Trial Outcomes & Findings for Evaluation of Primary Plating in Sternotomy Patients for Osteosynthesis and Pain (NCT NCT00819286)

NCT ID: NCT00819286

Last Updated: 2018-02-13

Results Overview

Quantitative evaluation of sternal bone healing at 5 anatomical locations along the sternum using a 6 point quantitative scale (0= no healing and 5= complete healing)

Recruitment status

COMPLETED

Study phase

NA

Target enrollment

140 participants

Primary outcome timeframe

3 and 6 Months

Results posted on

2018-02-13

Participant Flow

Prospective, randomized trial at 5 US sites and 1 European site. Patient enrollment occurred between November 2008 and May 2010.

Patients were randomized at the time of sternal closure to either rigid plate fixation or wire cerclage. A total of 140 patients were enrolled in this study (70 in each treatment group) and included in an intent to treat analysis.

Participant milestones

Participant milestones
Measure
Wire (Control)
patients will have their sternum closed using stainless steel wires.
Plates
patients will have their sternum closed by rigid fixation using SternaLock plates.
Overall Study
STARTED
70
70
Overall Study
COMPLETED
56
45
Overall Study
NOT COMPLETED
14
25

Reasons for withdrawal

Withdrawal data not reported

Baseline Characteristics

Evaluation of Primary Plating in Sternotomy Patients for Osteosynthesis and Pain

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
Wire (Control)
n=70 Participants
patients will have their sternum closed using stainless steel wires.
Plates
n=70 Participants
patients will have their sternum closed by rigid fixation using SternaLock plates.
Total
n=140 Participants
Total of all reporting groups
Age, Continuous
64.0 years
STANDARD_DEVIATION 8.9 • n=99 Participants
66.3 years
STANDARD_DEVIATION 9.8 • n=107 Participants
65.2 years
STANDARD_DEVIATION 9.4 • n=206 Participants
Sex: Female, Male
Female
18 Participants
n=99 Participants
19 Participants
n=107 Participants
37 Participants
n=206 Participants
Sex: Female, Male
Male
52 Participants
n=99 Participants
51 Participants
n=107 Participants
103 Participants
n=206 Participants

PRIMARY outcome

Timeframe: 3 and 6 Months

Population: Patients were randomized to receive a CT scan at either 3 or 6 months. All patients who received a CT scan were included in the analysis.

Quantitative evaluation of sternal bone healing at 5 anatomical locations along the sternum using a 6 point quantitative scale (0= no healing and 5= complete healing)

Outcome measures

Outcome measures
Measure
Wire (Control)
n=48 Participants
patients will have their sternum closed using stainless steel wires.
Plates
n=46 Participants
patients will have their sternum closed by rigid fixation using SternaLock plates.
CT Scan Evaluation of Sternal Bone Healing
3 Month CT Scan (n=25 wire, n=27 plates)
0.9 units on a scale
Standard Deviation 0.8
1.7 units on a scale
Standard Deviation 1.1
CT Scan Evaluation of Sternal Bone Healing
6 Month CT Scan (n=26 wire, n=23 plates)
2.2 units on a scale
Standard Deviation 1.1
3.2 units on a scale
Standard Deviation 1.6

PRIMARY outcome

Timeframe: 6 months

Population: All patients with VAS pain data at 6 months were included in the analysis of the primary endpoint Activity Based Total Visual Analog Pain Score.

Postoperative VAS pain scores (scale of 0-10 for each; 0= no pain, 10= worst pain imaginable) were evaluated as a function of resting, coughing, sneezing and general movement. The sum of these was used to derive an "Activity Based Total Visual Analog Pain Score", (scale of 0-40; 0= no pain, 40= worst pain imaginable). For this primary endpoint analysis, the total score at 6 months was evaluated.

Outcome measures

Outcome measures
Measure
Wire (Control)
n=56 Participants
patients will have their sternum closed using stainless steel wires.
Plates
n=44 Participants
patients will have their sternum closed by rigid fixation using SternaLock plates.
Activity Based Total Visual Analog Pain Score
7.28 units on a scale
Standard Deviation 4.65
7.20 units on a scale
Standard Deviation 4.04

Adverse Events

Wire (Control)

