The Endolog system for moderate-to-severe hallux valgus

NewsBot · Jul 3, 2015

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Endolog technique for correction of hallux valgus: a prospective study of 30 patients with 4-year follow-up.
Biz C, Corradin M, Petretta I, Aldegheri R
J Orthop Surg Res. 2015 Jul 2;10(1):102

BACKGROUND:
Hallux valgus (HV) is a complex deformity of the forefoot altering the kinematics of walking. Many different treatment alternatives exist for the correction of hallux valgus, but to date, none has been shown to be more effective than any other. The rate of complications following hallux valgus surgery is variable and has been reported as ranging from 1 to 55 % in the scientific literature. The purpose of this preliminary prospective study was to evaluate the result of the Endolog device, an innovative titanium endomedullary nail, for the treatment of HV.
METHODS:
Thirty patients with mild-to-severe HV were treated with the Endolog device. Clinical evaluation was assessed preoperatively, as well as at 3, 6, 12, 24, and 48 months after surgery with a final follow-up at 4 years, using the American Orthopaedic Foot and Ankle Society (AOFAS) hallux grading system. Computer-assisted measurement of weight-bearing antero-posterior radiographs was taken preoperatively and postoperatively, as well as at 3, 6, 12, 24, and 48 months after surgery. Non-weight-bearing radiographs were taken before the patients were discharged. The radiological parameters measured included the intermetatarsal angle (IMA), the hallux valgus angle (HVA), the distal metatarsal articular angle (DMAA), and the tibial sesamoid position. Statistical analysis was carried out using the paired t test (p < 0.05).
RESULTS:
The mean AOFAS score was 93.98 points at the 48-month follow-up. The postoperative radiographic assessments showed a statistically significant improvement compared with preoperative values. The mean corrections for each angular value at the last follow-up were as follows: IMA 5.95°; HVA 16.81°; DMAA 10.70°; and tibial sesamoid 1.36°.
CONCLUSION:
The Endolog is a safe and effective technique for the correction of HV deformity, to relieve pain and to preserve joint movement.
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NewsBot · Feb 6, 2020

The Endolog technique for moderate to severe Hallux Valgus treatment: clinical and radiographic analysis of 194 patients
FedericoBertoloaAndreaPautassoaClaudioCuocolobDanielaInvernizzibFrancescoAtzorib
Foot and Ankle Surgery; 5 February 2020

Highlights
•Endolog is one of several surgical treatments described for hallux valgus correction with a minimally-invasive approach characterized by little skin incision and soft tissues sparing.
•The purpose of our study was to investigate the clinical and radiographic effectiveness of the Endolog technique on the correction of moderate and severe HV deformity.
•194 feet (144 moderate and 50 severe HV) underwent HV correction respecting study’s criteria and all clinical cases were evaluated through HVA, IMA, PASA and AOFAS scores.
•6 cases of complications were detected during 2-years’ follow-up: 4 cases of HV recurrence and 2 cases of irritative device-related pain.
•This study showed good clinical and radiographic results as well as patient satisfaction and our scores are comparable with other surgical techniques described in literature.
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Background
Endolog is an intra-medullary titanium device used for a minimally-invasive hallux valgus correction. The aim of this study was to evaluate clinical and radiographic outcomes of this device.

Methods
A retrospective study with a prospective data collection was conducted. Patients underwent to Endolog procedures from September 2009 to April 2017 were enrolled. Mild HV deformity (HVA ≤ 19° and IMA ≤ 13°) or associated procedure to Endolog technique were excluded. The radiological (HVA, IMA and PASA) and clinical (AOFAS score) pre and post-operative data were compared through Wilcoxon Signed-Rank test.

Results
194 feet (144 moderate and 50 severe HV) underwent HV correction respecting study’s criteria. AOFAS scores significantly improved from 31.0 ± 12.7 points preoperatively to 88.5 ± 8.0 at 24 months. Even all radiographic measurements significantly improved during 2 years’ follow-up. Only 6 patients experienced complications: 4 cases of HV recurrence and 2 cases of intolerance device-related pain.

Conclusions
Endolog technique proved to be a valid option in the moderate-to-severe hallux valgus treatment, comparable to other surgical techniques described in literature.
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