Nursing research summary

Effect of postoperative comfort care based on a standard operating procedure management model in children with upper extremity fractures

In a retrospective study of 150 children recovering from upper extremity fracture surgery, an SOP-based (standard operating procedure) comfort care model was linked to significantly better joint mobility, joint function, pain control, comfort, and psychological resilience than conventional care (all P < 0.001). Findings come from one hospital's retrospective data, so causal claims and generalizability remain limited.

BMC Pediatrics Published 2025 3 min read DOI 10.1186/s12887-025-06089-3

In brief

In a retrospective study of 150 children recovering from upper extremity fracture surgery, an SOP-based (standard operating procedure) comfort care model was linked to significantly better joint mobility, joint function, pain control, comfort, and psychological resilience than conventional care (all P < 0. 001).

What this article is about

Quick Answer

In a retrospective study of 150 children recovering from upper extremity fracture surgery, an SOP-based (standard operating procedure) comfort care model was linked to significantly better joint mobility, joint function, pain control, comfort, and psychological resilience than conventional care (all P < 0.001). Findings come from one hospital's retrospective data, so causal claims and generalizability remain limited.

Student takeaways

Key Takeaways

  • In a retrospective study of 150 children who had surgery for upper extremity fractures, the SOP-based comfort care group (n=75) and the conventional care group (n=75) showed no significant baseline differences in joint mobility, joint function, pain, comfort, or psychological resilience (all P > 0.05).
  • After the intervention period, children who received SOP-based comfort care had significantly greater joint mobility than those receiving conventional care (P < 0.001).
  • The SOP-based comfort care group showed significantly higher joint function scores compared with the conventional care group (P < 0.001).
  • Pain scores were significantly lower in the SOP-based comfort care group than in the conventional care group (P < 0.001), and comfort scores improved across all measured comfort dimensions (P < 0.001).
  • The SOP-based comfort care group demonstrated significantly enhanced psychological resilience (P < 0.001) and, clinically, better cooperation with postoperative functional exercise than the conventional care group.

Student summary

Why This Research Matters

When a child breaks a bone in the arm or hand and needs surgery, recovery does not end when the operation is over. The child still has to move a stiff, painful joint through weeks of exercises, often while frightened and in discomfort. This study, published in BMC Pediatrics, asks a very practical nursing question: does giving nurses a clear, standardized checklist for comfort care actually help children recover better after upper extremity fracture surgery than the usual approach?

The research team, based at a children's hospital in Hangzhou, China, looked back at records for 150 children treated after surgery for upper extremity fractures between August 2023 and August 2024. This is a retrospective study, meaning the researchers reviewed existing clinical data rather than assigning children to treatments as the study unfolded. The children were split into two groups of 75 based on which nursing approach they had already received. One group received conventional postoperative care, the routine nursing follow-up used at the hospital. The other group received care built on a standard operating procedure, or SOP, model for comfort care. An SOP in nursing is essentially a written, step-by-step protocol that spells out exactly what a nurse should assess, document, and act on at each stage of care, rather than leaving the details to individual judgment or habit. Applied to comfort care, an SOP model typically standardizes things such as pain reassessment intervals, positioning and splint checks, education scripts for functional exercises, and psychological support touchpoints, so every child receives the same core interventions no matter which nurse is on shift.

Before comparing outcomes, the researchers checked that the two groups were similar at baseline. They found no significant differences between groups in joint mobility, joint function, pain, comfort, or psychological resilience scores at the start, which matters because it means any differences seen afterward are more likely to reflect the care model rather than pre-existing differences between the children.

After the intervention period, the picture changed. Children who received the SOP-based comfort care showed significantly greater joint mobility, higher joint function scores, lower pain scores, and better comfort scores across all the comfort dimensions measured, compared with children who received conventional care. All of these differences were statistically significant. The intervention group also showed improved psychological resilience scores, and the study authors reported that these children showed better cooperation with their prescribed functional exercise program in day-to-day clinical care.

Why does this matter for a nursing student? Functional exercise after an upper extremity fracture repair is not optional; it is what prevents long-term stiffness and disability in a growing child's arm or hand. But young children are often afraid of pain, do not understand why the exercises matter, and may resist cooperating with therapy. This study suggests that giving nurses a structured, predictable protocol, rather than relying on ad hoc bedside comfort measures, may translate into measurably better pain control, comfort, and psychological steadiness, which in turn supports the child's willingness to do the hard, sometimes uncomfortable work of rehabilitation.

