# Garage Door Injury Analysis in America

## injuries related to garage doors in america

Garage door injuries in America primarily involve permanent brain injury or death in children from automatic door opener entrapment failures and severe eye injuries in adults from high-velocity spring dislodgements during amateur repairs.

## Abstract

This systematic review identified two distinct mechanisms of severe garage door-related injuries in the United States, affecting different populations through separate hazard pathways. Automatic garage door openers caused at least 85 cases of permanent brain injury or death in children from 1974 to 1996, with injuries occurring when children accessed activation devices and were entrapped under closing doors that failed to reverse. Testing of 50 door openers revealed that 40% failed to reverse when encountering child-sized objects despite reversing for rigid objects, indicating a fundamental sensor design flaw. Separately, garage door spring repairs by inexperienced individuals caused 7 open globe injuries from 2008 to 2023, with springs dislodging at high velocity during amateur repair attempts and resulting in visual acuities ranging from 20/125 to complete blindness. The evidence demonstrates that garage door injuries in America comprise at least two distinct public health problems requiring different prevention approaches: product safety improvements and regulatory standards for automatic door sensors to protect children, and recognition that spring repairs require professional expertise to prevent projectile injuries in adults.

## Methods

We analyzed 2 sources from an initial pool of 50, using 8 screening criteria. Each paper was reviewed for 8 key aspects that mattered most to the research question.

- **Papers screened using:** Garage Door Injury Focus, Geographic Scope, Human Participants, Study Design, Data Source, Specific Injury Data, Adequate Case Number, Injury Outcomes Focus
- n = 50 Papers screened out
- n = 48
- n = 2 Papers included for extraction

## Paper search

We performed a semantic search across over 138 million academic papers from the Elicit search engine, which includes all of [Semantic Scholar](https://www.semanticscholar.org/) and [OpenAlex](https://openalex.org/).

We ran this query: "injuries related to garage doors in america"

We retrieved 50 papers most relevant to the query for screening.

## Screening

We screened in sources based on their abstracts that met these criteria:

- **Garage Door Injury Focus:** Does this study report injuries directly caused by garage doors or garage door mechanisms (not just general garage-related injuries)?
- **Geographic Scope:** Was this study conducted in the United States, including its territories?
- **Human Participants:** Does this study involve human participants of any age (not animals or laboratory studies without human injury data)?
- **Study Design:** Is this study an observational study (case series, case-control, cohort, cross-sectional), systematic review, or meta-analysis that includes original injury data (not opinion pieces, editorials, or commentary without original data)?
- **Data Source:** Does this study report data from healthcare settings (emergency departments, trauma centers, hospitals) or injury surveillance systems?
- **Specific Injury Data:** Does this study provide specific garage door injury data rather than only incidental mentions or inclusion within broad injury categories without specific garage door details?
- **Adequate Case Number:** If this is a case report or case series, does it include 3 or more cases (or is it a different study design)?
- **Injury Outcomes Focus:** Does this study report actual human injury outcomes rather than focusing solely on prevention strategies or property damage without injury data?

We considered all screening questions together and made a holistic judgement about whether to screen in each paper.

## Data extraction

We asked a large language model to extract each data column below from each paper. We gave the model the extraction instructions shown below for each column.

**Study Characteristics:**  
Extract key study details including:  
- Study design (case series, surveillance data, retrospective review, etc.)  
- Geographic location and setting  
- Time period covered  
- Data source (hospital records, national database, emergency department, etc.)  
- Total number of garage door injury cases

**Victim Demographics:**  
Extract all available demographic information about injured persons including:  
- Age (specific ages, age ranges, or age groups)  
- Sex/gender distribution  
- Any other demographic characteristics mentioned (occupation, experience level, etc.)  
- Note if demographic patterns or risk factors are identified

**Garage Door Type:**  
Extract details about the garage door system involved including:  
- Type of garage door (automatic vs manual, overhead vs other)  
- Specific component involved in injury (springs, cables, panels, opener mechanism, etc.)  
- Door weight, size, or mechanical specifications if mentioned  
- Age or condition of the garage door system

**Injury Mechanism:**  
Extract detailed information about how the injury occurred including:  
- Activity being performed when injured (repair, installation, routine use, etc.)  
- Specific mechanism of injury (struck by, crushed by, entrapment, etc.)  
- Sequence of events leading to injury  
- Whether safety devices failed or were bypassed  
- Environmental factors (supervision, safety equipment use, etc.)

