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Healthcare risk assessment

Neurosurgery and Spine Care Risk Assessment: Infection, Deterioration and Handover Controls

A worked example of how a neurosurgery and spine unit identifies, scores and controls risks to patients, from infection and medication harm to missed deterioration, handovers, records and continuity of care.

Updated November 2026 8 hazards assessed Review every 6 months Highest risk: Critical to Medium
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Executive summary

This assessment shows how a neurosurgery and spine unit can find, rate and control the risks that matter most to patients in its care. Eight risks were chosen because they are plausible in everyday surgical and ward work. Surgical site infection carries the highest inherent score, followed by missed neurological deterioration, which can cause lasting harm if not caught early. Each risk is scored before controls and again after existing and added controls. Most risks fall to Medium or Low once added controls are in place, but infection and deterioration remain under close watch because their impact stays serious. The first actions are a standard wound prevention bundle, a neurological escalation rule, transfer checklists and a competence check before each list. The unit is a teaching example, so every score illustrates method, not a real service or patient group.

Focus area
Neurosurgery, spine care and perioperative patient safety
Setting
Neurosurgical and spine service in a hospital with operating theaters, a ward, imaging and critical care support
Method
Five by five likelihood and impact risk register

Scope

This assessment covers the pathway of care for adults undergoing elective and emergency neurosurgical and spine procedures, from pre-assessment and consent through theater, recovery, ward care and discharge. It looks at risks to patient safety, privacy, staff competence and service continuity. It does not give clinical advice or replace local protocols. Jurisdiction, hospital size, staffing model and information systems are assumptions made for teaching and must be checked locally.

Context

The unit has consultant neurosurgeons and spine surgeons, registrars, specialist nurses, anesthesiologists, theater staff, physiotherapists and a ward team. Procedures include decompression, spinal fusion, tumor resection and cranial surgery. Patients rely on imaging, navigation equipment, implants, electronic records and medicines such as anticoagulants and strong analgesia. Each risk is scored before controls to show its natural level, then again after existing controls and the additional controls proposed here. Scores are illustrative and must be reviewed by clinical governance leads with specialist input.

Objectives, assets and stakeholders

The objective is to deliver safe, timely and effective neurosurgical and spine care, prevent avoidable harm, protect patient privacy and keep the trust of patients, families and referring teams. The assets in scope are patients, surgical and ward skills, implants and equipment, medicines, clinical records and imaging, and the unit's ability to keep operating. Stakeholders include patients and families, the surgical, anesthetic and nursing teams, pharmacy, infection prevention, information governance, hospital leaders, regulators and referring clinicians. Every risk has one owner role, and the clinical governance lead reviews the register each quarter and reports significant risks to the hospital board.

Risk matrix: before and after controls

Each cell shows hazard numbers placed by likelihood and impact. Compare the two grids to see how controls move each hazard.

Before controls

Inherent risk

Risk before controls: rows are likelihood from almost certain to rare, columns are impact from insignificant to catastrophic. Cells list hazard numbers.
1
Insignificant		 2
Minor		 3
Moderate		 4
Major		 5
Catastrophic
5 Almost certain
4 Likely Likelihood 4, impact 3, score 12, high: H05 H08 Likelihood 4, impact 5, score 20, critical: H01
3 Possible Likelihood 3, impact 3, score 9, medium: H07 Likelihood 3, impact 4, score 12, high: H02 H03 H06 Likelihood 3, impact 5, score 15, high: H04
2 Unlikely
1 Rare

After controls

Residual risk

Risk after controls: rows are likelihood from almost certain to rare, columns are impact from insignificant to catastrophic. Cells list hazard numbers.
1
Insignificant		 2
Minor		 3
Moderate		 4
Major		 5
Catastrophic
5 Almost certain
4 Likely
3 Possible Likelihood 3, impact 2, score 6, medium: H08
2 Unlikely Likelihood 2, impact 2, score 4, low: H07 Likelihood 2, impact 3, score 6, medium: H02 H03 H05 H06 Likelihood 2, impact 4, score 8, medium: H01 H04
1 Rare
  • Low 1 to 4
  • Medium 5 to 9
  • High 10 to 16
  • Critical 17 to 25

Hazard register

A summary first, then the detail for each hazard.

