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Published on: April 17, 2020
All-Inside Endoscopic Classic Bröstrom-Gould Technique: Medium-term Results
Choon Chiet Hong1,2, Christel Charpail3, Charles Kon Kam King4
1Department of Orthopaedic Surgery, National University Hospital, Singapore, Singapore.
Background:
Short-term results after arthroscopic/endoscopic lateral ligament repair for chronic lateral ankle instability have been satisfactory, although medium- to longer-term results are lacking.
Purpose/Hypothesis:
The purpose of this study was to report the medium-term results of an all-inside endoscopic classic Bröstrom-Gould procedure where both the both lateral ligaments and the inferior extensor retinaculum can be approached directly, interchanging between arthroscopy for intracapsular structures and endoscopy for extracapsular structures. It was hypothesized that the all-inside endoscopic classic Bröstrom-Gould procedure would produce sustainable good outcomes at a medium term of 5 years.
Study Design:
Case series; Level of evidence, 4.
Methods:
A prospective database for 43 patients who underwent an all-inside endoscopic classic Bröstrom-Gould repair of the anterior talofibular ligament and calcaneofibular ligament with inferior extensor retinaculum augmentation was reviewed. Patient details, American Orthopaedic Foot & Ankle Society score, Karlsson score, ankle activity score (AAS), and patient satisfaction were collected and analyzed.
Results:
The study cohort of 43 patients with a mean age of 29.4 years (SD, 11.9 years) were reviewed at a mean follow-up of 63.1 months (SD, 8.5 months). The American Orthopaedic Foot & Ankle Society scores showed significant improvement from a mean of 69.6 (SD, 13.9) to 93.7 (SD, 10.7), while the Karlsson score improved from 59.7 (SD, 14.5) to 91.5 (SD, 14.5) at the final follow-up. The AAS showed that 32 (74.4%) patients maintained or had improvement in the AAS, from a mean of 5.38 (SD, 2.8) to 5.41 (SD, 2.8), with a mean satisfaction rate of 9.1 (SD, 1.3). Although the remaining 11 patients had a reduced AAS, at a mean of 4.6 (SD, 2.6), they reported a mean satisfaction rate of 7.4 (SD, 2.9). There were no surgical complications or reoperations reported in this cohort, although there were 3 patients with recurrent instability at their last follow-up, resulting in a failure rate of 7%.
Conclusion:
The current study is the first to report the medium-term outcomes of an all-inside endoscopic classic Bröstrom-Gould procedure. Overall, 93% of the patients had good functional outcomes, but approximately 25% of patients had decreased ankle activity levels at a mean of 5 years postoperatively, albeit with good satisfaction rates.
