Balance training benefits chronic ankle instability with generalized joint hypermobility: a prospective cohort study.

Background: Balance training is the first choice of treatment for chronic ankle instability (CAI). However, there is a lack of research on the effects of balance training in CAI with generalized joint hypermobility (GJH). This study is to compare the outcomes of balance training in CAI patients with and without GJH.

Outcomes After Hip Arthroscopy for Femoroacetabular Impingement Syndrome in Chinese Patients: A Minimum 2-Year Follow-up Study.

Background: Most of the research data of arthroscopic treatment for femoroacetabular impingement syndrome (FAIS) have been generated from Western populations.

Purpose: To report the minimum 2-year follow-up results after hip arthroscopy for FAIS in Chinese patients.

Study Design: Case series; Level of evidence, 4.

Comparison and analysis of skiing injuries at ski resorts in Chongli, China and Japan.

Purpose: The rapid development of winter sports requires investigation on injuries in Chongli district, Zhangjiakou city, one of the ski sites of the 2022 Winter Olympics. Careful evaluation is required to observe which injuries are caused under what circumstances, and then we can make corresponding preventive measures and recommendations based on the results.

Methods: In this retrospective study, the data of injury cases at ski resorts in China (Chongli district) and Japan were analyzed to provide a reference for the ongoing injury prevention at ski resorts.

Arthroscopic Anatomical Double-Bundle Medial Patellofemoral Complex Reconstruction Improves Clinical Outcomes in Treating Recurrent Patellar Dislocation Despite Trochlear Dysplasia, Elevated Tibial Tubercle-Trochlear Groove Distance, and Patellar Alta.

Purpose: To evaluate the clinical outcomes of arthroscopically assisted double-bundle medial patellofemoral complex reconstruction (MPFC-R).

Methods: A retrospective review was carried out among adult patients who experienced at least 2 patellar dislocations and underwent primary arthroscopically assisted MPFC-R between January 2014 and November 2019. Dejour classification, tibial tubercle-trochlear groove (TT-TG) distance, and patellar height (with Insall-Salvati index) were measured.

Arthroscopic modified Broström procedure achieves faster return to sports than open procedure for chronic ankle instability.

Purpose: To compare the clinical outcomes, rate of return to sports, postural control, and muscle strength between the arthroscopic and open modified Broström procedure for chronic lateral ankle instability (CLAI) patients.

Methods: From September 2018 to April 2019, 70 patients diagnosed with CLAI were prospectively included with arthroscopic modified Broström procedure (n = 36) and open modified Broström procedure (n = 34). They were evaluated at five time points (preoperation and 3 months, 6 months, 1 year and 2 years postoperatively).

Delayed Wound Healing After Achilles Tendon Suture: An Arthroscopic Solution.

This technical note describes an arthroscopic technique for treating delayed wound healing after Achilles tendon suture. Ankle arthroscopy is used to clean up the inflammatory tissues and foreign bodies that lead to delayed wound healing, with the advantages of simple postoperative care and low infection risk. This method may provide a less traumatic and low-risk option for the treatment of delayed wound healing after Achilles tendon surgery.

The effectiveness and sustainability of supervised balance training in chronic ankle instability with grade III ligament injury: a one-year prospective study.

Background: To determine the effectiveness and sustainability of supervised balance training in people with chronic ankle instability (CAI) with grade III ligament injury.

Methods: Twenty young adults (12 males and 8 females) diagnosed with CAI with grade III ligament injury underwent 3 months of supervised balance training. The self-reported functional questionnaire, plantar pressure (walking and single leg standing), and isokinetic ankle strength were consecutively evaluated at pre-training, 3 months, 6 months and one year.

Meniscus repair with simultaneous anterior cruciate ligament reconstruction: Clinical outcomes, failure rates and subsequent processing.

Purpose: To retrospectively analyze the clinical outcomes of meniscus repair with simultaneous anterior cruciate ligament (ACL) reconstruction and explore the causes of failure of meniscus repair.

