after TBP removal were risk factors for rebound deformity in pediatric patients treated for lower limb deformity, according to a study published online in the Journal of Pediatric Orthopaedics. At 43.7 months follow up, 43 of 59 limbs demonstrated rebound deformity. Femurs had more rebound than tibias. Limbs with a mechanical axis deviation of ≤1 had more rebound than limbs that were not overcorrected.
Orthopaedic surgeons from NYU Langone Health reviewed a video demonstrating minimally invasive lumbar transforaminal interbody fusion (TLIF). “Minimally invasive techniques continue to become increasingly popular in the field of spine surgery, with the goal of improving patient care,” the authors write, noting that the video provides surgeons with tips and tricks to successfully perform this procedure.
Full Participant Enrollment Is Open for the AAOS Fracture & Trauma Registry
In 2020, the AAOS Fracture & Trauma Registry (FTR) was announced as the fifth AAOS Registry, and a partnership was formed between the Orthopaedic Trauma Association (OTA) and FTR in 2021. FTR collects data on ankle fracture, distal femur fracture, distal radius fracture, hip fracture, and proximal humerus fracture. The FTR platform on AAOS Registry Insights ® has launched in preparation for open enrollment, which is now available in conjunction with the AAOS 2022 Annual Meeting. View the link below for more information on enrollment or reach out to RegistryEngagement@aaos.org.