As you read this study, keep its limits in mind. It is a single-hospital, retrospective study, so we cannot be certain the SOP model caused the improvements rather than some other difference between the time periods or nursing teams. The abstract does not specify which validated instruments were used to measure joint mobility, comfort, or psychological resilience, nor does it give exact score values or confidence intervals, only p-values, so the clinical size of the benefit is hard to judge from the abstract alone. The claim about better functional exercise cooperation is described as a clinical observation rather than a separately statistically tested outcome. Still, the study offers a useful, concrete example of how standardizing nursing workflows around comfort, not just efficiency, might support better recovery for children after orthopedic surgery, and it is a good prompt for discussing how SOPs function in real pediatric nursing units.

Source abstract

Study Overview

Abstract Objective To study the effect of comfort nursing management of postoperative pediatric upper extremity fractures on the basis of the standard operating procedure (SOP) management model. Methods The clinical data of 150 pediatric upper extremity fracture patients treated postoperatively at our hospital (August 2023–August 2024) were retrospectively analyzed. Participants were divided into a control group (conventional care) and an intervention group (SOP-based comfort care) according to nursing management methods. Postoperative functional exercise outcomes were compared. Results A total of 150 children were enrolled (75 per group). Baseline assessments confirmed no significant differences in joint mobility, joint function, pain, comfort, or psychological resilience scores between groups (all P > 0.05). Post-intervention analyses demonstrated significantly greater joint mobility in the intervention group (P < 0.001), higher joint function scores (P < 0.001), lower pain scores (P < 0.001), improved comfort scores across all dimensions (P < 0.001), and enhanced psychological resilience (P < 0.001), with significantly better functional exercise adherence observed clinically in the intervention group. Conclusion The implementation of SOP-based management model comfort care for pediatric children with upper extremity fractures can improve their postoperative functional exercise cooperation, pain status relief after surgical treatment, emotional stability, and degree of cooperation in the clinical implementation of functional exercise.

Study type: Open access journal article

Evidence appraisal

Main Findings

  • In a retrospective study of 150 children who had surgery for upper extremity fractures, the SOP-based comfort care group (n=75) and the conventional care group (n=75) showed no significant baseline differences in joint mobility, joint function, pain, comfort, or psychological resilience (all P > 0.05).
  • After the intervention period, children who received SOP-based comfort care had significantly greater joint mobility than those receiving conventional care (P < 0.001).
  • The SOP-based comfort care group showed significantly higher joint function scores compared with the conventional care group (P < 0.001).
  • Pain scores were significantly lower in the SOP-based comfort care group than in the conventional care group (P < 0.001), and comfort scores improved across all measured comfort dimensions (P < 0.001).
  • The SOP-based comfort care group demonstrated significantly enhanced psychological resilience (P < 0.001) and, clinically, better cooperation with postoperative functional exercise than the conventional care group.

Practice transfer

Clinical Relevance

  • Standardizing comfort care around a written SOP, rather than leaving comfort measures to individual nurse judgment, may support more consistent pain control and comfort for children recovering from upper extremity fracture surgery.
  • Because functional exercise adherence appeared better in the SOP group, nurses working in pediatric orthopedic units might consider how structured pain management and psychological support protocols could improve a child's willingness to participate in prescribed rehabilitation exercises.
  • Assessing psychological resilience alongside physical outcomes suggests that pediatric postoperative comfort care should be planned as a combined physical-and-emotional intervention rather than pain control alone.
  • The consistency of benefit across joint mobility, joint function, pain, and comfort domains suggests SOP-style protocols may be worth piloting in units where postoperative pediatric comfort care is currently ad hoc or nurse-dependent, with attention to local context and resources.
  • Any adoption of this care model in a Canadian pediatric nursing setting should be treated as a practice hypothesis to test locally rather than an established standard, given the retrospective, single-center nature of the supporting evidence.

Faculty notes

Educational Relevance

This retrospective cohort study from Hangzhou Children's Hospital (Wang et al., BMC Pediatrics, 2025) compares conventional postoperative nursing care with an SOP-driven comfort care model in 150 children treated surgically for upper extremity fractures between August 2023 and August 2024 (n=75 per group, group assignment by nursing management method rather than randomization). It is a useful teaching case for discussing quality-improvement-style nursing research: the intervention is not a drug or device but a standardized workflow, and the outcomes span physical (joint mobility, joint function, pain), affective/comfort, and psychological (resilience) domains simultaneously.

