Examination skills in the assessment of the musculoskeletal system in children and adolescents

Muscle Weakness: A Misleading Presentation in Children With Distinctive Syndromic Entities (Clinical Case Reports)

Marked ligamentous hyperlaxity and muscle weakness/wasting associated with awkward gait are the main deficits confused with the diagnosis of myopathy. Seven children (6 boys and 1 girl with an average age of 8 years) were referred to our department because of diverse forms of skeletal abnormalities. No definitive diagnosis was made, and all underwent a series of sophisticated investigations in other institutes in favor of myopathy. We applied our methodology through the clinical and radiographic phenotypes followed by targeted genotypic confirmation. Three children (2 boys and 1 girl) were compatible with the diagnosis of progressive pseudorheumatoid chondrodysplasia. The genetic mutation was correlated with the WISP 3 gene actively expressed by articular chondrocytes and located on chromosome 6. Klinefelter syndrome was the diagnosis in 2 boys. Karyotyping confirmed 47,XXY (aneuploidy of Klinefelter syndrome). And 2 boys were finally diagnosed with Morquio syndrome (MPS type IV A) as both showed missense mutations in the N-acetylgalactosamine-sulfate sulfatase gene. Misdiagnosis can lead to the initiation of a long list of sophisticated investigations.

Cross-cultural validation of the paediatric Gait, Arms, Legs, Spine (pGALS) tool for the screening of musculoskeletal disorders in Mexican children

The aim of this study was to validate the paediatric Gait, Arms, Legs, Spine (pGALS) tool for Mexican Spanish to screen Mexican paediatric population for musculoskeletal (MSK) disorders. A cross-sectional study was performed in the Paediatric Hospital of the Mexican Social Security Institute in Guadalajara, Jalisco. The validation included children and adolescents aged 6-16 years, 87 patients with musculoskeletal disorders and 88 controls without musculoskeletal disorders. The cross-cultural validation followed the current published guidelines. The average pGALS administration time was 2.9 min (SD 0.54). The internal consistency score (Cronbach's α) was 0.90 (0.89 for inflammatory and 0.77 for non-inflammatory disorders) for MSK disorders, with a sensitivity of 97 % (95 % CI 92-99 %), a specificity of 93 % (95 % CI 86-97 %), a LR+ of 14.3, and a ROC curve of 0.95 (95 % CI 0.92-0.98 %). The inflammatory disorders group had a sensitivity of 97 % (95 % CI 86-99 %), a specificity of 93 % (95 % CI 86-97 %), a LR+ of 14.2, and a ROC curve of 0.95 % (95 % CI 0.91-0.99 %). The non-inflammatory disorders group had a sensitivity of 98 % (95 % CI 89-99 %), a specificity of 93 % (95 % CI 86-97 %), and a LR+ of 14.37, with a ROC curve of 0.95 % (95 % CI 0.92-0.98 %). pGALS is a valid screening tool, fast, easy to administer, and useful for detecting musculoskeletal disorders in Mexican children and adolescents.

Acceptability and practicality of pGALS in screening for rheumatic disease in Malawian children

The pGALS (paediatric Gait, Arms, Legs, Spine) Musculoskeletal (MSK) screen is validated in English-speaking school-aged children and has been shown to be useful in acute paediatric practice in the UK. The aim of this study is to evaluate the practicality and acceptability of pGALS in children in an acute hospital setting in Malawi. School-aged inpatients and children presenting to the Queen Elizabeth Hospital Blantyre, Malawi, participated. Practicality (time taken, degree of completion) and patient/parent assessed acceptability (time take, discomfort) were assessed using a 'smiley face' visual analogue scale. Fifty-one children (median age 8 years) were assessed; 23 out of 51 (45%) in the emergency department and the remainder were inpatients. Most presentations were infection or trauma related (n = 35, 69%). Practicality of pGALS was good [median time to complete pGALS--4 min (range 1.8-7.4)] and completed in 48 out of 51 children (94%). Acceptability was high; 98% of parents considered the time taken to be acceptable, 84% of children deemed little/no additional discomfort. Abnormalities using pGALS were found in 21 out of 51 (41%), mostly in the lower limbs. The pGALS MSK screen was practical and acceptable in this acute setting. Abnormal findings were common.

