Xi-gong Li

Suzhou University, Suchow, Anhui Sheng, China

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Publications (4)4.59 Total impact

  • No preview · Article · Feb 2011 · Orthopedics
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    ABSTRACT: A prospective randomized study was performed to compare the clinical and radiological results of primary total knee arthroplasties (TKAs) using a mini-midvastus approach or a mini-medial parapatellar approach in 134 patients. The mini-midvastus approach was used on 68 patients (group A) and the mini-medial parapatellar approach on 66 patients (group B). All knees were implanted with the same posterior-stabilized prosthesis by the same surgeon (T.-S.T.) with the same set of downsized instruments. Mean follow-up in both groups was 30.5 months (range, 24-48 months). Patients in group A achieved an active straight-leg raise and 90° of flexion significantly earlier (P=.017 and P=.025, respectively). However, no significant difference was detected between the groups with respect to range of movement and Knee Society scores at all the postoperative visits and at final follow-up (all, P>.05). In contrast, the tourniquet time was significantly longer in group A (P=.015), with a higher incidence of medialized tibial component (P=.031). We believe that the early clinical results are similar between the mini-midvastus and mini-medial parapatellar approach. The mini-medial parapatellar approach is easier to initially apply and provides better visualization for TKA.
    No preview · Article · Oct 2010 · Orthopedics
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    Xi-gong Li · Tian-si Tang · Jun-ying Sun
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    ABSTRACT: To retrospectively evaluate the results of operative treatment of transtectal transverse fractures of the acetabulum. From May 1990 to July 2006, 40 patients with displaced transtectal transverse fracture of the acetabulum were treated surgically. A mean postoperative follow-up of 88.6 months' (range, 16-121 months) was achieved in 37 patients. Final clinical results were evaluated by a modified Merle d'Aubigné and Postel grading system. Postoperative radiographic results were evaluated by the Matta criteria. Fracture and radiographic variables were analyzed to identify possible associations with clinical outcome. Fracture reduction was graded as anatomic in 31 patients, imperfect in 4 and unsatisfactory in 2. Two hips were diagnosed to have subtle instability by postoperative radiography. The clinical outcome was graded as excellent in 16 patients, good in 14, fair in 4 and poor in 3. The radiographic result was graded as excellent in 14 patients, good in 15, fair in 4 and poor in 4. There was a strong association between the final clinical and radiographic outcomes. Variables identified as risk factors for unsatisfactory results included residual displacement greater than 2 mm, comminuted fracture of the weight bearing dome, postoperative subtle hip instability and damage to the cartilage of the femoral head. The uncomplicated radiographic appearance of transtectal transverse fracture belies its complexity. Comminuted fracture of the weight bearing dome, unsatisfactory fracture reduction, subtle hip instability and damage to the cartilage of the femoral head are risk factors for the clinical outcome of transtectal transverse fracture of the acetabulum.
    Preview · Article · Feb 2010 · Orthopaedic Surgery
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    ABSTRACT: We performed 16 cementless total hip arthroplasties in 12 patients with Crowe type IV congenital dislocation of the hip using double chevron subtrochanteric shortening derotational osteotomy. The average age of the patients was 50 years (range, 40-57 years). Average follow-up was 5.6 years (range, 3-8 years). All the cups were placed at the level of the true acetabulum. Radiographically, the hip center was nearly normalized by a distal displacement of 3.5 mm and a medial displacement 3.9 mm of the actual center of rotation compared to the optimal center of rotation. At the time of final follow-up, the mean Harris hip score improved from 45.5 points (range, 35-60 points ) to 89.1 points (range, 79-97 points). The Trendelenburg sign was corrected from a positive preoperative status to a negative postoperative status in nine of 16 hips. There were no acetabular and femoral components revised or loosening. All osteotomy sites were healed by 3 to 6 months without complications.
    Preview · Article · Oct 2009 · The Journal of arthroplasty