Outcomes of the Modified-Brostrom Procedure Using Suture Anchor for Chronic Lateral Ankle Instability

Outcomes of the Modified-Brostrom Procedure Using Suture Anchor for Chronic Lateral Ankle Instability - A Prospective, Randomized Comparison With the Bone Tunnel Technique

This prospective, randomized study was conducted to compare the clinical outcomes of the modified Brostrom procedure using a suture anchor and bone tunnel for chronic lateral ankle instability.

Study Overview

• Status: Completed
• Conditions: Chronic Ankle Instability

Detailed Description

With With the increased number of participants in sports and leisure time activities, the incidence of ankle ligament injuries has been correspondingly increased. Various surgical methods have been reported for chronic ankle instability. Of these methods, the modified Brostrom procedure is currently used most frequently, and its excellent treatment outcomes have been reported. If there are any methods for obtaining a strong ligament fixation force which are both technically simple and safe, such methods would shorten the operative time and be helpful for surgeons with little experience in managing chronic ankle instability to obtain excellent treatment outcomes. In recent years, a procedure using a suture anchor, which is used for various types of ligament or tendon reconstructions, has been frequently performed. To date, however, few studies have reported clinical outcomes of suture anchor techniques and comparisons of clinical results between suture anchor techniques and other procedures. Given the above background, we prospectively compared the clinical outcomes between the bone tunnel and suture anchor techniques in the modified Brostrom procedure for chronic lateral ankle instability.

• Study Type: Observational
• Enrollment (Actual): 40

Contacts and Locations

Study Locations

• Korea, Republic of
  • ChungBuk
    • Cheongju, ChungBuk, Korea, Republic of, 360-711
      • Chungbuk National University Hospital

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: 15 years to 44 years (Child, Adult)
• Accepts Healthy Volunteers: No
• Genders Eligible for Study: All

• Sampling Method: Probability Sample

Study Population

Of patients who underwent the modified Brostrom procedure under the diagnosis of chronic lateral ankle instability, 40 patients (40 ankles) who could be followed during a minimum period of 2 years were enrolled in the current study. The current study included patients who complained of unilateral ankle joint instability.

Description

Inclusion Criteria:

• Patients who complained of subjective instability of the ankle joint in whom repeated sprain injuries for > 6 months and pain were confirmed
• Patients with marked ankle instability confirmed by the anterior drawer test as compared with the contralateral ankle joint and tenderness involving the lateral ligament of the ankle joint was confirmed on physical examination
• Patients with an talar tilt angle exceeding 10o or a discrepancy of > 5o as compared with the non-affected side on stress radiography
• Patients with an anterior talar translation exceeding 10 mm or a discrepancy > 3 mm as compared with the non-affected side.

Exclusion Criteria:

• Patients who concurrently had an ankle fracture or marked tendon damage were excluded from the current analysis.

Study Plan

How is the study designed?

Number of groups / cohorts

1

Cohorts and Interventions

Group / Cohort
Suture anchor, Bone tunnel; Suture anchor group: patients who underwent the modified Brostrom procedure using suture anchor technique Bone tunnel group: patients who underwent the modified Brostrom procedure using bone tunnel technique

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Time Frame
The clinical evaluation consisted of a VAS for pain, the Karlsson scale, and the Sefton grading system.	during a minimum period of 2 years

Secondary Outcome Measures

Outcome Measure	Time Frame
Talar tilt and anterior talar translation were measured on anterior and varus stress radiographs.	during a minimum period of 2 years

Collaborators and Investigators

• Sponsor: Chonbuk National University Hospital
• Investigators: Study Chair: Byung-Ki Cho, M.D., Chungbuk National University Hospital

Study record dates

Study Major Dates

• Study Start: February 1, 2007
• Primary Completion (Actual): December 1, 2007
• Study Completion (Actual): December 1, 2009

Study Registration Dates

• First Submitted: January 25, 2010
• First Submitted That Met QC Criteria: January 25, 2010
• First Posted (Estimate): January 26, 2010

Study Record Updates

• Last Update Posted (Estimate): January 26, 2010
• Last Update Submitted That Met QC Criteria: January 25, 2010
• Last Verified: March 1, 2007

More Information

Terms related to this study

• Keywords: Ankle; Suture anchor; Chronic lateral instability; Modified Brostrom procedure; Bone tunnel
• Additional Relevant MeSH Terms: Joint Diseases; Musculoskeletal Diseases; Joint Instability
• Other Study ID Numbers: titanick25; ClinicalTrials (Registry Identifier: ClinicalTrials)