This week in orthopedic research

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The trials everyone will be quoting at rounds: pulled from the literature weekly, summarized in plain language, and ranked by heat.

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Hot this week

British Journal of Sports Medicine · IF 15.5 · Jul 21, 2026 · LoE I

HEAT

Effectiveness of an individualised swimming and education programme for chronic low back pain (EduSwim): a randomised controlled trial

This Australian RCT randomized 76 adults with chronic non-specific low back pain to either an individualized 8-week swimming program plus education (delivered via four telehealth physiotherapy sessions) or education alone (up to two sessions). At 8 weeks, the swimming group had significantly less disability on the Roland Morris Disability Questionnaire than the education-only group (mean difference -2.5 points, 95% CI -4.5 to -0.5), but this advantage shrank over time and was no longer statistically significant by 52 weeks; pain intensity showed only a small, possibly non-meaningful benefit, and the swimming group had more adverse events (56% vs 30%), almost all non-serious.

AI summary · from the full text

Why it mattersSwimming is widely recommended by clinicians for chronic low back pain despite almost no trial evidence, and this is the first RCT to test it directly as the primary intervention, giving learners a concrete example of how weak evidence can underlie common practice recommendations.

RCTSpinen = 76DOI ↗

Rigor

Impact

Effect exceeds the MCID on Roland Morris Disability Questionnaire (RMDQ) and patient-important outcome.

Presenting this at rounds? Start here

?The swimming group received four telehealth sessions versus up to two in the education-only arm, so the intervention was not attention-matched; how much of the short-term benefit might reflect extra clinician contact and health-coaching rather than swimming itself?
?Given that the benefit was present mainly at 8 weeks and largely dissipated by 26-52 weeks alongside declining swimming adherence, how would you counsel a patient about whether to start a swimming program and how to sustain it long term?

Arthritis & Rheumatology · IF 11.4 · Jul 20, 2026 · LoE I

HEAT

Deucravacitinib in Active Psoriatic Arthritis: Efficacy and Safety up to 52 Weeks From the Randomized, Double‐Blind, Phase 3 POETYK PsA‐2 Trial

This phase 3 randomized controlled trial (POETYK PsA-2) tested deucravacitinib, a first-in-class oral selective TYK2 inhibitor, against placebo (with apremilast included only as a safety reference) in 729 adults with active psoriatic arthritis who were biologic-naive or had limited prior TNF inhibitor exposure. By week 16, significantly more patients on deucravacitinib achieved an ACR20 response than those on placebo (54.2% vs 39.4%, p=0.0002), and improvements in joint disease, skin disease (PASI75), physical function (HAQ-DI), and quality of life were sustained through 52 weeks with a stable, well-tolerated safety profile and no new safety signals.

AI summary · from the full text

Why it mattersDeucravacitinib offers an oral, non-biologic option with a novel mechanism (TYK2 regulatory-domain inhibition) and durable 1-year efficacy and safety data for psoriatic arthritis, a disease frequently co-managed by rheumatology and orthopaedic/joint specialists.

RCTGeneral🇨🇦 Canadian authorsn = 624DOI ↗

Rigor

Impact

Patient-important outcome and adequately powered, offset by more patients lost than the result can absorb and industry funded with author conflicts.

Presenting this at rounds? Start here

?The prespecified hierarchical (fixed-sequence) testing broke at enthesitis resolution, which did not reach significance at week 16, meaning all subsequent 'secondary' endpoints (dactylitis, DAS28-CRP, FACIT-Fatigue) are only reported as nominal, unadjusted p-values; how much weight should readers give these downstream results?
?Since apremilast was included only as a safety reference with no formal efficacy comparison to deucravacitinib, what can clinicians actually conclude about how this drug should be positioned relative to apremilast or biologics already in use for psoriatic arthritis?

