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Updated: Jun 19, 2026

The Transition to an Anterior-Based Muscle Sparing Approach Improves Early Postoperative Function but is Associated with a Learning Curve
Published on: September 7, 2022
Minimally-invasive total hip arthroplasty will improve early postoperative outcomes: a prospective, randomized,
1Institute of Orthopaedics, Xijing Hospital, The Fourth Military Medical University, 15# West Changle Road, 710032 Xi'an, Shaanxi, People's Republic of China.
Background:
The rehabilitation of patients for total hip arthroplasty is unsatisfactory, especially the prolonged rehabilitation.
Aims:
To explore indications and key points of anterolateral minimally-invasive total hip arthroplasty.
Methods:
110 patients admitted for unilateral total hip arthroplasty were randomly selected for surgery with either anterolateral minimally-invasive incision or standard posterolateral incision. Demographic data, perioperative index and postoperative function index were recorded and statistically analyzed.
Results:
No significant difference was detected in operation time, abduction angle, anteversion angle, stem alignment and stem fixation. The incision length, blood loss, perioperative transfusion and 100-mm VAS score at the first 24 h in minimally-invasive group were significantly lower. The Harris hip score and Barthel index were significantly higher in minimally-invasive group at 3 months' follow-up, but not significantly different 3 years after operation.
Conclusions:
There are fewer traumas, fewer blood losses and more rapid recovery in this approach.