Comparison of Walking Biomechanics After Physical Therapist-Led Care or Hip Arthroscopy for Femoroacetabular Impingement Syndrome: A Secondary Analysis From a Randomized Controlled Trial

Conservative treatment versus hip arthroscopy in patients with femoroacetabular impingement : a multilevel meta-analysis of randomized controlled trials

Aims

Femoroacetabular impingement (FAI) is a serious cause of hip pain with loss of function, and development of osteoarthritis of the hip. The aim of this multilevel meta-analysis of randomized controlled trials (RCTs) was to evaluate the outcomes of FAI patients treated conservatively compared with those treated with hip arthroscopy (HAS).

Methods

A systematic literature search of PubMed, CENTRAL of the Cochrane Library, Epistemonikos, and Embase databases was conducted up to 30 June 2024. In a frequentist multilevel meta-analysis with random effects model, means with 95% CIs were calculated separately in the conservative treatment subgroup and the HAS subgroup. A test for subgroup differences in meta-analysis was then performed to determine whether there was a statistically significant difference between the means of the two subgroups. Clinical assessment was based on Harris Hip Score (HHS), the International Hip Outcome Tool (iHOT), the Hip disability and Osteoarthritis Outcome Score (HOOS), the Hip Outcome Score Activities of Daily Living (HOS-ADL), and visual analogue scale (VAS) for pain.

Results

A total of 21 RCTs, including 674 patients in the conservative treatment subgroup and 1,125 patients in the HAS subgroup, met the inclusion criteria. The test for subgroup differences showed that the HAS subgroup had a statistically significant 6.5-point higher HHS ≤ 12 months post-intervention (F = 12.8; df = 1.5; p = 0.016) and a statistically significant 9.8-point higher iHOT ≤ 24 months post-intervention (F = 5.3; df = 1.1; p = 0.035) than the conservative treatment subgroup. Other functional (HOOS, HOS) and pain (VAS, NRS) outcome parameters analyzed did not show statistically significant differences.

Conclusion

This multilevel meta-analysis of 21 RCTs with a total of 1,799 FAI patients showed a statistically significant higher HHS ≤ 12 months post-intervention and iHOT ≤ 24 months post-intervention, favouring the HAS subgroup compared to the conservative treatment subgroup, without reaching minimal clinically important differences (MCIDs).

Demographic and Socioeconomic Patient Data Are Rarely Included in Randomized Controlled Trials for Femoral Acetabular Impingement and Hip Arthroscopy: A Systematic Review

Purpose

To determine the rate of reporting for sociodemographic variables in randomized controlled trials (RCTs) investigating femoral acetabular impingement (FAI) and hip arthroscopy.

Methods

PubMed, Scopus, and Web of Science were queried for articles relating to FAI and hip arthroscopy. Articles included in final analysis were RCTs investigating operative management of FAI. Included RCTs were analyzed for reporting of age and sex or gender as well as the following sociodemographic variables: race, ethnicity, insurance status, income, housing status, work status, and education level in the results section or any section of the paper. Data was analyzed using χ2 and Fisher exact tests with significance defined as P < .05.

Results

Forty-eight RCTs were identified from 2011 to 2023. Age was reported in 48 of 48 (100%) of included papers; sex or gender was reported in 47 of 48 (97.9%). Reporting of sociodemographic variables in any section respectively was: race (7/48, 14.6%), ethnicity (4/48, 8.33%), insurance status (0/48, 0%), income (1/48, 2.08%), housing status (0/48, 0%), work status (3/48, 6.25%), and education (2/48, 4.17%). There was no significant difference for reporting demographic variables with respect to journal or year of publication (P = .666 and P = .761, respectively). Sociodemographic variables (9/48) were reported significantly less frequently than age and sex or gender (48/48) (P < .001).

Conclusions

This study found that sociodemographic variables in FAI and hip arthroscopy RCTs are reported with much lower frequency than age and sex or gender. These findings may demonstrate the need to include patient sociodemographic data in RCTs so that their results can be better generalized and applied to the appropriate patient population.

Level of Evidence

Level II, systematic review of level I and II evidence.

One-dimension statistical parametric mapping in lower limb biomechanical analysis: A systematic scoping review

BACKGROUND

Biomechanics significantly impacts sports performance and injury prevention. Traditional methods like discrete point analysis simplify continuous kinetic and kinematic data, while one-dimensional Statistical Parametric Mapping (spm1d) evaluates entire movement curves. Nevertheless, spm1d's application in sports and injury research is limited. As no systematic review exists, we conducted a scoping systematic review, synthesizing the current applications of spm1d across various populations, activities, and injuries. This review concludes by identifying gaps in the literature and suggesting areas for future research.

RESEARCH QUESTION

What research exists using spm1d in sports biomechanics, focusing on the lower limbs, in what populations, and what are the current research gaps?

METHODS

We searched PubMed, Embase, Web of Science, and ProQuest databases for the following search string: "(((knee) OR (hip)) OR (ankle)) OR (foot) OR (feet) AND (statistical parametric mapping)". English peer-reviewed studies assessing lower limb kinetics or kinematics in different sports or sports-related injuries were included. Reviews, meta-analyses, conference abstracts, and grey literature were excluded.

RESULTS

Our search yielded 165 papers published since 2012. Among these, 112 examined healthy individuals (67 %), and 53 focused on injured populations (33 %). Running (n = 45), cutting (n = 25), and jumping/landing (n = 18) were the most common activities. The predominant injuries were anterior cruciate ligament rupture (n = 21), chronic ankle instability (n = 18), and hip-related pain (n = 9). The main research gaps included the unbalanced populations, underrepresentation of common sports and sport-related injuries, gender inequality, a lack of studies in non-laboratory settings, a lack of studies on varied sports gear, and a lack of reporting standardization.

SIGNIFICANCE

This review spotlights crucial gaps in spm1d research within sports biomechanics. Key issues include a lack of studies beyond laboratory settings, underrepresentation of various sports and injuries, and gender disparities in research populations. Addressing these gaps can significantly enhance the application of spm1d in sports performance, injury analysis, and rehabilitation.