Summary of hazards with scores before and after controls
No.HazardBeforeAfterOwner
H01 Surgical site infection after cranial or spinal surgery 20 Critical 8 Medium Theater infection prevention lead
H02 Medication error with anticoagulants or strong analgesia 12 High 6 Medium Clinical pharmacist lead
H03 Equipment, implant or navigation system failure during surgery 12 High 6 Medium Theater equipment manager
H04 Missed neurological deterioration after surgery 15 High 8 Medium Ward clinical nurse manager
H05 Handover gaps between theater, ward and critical care 12 High 6 Medium Lead surgical nurse
H06 Consent and documentation gaps 12 High 6 Medium Clinical governance lead
H07 Privacy breach of imaging and clinical records 9 Medium 4 Low Information governance lead
H08 Staffing shortfall and competence gaps during complex cases 12 High 6 Medium Theater operations manager
H01

Surgical site infection after cranial or spinal surgery

Safety Before 20 After 8

Bacteria enter the surgical wound, implant or deep tissue during or after surgery, causing infection that may need further surgery, prolonged antibiotics or removal of hardware.

Who or what is affected: Patients, surgical team and infection prevention staff

Causes

Long procedures, implants, diabetes, smoking and breaks in sterile technique during surgery.

Consequences

Repeat surgery, sepsis, longer hospital stays, implant loss and lasting disability.

Existing controls

  • Pre-operative skin preparation and antibiotic timing follow the unit protocol.
  • Theater airflow, sterile packs and instrument counts are checked for each case.

Control gaps

Sterile technique is audited by sampling only, and wound checks after discharge are inconsistent.

Additional controls

  • Prevent: Standardize hair clipping, skin antisepsis and glove change points, and audit them monthly.
  • Detect: Review wound infections by procedure type and surgeon each quarter and report trends.
Likelihood 4 x impact 5 before; 2 x 4 after Owner: Theater infection prevention lead Target: Within 30 days Early warning: Unit wound infection rate rising above the agreed local threshold for two months.
H02

Medication error with anticoagulants or strong analgesia

Safety Before 12 After 6

A wrong dose, wrong drug or missed dose of an anticoagulant or opioid causes bleeding, over-sedation, breathing problems or uncontrolled pain, especially when transferring between theater and ward.

Who or what is affected: Patients on anticoagulants or opioids, nurses and prescribers

Causes

Complex medication lists, verbal orders during busy periods and unclear stop dates after surgery.

Consequences

Bleeding into the surgical site, over-sedation, falls, respiratory depression and readmission.

Existing controls

  • Prescriptions are checked by a pharmacist before the first dose.
  • Anticoagulant doses are written on a dedicated chart that records the indication.

Control gaps

Stop dates for temporary medicines are not always entered, and alerts are overridden without review.

Additional controls

  • Prevent: Use electronic prescribing alerts for interacting drugs and weight-based dosing checks.
  • Respond: Hold the next dose and contact the responsible prescriber when a result falls outside the agreed range.
Likelihood 3 x impact 4 before; 2 x 3 after Owner: Clinical pharmacist lead Target: Within 45 days Early warning: Opioid or anticoagulant doses charted late or outside the prescribed range in any shift.
H03

Equipment, implant or navigation system failure during surgery

Operational Before 12 After 6

Imaging, navigation, drills, monitors or implant sets fail or are wrongly sized during an operation, delaying surgery, prolonging anesthesia or forcing a change of plan.

Who or what is affected: Patients, theater team and equipment support staff

Causes

Ageing devices, missed servicing, software updates made during a list and poor storage of implant sets.

Consequences

Delayed or abandoned surgery, longer anesthesia, misplaced implants and patient harm.

Existing controls

  • Equipment is checked against a daily list before the first case.
  • Spare instruments and implants are held in the theater store.

Control gaps

Fault logs are not linked to individual cases, so repeat problems are seen late.

Additional controls

  • Prevent: Schedule preventive maintenance and record each equipment fault against the case it affected.
  • Recover: Keep a tested backup plan for imaging and navigation so surgery can continue safely or stop.
Likelihood 3 x impact 4 before; 2 x 3 after Owner: Theater equipment manager Target: Within 60 days Early warning: Repeated faults logged for one device within a single month.
H04

Missed neurological deterioration after surgery

Safety Before 15 After 8

A new weakness, drowsiness, swelling, bleeding or raised pressure after surgery is not noticed or acted on in time, so the patient deteriorates before a senior review takes place.

Who or what is affected: Patients, ward nurses and on-call surgical team

Causes

Busy shifts, observations charted without review and unclear thresholds for escalation.

Consequences

Permanent neurological harm, further emergency surgery, prolonged critical care and death.

Existing controls

  • Neurological observations are recorded at set intervals after surgery.
  • Critical care referral criteria are displayed on the ward.

Control gaps

Thresholds differ between staff, and observation intervals are not checked against the plan.