Pediatric regional examination of the musculoskeletal system: a practice- and consensus-based approach

OBJECTIVE

Competent examination of the pediatric musculoskeletal (MSK) system is a vital component of clinical assessment of children with MSK presentations. The aim was to develop a regional MSK examination for school-age children that is age appropriate and reflects clinical practice.

METHODS

Qualitative and quantitative analyses involving video observation of clinical examination technique, systematic review, and expert consensus were employed to reveal descriptions, frequencies, and variations in technique for joint regions in various clinical scenarios. Systematic review and data from clinical observation were combined with feedback from a group of pediatric MSK experts through a web-based survey. All results were collated and discussed by consensus development groups to derive the pediatric Regional Examination of the Musculoskeletal System (pREMS).

RESULTS

A total of 48 pediatric MSK expert clinicians were involved to derive pREMS. Systematic review revealed a paucity of evidence about regional pediatric MSK examination. Video observations of MSK examinations (a total of 2,901 maneuvers) performed by pediatric MSK experts (n = 11 doctors and 8 therapists) of 89 school-age children attending outpatient clinics in 7 UK pediatric rheumatology centers were followed by semistructured interviews with 14 of 19 clinicians. Video observation showed variation in examination techniques, most frequently at the hip and knee in the context of mechanical and inflammatory clinical scenarios.

CONCLUSION

pREMS is the first practice- and consensus-based regional pediatric MSK examination for school-age children. The structured approach is an important step toward improved pediatric MSK clinical skills relevant to clinical training.

Acceptability and practicality of musculoskeletal examination in acute general pediatric assessment

OBJECTIVE

To evaluate the practicality and the acceptability of pGALS (pediatric Gait, Arms, Legs and Spine) screening, a simple pediatric musculoskeletal screening examination, when performed as part of an acute pediatric assessment.

STUDY DESIGN

Consecutive school-aged children attending an acute pediatric assessment unit were assessed with the addition of pGALS to the routine clinical examination. Practicality (ie, time taken, degree of completion) and patients/parent-assessed acceptability (ie, time taken, discomfort caused) were recorded.

RESULTS

Fifty consecutive school-aged children (median age 8 years) were evaluated by pGALS. Median time taken was 3 minutes (range 1.2-5.3), and examination was completed in 47/50 (96%) children. Acceptability of pGALS was deemed high: time taken was "about right" (98% children, 94% parents) and caused no or little discomfort (72% of children, 92% of parents). Abnormalities on pGALS examination were common, with most (17/50, 34%) explained by confirmed musculoskeletal disease, and 6 of 50 (12%) had non- musculoskeletal disease.

CONCLUSIONS

PGALS is practical and acceptable to perform in acute pediatric assessment performed by a non expert in musculoskeletal medicine. Abnormal musculoskeletal findings are common as part of the pGALS examination but need to be interpreted in the global clinical context and assessment.

Musculoskeletal screening examination (pGALS) for school-age children based on the adult GALS screen

OBJECTIVE

To develop and validate a musculoskeletal screening examination applicable to school-age children based on the adult Gait, Arms, Legs, Spine (GALS) screen.

METHODS

Adult GALS was tested in consecutive school-age children attending pediatric rheumatology clinics and was compared with an examination conducted, on the same day, by a pediatric rheumatologist who classified children as having abnormal or normal joints. Adult GALS was tested for validity compared with the pediatric rheumatologist's assessment and deficiencies in adult GALS were identified. Experts proposed amendments to adult GALS, achieving consensus by modified Delphi techniques. The resultant pediatric screening tool (pGALS) was tested (methodology identical to the testing of adult GALS) in an additional group of children.

RESULTS

Adult GALS was tested in 50 children (median age 11 years, range 4-16), of whom 37 (74%) had juvenile idiopathic arthritis. Adult GALS missed important abnormalities in 18% of children, mostly at the ankle, foot, and temporomandibular joints. The pGALS was tested in 65 children (median age 13 years, range 5-17 years) and demonstrated excellent sensitivity (97-100%) and specificity (98-100%) at all joints, with high acceptability scored by child and parent/guardian. The median time to perform pGALS was 2 minutes (range 1.5-3 minutes).

CONCLUSION

The pGALS musculoskeletal screening tool has excellent validity, is quick to perform, and is acceptable to school-age children and parents/guardians. We propose that pGALS be incorporated into undergraduate and postgraduate medical training to improve pediatric musculoskeletal clinical skills and facilitate diagnosis and referral to specialists.