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This study follows early wound healing using knot hiding titanium implants in coracoclavicular ligament reconstruction. A further aim is to compare two techniques where the semitendinosus tendon graft either runs through the coracoid drill hole or goes around the coracoid.
A modified arthroscopic technique for coracoclavicular ligament reconstruction was used based on a previous technique where the supportive device and the semi tendon graft share the clavicular and coracoid drill holes. A notable problem with the previous technique was large protruding suture knots on the washer and clavicle, which could predispose to wound infection. In this new modified technique, new implants were introduced. The new implant hides the suture knot and less foreign material is needed.
The purpose of this study is to follow the patients operated using the new implants with special attention to early clavicular wound healing. A further aim is to compare a technique where the semitendinosus graft runs through clavicular and coracoid drill holes versus a technique where the graft runs under the coracoid process.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| Through the coracoid | Active Comparator | The semitendinosus tendon graft goes through the 4.5 mm coracoid drill hole. |
|
| Around the coracoid | Experimental | The semitendinosus tendon graft goes around the coracoid. |
|
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Coracoclavicular ligament reconstruction | Procedure | Arthroscopically conducted ligament reconstruction for the treatment of an AC dislocation |
|
| Measure | Description | Time Frame |
|---|---|---|
| Total number of wound infections in the clavicular describing the safety of the used implant | Clinical sign questionnaire, scale 0-1 (no-yes) | two months |
| Measure | Description | Time Frame |
|---|---|---|
| Constant score, scale 0-100, 100 denoting excellent | General shoulder test; describes the general state of the shoulder | Score is taken postoperatively and after two years follow-up |
| Simple shoulder test, scale 0-12, 12 denoting excellent |
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Inclusion Criteria:
Clinical diagnosis of chronic acromioclavicular luxation
Exclusion Criteria:
Severe new trauma after the treatment
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| Name | Affiliation | Role |
|---|---|---|
| Juha O Ranne, M.D., Ph.D. | University of Turku, Finland | Principal Investigator |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Paavo Nurmi Centre, University of Turku | Turku | 20520 | Finland |
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Prospective randomized follow-up study. Two groups.
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Either the two operation methods is chosen by opening a sealed envelope.
General shoulder test; describes the general state of the shoulder
| Score is taken postoperatively and after two years follow-up |
| Nottingham clavicle score, scale 20-100, 100 denoting excellent | AC joint specific test; describes the state of the AC joint and clavicle | Score is taken postoperatively and after two years follow-up |
| Clavicular tunnel diameter | Describes possible adverse expansion of the tunnel; millimeters | The measure is taken postoperatively and after two years follow-up |
| Coracoclavicular distance | Describes possible adverse increase of the coracoclavicular distance; millimeters | The measure is taken postoperatively and after two years follow-up |