Additional controls

  • Detect: Use an early warning score with a neurological element and escalate any change at once.
  • Respond: Run a rapid response call with a named senior surgeon for any new weakness or drowsiness.
Likelihood 3 x impact 5 before; 2 x 4 after Owner: Ward clinical nurse manager Target: Within 30 days Early warning: Neurological observations missed or charted late in the first 24 hours after surgery.
H05

Handover gaps between theater, ward and critical care

People Before 12 After 6

Key facts such as allergies, anticoagulants, implant details, pending results or the surgeon's instructions are lost or unclear when a patient moves between teams.

Who or what is affected: Patients, receiving nurses and junior doctors

Causes

Shift changes, interruptions, reliance on memory and handover given in corridors.

Consequences

Delayed treatment, repeated errors, medication harm and complaints.

Existing controls

  • A structured handover tool is used at each transfer.
  • The post-operative plan is written in the record before transfer.

Control gaps

Handover tool use is not audited, and written plans are sometimes incomplete at transfer.

Additional controls

  • Prevent: Use a transfer checklist that covers allergies, anticoagulants, implants and pending results.
  • Detect: Audit a sample of handovers each month and feed back gaps to the team.
Likelihood 4 x impact 3 before; 2 x 3 after Owner: Lead surgical nurse Target: Within 30 days Early warning: Transfers recorded without a completed handover checklist in any week.
H06

Consent and documentation gaps

Legal and compliance Before 12 After 6

Consent is incomplete, not recorded clearly or does not cover the actual procedure, risks or alternatives, which can invalidate the consent and weaken the defense of the care given.

Who or what is affected: Patients, operating surgeons and clinical governance staff

Causes

Last-minute listing changes, rushed clinics and forms that do not match the operation performed.

Consequences

Complaints, regulatory review, loss of trust and disputes about the care given.

Existing controls

  • Consent is taken by the operating surgeon and recorded in the notes.
  • Risks and alternatives are listed on a standard consent form.

Control gaps

Forms are checked after surgery rather than before, and changes in plan are not always recorded.

Additional controls

  • Prevent: Add a consent review on the day of surgery, including a teach back check with the patient.
  • Detect: Review consent forms for completeness against the booked procedure before each list starts.
Likelihood 3 x impact 4 before; 2 x 3 after Owner: Clinical governance lead Target: Within 45 days Early warning: Procedures on the list with consent forms incomplete the day before surgery.
H07

Privacy breach of imaging and clinical records

Technology and data Before 9 After 4

Staff view, copy or share imaging and clinical records without a valid need, or leave screens and printed notes exposed, exposing sensitive health information about patients.

Who or what is affected: Patients, relatives and information governance staff

Causes

Shared workstations, curiosity, unclear need-to-know rules and unremoved access after moves.

Consequences

Loss of patient trust, formal investigation, distress to patients and regulatory penalties.

Existing controls

  • Records are accessed with individual login and role limits.
  • Staff complete data protection training each year.

Control gaps

Access logs are reviewed only after a complaint, and shared screens are not checked.

Additional controls

  • Prevent: Remove access rights promptly when staff change roles and limit shared screens in clinic areas.
  • Respond: Report suspected breaches to the privacy officer within the local time limit and contain access at once.
Likelihood 3 x impact 3 before; 2 x 2 after Owner: Information governance lead Target: Within 60 days Early warning: Access logs showing record views for patients not assigned to the staff member.
H08

Staffing shortfall and competence gaps during complex cases

People Before 12 After 6

Lists run with too few skilled staff or with trainees in key roles without supervision, so complex cases proceed without the expertise, support or time they need.

Who or what is affected: Patients, theater staff and trainees

Causes

Sickness, vacancies, late changes to lists and training pressures on senior staff.

Consequences

Longer procedures, errors, staff burnout and cancelled surgery.

Existing controls

  • The rota sets minimum staff for theater and ward cover.
  • Surgical lists are matched to the skills of the team on the day.

Control gaps

The competence matrix is not updated after training, and cover decisions are made late.

Additional controls

  • Prevent: Set a minimum competence matrix for each procedure and check it before each list starts.
  • Recover: Use a bank of trained cover and postpone non-urgent cases when cover falls below the minimum.
Likelihood 4 x impact 3 before; 3 x 2 after Owner: Theater operations manager Target: Within 60 days Early warning: Lists running with an agency or trainee in a key role without direct supervision.

Rating method and evaluation

Each risk is rated on two five-point scales. Likelihood runs from rare to almost certain, and impact runs from minor to catastrophic for the patient. Multiplying the two gives a score from 1 to 25, which falls into one of four bands: Low from 1 to 4, Medium from 5 to 9, High from 10 to 16 and Critical from 17 to 25. The score guides the order of work and is not a precise measurement. Inherent risk is the score before any controls. Residual risk is the score after existing and added controls. Patient harm is never rated down only because it has not happened yet. Critical and High risks need senior clinical attention and a dated plan, Medium risks need routine controls with a named owner, and Low risks are accepted and watched. Staff who do the work should challenge every rating. Ratings are reviewed whenever an indicator reaches its threshold, after any serious incident, or when a new procedure, device or staffing model is introduced.