Methods: From May 2013 to July 2018, the clinical data of 165 patients who were treated with meniscus surgery and simultaneous ACL reconstruction, including 69 cases of meniscus repair (repair group) and 96 cases of partial meniscectomy (partial meniscectomy group) were retrospectively analyzed. The exclusion criteria were as follows: (1) ACL rupture associated with fracture, collateral ligament injury, or complex ligament injury; (2) a history of knee surgery; or (3) a significant degree of osteoarthritis.

Extracapsular subcutaneous endoscopic treatment for refractory lateral epicondylalgia: technique, retrospective results, and prognostic factors.

Background: The extracapsular subcutaneous endoscopic treatment is a new and under-researched approach to the endoscopic treatment of refractory lateral epicondylalgia. We aimed to introduce the techniques of the method and the mid-long term clinical effects. Furthermore, we intended to identify demographic and surgical-related factors correlated with prognosis of extracapsular subcutaneous method.

Association between time from anterior cruciate ligament injury to reconstruction and morphological changes of the intercondylar notch using MRI and arthroscopy.

Background: Few studies have measured the dimensions of intercondylar notch under direct arthroscopic visualization. The purpose of our study was to analyse the association between time from anterior cruciate ligament (ACL) injury to reconstruction and the morphological changes of intercondylar notch using magnetic resonance imaging (MRI) and arthroscopy.

Methods: Data was collected for patients who received knee arthroscopic surgery during 2014-2015.

Novel method for diagnosing lateral patellar compression syndrome using X-ray: a retrospective case-control study.

Background: A well-established reference is lacking for diagnosing lateral patellar compression syndrome (LPCS), and this diagnosis currently depends on clinicians' subjective judgment and several examination results. X-rays are primarily used to diagnose LPCS, but they have low detection rates of patellar tilt using the congruence angle (CA) and patellar tilting angle (PTA).

Methods: We enrolled 87 patients (31 men and 56 women; mean age: 42.

Endoscopic Surgery for Delayed Wound Healing After Achilles Tendon Suture Repair: A Report of Three Cases.

Background: Delayed wound healing is a potention complication after Achilles tendon suture repair and occurs for various reasons. The conventional treatment for delayed wound healing is open surgery, but patients face long recovery times and postoperative care is difficult.

Case Presentation: This report presents three patients who were seen at our institute from April 2008 to October 2017 due to long-term non-healing wounds after surgery.

Secondary Effects of the Rupture and Reconstruction of the Interosseous Talocalcaneal Ligament on the Peritalar Joints.

BACKGROUND The interosseous talocalcaneal ligament (ITCL) is the main soft-tissue contributor to subtalar joint stability. The role of ITCL reconstruction in retaining this stability is minimally reported. Therefore, we conducted this study to investigate the effects of rupture and reconstruction of the ITCL on the subtalar and peritalar joints.

Characteristics and predictors of muscle strength deficit in mechanical ankle instability.

Purpose: Muscle strength training is a common strategy for treating chronic ankle instability (CAI), but the effectiveness decreases for mechanical ankle instability (MAI) patients with initial severe ligament injuries. The purpose of this study was to investigate the characteristics and the potential predictors of muscle strength deficit in MAI patients, with a view to proposing a more targeted muscle strength training strategy.

Methods: A total of 220 MAI patients with confirmed initial lateral ankle ligament rupture and a postinjury duration of more than 6 months were included.

Functional follow-up after endoscopic calcaneoplasty for Haglund's deformity using the biodex isokinetic muscle testing system: A case series.

Isokinetic muscle strength test implemented by the Biodex system is a method used for evaluating muscle function that has been applied clinically in the field of sports and rehabilitation medicine. However, information on its application on Haglund's deformity remain insufficient. Therefore, the present study examined the effectiveness of the muscle strength test using the Biodex system in evaluating the recovery of athletic capacity in patients with Haglund's deformity following endoscopic surgery.

Risk Factors for Osteochondral Lesions and Osteophytes in Chronic Lateral Ankle Instability: A Case Series of 1169 Patients.

Background: Osteochondral lesions (OCLs) and bony impingement are common secondary lesions of chronic lateral ankle instability (CLAI), but the risk factors that predict OCLs and bony impingement are unknown.

