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Chinese Journal of Joint Surgery(Electronic Edition) ›› 2019, Vol. 13 ›› Issue (01): 23-28,85. doi: 10.3877/cma.j.issn.1674-134X.2019.01.005

Special Issue:

• Clinical Research • Previous Articles     Next Articles

Comparative study on direct anterior approach in lateral decubitus position versus posterolateral approach for unilateral total hip arthroplasty

Wenbo Zhao1, Yongjie Ye1,(), Wei Huang2, Yi Yin1, Zhiqiang Wang1, Guanjun Sun1, Xu Peng1   

  1. 1. Department of Joint Surgery, Suining Central Hospital (Affiliated Hospital of Chongqing Medical University), Suining 629000, China
    2. Department of Orthopedics, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400010, China
  • Received:2018-04-14 Online:2019-02-01 Published:2019-02-01
  • Contact: Yongjie Ye
  • About author:
    Corresponding author: Ye Yongjie, Email:

Abstract:

Objective

To compare the clinical efficacy of the direct anterior approach in lateral decubitus position (L-DAA) and posterolateral approach (PLA) for unilateral total hip arthroplasty.

Methods

A retrospective study was conducted on 93 patients who underwent primary unilateral total hip arthroplasty in Department of Joint Surgery, Suining Central Hospital between August 2016 and December 2017. The patients who underwent primary unilateral replacement were included and who underwent bilateral replacement or intolerance of surgery were excluded. There were 45 cases underwent L-DAA and 48 cases underwent PLA. The body mass index(BMI), operation time, intraoperative blood loss, preoperative hemoglobin of the postoperative first day and the seventh day, incision length, hospital stay, preoperative and post operative Harris score, preoperative and postoperative VAS score, radiological evaluation, intraoperative and postoperative complication were recorded and analyzed by t test and chi-square test.

Results

All the patients were followed up for six to 16 months, with an average of (11.7±1.6)months. No deep vein thrombosis, infection or other serious complication occurred. No significant difference was found in BMI, operation time, preoperative Harris score, preoperative Hb, incision length, radiological evaluation, preoperative or postoperative VAS score, nor in hospital stay (P>0.05). Significant differences were detected in intraoperative blood loss, postoperative Hb levels on the first day and the seventh day, more blood loss and lower hemoglobin levels were found in PLA group (t=0.361, 0.484; both P<0.05). In postoperative three months, the Harris score was higher in L-DAA group than PLA group(t=0.572, P<0.05); while in the postoperative six months, there was no significant difference between the two groups(P>0.05). No postoperative complication was found in L-DAA group, while two cases of postoperative hip dislocation were observed in the PLA group, the difference was statistically significant (χ2=0.465, P<0.05). During the operation, two cases of proximal femoral fracture occurred in L-DAA group while non in PLA group (χ2=0.587, P<0.05).

Conclusion

Compared with the posterolateral approach, the L-DAA approach has the advantages of less trauma and faster postoperative recovery, which is a safe surgical approach and can benefit the rapid rehabilitation of patients.

Key words: Arthroplasty, replacement, hip, Patient positioning

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