Methodologically, the design is retrospective and non-randomized; students should be pushed to articulate why this limits causal inference even when baseline comparability is demonstrated. The authors report no significant between-group differences at baseline across all five outcome domains (P > 0.05), which strengthens confidence that post-intervention differences are attributable to the care model rather than pre-existing group imbalance, but retrospective allocation by 'nursing management method' still raises the possibility that the two groups were treated in different time periods or by different staff cohorts, introducing potential confounding by secular trend or practitioner effect. The abstract does not name the specific instruments used for joint mobility, joint function, pain, comfort, or psychological resilience, nor does it report effect sizes, confidence intervals, or raw score values beyond p-values, all of which are appropriate points for a critical appraisal exercise: ask students what they would want to see in the full-text Methods and Results tables before accepting the magnitude of benefit.

Substantively, the reported results are internally consistent: the SOP group showed significantly greater joint mobility, higher joint function scores, lower pain, better comfort scores across all comfort dimensions, and higher psychological resilience (all P < 0.001), alongside better clinically observed adherence to functional exercise. This pattern fits a coherent clinical narrative in pediatric orthopedic nursing: standardized, protocol-driven comfort interventions (consistent pain reassessment intervals, structured education, predictable psychological support) may reduce the anxiety and pain barriers that otherwise undermine a child's willingness to perform therapeutic exercise, which in turn supports better functional recovery. This is consistent with established comfort theory frameworks in pediatric nursing, though the study itself does not cite a specific theoretical model in the abstract.

For discussion, faculty may want to draw out: (1) the distinction between statistical significance (P < 0.001 across many outcomes) and clinical significance, since exact score magnitudes are not given in the abstract; (2) the implications of retrospective, single-center design for generalizability to other pediatric surgical populations, age ranges, or health systems, including Canadian pediatric units; (3) how SOP/protocol standardization functions as a nursing intervention in its own right, distinct from any single comfort technique; and (4) what a rigorous follow-up study (prospective, randomized, multi-site, with named validated instruments and reported effect sizes) would need to look like to strengthen the evidence base for adopting SOP-based comfort care models more broadly.

Critical appraisal

Limitations

  • The study design is retrospective, drawing on existing clinical records rather than prospectively randomizing children to treatment groups, which limits the strength of causal conclusions about the SOP model.
  • The study was conducted at a single hospital (a children's hospital in Hangzhou, China), which may limit generalizability to other pediatric populations, health systems, or countries, including Canada.
  • The abstract does not identify the specific validated instruments used to measure joint mobility, joint function, pain, comfort, or psychological resilience, making it difficult to judge measurement rigor or compare with other studies.

Classroom use

Discussion Questions

  • Why does a retrospective, non-randomized design limit how confidently we can say the SOP-based comfort care model caused the improved outcomes, rather than some other factor?
  • What specific elements might an SOP for postoperative pediatric comfort care standardize, and how could each element plausibly affect pain, comfort, or psychological resilience?
  • Why is it clinically important that the two groups showed no significant baseline differences before comparing post-intervention outcomes?
  • What validated instruments would you expect to see used to measure joint mobility, joint function, pain, comfort, and psychological resilience in a study like this, and why does the abstract's silence on this matter for appraisal?
  • How might better pain control and psychological resilience causally lead to better cooperation with prescribed functional exercise in a young child recovering from fracture surgery?
  • What is the difference between statistical significance (P < 0.001) and clinical significance, and why can we not fully judge the latter from this abstract alone?
  • How might nursing staffing, workload, or experience level confound a comparison between two nursing management approaches applied in different time periods at the same hospital?
  • What would a stronger follow-up study design (in terms of randomization, sample size, multi-site recruitment, or outcome measurement) need to include to build on these findings?
  • How might comfort theory in pediatric nursing help explain why standardizing comfort interventions could support both physical and psychological recovery outcomes?
  • If you were adapting this SOP-based comfort care model for a pediatric orthopedic unit in Canada, what local factors (patient population, staffing model, existing protocols) would you need to consider before implementation?

Knowledge check

Quiz

1. What type of study design did the researchers use to compare conventional care with SOP-based comfort care?

  1. A prospective randomized controlled trial
  2. A retrospective analysis of clinical data
  3. A systematic review of prior studies
  4. A qualitative interview study
Answer: A retrospective analysis of clinical data
Rationale: The abstract states: 'The clinical data of 150 pediatric upper extremity fracture patients treated postoperatively at our hospital... were retrospectively analyzed.'