Likelihood, impact and rating bands

Likelihood

  • 5 Almost certain: Expected to happen in most circumstances.
  • 4 Likely: Will probably happen in many circumstances.
  • 3 Possible: Could happen at some time.
  • 2 Unlikely: Not expected, but it could happen.
  • 1 Rare: Only in exceptional circumstances.

Impact

  • 1 Insignificant: No lasting effect. Handled within routine work.
  • 2 Minor: Small effect that is quickly corrected.
  • 3 Moderate: Noticeable effect that needs managed effort to correct.
  • 4 Major: Serious effect on people, delivery or reputation.
  • 5 Catastrophic: Severe or lasting effect that threatens the whole activity.

Bands (likelihood x impact)

  • Low (1 to 4): Accept and monitor.
  • Medium (5 to 9): Manage with routine controls.
  • High (10 to 16): Senior attention and a treatment plan.
  • Critical (17 to 25): Act first. Do not proceed until reduced.

Monitoring, escalation and review

Review this assessment every 6 months, and sooner when an indicator below reaches its threshold.

Early-warning indicators and escalation thresholds
Indicator to watchEscalate when
Unit wound infection rate compared with the agreed local threshold each month.Escalate to the clinical governance lead when the rate exceeds the threshold for two months, and to the medical director if a cluster is suspected.
Neurological observations missed or charted late in the first 24 hours after surgery.Escalate to the duty consultant at once for any missed set, and to the ward clinical nurse manager if more than one occurs in a shift.
Anticoagulant or opioid doses charted outside the prescribed range.Escalate to the clinical pharmacist lead on the same shift, and to the responsible consultant if harm is possible.
Access logs showing record views for patients not assigned to the staff member.Escalate to the information governance lead within one working day, and to the privacy officer if a breach is confirmed.
Lists running with an agency or trainee in a key role without direct supervision.Escalate to the theater operations manager before the list starts, and postpone non-urgent cases if cover is still short.

Contingency arrangements

If a serious event occurs, such as a wound infection cluster, a retained item, a neurological decline or a data breach, the duty consultant takes immediate charge and the patient is reviewed without delay. Related procedures are paused, records are preserved and the incident is reported through the unit's reporting route. The head of nursing informs the clinical governance lead, and families are told early and openly. Cover for theater and ward is arranged from the bank, and urgent transfers are made according to local critical care rules.

Prioritized action plan

  1. Introduce a wound infection prevention bundle with monthly audit, owner theater infection prevention lead, within 30 days.
  2. Set a neurological escalation rule with a named senior surgeon for any new weakness or drowsiness, owner ward clinical nurse manager, within 30 days.
  3. Use a structured transfer checklist covering allergies, anticoagulants and implants, owner lead surgical nurse, within 30 days.
  4. Add a consent review on the day of surgery, owner clinical governance lead, within 45 days.
  5. Set a minimum competence matrix and a cover rule for each list, owner theater operations manager, within 60 days.

Conclusion

Safe neurosurgical and spine care depends on steady habits: careful sterile technique, clear medicine checks, structured handovers, timely neurological review, valid consent and protected records. The highest scores sit with infection and deterioration, and each has actions that bring the residual score down. Treat the register as a living record, review it on the stated cycle, and seek specialist clinical and legal advice for any real patient, procedure or regulatory question.

Assumptions and limitations

Assumptions

  • The unit follows local surgical safety checklists and regional guidance, which are not specified here.
  • Procedures are performed by credentialed surgeons within a hospital that has critical care support.
  • Electronic records and imaging systems are used, and paper backup is not described in detail.
  • Jurisdiction and consent law are not specified, so legal duties are described in general terms only.

Limitations

  • The scores are examples for learning and do not describe any real unit, patient group or hospital.
  • Clinical decisions, procedures and thresholds differ by case and change over time, so specialist review is needed.
  • This is educational content and does not replace a formal site-specific risk assessment or licensed clinical advice.

Related frameworks to study

  • Hierarchy of controls
  • Structured clinical handover tools
  • Three lines model of risk ownership
  • Incident reporting and learning cycle
  • Informed consent process mapping

Healthcare Risk Assessment

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For Learning Reference Only: This assessment demonstrates how risk assessment principles are applied in a practical setting, providing a useful reference for learning and understanding. Actual assessments may be adapted to suit specific site conditions and circumstances.

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