Gluteus Maximus Transfer Following THA Does Not Improve Abductor Strength

Gluteus Maximus Transfer Following THA Does Not Improve Abductor Strength - a Case-control Gait Analysis Study of 15 Patients With Gluteus Medius Disruption

Gluteus maximus transfer following THA does not improve abductor strength - a case-control gait analysis study of 15 patients with gluteus medius disruption

The investigators have compared 15 gluteus maximus transferred patients with the use of a gait analysis system based on reflective markers and force plates to objectively evaluate the gait performance pre- and postoperatively.

Study Overview

• Status: Completed
• Conditions: Hip Arthropathy
• Intervention / Treatment: Procedure: Gluteus maximus transfer

Detailed Description

The gluteus maximus flap transfer (GMT) is a surgical technique to improve gait kinematics and kinetics as well as reduce pain and ameliorate functional outcome in patients with hip abductor deficiency of the gluteus medius following total hip arthroplasty (THA). The investigators used a gait analysis system based on reflective markers and force plates to objectively evaluate gait performance pre- and postoperatively.

Methods Gait analysis was performed in 15 patients who underwent GMT and were examined with an optical tracking system before and at a minimum of 13 months after the operation. Mean age was 69 years (SD=11), all were females. Median follow-up time was 24 (13-60) months. The primary outcome was hip abduction moment (Nm/kg) during gait. The control group consisted of 66 subjects without any gait pathology.

• Study Type: Interventional
• Enrollment (Actual): 15
• Phase: Not Applicable

Contacts and Locations

Study Locations

• Sweden
  • Gothenburg, Sweden, SE 41310
    • Roland Zügner

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: Child; Adult; Older Adult
• Accepts Healthy Volunteers: Yes
• Genders Eligible for Study: Female

Description

Inclusion Criteria:

• Patients with hip abductor deficiency of the gluteus medius following total hip arthroplasty (THA)

Exclusion Criteria:

• THA prior to the muscle transfer

Study Plan

How is the study designed?

Design Details

• Primary Purpose: Treatment
• Allocation: Non-Randomized
• Interventional Model: Crossover Assignment
• Masking: Single

Number of Arms

2

Arms and Interventions

Participant Group / Arm	Intervention / Treatment
Experimental: Gait performance preop vs postop; Pre and postop	Procedure: Gluteus maximus transfer; Gait analysis study of 15 patients with gluteus medius disruption
Experimental: Gait performance postop vs controls; Postop vs controls	Procedure: Gluteus maximus transfer; Gait analysis study of 15 patients with gluteus medius disruption

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Abductor strength measurement with use of an optical tracking system after Gluteus maximus transfer - a case-control gait analysis study of 15 patients pre- and postoperative with gluteus medius disruption	Gait analysis examination/measure will be performed preoperative with an optical tracking system in a gait laboratory using reflective markers and integrated force plates in order to record kinetics (Nm/kg) of abductor muscles moment in the frontal plane.	Preop
Abductor strength measurement with use of an optical tracking system after Gluteus maximus transfer- a case-control gait analysis study of 15 patients pre- and postoperative with gluteus medius disruption	Gait analysis examination/measure will be performed 2 year postoperative with an optical tracking system in a gait laboratory using reflective markers and integrated force plates in order to record kinetics (Nm/kg) of abductor muscles moment in the frontal plane.	Postop 2 year

Collaborators and Investigators

• Sponsor: Göteborg University
• Investigators: Principal Investigator: Roland Zügner, Göteborg University

Publications and helpful links

General Publications

• Whiteside LA. Surgical technique: Transfer of the anterior portion of the gluteus maximus muscle for abductor deficiency of the hip. Clin Orthop Relat Res. 2012 Feb;470(2):503-10. doi: 10.1007/s11999-011-1975-y.

Study record dates

Study Major Dates

• Study Start (Actual): February 1, 2012
• Primary Completion (Actual): September 17, 2018
• Study Completion (Actual): September 17, 2018

Study Registration Dates

• First Submitted: February 24, 2021
• First Submitted That Met QC Criteria: March 12, 2021
• First Posted (Actual): March 15, 2021

Study Record Updates

• Last Update Posted (Actual): July 7, 2021
• Last Update Submitted That Met QC Criteria: July 2, 2021
• Last Verified: July 1, 2021

More Information

Terms related to this study

• Additional Relevant MeSH Terms: Musculoskeletal Diseases; Joint Diseases
• Other Study ID Numbers: Gluteus maximus transfer

Plan for Individual participant data (IPD)

• Plan to Share Individual Participant Data (IPD)?: YES
• IPD Plan Description: After publication, all available data will be available by appointment and within a reasonable time.
• IPD Sharing Time Frame: After publication and 2 years after publication
• IPD Sharing Supporting Information Type: STUDY_PROTOCOL; SAP; ICF; CSR

Drug and device information, study documents

• Studies a U.S. FDA-regulated drug product: No
• Studies a U.S. FDA-regulated device product: No