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Lateral epicondylitis (LE) is a common disease especially at middle age. Different types of treatments have been used to address LE. Corticosteroid (CS) injections and dry needling (DN) are utilized options in the treatment. However, the question of which one is better has not been entirely discussed in the literature. We hypothesized that the use of DN to treat LE would be at least as effective as using CS injections. We compared the pain relief afforded and improvements in functional disability after DN and CS injection.<br /><br /> A total of 108 LE patients whose pain was not relieved by 3 weeks of first-line treatment were included in a randomized manner, using an online application into DN or CS groups (54 patients each). The minimum follow-up duration was 6 months. We recorded "Patient-Rated Tennis Elbow Evaluation"(PRTEE) scores before treatmentand after 3 weeks and 6 months of treatment.<br /><br /> Seven patients were excluded for various reasons; thus, 101 patients were finally evaluated. Before treatment, the groups were similar in terms of age, symptom duration, and PRTEE score, but after treatment, DN-treated patients showed better improvement in the PRTEE score than CS-treated patients (P &lt; .01). Both treatments were effective (both P &lt; .01). From assessments at 3 weeks and 6 months post-treatment, PRTEE scores decreased over time. Four CS-treated patients (7.6%) developed skin atrophy and whitening. One DN-treated patient (2.04%) could not tolerate the pain of the intervention and withdrew from treatment.<br /><br /> DN and CS injection afforded significant improvements during the 6 months of follow-up. However, compared with CS injection, DN was more effective.<br /><br />DN and CS injection afforded significant improvements during the 6 months of follow-up. However, compared with CS injection, DN was more effective.<br /><br /> As the incidence of ulnar collateral ligament reconstruction (UCLR) surgery continues to rise, an improved understanding of baseball pitchers' perspectives on the postoperative recovery process and return to pitching is needed. The purpose of this study was to analyze pitchers' perspectives on recovery after UCLR.<br /><br /> During the 2018 baseball season, an online questionnaire was distributed to the certified athletic trainers of all 30 Major League Baseball (MLB) organizations. These athletic trainers then administered the survey to all players within their organization including MLB and 6 levels of Minor League Baseball. MLB or Minor League Baseball pitchers who had previously undergone UCLR and participated in a rehabilitation program (or were currently participating in one at time of the survey) were included in the study.<br /><br /> There were 530 professional pitchers who met inclusion criteria. The majority (81%) of pitchers began rehabilitation within 2 weeks of surgery, with 51% beginning within 1 week. The majoy had to alter their throwing mechanics to return to pitching. Surgeons and athletic trainers should aim to understand the UCLR recovery process from the pitchers' perspective to better counsel future patients recovering from UCLR.<br /><br /> To evaluate the contact area of the radiocapitellar joint with forearm pronation and supination under axial loading.<br /><br /> Six healthy volunteers (2 males and 4 females, mean age 44.6 years) were included in the study. A computed tomography scan of the extended elbow joints was obtained at 4 positions of forearm full pronation with or without loadand full supination with or without load. Mimics, 3-matic Medical, Geomagic, and Photoshop were used to reconstruct 3-dimensional models. The contact area of the radiocapitellar joint was measured. Shifting of the center of the contact area of the radiocapitellar joint was measured.<br /><br /> The axial load added 8.6% and 10.5% contact area to pronation and supination without load, respectively. From pronation without load, the center of contact area significantly shifted 2.4 ± 1.1 mm anteromedially to supination without load and shifted by 1.0 ± 0.5 mm to the center of the radial head compared with the pronation with load. The center of the contact area significantly shifted 2.4 ± 1.5 mm anteromedially from the pronation to the supination under loading. The contact area of the tuberosity anterior in the radial head significantly increased by 14% (without load) and 8% (with load) from pronation to supination.<br /><br /> Axial loading increases the contact area of the radiocapitellar joint. The center of the contact area of the radiocapitellar joint changed according to loading and shifted to the anterior tuberosity of the radial head from forearm pronation to supination.<br /><br />Axial loading increases the contact area of the radiocapitellar joint. [https://www.selleckchem.com/products/l-ornithine-l-aspartate.html selleck compound] The center of the contact area of the radiocapitellar joint changed according to loading and shifted to the anterior tuberosity of the radial head from forearm pronation to supination.<br /><br /> Restoration of proximal humeral anatomy (RPHA) after total shoulder arthroplasty (TSA) has been shown to result in better clinical outcomes than is the case in nonanatomic humeral reconstruction. Preoperative virtual planning has mainly focused on glenoid component placement. Such planning also has the potential to improve anatomicpositioning of the humeral head by more accurately guiding the humeral head cutand aid in the selection of anatomic humeral component sizing. It was hypothesized that the use of preoperative 3-dimensional (3D) planning helps to reliably achieve RPHA after stemless TSA.<br /><br /> One hundred consecutive stemless TSA (67 males, 51 right shoulder, mean age of 62 ±9.4 years) were radiographically assessed using pre- and postoperative standardized anteroposterior radiographs. The RPHA was measured with the so-called circle method described by Youderian etal. We measured deviation from the premorbid center of rotation (COR), and more than 3 mm was considered as minimal clinically important diff precise. A poorly performed humeral head cut was the main reason for overstuffing, which was seen in 88% of the cases with inaccurate RPHA. Preoperative small HHD, low HHH, and varus-angulated HNA are risk factors for poor RPHA after stemless TSA.<br /><br />Restoration of proximal humeral anatomy after stemless TSA using computed tomography (CT)-based 3D planning was not precise. A poorly performed humeral head cut was the main reason for overstuffing, which was seen in 88% of the cases with inaccurate RPHA. Preoperative small HHD, low HHH, and varus-angulated HNA are risk factors for poor RPHA after stemless TSA.