Early functional recovery after two-stage surgery with an allogenic bone graft for baseplate loosening in reverse shoulder arthroplasty: a case report.

Objectives: Reverse shoulder arthroplasty (RSA) for cuff tear arthropathy results in good shoulder function. However, RSA is associated with several complications, including infection, dislocation of the shoulder joint, implant loosening, and axillary nerve palsy. Several problems may also occur on the glenoid side, including bone defects of the glenoid, baseplate loosening, and displacement of the sphere.

Factors Affecting Incomplete L5/S Posterior Lumbar Interbody Fusion, Including Spinopelvic Sagittal Parameters.

Study Design: Retrospective observational study.

Purpose: In this study we identify risk factors, including patient demographics, sagittal parameters, and clinical examinations, affecting incomplete L5/S posterior lumbar interbody fusion (PLIF).

Overview Of Literature: The lumbosacral spine is considered to have an interbody fusion rate lower than that of the lumbar spine, but few studies have investigated the cause, including investigating the pelvis.

Risk Factors Affecting Cage Retropulsion into the Spinal Canal Following Posterior Lumbar Interbody Fusion: Association with Diffuse Idiopathic Skeletal Hyperostosis.

Study Design: This was a retrospective observational study.

Purpose: We identify risk factors, including physical and surgical factors, and comorbidities affecting cage retropulsion following posterior lumbar interbody fusion (PLIF).

Overview Of Literature: Diffuse idiopathic skeletal hyperostosis (DISH) is considered a risk factor for reoperation after PLIF.

Activities of Daily Living after Surgical Treatment for Osteoporotic Vertebral Fracture with or without Diffuse Idiopathic Skeletal Hyperostosis: A Retrospective Single-Institutional Study.

Study Design: This investigation was a retrospective observational study.

Purpose: The aim of this study was to evaluate whether having diffuse idiopathic skeletal hyperostosis (DISH) as a comorbidity affects the patient's ability to perform activities of daily living (ADL) after surgical treatment for osteoporotic vertebral fracture (OVF).

Overview Of Literature: A few studies have extensively evaluated elderly patients with comorbidities such as DISH and OVFinduced persistent back pain and their ability to perform ADL postoperatively.

Surgical Treatment of Osteoporotic Vertebral Fracture Associated with Diffuse Idiopathic Skeletal Hyperostosis along with Comparative Assessment of the Levels of Affected Vertebra or Anterior Column Reconstruction.

Introduction: Surgical treatment of osteoporotic vertebral fracture (OVF) often involves older patients with various comorbidities; thus, attending physicians must pay special attention to the invasiveness of surgical procedures and possible perioperative complications. In this retrospective observational study, we investigated the relationship between OVF and diffuse idiopathic skeletal hyperostosis (DISH) by examining the clinical characteristics and surgical outcomes.

Methods: Subjects comprised 26 patients (14 men, 12 women) who underwent surgical treatment for OVF complicated by DISH.

Correlation between ultrasonographic findings and symptoms of knee osteoarthritis.

Objectives: Knee osteoarthritis (OA) is mainly diagnosed by clinical and radiographic findings. The aim of this study was to evaluate the correlation between ultrasonography (US) findings during flexion and knee loading and symptoms of knee OA.

Methods: We studied 33 knees with OA in 21 patients.

Mechanical simulation study of postoperative displacement of trochanteric fractures using the finite element method.

Background: Femoral trochanteric fractures are common among older adults. In the reduction of trochanteric fractures, acquiring the support of the anterior cortex at the fracture site on lateral view immediately after surgery is important. However, even if the cortical support is acquired, postoperative displacement due to the loss of this support often occurs.

Cine MRI of the Triangular Fibrocartilage Complex during Radial-Ulnar Deviation.

 Changes in the shape of the triangular fibrocartilage complex (TFCC) during radial-ulnar deviation were studied using "cine-mode" magnetic resonance imaging (MRI) in 10 right wrists of healthy volunteers, 5 wrists of TFCC tear, and 5 wrists of ulnar styloid nonunion.  The wrist was fixed in a custom acrylic device, which only allows radial and ulnar deviation. Coronal MR images of nine radial-ulnar deviated positions (every 5 degree from 15 degrees radial deviation to 25 degrees ulnar deviation) were obtained in volunteers and patients.

Analysis of the Postoperative Displacement of Trochanteric Fractures on Lateral View Radiographs.

Achieving sufficient support of the anterior cortex of the femoral neck is a fundamental goal of the reduction of trochanteric fractures. However, anterior-cortex support is often lost after the fracture reduction. Our aim was to analyze factors contributing to the postoperative displacement of an acceptably reduced trochanteric fracture.

Entrapment of the Flexor Hallucis Longus Tendon by Direct Impalement in the Osseofibrous Tunnel Under the Sustentaculum Tali: An Extremely Rare Complication of a Calcaneal Fracture: A Case Report.

Case: This article presents a case of entrapment of the flexor hallucis longus tendon in the osseofibrous tunnel under the sustentaculum tali due to a bone fragment from a calcaneal fracture. Despite good visualization with computed tomography, we did not recognize this complication preoperatively. Limited motion of the hallux was the key to recognition of this rare pathogenic situation.

Intraarticular injection of high molecular weight hyaluronan for osteoarthritis of the knee - prediction of effectiveness with biological markers.

Objective: The possibility of predicting the effectiveness of intraarticular injection of high molecular weight hyaluronan (HA) was investigated using biological markers.

Methods: In 32 patients with osteoarthritis (OA) of the knee, 38 knees were treated with HA injection, and the clinical symptoms were evaluated using the Japanese Orthopaedic Association (JOA) score and pain visual analog scale (VAS). The concentrations of chondroitin 6-sulfate, 4-sulfate (C6S, C4S), and aggrecan were measured in synovial fluid collected at the time of initiation of injection.

Joint biomarkers in idiopathic femoral head osteonecrosis: comparison with hip osteoarthritis.

Objective: To compare concentrations of joint biomarkers in synovial fluid (SF) between idiopathic osteonecrosis of the femoral head (ION) and osteoarthritis (OA) of the hip joint.

Methods: Levels of the joint biomarkers cartilage oligomeric matrix protein (COMP), antigenic keratan sulfate (AgKS), and hyaluronan (HA) in SF samples from 21 cases of ION and their relationship to disease stage and history of steroid use were assessed and compared to the result of 29 cases of hip OA.

Results: In both the ION and hip OA groups, levels of COMP and AgKS in SF showed a significant positive correlation.

The appearance of the lateral ulnar collateral ligament on magnetic resonance imaging.

The lateral ulnar collateral ligament is an important element of the elbow's lateral capsuloligamentous complex, and loss of integrity contributes to posterolateral rotatory instability. However, the normal appearance on magnetic resonance imaging is poorly defined. The purpose of this study was to assess the appearance of the lateral ulnar collateral ligament of asymptomatic elbows on magnetic resonance imaging.

Femoral shaft fracture callus formation after intramedullary nailing: a comparison of interlocking and Ender nailing.

Intramedullary nailing is widely used for the operative treatment of femoral fractures. Recently, the biologic healing of fractures has become better understood from fundamental investigations. However, there has been no clinical comparison between the fracture healing process with these two fixation methods.