Spine · IF 2.6 · Jul 20, 2026 · LoE II

HEAT

Complication Profiles of Corpectomy-Containing Versus Non-Corpectomy Anterior Cervical Surgery for Degenerative Cervical Myelopathy

This retrospective study from three Japanese spine centers compared complication rates between 407 patients who had corpectomy-containing anterior cervical surgery (ACCF or hybrid ACDF/ACCF) and 617 patients who had non-corpectomy anterior surgery (mostly ACDF) for degenerative cervical myelopathy. Corpectomy patients had far more perioperative local complications (38.1% vs 16.5%), dural injury (17.4% vs 1.5%), reoperation (9.8% vs 2.4%), and upper-extremity weakness (13.0% vs 4.2%), but after adjusting for how many levels were operated and whether the upper cervical spine was involved, the extra risk from corpectomy itself largely disappeared (adjusted OR fell from 1.82 to 1.12, no longer significant). The authors conclude that much of the added morbidity reflects the underlying OPLL pathology and greater surgical extent rather than corpectomy as a technique per se.

AI summary · from the full text

Why it mattersHelps residents and spine surgeons frame corpectomy's higher complication burden as a marker of surgical complexity and OPLL severity rather than an independent reason to avoid the procedure, which matters for informed consent and case selection.

MulticenterSpinen = 1,024DOI ↗

Rigor

Impact

Patient-important outcome and fragility index 96, offset by no power calculation.

Presenting this at rounds? Start here

?Because the choice between corpectomy and non-corpectomy surgery was driven by pathology severity and surgeon judgment rather than randomization, how confident can we be that adjusting for operated levels and upper cervical involvement fully removes confounding by indication, especially since important variables like canal-occupying ratio, K-line status, and dural ossification were not modeled?
?When counseling a patient with massive, dura-adherent OPLL who may need corpectomy for adequate decompression, how should this data on higher dural injury, reoperation, and airway complication rates be weighed against the potential neurological benefit of more complete anterior decompression?

Journal of the American Academy of Orthopaedic Surgeons · IF 2.9 · Jul 21, 2026 · LoE II

HEAT

NSAID Use and Bone Healing: An Umbrella Review with a Reconstructed Meta-Analysis

This study combined an umbrella review of 16 prior systematic reviews/meta-analyses with a newly reconstructed meta-analysis of 38 primary studies to ask whether NSAIDs impair bone healing, and if so, in whom. Pooling roughly 82,000 NSAID-exposed and 756,000 unexposed patients, NSAID use was associated with higher odds of nonunion (OR 1.56, 95% CI 1.18-2.11), with the risk concentrated in adults, traumatic (not elective) fractures, long bones (not spine), and higher-dose regimens, while short courses of 14 days or less and pediatric patients showed no significant increase in risk.

AI summary · from the full text

Why it mattersThis gives clerkship students and residents a risk-stratified framework for the common question of whether to give NSAIDs after a fracture, suggesting short low-dose courses are likely safe while caution is warranted with high-dose or prolonged use in adult long-bone fractures.

Meta-analysisSpinen = 838,410DOI ↗

Rigor

Impact

Patient-important outcome and fragility index 12304, offset by no power calculation and high heterogeneity.

Presenting this at rounds? Start here

?The umbrella review found most source reviews were rated low or critically low quality by AMSTAR-2, and the reconstructed meta-analysis pooled RCTs, cohorts, and case-control studies with I2 as high as 83-93% for several key comparisons; how much should we trust pooled odds ratios built on such heterogeneous, largely observational data with likely confounding by indication (sicker or more severely injured patients may both need more analgesia and heal worse)?
?Given the nonsignificant finding for delayed union, no signal in pediatric patients, and no significant harm with short-term (<=14 day) use even in adults, how would you counsel a patient after an isolated long-bone fracture regarding a brief postoperative NSAID course for pain control?

Bone & Joint Open · IF 2.8 · Jul 21, 2026 · LoE I

HEAT

Comparative efficacy of analgesic techniques in total hip arthroplasty

This network meta-analysis pooled 112 randomized trials to compare pain-control techniques (nerve blocks, periarticular injection, intrathecal morphine, and combinations) after total hip arthroplasty, using minimal clinically important difference (MCID) thresholds rather than statistical significance alone. No single technique produced a clinically meaningful reduction in postoperative day 1 pain scores, though intrathecal morphine (ITM) and iliopsoas block plus periarticular infiltration reduced 24-hour opioid consumption, and the pericapsular nerve group (PENG) block and ITM shortened hospital length of stay.

