Ipsilateral above-knee amputation in patient with recurrent dislocation after total hip arthroplasty: A case report.

Amputation secondary to vascular complications of recurrent dislocations after total hip arthroplasty (THA) is an extremely rare. We describe an unusual case of above-knee amputation resulting from vascular complications after recurrent dislocations of a THA. A 63-year-old male patient with walking pain and limp has a history of acetabular fracture and central dislocation of the femoral head.

Three-dimensional femur morphology analysis for the optimal location of subtrochanteric osteotomy with an implanted Wagner cone stem in total hip arthroplasty for Crowe type IV developmental dysplasia of the hip.

Background: This study aimed to accurately evaluate the matching of proximal and distal femoral segments and fitting of the femur-femoral stem in patients with Crowe type IV developmental dysplasia of the hip (DDH) who have undergone subtrochanteric osteotomy at different locations with an implanted Wagner cone stem to improve the rate of the bone union at the osteotomy site.

Methods: Three-dimensional femur morphology of 40 patients with Crowe type IV DDH was evaluated at each cross-section to determine the femoral cortical bone area. This study focused on five osteotomy lengths (2.

Effect of open-wedge high tibial osteotomy and lateral patellofemoral retinacular release on patellar position: an X-ray imaging-based comparative study.

Background: Open-wedge high tibial osteotomy (OWHTO) may cause adverse changes in the mechanical environment of the patellofemoral joint. For patients with lateral patellar compression syndrome or patellofemoral arthritis, intraoperative management is still challenging. The effect of lateral retinacular release (LRR) on patellofemoral joint mechanics after OWHTO remains unclear.

[Propensity score-matched study of uni-condylar arthroplasty in elderly patients with knee osteoarthritis].

Objective: To investigate the clinical efficacy of unicompartmental knee arthroplasty (UKA) in the treatment of knee osteoarthritis in patients over 75 years old.

Methods: The clinical efficacy of primary fixed platform UKA in patients with osteoarthritis, was retrospectively analyzed from October 2014 to November 2020. Age, body mass index (BMI), range of motion (ROM), preoperative joint function score, the quality of life score and other preoperative indicators were measured by propensity score matching (PSM).

[Effect of open wedge tibial high osteotomy on patella position and joint function].

Objective: To investigate the effect of open wedge tibial high osteotomy on patella position, anterior knee pain and joint function.

Methods: From June 2016 to June 2021, 109 patients (111 knees) with medial knee osteoarthropathy treated by open wedge tibial high osteotomy were included according to the inclusion and exclusion criteria, including 41 males and 68 females;the age ranged from 38 to 78 years old with an average of(57.98±7.

Mid-Term Outcomes of Cemented Stem and Subtrochanteric Shortening Derotational Osteotomy in Total Hip Arthroplasty for Crowe IV Developmental Dysplasia.

Objective: Performing subtrochanteric osteotomy with cemented components in patients with Crowe IV developmental dysplasia of the hip (DDH) is technically challenging and not widely reported. This study aimed to evaluate the mid-term outcomes of cemented stem total hip arthroplasty (THA) with subtrochanteric femoral shortening and transverse derotational osteotomy in patients with Crowe IV DDH.

Methods: Data collected from patients with Crowe IV DDH who underwent cemented stem THA with subtrochanteric femoral shortening and transverse derotational osteotomy between 2010 and 2018 were retrospectively evaluated.

Effect of platelet-rich plasma scaffolding combined with osteochondral autograft transfer for full-thickness articular cartilage defects of the femoral condyle.

We aimed to investigate the local application methods of platelet-rich plasma (PRP) and the effect and safety of PRP scaffolding combined with osteochondral autograft transfer (OAT) in the treatment of full-thickness articular cartilage defects of the femoral condyle. Patients with cartilage defects of the femoral condyle were treated with OAT combined with PRP scaffolding between July 2017 and December 2020. Preoperative magnetic resonance imaging (MRI) and computed tomography were utilized to assess the size, location, and severity of the osteochondral defects.

The impact of novel anchored barbed suture for capsular closure on hospital length of stay after total knee arthroplasty: a retrospective cohort study.

Objective: The aim was to evaluate whether using novel anchored barded suture for capsular closure can further shorten the length of stay following primary total knee arthroplasty (TKA) within existed enhanced recovery after surgery (ERAS) protocol in osteoarthritis patients.

Methods: A retrospective cohort study was conducted among osteoarthritis patients aged 18 to 80 years without major comorbidities who underwent primary unilateral TKA between January 2018 and December 2019 was conducted. The capsular closure techniques, interventions for ERAS, operation time and length of stay were collected via hospital electronic information system.

Pseudotumor and delayed recurrent dislocation after total hip arthroplasty with a modular femoral neck: A case report.

Rationale: Pseudotumor formation after hip arthroplasty is a rare complication that can occur not only at the head-neck junction but also at the modular neck-stem junction. Dislocation is a challenging and common complication of primary and revision total hip arthroplasty compared with other complications. Similarly, the association between pseudotumors and delayed recurrent dislocation remains unclear.

Intra-articular injections of platelet-rich plasma vs. hyaluronic acid in patients with knee osteoarthritis: Preliminary follow-up results at 6-months.

The aim of the present study was to compare the clinical and economic benefits of intra-articular injections of platelet-rich plasma (PRP) and hyaluronic acid (HA) in Chinese patients with knee osteoarthritis (OA). A total of 86 patients (42 treated with PRP and 44 with HA) were treated with three weekly intra-articular injections. The inclusion criteria included patients between 18 and 75 years of age, with chronic knee pain or swelling lasting >3 months and X-ray findings of degenerative joint alterations according to the Kellgren-Lawrence score grade I-III.

