Proximal Interphalangeal Joint Arthroplasty Using a Graft From the Capitate

Study Overview
=================
Brief Summary
-----------------
The capitate had a widened distal base. The distal articulation can be used for proximal interphalangeal (PIP) articula reconstruction.

Detailed Description
-----------------
Previous anatomical studies have shown that the capitate had a widened distal base. The distal articulation was mainly with the base of the third metacarpal and partially with the base of the second metacarpal. The articulation was slightly flattened with a convex and concave dorsal articular surface. The contour stimulates our imagination and creativity to use a portion of the articular surface for PIP arthroplasty.

Official Title
-----------------
The Second Hospital of Qinhuangdao, Qinhuangdao, Hebei, 066600, China

Conditions
-----------------
Recurrent Dislocation of Hand

Intervention / Treatment
-----------------
* Procedure: Capitate bone grafting


Participation Criteria
=================
Eligibility Criteria
-----------------
Inclusion Criteria: an articular defect at the proximal aspect of the PIP joint; the defect larger than 5 mm × 5 mm in size based on intraoperative findings. Exclusion Criteria: large defects involved double joint surfaces; the size of the defect less than 5 mm × 5 mm; mult-digital articular defects that all required osteoarticular grafting; associate with infection or other diseases that restrict to use the technique.

Ages Eligible for Study
-----------------
Minimum Age: 18 Years
Maximum Age: 50 Years

Sexes Eligible for Study
-----------------
All

Accepts Healthy Volunteers
-----------------
No

Study Plan
=================
How is the study designed?
-----------------

Design Details

Primary Purpose: Treatment
Intervention Model: Single Group Assignment
Masking: Single


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Experimental: Capitate bone grafting<br>18 patients with PIP joint defects were included in the study. There were 13 male and 5 female patients with a mean age of 31 years (range, 18-47 years). The injury occurred in the right hand in 11 patients and on the left hand in 7. The injured PIP joints were in the index finger (n=7), long finger (n=9), and ring finger (n=2). | Procedure: Capitate bone grafting<br>* Capitate bone graft transfer for PIP joint reconstruction<br>|

What is the study measuring?
-----------------
Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| range of motion | Active range of motion of the hand were measured by a goniometer. | 37 to 46 months postoperatively | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| grip strength | The grip strength of the thumb to the injured finger was measured using dynamometers | 37 to 46 months postoperatively | 
| pinch strength | The pinch strength of the thumb to the injured finger was measured using dynamometers | 37 to 46 months postoperatively | 

 Terms related to the study
=================
Keywords Provided by Centre Hospitalier Valida
-----------------
arthroplasty, graft, capitate, artery