AI summary · from the full text

Why it mattersThis challenges current PROSPECT guideline recommendations by showing that many widely used blocks for THA do not clear the bar for clinically meaningful pain relief, which should reshape how residents think about perioperative analgesia choices.

Systematic reviewArthroplastyDOI ↗

Rigor

Impact

Contradicts current practice and patient-important outcome, offset by effect below the MCID on VAS pain score (0-10) and 24-hour opioid consumption (mg mor and no power calculation.

Presenting this at rounds? Start here

?The 24-hour opioid consumption outcome had very high heterogeneity (tau-squared 9.19) and the IPB+PAI group showing a clinically meaningful benefit included only 40 patients; how much should these factors temper confidence in the headline findings?
?Given that no technique meaningfully reduced POD1 pain but PENG and ITM shortened length of stay and improved mobilization, how should a surgeon weigh these different outcomes when selecting an analgesic strategy, especially considering ITM's opioid-related side-effect profile?

Also this week

Spine · IF 2.6 · Jul 20, 2026 · LoE II

HEAT

Laminoplasty Associated With a Lower Risk of Reoperation Compared to Laminectomy/Fusion for Multilevel Posterior Cervical Spine Surgery

This retrospective registry-based cohort study followed 4,412 adults who had multilevel posterior cervical spine surgery (2009-2023) at a large US integrated health system, comparing laminoplasty (PCL, 29.3%) to laminectomy with fusion (PLF, 70.7%). After adjusting for patient and surgical factors, PCL was associated with a lower risk of reoperation for adjacent segment disease (hazard ratio 0.42) and lower all-cause reoperation (hazard ratio 0.51) over a median 4.7 years of follow-up, with no difference in mortality, 90-day ED visits, or readmissions.

AI summary · from the full text

Why it mattersThis large, long-term comparison adds weight to the argument that laminoplasty should be considered more often than laminectomy/fusion for multilevel cervical spondylotic myelopathy, a debate residents will encounter on spine rotations and boards.

MulticenterSpinen = 50DOI ↗

Rigor

Impact

Patient-important outcome and 56.4-month follow-up, offset by no power calculation and no correction for multiple comparisons.

Presenting this at rounds? Start here

?Given the significant baseline imbalances in myelopathy diagnosis, spondylolisthesis, number of levels, and operative time between groups, how confident can we be that multivariable adjustment fully accounts for confounding by indication in choosing PCL versus PLF?
?If you were counseling a patient with multilevel cervical myelopathy and preserved sagittal alignment, would this study's reoperation data alone be enough to favor laminoplasty over laminectomy/fusion, or would you want patient-reported outcome and alignment data before changing your usual approach?

Shoulder & Elbow · IF 1.5 · Jul 21, 2026 · LoE II

HEAT

Restoring the anatomic tension relationship of the long head of the biceps during tenodesis: A prospective, randomized controlled trial

This RCT of 160 patients undergoing arthroscopic shoulder surgery with biceps tenodesis compared a standard landmark-based tenodesis technique to a newer patient-specific method for restoring the biceps tendon's natural length-tension relationship. At final follow-up (mean 19.6 months), ASES functional scores, pain scores, and range of motion were statistically similar between groups (e.g., ASES mean difference only 2.0 points, p=.604), though the patient-specific group had modestly higher ASES scores at 6 weeks (mean difference 9.1, p=.048) that did not persist.

AI summary · from the full text

Why it mattersSince biceps tenodesis tensioning technique has never had a defined gold standard, this trial helps reassure surgeons that meticulous anatomic tensioning is not required for good long-term outcomes.

RCTShoulder & Elbown = 81DOI ↗

Rigor

Impact

Patient-important outcome and 4% loss to follow-up, offset by effect below the MCID on ASES and per-protocol analysis only.

