Safety Study of Surgical Technique to Treat Acute Dorsal Trans-Scaphoid Perilunate Dislocations

Study Overview
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Brief Summary
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The purpose of this study is to determine a surgical technique is effective in the treatment of acute dorsal trans-scaphoid perilunate dislocations.

Detailed Description
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Open reduction and internal fixation is an effective method of treating acute trans-scaphoid perilunate dislocations. We study a new surgical technique that allows for early wrist excises postoperatively. We compare this technique to Inoue et al. 's techniques affect the objective and subjective outcomes. We also compared the long-term outcomes of these two procedures performed in similar patient groups.Although both groups had satisfactory results with regard to their pain relief, sufficient grip strength and union of scaphoid fracture, the technique using in group I was more easily and quickly to perform. It allows early postoperative excises and results better functional wrist range of motion.

Official Title
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Surgical Techniques for Acute Dorsal Trans-Scaphoid Perilunate Dislocations

Conditions
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Operative Time, Grip Strength, Pain, Functional Status

Intervention / Treatment
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* Procedure: Open reduction and internal fixation


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: Clinical treatment of acute trans-scaphoid perilunate dislocations Must have open reduction and internal fixation Exclusion Criteria: Patients whose age under 18 years Associated with severe crush, avulsion, or opened injury

Ages Eligible for Study
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Minimum Age: 18 Years
Maximum Age: 60 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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No

Study Plan
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How is the study designed?
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Design Details

Primary Purpose: Treatment
Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Double


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Experimental: 1<br>Group I (treatment with our technique) Eighteen patients (18 wrists) were available for long-term follow-up at an average of 47.8 months after surgery. There were 11 men and seven women. Their mean age at the time of surgery was 35.4 years (range, 22 to 56 years). The dominant hand was involved in 12 patients and the nondominant hand, in six. | Procedure: Open reduction and internal fixation<br>* Inoue et al.'s technique is most commonly used which required placing three K-wires to immobilize both midcarpal joint and radiocarpal joint. This technique is effective, however, it has some problems. In the study, we improve the surgical technique.<br>* Other names: Techniques for Perilunate Dislocations;|
| Experimental: 2<br>Group II (treatment with Inoue et al.'s technique) Fifteen patients (15 wrists) were evaluated at an average of 51 months. Nine patients were men and 6 were women. The mean age of the group at the time of surgery was 37.5 years (range, 24 to 58 years). The dominant hand was involved in 10 and nondominant hand, in seven. | Procedure: Open reduction and internal fixation<br>* Inoue et al.'s technique is most commonly used which required placing three K-wires to immobilize both midcarpal joint and radiocarpal joint. This technique is effective, however, it has some problems. In the study, we improve the surgical technique.<br>* Other names: Techniques for Perilunate Dislocations;|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| In group I was more easily and quickly to perform. It allows early postoperative excises and results better functional wrist range of motion. |  | 1992-2004 | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Both groups had satisfactory results with regard to their pain relief, sufficient grip strength and union of scaphoid fracture. |  | 1992-2004 | 

 Terms related to the study
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Keywords Provided by Centre Hospitalier Valida
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Acute trans-scaphoid perilunate dislocations, Open reduction and internal fixation, Kirschner-wire, Range of motion