**Injury Details:**  
Extract comprehensive injury information including:  
- Body part(s) affected  
- Type of injury (fracture, laceration, crushing, eye injury, etc.)  
- Severity classification or description  
- Whether injury was fatal  
- Any injury severity scores if provided

**Treatment Outcomes:**  
Extract information about medical treatment and outcomes including:  
- Type of treatment required (surgery, emergency care, etc.)  
- Hospital length of stay  
- Long-term outcomes or disabilities  
- Final visual acuity or functional outcomes where relevant  
- Return to normal function or permanent impairment

**Risk Factors:**  
Extract any identified risk factors or contributing circumstances including:  
- Lack of experience or training  
- Improper use or maintenance  
- Design flaws or safety device failures  
- Age-related vulnerabilities  
- Any statistical associations with increased injury risk

**Prevention Recommendations:**  
Extract any prevention strategies, safety recommendations, or regulatory suggestions including:  
- Specific safety measures recommended  
- Design improvements suggested  
- User education recommendations  
- Regulatory or standards changes proposed  
- Testing methods for homeowners

## Results

### Characteristics of Included Studies

The two included studies examined distinct mechanisms of garage door-related injuries in the United States. Both studies used case series methodology but differed substantially in their focus, time periods, and populations studied.

| Study | Full text retrieved? | Study design | Geographic location | Time period | Data source | Number of cases |
|-------|----------------------|--------------|---------------------|-------------|-------------|----------------|
| R. Kriel et al., 1996 | No | Case series and surveillance data | United States | 1974 to 1996 | US Product Safety Commission, Underwriters Laboratories, evaluation of 50 automatic door openers | At least 85 children |
| Priya P Shah et al., 2023 | No | Case series | Massachusetts Eye and Ear, Massachusetts, USA | 2008 to 2023 | Hospital records | 7 patients |

The Kriel et al. study encompassed over two decades of surveillance data on pediatric injuries from automatic garage door openers, representing a national scope with data from regulatory agencies. In contrast, the Shah et al. study focused on a specific injury mechanism at a single tertiary care center over a 15-year period. The substantial difference in case numbers reflects both the different time spans and the specificity of injury mechanisms studied.

### Victim Demographics and Circumstances

The two studies identified entirely different victim populations based on the injury mechanism involved.

| Study | Age group | Experience level | Activity during injury |
|-------|-----------|-------------------|-------------------------|
| R. Kriel et al., 1996 | Children | Not mentioned | Children accessing activation devices, routine use |
| Priya P Shah et al., 2023 | Not mentioned | Inexperienced in garage door repair | Attempting to repair garage door |

The Kriel et al. study focused exclusively on children injured by automatic garage door openers, with most accidents occurring when children accessed activation devices and were entrapped under closing doors. The Shah et al. study examined adults attempting garage door repairs without adequate experience, suffering injuries when springs dislodged at high velocity.

### Garage Door Components and Injury Mechanisms

The specific components involved and mechanisms of injury differed fundamentally between the two studies, representing distinct hazard profiles.

| Study | Garage door type | Component involved | Mechanism of injury | Sequence of events |
|-------|------------------|---------------------|---------------------|-------------------|
| R. Kriel et al., 1996 | Automatic | Opener mechanism (reversing mechanism) | Entrapment under closing doors that failed to reverse | Children access activation devices, doors close without reversing when encountering a child |
| Priya P Shah et al., 2023 | Not mentioned | Springs | Spring dislodged at high velocity | Spring dislodged during repair attempt |

The Kriel et al. study identified a systemic failure of automatic garage door opener safety mechanisms. When the authors evaluated 50 garage door openers, 88% reversed when encountering a block of wood, but 40% failed to reverse when coming down on a supine, child-sized cardiopulmonary resuscitation mannequin. This finding demonstrated that the reversing mechanisms were inadequate for detecting soft, yielding objects like children. Safety devices failed in many cases, with doors not reversing when encountering children.

In the Shah et al. study, the injury mechanism involved the sudden, high-velocity dislodgement of tension springs during amateur repair attempts. No information was provided about whether safety devices failed or were bypassed, suggesting that the injuries resulted from the inherent hazards of working with high-tension components rather than device malfunction.

### Injury Severity and Outcomes

The two studies documented markedly different injury patterns reflecting the distinct mechanisms involved.

| Study | Body part affected | Type of injury | Severity | Fatal injuries | Functional outcomes |
|-------|---------------------|------------------|----------|----------------|--------------------|
| R. Kriel et al., 1996 | Brain | Permanent brain injury | Permanent | Yes, at least 85 children died | Permanent impairment |
| Priya P Shah et al., 2023 | Eye | Open globe injury | Final visual acuities ranged from 20/125 to no light perception | Not fatal | Not mentioned |

The Kriel et al. study documented catastrophic outcomes, with at least 85 children suffering permanent brain injury or death since 1974. These injuries resulted in permanent impairment, representing the most severe end of the injury spectrum. The mechanism of entrapment and crushing by heavy automatic doors explained the severity of neurological damage.

