Study: Increased Hip Flexion and Anterior Acetabular Components May Predict Symptomatic Iliopsoas Impingement after THA
Increased hip flexion angle and protrusion of the anterior acetabular component were predictors of symptomatic iliopsoas impingement (IPI) according to a study published online in HIP International. A total of 218 hips were retrospectively reviewed. The leg-length discrepancy, implant alignment angles, pelvic inclination, and anterior cup protrusion on plain radiographs and CT scans were compared between hips with IPI (n = 24) and controls (n = 194). Hip flexion angles were significantly greater in hips with IPI pre- and postoperatively. Mean cup protrusion length was significantly greater in hips with IPI (4.7 mm) compared with hips without IPI (1.4 mm).
Study Reviews Use of Platelet-rich Plasma in Meniscus Repair Treatments
A meta-analysis published online in the Journal of Orthopaedic Surgery and Research compared the failure rate and patient-reported functional outcomes in meniscus repair augmented with and without platelet-rich plasma (PRP). Nine studies and 1,164 patients were included in the analysis. The primary outcomes included meniscus repair failure rate, International Knee Documentation Committee (IKDC) scores, the Lysholm knee scale, and visual analog scale (VAS) scores. The failure rate in PRP patients was significantly lower than in non-PRP patients. The PRP group had significantly improved VAS scores; however, there were no significant differences in IKDC and Lysholm knee scale scores between groups.
Study: Minimal Important Change and Patient Acceptable Symptom State after Proximal Interphalangeal Joint Arthroplasty
A prognostic study published online in The Journal of Hand Surgery assessed the minimal important change (MIC) and patient acceptable symptom state (PASS) for joint range of motion (ROM) after proximal interphalangeal (PIP) joint arthroplasty. A total of 196 patients with a one-year follow-up completed the brief Michigan Hand Outcomes Questionnaire, and their active PIP ROM was measured. On average, patients were satisfied with their postoperative ROM if they achieved PIP mobility of >66 degrees. Pain at rest and during activities was predictive for achieving a MIC but not a PASS.
Study: Psychological Factors Associated with Return to Play after Ulnar Collateral Ligament Reconstruction
A systematic review published online in the Orthopaedic Journal of Sports Medicine evaluated specific psychological factors that affect return to play (RTP) after ulnar collateral ligament (UCL) reconstruction and the proportion of failures to RTP because of psychological factors. Overall, eight studies consisting of 378 patients were included in the analysis. The overall RTP rate was 89.4 percent. The most common psychological factors affecting RTP were loss of interest and fear of reinjury at 28.8 percent and 5.8 percent, respectively. Psychological factors accounted for 40.4 percent of failures to RTP.
Retrospective Study Analyzes Risk Factors and Treatment Methods for Redislocation after Developmental Hip Dysplasia
The Journal of Pediatric Orthopaedics published a retrospective study online investigating risk factors and optimal treatment methods for redislocation in patients treated for developmental dysplasia of the hip (DDH). Demographic data and known risk factors were evaluated in 527 hips. The optimal treatment method was determined based on applied treatment (closed reduction and cast replacement versus repeating open reduction). Bilaterality and high-grade hip dislocations were associated with higher odds of redislocation. Recurrent redislocation and complication rates were significantly higher in redislocations treated with closed reduction and cast replacement.
AAOS members will soon receive the print edition of the October issue of AAOS Now, but the electronic edition is already available on the AAOS Now website. This month’s issue highlights ways to prevent and react to healthcare workplace violence, as well was the launch of the AAOS Membership App and a preview of CPT coding changes to the Evaluation & Management (E/M) and Musculoskeletal System sections for 2023.
New Course Tomorrow: Advanced Knee Virtual Miniseries
Grab a virtual front-row seat at the sessions happening in real time at the AAOS Advanced Techniques in Knee course to learn the latest clinical strategies for meniscus and cartilage implantation and advances in ACL treatment. This new two-part miniseries features digestible blocks of content, conveniently designed in short segments, and offers 3 CME credits. If you can’t make it live, register for a link to the course recording. The course takes place Thursday, Oct. 13, 6:30 to 8:50 p.m. CT, and Friday, Oct. 14, 12:50 to 1:30 p.m. CT.