A comprehensive program for enhanced management of femoral neck fractures including an enhanced recovery after surgery program: A retrospective study.

To retrospectively analyze the functional outcomes and complications in patients who underwent hip arthroplasty with enhanced recovery after surgery (ERAS) program for femoral neck fractures.Between June 2015 and May 2019, 1138 patients with femoral neck fractures were treated in our department. According to the Garden classification system, 467 cases were type III and 671 cases were type IV with an average age of 74.

Gene Expression Profiling of the Sciatic Nerve in Streptozotocin-Induced Diabetic Rats with Peripheral Neuropathy.

Aims: To investigate the candidate biomarkers and molecular mechanisms involved in the early phase of experimental diabetic peripheral neuropathy (DPN).

Methods: Diabetes in Sprague-Dawley rats was induced with streptozotocin (STZ) treatment, followed with neurological tests and histological examinations to assess the neuropathic symptoms of DPN. Microarray was performed on the sciatic nerve tissues from control rats and DPN rats at then6th week after diabetes induction, and differentially expressed genes (DEGs) between them were identified and applied for further bioinformatic analyses.

Arthroscopic all-inside repair with suture hook for horizontal tear of the lateral meniscus at the popliteal hiatus region: a preliminary report.

Background: Arthroscopic surgery procedures vary depending on the types of meniscus tear, including meniscectomy and meniscus repair. Among the several types of meniscus tear, the horizontal tear of the lateral meniscus at the popliteal hiatus region is a common injury, and its surgical treatment is still inconsistent.

Methods: Between January 2018 and October 2018, 20 patients who underwent all-inside repair with suture hook for the horizontal tear of the lateral meniscus at the popliteal hiatus region were recruited.

[Fixed-bearing unicompartmental knee arthroplasty for medial compartmental knee osteoarthritis].

Objective: To evaluate short-term clinical results of fixed-bearing unicompartmental knee arthroplasty (UKA) for patients with medial compartmental knee osteoarthritis.

Methods: From January 2015 to December 2017, 62 patients with medial compartmental knee osteoarthritis were treated by fixed-bearing UKA. Among them, including 19 males and 43 females, aged from 47 to 83 years old with an average of (65.

[Clinical outcome of enhanced recovery after surgery for hemiarthroplasty for the treatment of femoral neck fractures in elderly patients].

Objective: To analyze and evaluate the clinical outcomes of enhanced recovery after surgery(ERAS) for hemiarthroplasty for the treatment of femoral neck fractures in elderly patients.

Methods: From January 2015 to December 2016, 466 patients with femoral neck fractures were admitted in our department. Among them, 154 patients were more than 80 years old, with an average age of (83.

Biomechanical Analysis of a Novel Intercalary Prosthesis for Humeral Diaphyseal Segmental Defect Reconstruction.

Objective: To study the biomechanical properties of a novel modular intercalary prosthesis for humeral diaphyseal segmental defect reconstruction, to establish valid finite element humerus and prosthesis models, and to analyze the biomechanical differences in modular intercalary prostheses with or without plate fixation.

Methods: Three groups were set up to compare the performance of the prosthesis: intact humerus, humerus-prosthesis and humerus-prosthesis-plate. The models of the three groups were transferred to finite element software.

[Short-term effectiveness of total hip arthroplasty for post-traumatic osteoarthritis secondary to acetabular fracture].

Objective: To discuss the short-term effectiveness of total hip arthroplasty (THA) for post-traumatic osteoarthritis secondary to acetabular fracture.

Methods: Between January 2004 and March 2012, the clinical data was analyzed retrospectively from 12 cases (13 hips) of post-traumatic osteoarthritis secondary to acetabular fracture undergoing THA. Of 12 patients, 6 were male and 6 were female, with an average age of 55.

[Short-term result of hip resurfacing arthroplasty in the treatment of patients with femoral head necrosis].

Objective: To study short-term results of hip resurfacing arthroplasty (HRA) in the treatment of patients with avascular necrosis of femoral head (ANFH), and to explore indication and strategy in this surgery.

Methods: From December 2006 to December 2009, 37 patients (43 hips) with avascular necrosis of femoral head were treated with total hip resurfacing arthroplasty. Among the patients, 25 patients were male and 12 patients were female, with an average age of 44.

[Case-control study on acute colonic pseudo-obstruction after total hip or knee arthroplasty].

Objective: To investigate the incidence, predisposing factors and therapeutic modalities of acute colonic pseudo-obstruction (ACPO) in patients after total hip arthroplasties (THA) and total knee arthroplasties (TKA).

Methods: From January 2006 to December 2009, 12 patients with ACPO after THA and TKA operation were investigated retrospectively,who were viewed as the ACPO group. There were 10 males and 2 females with an average age of (78 +/- 12) years in the ACPO group.

[Comparison of humeral head replacement and internal fixation for the treatment of 3 parts and 4 parts fractures of proximal humerus in the elderly].

Objectives: To compare the indication, technical keys during surgery and early results of humeral head replacement and internal fixation for the 3 parts and 4 parts fractures of proximal humerus in the elderly.

Methods: From July. 2004 to July.

[Hip resurfacing arthroplasty in patients with ankylosing spondylitis].

Objective: To study the short-term results of metal on metal hip resurfacing arthroplasty (HRA) for the treatment of patients with ankylosing spondylitis (AS), to explore the indications and technology of this surgery.

Methods: From February 2006 to April 2008, 11 patients (15 hips) with ankylosing spondylitis were treated with metal on metal total hip resurfacing arthroplasty. Among them, 9 patients were male, and 2 patients were female, with an average age of 32.