The Shah et al. study documented severe but non-fatal eye injuries. Open globe injuries represent full-thickness wounds through the eyeball, and the visual outcomes ranged from 20/125 to complete blindness (no light perception). While not fatal, these injuries resulted in permanent visual disability in most cases given the severity of the visual acuity measurements.

### Risk Factors and Contributing Circumstances

| Study | Risk factors identified |
|-------|-------------------------|
| R. Kriel et al., 1996 | Improper use: children accessing activation devices, adults leaving premises before door closure. Design flaws: doors failing to reverse when encountering child-sized objects. Age-related vulnerabilities: young children at risk due to inability to avoid entrapment. |
| Priya P Shah et al., 2023 | Lack of experience or training in garage door repair |

The Kriel et al. study identified multiple contributing factors spanning design, use, and developmental vulnerabilities. The design flaw was fundamental: reversing mechanisms designed to detect rigid objects failed to detect yielding objects like children. Children’s access to activation devices enabled the injuries, and their young age made them unable to escape once entrapped. Adult behavior also contributed, with at least one case involving an adult who activated the opener and left before the door completely closed.

The Shah et al. study identified inexperience as the primary risk factor. All patients were attempting garage door repairs without adequate training or experience, highlighting that spring replacement or adjustment requires specialized knowledge to perform safely.

### Prevention Recommendations

The Kriel et al. study provided specific, actionable prevention recommendations across multiple domains:

- **Testing methods for homeowners:** A large roll of paper towels should be used to test if the door opener reverses properly, mimicking the evaluation using a child-sized mannequin.
- **Immediate safety measures:** If the door fails the paper towel test, homeowners should disconnect the opener and operate the door manually until it is serviced.
- **Design improvements:** Replace non-compliant openers with newer models that meet Underwriters Laboratory standards.
- **Regulatory changes:** Improve safety standards for openers in apartment complexes.

The Shah et al. study did not provide specific prevention recommendations, though the findings implicitly suggest that garage door spring repairs should be performed only by trained professionals.

### Synthesis

These two studies document entirely distinct injury mechanisms that require different prevention approaches, representing separate public health challenges rather than conflicting findings.

The Kriel et al. study addresses a product safety failure affecting children during routine use of automatic garage doors. The injuries result from inadequate sensor technology that fails to detect soft, yielding objects, combined with children’s developmental inability to recognize danger or escape entrapment. The prevention strategy appropriately focuses on improving device design and providing homeowners with testing methods. The national scope and 22-year time span of surveillance data provide strong evidence that this represents a persistent, systemic safety problem rather than isolated incidents.

The Shah et al. study addresses an occupational hazard affecting adults during maintenance activities. The injuries result from the inherent physical hazards of high-tension springs releasing energy unexpectedly, compounded by the victims’ lack of training. The injury mechanism is fundamentally different—a projectile impact rather than crushing—and occurs during a deliberate maintenance activity rather than routine use. The smaller case count (7 patients over 15 years at a single center) reflects both the lower frequency of this injury mechanism and the study’s single-center design rather than national surveillance.

The temporal non-overlap of these studies (pre-1996 vs. 2008-2023) prevents direct comparison of injury rates, but both mechanisms likely remain relevant. The Kriel et al. findings led to updated Underwriters Laboratory standards, yet the extent to which existing installations have been upgraded remains unknown. The Shah et al. findings represent injuries from tension springs that are present in both manual and automatic systems, suggesting this hazard persists independent of opener technology improvements.

The distinct victim profiles—children using automatic doors versus inexperienced adults repairing doors—indicate that comprehensive garage door safety must address both consumer product safety for automatic systems and occupational safety for maintenance procedures. The severity of outcomes differs (neurological injury/death versus permanent visual disability), but both represent devastating, preventable injuries requiring targeted interventions appropriate to each mechanism.

## References

- [R. Kriel et al. (1996). Automatic garage door openers: hazard for children. Pediatrics](/content/review/8b48f250-1544-4e87-9a5c-2d4f108b1471/source/887f3727cd78424caf7c63da18668184/index.html)
- [Priya P Shah et al. (2023). Open Globe Injuries From Garage Door Springs. Ophthalmic Surgery Lasers and Imaging Retina](/content/review/8b48f250-1544-4e87-9a5c-2d4f108b1471/source/16593ef7222747209aa2c26dc08b2b72/index.html)