Restoration of Strength After Thumb Basal Joint Arthroplasty: An Observational Analysis

  • STATUS
    Recruiting
  • participants needed
    165
  • sponsor
    Dartmouth-Hitchcock Medical Center
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Updated on 16 February 2024
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trapeziectomy
pain relief
arthritis
ligament reconstruction
lrti

Summary

The purpose of this study is to evaluate the basis for three widely held fundamental tenets about surgical intervention for thumb basal joint arthritis;

  1. Trapeziectomy with ligament reconstruction and metacarpal stabilization is associated with superior functional outcomes and strength,
  2. Preservation of the arthroplasty space correlates with functional outcomes, pain relief, and restoration of strength after basal joint arthroplasty, and
  3. Mitigation of metacarpophalangeal joint (MCPJ) hyperextension optimizes postoperative strength after basal joint arthroplasty, regardless of surgical technique.

It is hypothesized that thumb basal joint arthroplasty with metacarpal stabilization, by either ligament reconstruction (I) or suture suspension (II), provides greater improvement in grip and pinch strength, and better hand function, than might be achieved following provision of pain relief alone by simple trapeziectomy (III). Preservation of the arthroplasty space will correlate positively, and MCPJ hyperextension will correlate negatively, with improved thumb function and lateral pinch strength.

Primary Aims (within 3 procedure cohorts):

  1. Compare pre-operative pinch and grip strength as well as patient-reported outcomes (PROs) for pain in patients before and after lidocaine injection of the trapeziometacarpal joint, prior to thumb basal joint arthroplasty;
  2. Compare post-operative pinch and grip strength and PROs for pain and function at 3 and 6 months after thumb basal joint arthroplasty with pre-operative values before and after lidocaine injection;
  3. Correlate preservation of dynamic arthroplasty space as measured on a stress radiograph with postoperative improvement in pinch and grip strength, and PROs for pain and function;
  4. Correlate dynamic MCP joint position and laxity with change in strength and patient-reported pain and function to define optimal MCPJ position.

Secondary Aims (between 3 procedure cohorts):

  1. Compare change in pre- and post-operative pinch and grip strength and PROs for pain and function between patients having basal joint arthroplasty with and without specific metacarpal stabilization;
  2. Compare preservation of the dynamic arthroplasty space and improvement in strength and patient-reported pain and function between arthroplasty groups; and
  3. Compare changes in pinch and grip strength and PROs for pain and function with dynamic MCPJ position between arthroplasty groups.
  4. Compare postoperative neuritis and complications between surgical groups.

Description

Study Procedures: Upon obtaining informed consent and within 4 weeks of the planned date of surgery, each site coordinator will collect baseline clinical and demographic information, a visual analogue score (VAS), the Patient-Reported Outcomes Measurement Information System (PROMIS-10) Global Health Survey, the short form Disabilities of the Arm, Shoulder, and Hand (QuickDASH) questionnaire and grip and then pinch measurements from the participant. On the same day, and immediately following collection of baseline clinical data in the clinic, the surgeon will anesthetize the trapeziometacarpal joint. Adequacy of the injection and resulting anesthesia of the joint will be assessed by repeat of the VAS score. Following 15 minutes set time for the local anesthetic, the VAS diagram will again be completed by the patient followed by recording of repeat grip and then pinch measurements. Each patient will then undergo one of three pre-specified procedures; trapeziectomy with ligament reconstruction-tendon interposition (LRTI) arthroplasty with flexor carpi radialis tendon; trapeziectomy with suture suspensionplasty; or arthroscopic or open trapeziectomy with temporary K-wire fixation. Patient follow-up visits are otherwise scheduled according to the surgeon's routine and by clinical indication only. The patient will follow the routine postoperative rehabilitation protocol and hand therapy program of the operating surgeon. Protective splinting and exercise programs are to be utilized per surgeon protocol and preference.Postoperative study assessment will occur at three and six months after operation, The 3 and 6 month evaluation will include PROMIS-10 and QuickDASH surveys, completion of the VAS pain diagram, and recording of grip, key, and pulp to pulp pinch strengths. Additionally, specific notation of paresthesias, dysaesthesias, or sensitivity of the incision will be made by the surgeon or hand therapist at the 3 and 6 month assessments.

Details
Condition Osteoarthritis Thumb
Age 21years - 100years
Treatment Trapeziectomy with ligament reconstruction (I; LRTI), Trapeziectomy with suture suspensionplasty (II; SS), Simple Trapeziectomy (III; ST)
Clinical Study IdentifierNCT04458584
SponsorDartmouth-Hitchcock Medical Center
Last Modified on16 February 2024

Eligibility

 Yes No Not Sure

Inclusion Criteria

Males and females 21 years of age or older
Undergoing elective non-prosthetic, primary basal joint arthroplasty
Patient has necessary mental capacity to participate and comply with study protocol
Patient is willing and able to give informed consent; and
Patient is willing to participate under the care of their chosen surgeon

Exclusion Criteria

Patients with a diagnosis of rheumatoid arthritis, systemic lupus erythematosis, psoriatic arthritis, or other related inflammatory arthritis
Patients undergoing simultaneous bilateral hand procedures of any nature
Women who are pregnant or breastfeeding
Women of reproductive potential unless there is a negative urine pregnancy test on the day of surgery. Women of child bearing potential include those who are premenopausal who have not had a bilateral oophorectomy, hysterectomy or tubal ligation. Post-menopausal is defined as not having had a menstrual period for at least one calendar year
Vulnerable patient populations including prisoners and institutionalized individuals
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