Serial Radiographs Showing Progression of a Patellar Stress Fracture and Beneficial Surgical Technique for a Displaced Patellar Stress Fracture.

Stress fractures of the patella occurring in athletes are quite rare and only 23 cases have been introduced in English literatures. Stress fractures of the patella are classified into two types: transverse and longitudinal. They are mostly seen in the distal one-third of the patella on a plain lateral radiograph.

Medial rather than lateral knee instability correlates with inferior patient satisfaction and knee function after total knee arthroplasty.

Background: It is commonly thought that balanced medial and lateral tibiofemoral joint gaps are essential, but the effect of joint laxity on clinical outcome after total knee arthroplasty (TKA) is unclear. It was hypothesised that medial joint laxity correlates with inferior patient satisfaction and knee function, although lateral joint laxity is allowed to a certain degree in TKA.

Methods: This study included 50 knees that underwent primary TKA.

Incidence and Risk Factors of Anterior Arch Fracture of the Atlas Following C1 Laminectomy Without Fusion.

Study Design: A retrospective multicenter study.

Objective: To identify the incidence of anterior arch fracture (AAF) of the atlas following C1 (first cervical vertebra) laminectomy without fusion, and its risk factors.

Summary Of Background Data: C1 laminectomy without fusion is a widely accepted surgical procedure performed to decompress the spinal cord that is compromised at the C1/C2 level, but without instability.

Pathohistological investigation of osteochondral tissue obtained during total knee arthroplasty after osteochondral autologous transfer: a case report.

Background: Osteochondral autologous transfer is one of the repair techniques for cartilage defects of knee with promising knee function recovery. There are no reports including histopathological images concerning human osteochondral tissue after osteochondral autologous transfer. This is the first report to present pathohistological findings of transplanted plugs and host tissues extracted from the human body 3 years after osteochondral autologous transfer.

Infliximab equivalently suppresses oxidative stress compared to tocilizumab among well-controlled patients with rheumatoid arthritis.

Aim: This study was designed to investigate which biological agent, infliximab or tocilizumab, would more intensively keep suppressing oxidative stress among well-controlled patients as C-reactive protein (CRP) levels normalized in rheumatoid arthritis (RA). In addition, it was intended to clarify indicative factors of oxidative stress among well-controlled patients with RA.

Methods: We recruited 61 well-controlled (CRP < 0.

Spontaneous anterior arch fracture of the atlas following C1 laminectomy without fusion: A report of three cases and finite element analysis.

Background: Only four cases of anterior arch fracture after C1 laminectomy without fusion have been previously reported. Although atlas fractures commonly occur in response to high-energy trauma, no obvious trauma that could cause the fracture was observed in these reported cases. The purpose of this study was to elucidate the biomechanical mechanism of anterior arch fracture of the atlas following C1 laminectomy and present three cases of this fracture.

Glenoid bone loss in anatomic shoulder arthroplasty: literature review and surgical technique.

Despite major advances in total shoulder arthroplasty, management of severe posterior glenoid bone loss remains controversial. Several companies have provided alternative treatment options for type C glenoids associated with posterior subluxation of the humeral head. However, preoperative planning, proper selection of glenoid size, and recognition of the operative pitfalls are crucial for successful outcomes.

Arthroscopic lamina-specific double-row fixation for large delaminated rotator cuff tears.

Delamination is a commonly observed finding at the time of rotator cuff repair, but few studies have described the surgical techniques used for delaminated rotator cuff tears (RCTs) or their clinical outcomes. We developed a technique using a combination of a double row and an additional row, which we call lamina-specific double-row fixation, for large delaminated RCTs. The lamina-specific double-row technique is performed using an additional row (lamina-specific lateral row) of suture anchors placed between the typical medial and lateral rows of suture anchors.

Effect of Fatty degeneration of the infraspinatus on the efficacy of arthroscopic patch autograft procedure for large to massive rotator cuff tears.

Background: In a 2013 study involving 24 patients whose shoulders had large or massive rotator cuff tears (RCTs) and low-grade fatty degeneration of the infraspinatus (Goutallier stage 1 or 2), we reported significantly improved clinical results after an arthroscopic fascia lata autograft patch procedure, with a 79.2% rate of intact repairs. Based on that study, we began applying the fascia lata autograft patch procedure to shoulders with stage 3 or 4 degeneration of the supraspinatus and stage 3 or 4 degeneration of the infraspinatus.

Arthroscopic surgery of irreparable large or massive rotator cuff tears with low-grade fatty degeneration of the infraspinatus: patch autograft procedure versus partial repair procedure.

Purpose: This study aimed to compare the arthroscopic patch graft procedure and partial repair for irreparable large or massive rotator cuff tears (RCTs) in shoulders with low-grade fatty degeneration of the infraspinatus (stage 1 or 2 according to Goutallier et al.) in terms of the functional and structural outcomes.

Methods: This study included 24 patients who underwent the patch graft procedure (group A) and 24 patients who underwent partial repair (group B) for irreparable large or massive RCTs.