2. How many children were enrolled in this study in total, and how were they divided?

  1. 100 children, 50 per group
  2. 150 children, 75 per group
  3. 200 children, 100 per group
  4. 150 children, 100 in intervention and 50 in control
Answer: 150 children, 75 per group
Rationale: The abstract states: 'A total of 150 children were enrolled (75 per group).'

3. What did baseline assessments show about the two groups before the intervention?

  1. The intervention group already had better joint mobility scores
  2. There were no significant differences between groups in joint mobility, joint function, pain, comfort, or psychological resilience
  3. The control group had significantly worse pain scores at baseline
  4. Baseline data were not collected
Answer: There were no significant differences between groups in joint mobility, joint function, pain, comfort, or psychological resilience
Rationale: The abstract notes: 'Baseline assessments confirmed no significant differences in joint mobility, joint function, pain, comfort, or psychological resilience scores between groups (all P > 0.05).'

4. According to the results, what happened to pain scores in the SOP-based comfort care group after the intervention, compared with conventional care?

  1. Pain scores were significantly lower in the intervention group (P < 0.001)
  2. Pain scores were unchanged between groups
  3. Pain scores were significantly higher in the intervention group
  4. Pain was not measured in this study
Answer: Pain scores were significantly lower in the intervention group (P < 0.001)
Rationale: The abstract states: 'Post-intervention analyses demonstrated... lower pain scores in the intervention group (P < 0.001).'

5. Which outcome domains were reported to improve significantly in the SOP-based comfort care group after intervention?

  1. Only pain scores
  2. Joint mobility, joint function, pain, comfort, and psychological resilience
  3. Only psychological resilience and comfort
  4. Length of hospital stay and cost of care
Answer: Joint mobility, joint function, pain, comfort, and psychological resilience
Rationale: The abstract reports significantly greater joint mobility, higher joint function scores, lower pain scores, improved comfort scores across all dimensions, and enhanced psychological resilience (all P < 0.001) in the intervention group.

6. How is the improvement in functional exercise adherence described in the abstract?

  1. As a statistically tested primary outcome with a reported p-value
  2. As better functional exercise adherence observed clinically in the intervention group
  3. As unchanged between the two groups
  4. As worse in the intervention group
Answer: As better functional exercise adherence observed clinically in the intervention group
Rationale: The abstract states: 'significantly better functional exercise adherence observed clinically in the intervention group,' distinguishing it from the formally tested statistical outcomes.

7. What is a standard operating procedure (SOP), as applied to comfort care in this study's context?

  1. A single medication protocol for pain
  2. A standardized, step-by-step nursing management model guiding comfort-related care
  3. A surgical technique for fracture repair
  4. A hospital billing procedure
Answer: A standardized, step-by-step nursing management model guiding comfort-related care
Rationale: The study evaluates 'comfort nursing management... on the basis of the standard operating procedure (SOP) management model,' i.e., a standardized nursing care protocol, as distinct from conventional, less standardized care.

8. Which of the following is a limitation of this study, based on its design as described in the abstract and available reporting?

  1. It used a prospective randomized design with a large multi-site sample
  2. It was a retrospective, single-hospital study without reported effect sizes or named outcome instruments
  3. It measured only laboratory values with no patient-reported outcomes
  4. It included adult patients only
Answer: It was a retrospective, single-hospital study without reported effect sizes or named outcome instruments
Rationale: The abstract describes a retrospective analysis at 'our hospital' (a single center, later identified as Hangzhou Children's Hospital) and reports only p-values without effect sizes or instrument names.

9. Over what time period were the patients in this study treated?

  1. January 2022 to January 2023
  2. August 2023 to August 2024
  3. August 2020 to August 2021
  4. The time period is not mentioned in the abstract
Answer: August 2023 to August 2024
Rationale: The abstract specifies patients were 'treated postoperatively at our hospital (August 2023–August 2024).'

10. What overall conclusion did the study authors draw about SOP-based comfort care for children with upper extremity fractures?

  1. It has no measurable effect on recovery
  2. It can improve postoperative functional exercise cooperation, pain relief, emotional stability, and cooperation with functional exercise
  3. It should replace surgical intervention
  4. It only benefits adult patients, not children
Answer: It can improve postoperative functional exercise cooperation, pain relief, emotional stability, and cooperation with functional exercise
Rationale: The abstract concludes: 'The implementation of SOP-based management model comfort care... can improve their postoperative functional exercise cooperation, pain status relief after surgical treatment, emotional stability, and degree of cooperation in the clinical implementation of functional exercise.'

