In a secondary care setting, differences between neck pain subgroups classified using the Quebec task force...

Area of Science:

• Orthopedics
• Neurology
• Pain Management

Background:

• The Quebec Task Force Classification System subgroups, known for prognostic value in low back pain, were untested in neck pain (NP).
• Chronic NP patients referred to outpatient hospital departments were the focus of this study.

Purpose of the Study:

• To investigate the association between NP subgroups, baseline characteristics, and patient outcomes.
• To evaluate the prognostic implications of NP subgroups in an outpatient hospital setting.

Main Methods:

• An observational study utilizing longitudinal data from routine clinical records.
• Patients were categorized into Local NP, NP with arm pain (above/below elbow), and NP with nerve root involvement (NP + NRI).
• Pain intensity and activity limitation were primary outcomes, analyzed using linear mixed models.

Main Results:

• 1,852 patients were classified; 64% were female, with a mean age of 49.
• All subgroups showed slight pain improvement over time, with significant time-subgroup interaction but small effect sizes.
• The local NP subgroup improved slowest initially but maintained the lowest pain. NP + NRI patients showed the greatest pain improvement at 6 and 12 months.

Conclusions:

• Baseline and outcome differences exist between NP subgroups classified by the Quebec Task Force system.
• Outcome differences were generally small, primarily distinguishing the local NP subgroup.
• Results from this chronic NP cohort with limited improvement may not generalize to other populations or settings.