J Orthop Sports Phys Ther., Epub 24 October 2008. doi:10.2519/jospt.2009.2940

STUDY DESIGN: Resident's case problem. BACKGROUND: The role of premanipulative testing of the cervical spine is an area of controversy, and there are very few data to inform and guide practitioners on the use of ligamentous stability tests when assessing the upper cervical spine. DIAGNOSIS: A 23-year-old female was referred to physical therapy by a neurologist for the management of intractable headaches of possible musculoskeletal origin. Her Neck Disability Index score was 54% and she rated her headache pain from 3/10 to 9/10 on a Numerical Pain Rating Scale. She reported a 2-year history of intermittent lower extremity paresthesias without a known mechanism or current symptoms. She was treated in physical therapy for 11 visits with improvements in cervical range of motion, strength, and intensity of her headaches, but noted no change in the frequency of headaches. She was subsequently referred to the primary author for a second opinion and potential manual therapy interventions. Initial neurological screening examination for upper and lower motor neuron lesions was unremarkable. Assessment of the transverse ligament, using the anterior shear test in supine, brought on paresthesias in both feet and her toes. The paresthesias continued after the cessation of the test. The Sharp-Purser test performed in sitting, immediately after the transverse ligament test, abolished the paresthesias. She was then referred back to her primary care physician for further evaluation. Subsequent radiographs and magnetic resonance imaging revealed that the patient had a C2-C3 Klippel-Feil congenital fusion and os odontoideum. The patient was examined by a neurosurgeon who concluded that she was not a surgical candidate. Her neurological symptoms completely resolved, but she continued to have headaches. DISCUSSION: Os odontoideum is a clinically important condition, given that the mobile dens may render the transverse ligament incompetent, leading to atlantoaxial instability. Both the role and sequencing of upper cervical ligamentous testing is controversial. The results of this case report suggest that physical therapists should be cognizant of this condition and consider screening the upper cervical ligaments prior to manual or mechanical interventions to this region. LEVEL OF EVIDENCE:  Differential diagnosis, level 4.

J Orthop Sports Phys Ther. 2008;38(8):465-475, published online 27 June 2008. doi:10.2519/jospt.2008.2747

KEY WORDS: Klippel-Feil syndrome, manual therapy, neck, transverse ligament, upper cervical instability

SYNOPSIS: We propose describing a manipulative technique using 6 characteristics:

1. Rate of force application: Describe the rate at which the force was applied.
2. Location in range of available movement: Describe whether motion was intended to occur only at the beginning of the available range of movement, towards the middle of the available range of movement, or at the end point of the available range of movement.
3. Direction of force: Describe the direction in which the therapist imparts the force.
4. Target of force: Describe the location to which the therapist intended to apply the force.
5. Relative structural movement: Describe which structure or region was intended to remain stable and which structure or region was intended to move, with the moving structure or region being named first and the stable segment named second, separated by the word "on."
6. Patient position: Describe the position of the patient, for example, supine, prone, recumbent. This would include any premanipulative positioning of a region of the body, such as being positioned in rotation or side bending.

J Orthop Sports Phys Ther. 2008;38(3):A1-A6. doi:10.2519/jospt.2008.0301

STUDY DESIGN: Case report. BACKGROUND: Following total knee arthroplasty (TKA), restoration of normal quadriceps muscle function is rare. One month after surgery, quadriceps torque (force) is only 40% of preoperative values and quadriceps activation is only 82% of preoperative levels, despite initiating postoperative rehabilitation the day after surgery. Early application of neuromuscular electrical stimulation (NMES) offers a possible approach to minimize loss of quadriceps torque more effectively than traditional rehabilitation exercises alone. CASE DESCRIPTION: A 65-year-old female underwent a right, cemented TKA. Isometric quadriceps and hamstrings muscle torque were measured preoperatively and 3, 6, and 12 weeks after TKA. Quadriceps muscle activation was measured using a doublet interpolation technique at the same time points. The patient participated in a traditional TKA rehabilitation program augmented by NMES, which was initiated 48 hours after surgery and continued twice/day for the first 3 weeks, and once daily for 3 additional weeks. OUTCOMES: Preoperatively, the involved quadriceps produced 75% of the torque of the uninvolved side and demonstrated only 72.9% activation. At 3, 6, and 12 weeks after TKA, quadriceps torque was greater than the preoperative values of the involved side by 16%, 40% and 56%, respectively. Similarly, activation improved to 93.4%, 94.6%, and 93.5% at 3, 6, and 12 weeks after TKA. DISCUSSION: Mitigating quadriceps muscle weakness immediately after TKA using early NMES may improve functional outcomes, because quadriceps weakness has been associated with numerous functional limitations and an increased risk for falls. Despite presenting preoperatively with substantial quadriceps torque and activation deficits, the patient in this case demonstrated improvements in quadriceps function at all time points measured, all of which were superior to those reported in the literature.  The patient also made substantial improvements in functional outcomes, including the Knee Injury and Osteoarthritis Outcome Score (KOOS), 6-minute walk test, timed up and go (TUG) test, stair-climbing test, and the SF-36 Physical Component Score. Appropriately controlled clinical trials will be necessary to determine whether such favorable outcomes following TKA are specifically attributable to the addition of NMES to the rehabilitation program. 

J Orthop Sports Phys Ther. 2007, 37(7):364-371, published online 29 May 2007. doi:10.2519/jospt.2007.2541

KEY WORDS: electrical stimulation, knee replacement, muscle activation, rehabilitation