Presenting this at rounds? Start here

?The study tested outcomes at six time points without any stated correction for multiple comparisons, and only two of those twelve tests (ASES at 6 weeks and at 12 months, favoring opposite groups) reached significance; how much should we trust these isolated findings given the multiplicity problem and lack of blinded outcome assessment?
?Given that final-outcome scores were statistically and clinically similar between techniques, does the added technical complexity of intraoperative patient-specific tensioning (leaving arthroscopic cannulas in place, precise marking, avoiding limb repositioning) offer enough practical benefit to justify routine adoption over the simpler landmark-based approach?

OTA International The Open Access Journal of Orthopaedic Trauma · Jul 20, 2026 · LoE III

HEAT

Despite lower fracture rates, homeless patients have worse outcomes after geriatric ground-level falls: an analysis of National Trauma Data Bank

This retrospective cohort study used the National Trauma Data Bank (2021-2022) to compare outcomes after ground-level falls in 1,136 homeless versus 325,267 housed adults aged 50 and older. Despite being younger and having significantly lower fracture rates (51.2% vs 59.3%), homeless patients had worse outcomes: longer hospital stays (8.82 vs 6.63 days), more ICU admissions (25.3% vs 19.8%), and more complications (11.5% vs 6.3%), with homelessness independently associated with 1.5-fold higher odds of extended length of stay after adjusting for comorbidities and injury severity.

AI summary · from the full text

Why it mattersThis highlights that housing status is an independent driver of trauma outcomes and resource utilization, prompting orthopaedic trauma teams to consider social determinants of health in discharge planning for geriatric fall patients.

CohortTrauman = 326,403DOI ↗

Rigor

Impact

Fragility index 59 and first evidence on the question, offset by no power calculation.

Presenting this at rounds? Start here

?The homeless cohort had substantial missing/underdocumented comorbidity data and lacked frailty scoring; how might unmeasured confounding (e.g., undiagnosed chronic disease, injury severity misclassification) affect the interpretation of the adjusted odds ratio for extended length of stay?
?Given that homeless patients were more likely to be discharged home or leave against medical advice rather than to skilled nursing facilities, how should orthopaedic trauma services adapt discharge planning and follow-up care pathways for this population?

Journal of Hand Surgery (European Volume) · IF 1.3 · Jul 22, 2026 · LoE III

HEAT

A five-year radiostereometry study of cup fixation and implant survival in 484 Moovis trapeziometacarpal arthroplasties

This prospective single-center study followed 484 Moovis dual-mobility thumb basal joint implants in 407 patients, using precise radiostereometric analysis (RSA) to track cup migration alongside clinical and patient-reported outcomes for up to 9 years. Cup migration stabilized early (0.28 mm at 3 months, only rising to 0.39 mm by 5 years), grip strength, pain, and QuickDASH scores improved and held steady after 1 year, and 9-year implant survival was 98% for aseptic cup loosening and 87% for any component revision, with 96% patient satisfaction at 5 years.

AI summary · from the full text

Why it mattersThis provides some of the longest-term RSA-validated fixation and survivorship data for a widely used press-fit trapeziometacarpal cup, reassuring hand surgeons about its durability compared with earlier failure-prone designs.

CohortArthroplastyn = 484DOI ↗

Rigor

Impact

Effect exceeds the MCID on QuickDASH and blinded outcome assessment, offset by no power calculation and no comparator.

Presenting this at rounds? Start here

?RSA analysis was unusable in 84 hands and only 148 hands had 5-year RSA data (versus 484 implanted); how might this substantial and selective loss of migration data, combined with the wide range of actual follow-up times (2-9 years), bias the reported migration and survival estimates?
?Given that all 13 intraoperative trapezium fractures occurred in the first 20% of cases (suggesting a learning curve), what specific technical safeguards should surgeons adopting this implant put in place during their early experience to avoid this complication?

