Related Experiment Video
Updated: Aug 11, 2025
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
Puncture Capsulotomy Technique for Hip Arthroscopy: Midterm Functional Outcomes
Christopher T Eberlin1, Michael P Kucharik1, Paul F Abraham2
1Sports Medicine Center, Department of Orthopaedic Surgery, Massachusetts General Hospital, Mass General Brigham, Boston, Massachusetts, USA.
Insights
Puncture capsulotomy in hip arthroscopy significantly improves patient outcomes for labral tears and femoroacetabular impingement. This technique preserves capsular integrity, leading to better functional results and minimal complications at two years.
Area of Science:
- Orthopedic Surgery
- Sports Medicine
- Arthroscopy
Background:
- Traditional hip arthroscopy techniques like interportal and T-capsulotomy can compromise capsular stability.
- Puncture capsulotomy offers an alternative by preserving the iliofemoral capsular ligament's integrity.
Purpose of the Study:
- To evaluate the minimum 2-year functional outcomes of arthroscopic treatment for acetabular labral tears and femoroacetabular impingement using puncture capsulotomy.
- To assess the efficacy and safety of the puncture capsulotomy technique in hip arthroscopy.
Main Methods:
- Retrospective review of prospectively collected data from patients undergoing hip arthroscopy with puncture capsulotomy.
- Inclusion criteria: age ≥18 years, minimum 2-year follow-up with patient-reported outcome measures (PROMs).
- Data collected included International Hip Outcome Tool (iHOT-33), Hip Outcome Score (HOS-ADL, HOS-SS), modified Harris Hip Score (mHHS), and visual analog scale (VAS) pain scores.
Main Results:
- Significant improvements observed in all PROMs (iHOT-33, HOS-ADL, mHHS, HOS-SS) and VAS pain scores (P < .001).
- High percentages of hips achieved clinically meaningful outcomes at 2-year follow-up (e.g., 81.0% for iHOT-33 minimally important difference).
- No incidences of infection, avascular necrosis, dislocation, or femoral neck fracture were reported.
Conclusions:
- Puncture capsulotomy is a safe and effective technique for treating acetabular labral tears and femoroacetabular impingement.
- The technique leads to significant functional improvements and high rates of patient-reported meaningful outcomes.
- Preservation of capsular integrity via puncture capsulotomy contributes to favorable long-term results with a low complication profile.
Background:
The most common surgical approaches in hip arthroscopy are interportal and T-capsulotomy. However, these methods may introduce capsular instability. Puncture capsulotomy preserves capsuloligamentous integrity by avoiding iatrogenic transection of the iliofemoral capsular ligament.
Purpose:
To present minimum 2-year functional outcomes for patients who underwent arthroscopic treatment for acetabular labral tears and concomitant femoroacetabular impingement using the puncture capsulotomy technique.
Study Design:
Case series; Level of evidence, 4.
Methods:
The authors conducted a retrospective review of prospectively collected data on patients who underwent arthroscopic acetabular labral tear treatment between December 2013 and May 2019. Included were patients aged ≥18 years who underwent hip arthroscopy by a single surgeon and completed a minimum of 2 years of patient-reported outcome measure (PROM) surveys. Intraoperatively, patients underwent hip arthroscopy via puncture capsulotomy to treat labral tears and any concomitant femoroacetabular impingement. Clinical outcome data consisted of PROMs.
Results:
A total of 163 hips were included; the mean patient follow-up was 30.4 months (range, 24-60 months; 95% CI, 28.5-32.3 months). Patients had a mean age of 37.9 years (range, 36.1-39.6 years), with a mean body mass index of 25.9 (range, 25.2-26.5). There were significant improvements in mean [95% CI] baseline to final follow-up scores for the 33-Item International Hip Outcome Tool (iHOT-33) (39.6 [36.8-42.4] vs 76.1 [72.7-79.6]), Hip Outcome Score-Activities of Daily Living (70.0 [67.0-73.0] vs 89.3 [87.3-91.3]), modified Harris Hip Score (60.1 [57.9-62.4] vs 84.9 [82.5-87.2]), and Hip Outcome Score-Sports Specific Subscale (41.8 [37.9-45.6] vs 75.7 [71.7-79.7]) (P < .001 for all). Additionally, the mean [95% CI] visual analog scale pain scores were noted to significantly improve throughout the duration of the postoperative period (from 6.3 [5.9-6.7] to 2.2 [1.8-2.6]; P < .001). There were no incidences of infection, avascular necrosis of the femoral head, dislocation/instability, or femoral neck fracture. At the 2-year follow-up, 81.0%, 62.0%, and 58.9% of hips achieved previously published clinically meaningful iHOT-33 thresholds for minimally clinically important difference, Patient Acceptable Symptom Score, and substantial clinical benefit, respectively.
Conclusion:
Puncture capsulotomy demonstrated significantly improved functional and clinically meaningful outcomes at a minimum 2-year follow-up, along with a minimal complication rate.