Serious events: 24 serious events
Other events: 20 other events
Deaths: 0 deaths

Plates

Serious events: 32 serious events
Other events: 24 other events
Deaths: 0 deaths

Serious adverse events

Serious adverse events
Measure
Wire (Control)
n=70 participants at risk
patients will have their sternum closed using stainless steel wires.
Plates
n=70 participants at risk
patients will have their sternum closed by rigid fixation using SternaLock plates.
Blood and lymphatic system disorders
Anemia
1.4%
1/70 • Number of events 1 • 0 to 6 months
Adverse events were classified for severity and causality
1.4%
1/70 • Number of events 1 • 0 to 6 months
Adverse events were classified for severity and causality
Cardiac disorders
Cardiac arrest
2.9%
2/70 • Number of events 2 • 0 to 6 months
Adverse events were classified for severity and causality
4.3%
3/70 • Number of events 4 • 0 to 6 months
Adverse events were classified for severity and causality
Cardiac disorders
Cardiac arrhythmias
2.9%
2/70 • Number of events 2 • 0 to 6 months
Adverse events were classified for severity and causality
2.9%
2/70 • Number of events 2 • 0 to 6 months
Adverse events were classified for severity and causality
Cardiac disorders
Congestive heart failure
0.00%
0/70 • 0 to 6 months
Adverse events were classified for severity and causality
1.4%
1/70 • Number of events 1 • 0 to 6 months
Adverse events were classified for severity and causality
Cardiac disorders
Low cardiac output
2.9%
2/70 • Number of events 2 • 0 to 6 months
Adverse events were classified for severity and causality
0.00%
0/70 • 0 to 6 months
Adverse events were classified for severity and causality
Cardiac disorders
Multiple organ failure due to disecting aorta
1.4%
1/70 • Number of events 1 • 0 to 6 months
Adverse events were classified for severity and causality
0.00%
0/70 • 0 to 6 months
Adverse events were classified for severity and causality
Cardiac disorders
Pacemaker implantation
0.00%
0/70 • 0 to 6 months
Adverse events were classified for severity and causality
1.4%
1/70 • Number of events 1 • 0 to 6 months
Adverse events were classified for severity and causality
Gastrointestinal disorders
GI Bleed
0.00%
0/70 • 0 to 6 months
Adverse events were classified for severity and causality
2.9%
2/70 • Number of events 2 • 0 to 6 months
Adverse events were classified for severity and causality
General disorders
Convulsion
1.4%
1/70 • Number of events 1 • 0 to 6 months
Adverse events were classified for severity and causality
0.00%
0/70 • 0 to 6 months
Adverse events were classified for severity and causality
Infections and infestations
Cytomegalovirus colitis
0.00%
0/70 • 0 to 6 months
Adverse events were classified for severity and causality
1.4%
1/70 • Number of events 1 • 0 to 6 months
Adverse events were classified for severity and causality
Infections and infestations
Sepsis
0.00%
0/70 • 0 to 6 months
Adverse events were classified for severity and causality
1.4%
1/70 • Number of events 1 • 0 to 6 months
Adverse events were classified for severity and causality
General disorders
Multi-organ failure
1.4%
1/70 • Number of events 1 • 0 to 6 months
Adverse events were classified for severity and causality
0.00%
0/70 • 0 to 6 months
Adverse events were classified for severity and causality
Neoplasms benign, malignant and unspecified (incl cysts and polyps)
Suspicion of lung fibrosis; bronchitis ongoing
1.4%
1/70 • Number of events 1 • 0 to 6 months
Adverse events were classified for severity and causality
0.00%
0/70 • 0 to 6 months
Adverse events were classified for severity and causality
Nervous system disorders
Stroke
2.9%
2/70 • Number of events 3 • 0 to 6 months
Adverse events were classified for severity and causality
1.4%
1/70 • Number of events 1 • 0 to 6 months
Adverse events were classified for severity and causality
Renal and urinary disorders
Acute renal failure
2.9%
2/70 • Number of events 2 • 0 to 6 months
Adverse events were classified for severity and causality
2.9%
2/70 • Number of events 2 • 0 to 6 months
Adverse events were classified for severity and causality
Respiratory, thoracic and mediastinal disorders
Pleural effusion
1.4%
1/70 • Number of events 1 • 0 to 6 months
Adverse events were classified for severity and causality
0.00%
0/70 • 0 to 6 months
Adverse events were classified for severity and causality
Respiratory, thoracic and mediastinal disorders
Pneumonia
1.4%
1/70 • Number of events 1 • 0 to 6 months
Adverse events were classified for severity and causality
1.4%
1/70 • Number of events 1 • 0 to 6 months
Adverse events were classified for severity and causality
Respiratory, thoracic and mediastinal disorders
Respiratory failure
0.00%
0/70 • 0 to 6 months
Adverse events were classified for severity and causality
4.3%
3/70 • Number of events 4 • 0 to 6 months
Adverse events were classified for severity and causality
Respiratory, thoracic and mediastinal disorders
Respiratory insufficiency
4.3%
3/70 • Number of events 5 • 0 to 6 months
Adverse events were classified for severity and causality
2.9%
2/70 • Number of events 2 • 0 to 6 months
Adverse events were classified for severity and causality
Surgical and medical procedures
Resternotomy
10.0%
7/70 • Number of events 7 • 0 to 6 months
Adverse events were classified for severity and causality
15.7%
11/70 • Number of events 11 • 0 to 6 months
Adverse events were classified for severity and causality

Other adverse events

Other adverse events
Measure
Wire (Control)
n=70 participants at risk
patients will have their sternum closed using stainless steel wires.
Plates
n=70 participants at risk
patients will have their sternum closed by rigid fixation using SternaLock plates.
Cardiac disorders
Cardiac arrhythmias
12.9%
9/70 • Number of events 9 • 0 to 6 months
Adverse events were classified for severity and causality
17.1%
12/70 • Number of events 12 • 0 to 6 months
Adverse events were classified for severity and causality
Renal and urinary disorders
Acute renal failure
1.4%
1/70 • Number of events 1 • 0 to 6 months
Adverse events were classified for severity and causality
5.7%
4/70 • Number of events 4 • 0 to 6 months
Adverse events were classified for severity and causality
Respiratory, thoracic and mediastinal disorders
Pleural effusion
14.3%
10/70 • Number of events 10 • 0 to 6 months
Adverse events were classified for severity and causality
11.4%
8/70 • Number of events 8 • 0 to 6 months
Adverse events were classified for severity and causality

Additional Information

Brian Hatcher

Biomet Microfixation

Phone: 904-741-4400

Results disclosure agreements

  • Principal investigator is a sponsor employee Principal investigator may publish his/her own results from the study provided such publication does not include or disclose any confidential information. Principal investigator may also participate in joint publications. All proposed publications shall be submitted to Biomet for review. Biomet will have 30 days to review the proposed publication.
  • Publication restrictions are in place

Restriction type: OTHER