Spine · IF 2.6 · Jul 20, 2026 · LoE II

HEAT

Natural Progression Patterns of Lumbar Spondylolysis and Low-grade Spondylolisthesis in Late Adolescents

This multicenter study followed 154 skeletally mature adolescents with bilateral pars defects or low-grade spondylolisthesis for a median of 10.5 years to see how the condition behaves after growth stops. Vertebral slip itself rarely worsened (7.1%), but MRI-detected disc degeneration progressed in 30.5%, low back pain worsened in 44.2%, and new neurologic symptoms appeared in 4.5%, so that 56.5% of patients showed progression in at least one domain; L5-level disease, paraspinal sarcopenia, and sedentary behavior independently predicted this overall progression.

AI summary · from the full text

Why it mattersIt challenges the long-standing teaching that spondylolysis and low-grade spondylolisthesis become mechanically 'burned out' after skeletal maturity, suggesting these patients still need longitudinal monitoring for disc degeneration and pain rather than reassurance based on stable slip alone.

MulticenterSpinen = 154DOI ↗

Rigor

Impact

Contradicts current practice and 126-month follow-up, offset by no power calculation and no comparator.

Presenting this at rounds? Start here

?The study had no healthy control group and relied on retrospective extraction of symptom data from questionnaires and records; how might recall bias and the absence of a comparator affect confidence in the 44.2% LBP progression rate and the identified risk factors?
?If vertebral slip itself rarely progresses but disc degeneration and pain commonly do, should adolescent spondylolysis follow-up protocols shift emphasis away from serial radiographs toward symptom tracking and MRI surveillance, especially in patients with L5-level disease, sarcopenia, or sedentary lifestyles?

JAMA Network Open · IF 10.5 · Jul 24, 2026 · LoE II

HEAT

Glucagon-Like Peptide-1 Receptor Agonists and Fragility Fracture Risk in Type 2 Diabetes

This retrospective database study used TriNetX electronic health records to compare fragility fracture risk in about 133,600 propensity-matched adults with type 2 diabetes who started a GLP-1 receptor agonist versus a DPP-4 inhibitor. Over 3 years, fragility fractures occurred in 2,030 GLP-1 RA users versus 2,484 DPP-4i users, corresponding to a 21% lower relative risk (HR 0.79) that appeared independent of weight loss or glucose control, though the effect weakened by year 3 and was not seen in patients without diabetes.

AI summary · from the full text

Why it mattersOrthopaedic surgeons are increasingly seeing patients on GLP-1 RAs and need to know whether these drugs raise or lower fragility fracture risk, especially since weight loss itself is a known risk factor.

MulticenterSpinen = 133,606DOI ↗

Rigor

Impact

Contradicts current practice and patient-important outcome, offset by only 36 months of follow-up and more patients lost than the result can absorb.

Presenting this at rounds? Start here

?Given this is a retrospective, non-randomized comparison using administrative EHR data with unmeasured confounders like physical activity, fall risk, and baseline bone mineral density, how much can propensity-score matching really substitute for randomization here?
?If you were counseling a patient with T2D and osteopenia who is starting a GLP-1 RA, would this study change how you approach bone health monitoring, and why or why not?

The American Journal of Sports Medicine · IF 4.5 · Jul 23, 2026 · LoE III

HEAT

Minimum 5-Year Outcomes After Arthroscopic Subspine Decompression in Patients With Femoroacetabular Impingement: A Propensity-Matched Study

This retrospective, propensity-matched cohort study from a single high-volume hip preservation center followed 94 patients who underwent arthroscopic subspine decompression (SSD) for AIIS impingement alongside FAI correction and compared them to 188 matched controls who had FAI surgery alone. At a mean follow-up of about 6 years, the SSD group showed large, statistically significant improvements in all patient-reported outcome scores (P<.0001), with rates of achieving meaningful clinical improvement (MCID/PASS) and conversion to hip arthroplasty (5.3% vs 17.4%, not statistically significant) similar to controls, while time to revision arthroscopy was significantly longer in the SSD group (52.0 vs 32.8 months).