Study cards

Flashcards

What population did this study focus on?

Pediatric patients who had surgery for upper extremity fractures.

What was the total sample size, and how was it split between groups?

150 children total, with 75 in the control (conventional care) group and 75 in the intervention (SOP-based comfort care) group.

What study design was used?

A retrospective analysis of existing clinical data, comparing two nursing management approaches.

What time period did the study cover?

Patients treated postoperatively between August 2023 and August 2024.

What does SOP stand for in this study's intervention?

Standard operating procedure — a standardized, step-by-step nursing management model for comfort care.

What was the comparison group's type of care called?

Conventional care, the hospital's routine postoperative nursing approach.

What five outcome domains were assessed at baseline and after intervention?

Joint mobility, joint function, pain, comfort, and psychological resilience.

What did baseline comparisons show between the two groups?

No significant differences between groups in any of the five outcome domains (all P > 0.05).

Why does baseline similarity matter for interpreting this study?

It supports the idea that post-intervention differences reflect the care model rather than pre-existing group differences.

What happened to joint mobility in the SOP-based comfort care group after intervention?

It was significantly greater than in the conventional care group (P < 0.001).

What happened to joint function scores in the intervention group?

They were significantly higher than in the conventional care group (P < 0.001).

What happened to pain scores in the intervention group?

They were significantly lower than in the conventional care group (P < 0.001).

What happened to comfort scores in the intervention group?

They improved across all measured comfort dimensions compared with conventional care (P < 0.001).

What happened to psychological resilience in the intervention group?

It was significantly enhanced compared with the conventional care group (P < 0.001).

How was functional exercise adherence described in the intervention group?

As significantly better, but observed clinically rather than reported as a formally tested statistical outcome.

At which hospital was this study conducted?

According to the article's ethics approval statement, at Hangzhou Children's Hospital.

In what journal was this study published, and when?

BMC Pediatrics, published in 2025.

Is this study open access?

Yes, it is listed as an open access article indexed in DOAJ.

What is one key limitation of this study's design?

It is retrospective and conducted at a single hospital, limiting causal inference and generalizability.

What is the overall clinical conclusion of the study?

SOP-based comfort care may improve postoperative functional exercise cooperation, pain relief, emotional stability, and cooperation with functional exercise in children after upper extremity fracture surgery.

Search-ready answers

Frequently asked questions

What is this study about?

It compares conventional postoperative nursing care with an SOP-based (standard operating procedure) comfort care model in 150 children who had surgery for upper extremity fractures, looking at joint mobility, joint function, pain, comfort, and psychological resilience.

How many children were in the study?

150 children total, split evenly into a 75-person conventional care group and a 75-person SOP-based comfort care group.

Was this a randomized controlled trial?

No. It was a retrospective analysis of existing clinical records, not a prospective randomized trial, which limits how strongly causation can be claimed.

What does 'SOP-based comfort care' mean?

It refers to a standardized, written nursing management protocol for delivering comfort care, as opposed to conventional care that may vary more by individual nurse practice.

Did the SOP-based comfort care group actually do better than the conventional care group?

Yes, according to the abstract, the SOP group showed significantly greater joint mobility, higher joint function, lower pain, better comfort scores, and higher psychological resilience (all P < 0.001) after the intervention.

Were the two groups comparable before the intervention started?

Yes, baseline assessments found no significant differences between the groups across all five measured outcomes before the intervention.

Where was this study conducted?

At a children's hospital in Hangzhou, China (identified as Hangzhou Children's Hospital in the article's ethics approval statement).

What are the main limitations of this study?

It is a retrospective, single-hospital study without reported effect sizes or named measurement instruments in the abstract, which limits generalizability and makes it hard to judge the clinical size of the benefit.

Can this SOP model be applied directly in Canadian pediatric units?

Not without further evaluation. The evidence comes from one hospital using a retrospective design, so any adoption elsewhere, including in Canada, should be treated as a hypothesis to test locally, not an established standard.

Why might comfort care affect a child's cooperation with functional exercise?

Better pain control, comfort, and psychological resilience may reduce fear and discomfort, making a child more willing and able to participate in the postoperative exercises needed for recovery.