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find Author "DONGJiyuan" 2 results
  • EFFECTIVENESS OF ANATOMIC FEMORAL COMPONENT PROSTHESIS FOR SEVERE DEVELOPMENTAL DYSPLASIA OF THE HIP IN TOTAL HIP ARTHROPLASTY

    ObjectiveTo evaluate the effectiveness of anatomic femoral component prosthesis for severe development dysplasia of the hip (DDH) in total hip arthroplasty (THA). MethodsBetween September 2009 and September 2013, 48 patients (51 hips) with severe DDH underwent THA with cementless anatomic femoral component prosthesis. There were 5 males (5 hips) and 43 females (46 hips) with an average age of 51 years (range, 28-67 years). The left hip was involved in 25 cases, the right hip in 20 cases, and bilateral hips in 3 cases. There were 39 cases (44 hips) of Crowe type Ⅲ and 9 cases (7 hips) of Crowe type ⅠV. The visual analogue scale (VAS) score was 5.72±1.84, and Harris score was 41.66±4.87 at preoperation. All patients had leg discrepancy with a length difference of (4.31±0.84) cm. ResultsThe duration of surgery was 59-110 minutes (mean, 78.6 minutes), and the hospitalization days were 6-20 days (mean, 12.3 days). All patients obtained primary healing of incision without wound related complications of swelling, effusion, and infection. Two patients were found to have intramuscular venous thrombosis. All patients were followed up 10-54 months (mean, 29 months). Limp was observed at the early stage after operation in 9 patients and disappeared after 1 year, the other patients had normal gait. The VAS score 1.46±0.47, Harris score 88.66±3.48, and the leg length difference (1.15±0.33) cm at last follow-up all showed significant differences when compared with the preoperative values (P<0.05). No prosthesis loosening or subsidence, heterotopic ossification, dislocation, and infection occurred. ConclusionAnatomic femoral component prosthesis for severe DDH in THA can relieve pain, and improve the hip joint function and limb discrepancy. Short-term effectiveness was satisfactory, but the long-term effectiveness should still be observed in future.

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  • EFFECTS OF TOURNIQUET USE ON PERIOPERATIVE OUTCOME IN TOTAL KNEE ARTHROPLASTY

    ObjectiveTo clarify the effects of tourniquet use on pain, early rehabilitation, blood loss, incidence rate of thrombosis in primary total knee arthroplasty (TKA) through a randomized controlled trial. MethodBetween Janurary 2014 and August 2015, 168 patients with knee osteoarthritis undergoing primary TKA were randomly allocated to tourniquet group (n=84) or non-tourniquet group (n=82) . There was no significant difference in gender, age, body mass index, affected side, osteoarthritis grading, disease duration, preoperative range of motion (ROM), visual analogue scale (VAS), Hospital for Special Surgery (HSS) score, and hemoglobin (Hb) between 2 groups (P>0.05) . The operation time, hospitalization time, 90°knee flexion time, straight leg lifting time, and ambulation time were compared between 2 groups. Intraoperative blood loss, Hb decrease, postoperative VAS score, HSS score, ROM, and postoperative complications were recorded and compared. ResultsThere was no significant difference in operation time (t=-1.353, P=0.178) . The patients were followed up 3-20 months (mean, 12 months) in tourniquet group, and 3-22 months (mean, 13 months) in non-tourniquet group. No significant difference was found in Hb decrease (t=-1.855, P=0.066) and transfusion rate (23.81% of tourniquest group vs. 25.61% of non-tourniquest group) (χ2=0.072, P=0.788) between 2 groups. Significant difference was found in the incidence rate of thrombosis between tourniquet and non-tourniquet groups (10.71% vs. 2.44%) (χ2=4.592, P=0.032) , and the intraoperative blood loss of tourniquet group was significantly less than that of non-tourniquet group (t=-16.066, P=0.000) . The 90°knee flexion time, straight leg lifting time, ambulation time, and hospitalization time of tourniquet group were significantly later than those of non-tourniquet group (P<0.05) . The tourniquet group had significantly higher VAS score at 3, 5, 7, and 14 days after operation (P<0.05) and lower HSS score at 28 days after operation (t=-4.192, P=0.000) than non-tourniquet group, but there was no significant difference in the ROM between 2 groups (t=0.676, P=0.500) . ConclusionsThe use of a tourniquet during TKA will increase knee pain and thrombotic events, but can not decrease total blood loss and transfusion rate. A tourniquet use during TKA is unfavorable for early rehabilitation progress.

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