AI summary · from the full text

Why it mattersFor residents learning hip arthroscopy, this suggests that treating subspine impingement concurrently with FAI correction does not compromise, and may even extend, the durability of surgical results at mid-term follow-up.

CohortArthroplastyn = 111DOI ↗

Rigor

Impact

Patient-important outcome and adequately powered, offset by effect below the MCID on mHHS, NAHS, HOS-SSS, iHOT-12, VAS and no correction for multiple comparisons.

Presenting this at rounds? Start here

?This was a retrospective, single-surgeon cohort study with no blinded outcome assessment and no mention of correction for the many statistical comparisons performed across five PRO instruments and subgroup analyses; how might these factors have inflated the apparent robustness of the findings?
?Given that the SSD group had more severe intra-articular pathology (more femoroplasty and loose-body removal) yet achieved outcomes comparable to a less-diseased control group, how should this inform patient selection and threshold for performing SSD intraoperatively?

Journal of Orthopaedic Surgery and Research · IF 2.8 · Jul 21, 2026 · LoE III

HEAT

Refracture after implant removal of the clavicle: a retrospective cohort analysis

This retrospective single-center study followed 575 adults who had clavicle plates removed after confirmed fracture healing and asked how often the bone rebroke afterward. Refracture occurred in 21 patients (3.7%), most within the first two years and typically after a new trauma at the original fracture site; the only significant risk factor identified was complex, comminuted midshaft fracture morphology (AO type 15.2C), which carried roughly a 6.7-fold higher hazard of refracture than other fracture types. Age, sex, BMI, smoking, ASA class, and how long the implant stayed in before removal were not associated with refracture risk.

AI summary · from the full text

Why it mattersRefracture is an uncommon but recognized complication of elective clavicle hardware removal, and this is the largest cohort to date suggesting fracture morphology, not implant retention time, should guide the decision to remove plates.

CohortTrauman = 37DOI ↗

Rigor

Impact

Patient-important outcome and adequate follow-up, offset by no power calculation and no comparator.

Presenting this at rounds? Start here

?With only 21 refracture events driving the multivariable Cox model, and the authors themselves flagging overfitting risk and wide confidence intervals (HR 6.70, 95% CI 1.49-30.12), how much weight should be placed on AO 15.2C as an independent predictor?
?If a patient with a healed AO 15.2C midshaft clavicle fracture requests implant removal purely for cosmetic or mild discomfort reasons, how should this refracture risk data change your counseling and shared decision-making?

Spine · IF 2.6 · Jul 20, 2026 · LoE III

HEAT

Cognitive Impairment as an Effect Modifier of Perioperative Risk in Elderly Patients Undergoing Lumbar Fusion Surgery

This retrospective single-center study followed 243 patients aged 75 or older undergoing lumbar fusion, comparing 57 with preoperative cognitive impairment (CI, by education-adjusted MMSE) to 186 without. Major postoperative complications were more common in the CI group (42.1% vs 33.9%), and CI amplified the harmful effects of frailty, diabetes, and intraoperative transfusion volume on complication risk (significant interaction terms), while also independently predicting worse functional recovery (lower MCID achievement on ODI and VAS scores).

AI summary · from the full text

Why it mattersThis suggests that preoperative cognitive screening could help identify elderly spine surgery patients in whom frailty, diabetes, and blood management deserve extra perioperative attention, though the retrospective, single-center, exploratory design limits how much should change in practice today.

CohortSpinen = 243DOI ↗

Rigor

Impact

Effect exceeds the MCID on ODI, VAS back, VAS leg and adequately powered, offset by only 6 months of follow-up and no correction for multiple comparisons.

Presenting this at rounds? Start here

?Given only 57 patients in the CI subgroup and a stated limitation of reduced model stability, how confident can we be in the three specific interaction effects (diabetes, frailty, transfusion) versus finding them by chance among many variables tested without correction for multiplicity?
?If a patient screens positive for cognitive impairment preoperatively, how would you translate this study's findings into a concrete perioperative plan around glycemic control, frailty prehabilitation, and blood management, and what would you tell the patient about expected functional recovery?

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