Publications by authors named "Hanmei Dong"

Background: The relationship between hip rotational abnormalities and hip labral size has not been fully investigated.

Purposes: To (1) examine the correlation between rotational abnormalities of the hip and labral size, while also identifying other predictive values for hip labral size, and (2) explore whether femoral torsion will lead to increased labral size.

Study Design: Cross-sectional study; Level of evidence, 3.

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Acetabular cartilage delamination is commonly seen in patients with femoroacetabular impingement (FAI), especially ones with the cam deformity. However, the definition and classification of acetabular cartilage injuries caused by FAI to guide clinical treatment remain controversial. Moreover, treatment of acetabular cartilage damage always causes a dilemma for surgeon during surgery.

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Article Synopsis
  • Current treatments for labral tears include surgical options like debridement, repair, and reconstruction, with the latter used primarily for extensive degeneration detected during surgery.
  • The conventional labral reconstruction technique has several drawbacks, such as long operation times and complex graft harvesting, which can hinder surgical efficiency.
  • A new modified technique has been developed to streamline the surgical process, reduce operative time, and improve outcomes, showing promising clinical results over the past two years.
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With the increasing popularity of hip arthroscopy, postoperative iatrogenic instability due to bony and soft-tissue issues has been noted by more orthopaedic surgeons. Although there is a low risk of serious complications in patients with normal hip joint development even without suturing of the joint capsule, for patients with a preoperative high risk of anterior instability-including those with excessive anteversion of the acetabulum or femur, borderline dysplasia of the hip, and hip arthroscopic revision surgery with an anterior defect of the joint capsule-capsulotomy without repair will result in postoperative anterior instability of the hip joint and related symptoms. Capsular suturing techniques that provide anterior stabilization will be of great help for these high-risk patients and reduce the possibility of postoperative anterior instability.

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Article Synopsis
  • The study aimed to explore changes in the size of the acetabular labrum after arthroscopic repair and its impact on functional outcomes for patients with labral tears.
  • It involved analyzing MRI data from 82 patients before and after surgery, focusing on labral measurements and patient-reported outcomes over an average follow-up of about 39 months.
  • The results showed no significant changes in labral size post-surgery, but patients with larger preoperative labral heights experienced better functional outcomes compared to those with normal-sized labrums.
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Hip dysplasia is a developmental disorder that resulted in insufficient acetabular coverage. Current surgical treatments are technically demanding, complex, invasive, and often lead to associated complications. Therefore, the development of regenerative implants that fit to the bone and induce osteogenesis and chondrogenesis is in high demand.

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Background: Currently, there is no consensus regarding the accuracy of magnetic resonance imaging (MRI) in the detection of acetabular chondral delamination (ACD) in patients with femoroacetabular impingement (FAI), and, correspondingly, the preoperative diagnosis of ACD remains challenging.

Hypothesis: It was hypothesized that MRI would have relatively high accuracy in detecting ACD in patients with FAI.

Study Design: Cohort study (diagnosis); Level of evidence, 2.

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Synovial disease is a common reason for hip joint dysfunction. Although traditionally treated with open synovectomy, with the popularization and development of arthroscopic techniques, arthroscopic synovectomy has become the main surgical treatment for synovial diseases. Given the long soft tissue channel and learning curve, arthroscopic synovectomy of the hip joint has high surgical requirements for surgeons.

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Background: Acetabular labral tear is one of the contributing factors to early hip osteoarthritis. Patients with symptomatic labral tears may require surgical treatment, and labral reconstruction is indicated in cases of irreparable tears.

Purpose: The purpose of the study was to construct the bone morphogenic protein 2 (BMP-2) electrospun scaffold for acetabular labral reconstruction and analyze the composition of the labrum and the influence of collagen fiber distribution in regenerated tissue on the biomechanical properties of labrum.

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Background: Few studies mentioned acetabular rim osteophytes (ARO) after arthroscopy for femoroacetabular impingement (FAI) in follow-up after primary hip arthroscopy. We found that many patients had postoperative ARO, which may lead to recurrent or secondary pincer-type deformity after primary hip arthroscopy for FAI and postoperative ARO sometimes even led to revision surgery. It is necessary to carry out related research on ARO.

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