Purpose: To analyze the risk factors for the development of OCLs and osteophytes in patients with CLAI.

Study Design: Case-control study; Level of evidence, 3.

Elevated lipid levels in patients with achilles tendon ruptures: a retrospective matching study.

Background: Achilles tendon rupture (ATR) can lead to significant disability of patients. However, whether serum lipid levels are associated with ATR is still unclear. This study aimed to examine the difference in lipid levels between patients with and those without ATR.

The effect of cyclic knee motion on the elongation of four-strand hamstring autograft in anterior cruciate ligament reconstruction: an in-situ pilot study.

Background: Pretension of the viscoelastic graft by cyclic knee motion has been confirmed to decrease the graft creep and improve the outcome of anterior cruciate ligament (ACL) reconstruction. The purpose of the present study was to investigate the effect of cyclic knee motion on the elongation of the four-strand hamstring tendon autograft in situ and to explore the stable level cycle, in which the tendon length achieved a stable level.

Methods: The study was performed with 53 consecutive patients undergoing transtibial ACL reconstruction with four strand hamstring tendon from Aug 2013 to Apr 2015.

Acetabular Labral Reconstruction With Autologous Tendon Tissue in a Porcine Model: In Vivo Histological Assessment and Gene Expression Analysis of the Healing Tissue.

Background: Acetabular labral reconstruction with autologous tendons is the preferred method for treating a severely damaged labrum. However, the healing process of implants remains unknown. Similar to the human acetabular labrum, the porcine acetabular labrum is a fibrocartilage-like tissue.

The Hug-up Test: A New, Sensitive Diagnostic Test for Supraspinatus Tears.

Background: The supraspinatus tendon is the most commonly affected tendon in rotator cuff tears. Early detection of a supraspinatus tear using an accurate physical examination is, therefore, important. However, the currently used physical tests for detecting supraspinatus tears are poor diagnostic indicators and involve a wide range of sensitivity and specificity values.

[Effect of anterior cruciate ligament rupture on hamstring: quadriceps ratio during isokinetic knee extension and flexion at 30 degrees of flexion].

Objective: To evaluate the change in hamstring (H):quadriceps (Q) ratio following anterior cruciate ligament (ACL) rupture during isokinetic knee extension and flexion at 30 degrees of flexion which is important for knee dynamic function.

Methods: A study was performed in 25 male complete unilateral ACL ruptures. Isokinetic concentric and eccentric quadriceps and hamstring muscle tests in both the deficient knees and intact knees were performed at 60°/s, respectively.

Relationship between quadriceps strength and patellofemoral joint chondral lesions after anterior cruciate ligament reconstruction.

Background: The incidence of the patellofemoral joint chondral lesions after anterior cruciate ligament reconstruction (ACLR) is disturbingly high. Few studies have assessed the factors affecting patellofemoral joint chondral lesions postoperatively.

Hypothesis: The recovery of quadriceps strength after ACLR could be associated with patellofemoral joint cartilage damage.

Comparative study on immediate versus delayed meniscus allograft transplantation: 4- to 6-year follow-up.

Background: Meniscus allograft transplantation (MAT) is generally used for patients who sustain symptoms after meniscectomy, which could be called delayed MAT. Meniscus allograft transplantation for patients immediately after meniscectomy has not been reported.

Hypothesis: Compared with the conventional delayed MAT, immediate MAT might provide better clinical results and reduce joint degeneration.

Repair of large full-thickness cartilage defect by activating endogenous peripheral blood stem cells and autologous periosteum flap transplantation combined with patellofemoral realignment.

Minimal-invasive procedure and one-step surgery offer autologous mesenchymal stem cells derived from peripheral blood (PB-MSCs) a promising prospective in the field of cartilage regeneration. We report a case of a 19-year-old male athlete of kickboxing with ICRS grade IV chondral lesions at the 60° region of lateral femoral trochlea, which was repaired by activating endogenous PB-MSCs plus autologous periosteum flap transplantation combined with correcting the patellofemoral malalignment. After a 7.