Statistical Parametric Mapping as a Measure of Differences Between Limbs: Applications to Clinical Populations.

This study demonstrated the ability of SPM to assess interlimb differences in lower-extremity movement during 2 example tasks: running and landing. Three-dimensional motion analysis was used to determine sagittal and frontal plane lower-extremity joint angles in (1) young and older individuals during running and (2) patients with anterior cruciate ligament reconstruction and uninjured control athletes during landing. Interlimb differences within each group were compared using SPM and paired t tests on peak discrete angles. No differences between limbs were found between young and older runners using SPM. Peak ankle eversion and plantar flexion angles differed between limbs in young and older runners. Sagittal plane hip angle varied between limbs in uninjured control athletes. Frontal plane ankle angle and sagittal plane knee and hip angles differed between limbs in patients with anterior cruciate ligament reconstruction using SPM and discrete analysis. These data suggest that SPM can be useful to determine clinically meaningful interlimb differences during running and landing in multiple populations. PMID: 31629339 [PubMed - as supplied by publisher]
Source: Journal of Applied Biomechanics - Category: Sports Medicine Tags: J Appl Biomech Source Type: research

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Publication date: Available online 13 November 2019Source: Arthroscopy TechniquesAuthor(s): R. Nelson Mead, Robert Benedict, Orr LimpisvastiAbstractAnterior knee pain and patella fracture are 2 potential complications of bone-patellar-bone autograft anterior cruciate ligament reconstruction. Techniques have been developed to minimize the risk of these complications, including filling the defects with autologous bone fragments and augmenting with biologic agents. We have developed a technique that uses a graft collection device to collect the autologous bone graft generated during surgery. This graft augments the larger bon...
Source: Arthroscopy Techniques - Category: Surgery Source Type: research
ConclusionACL rehabilitation without a knee brace can indirectly prevent rerupture and is a cheaper as well as a safer method with better outcomes.
Source: European Journal of Orthopaedic Surgery and Traumatology - Category: Orthopaedics Source Type: research
AbstractBackgroundAnterior cruciate ligament (ACL) rupture is a common injury affecting non-elite and elite athletes. Although most ACL reconstructions restore the mechanical stability of the injured knee, the rate of return to sport (RTS) is varied.Hypothesis/purposeWe aimed to identify why non-elite athletes fail to return to pre-injury sport level. The primary objective was to assess the frequency of RTS (including type of sport, timing, level, and duration), and the secondary objective was to assess the surgical (injury, type of surgery, re-injury) and patient (demographics, function, symptoms, social, psychological) f...
Source: European Journal of Orthopaedic Surgery and Traumatology - Category: Orthopaedics Source Type: research
Publication date: Available online 11 November 2019Source: Arthroscopy TechniquesAuthor(s): David Figueroa, Rafael Calvo, Alejandro Vaisman, Sergio Arellano, Francisco Figueroa, Rodrigo Donoso, Nazira Bernal, Luis A. O'ConnellAbstractThe anterior cruciate ligament is the most commonly injured ligament, with up to 10% of surgery failure. Atraumatic instability in the early postoperative period (
Source: Arthroscopy Techniques - Category: Surgery Source Type: research
Authors: Staples JR, Schafer KA, Smith MV, Motley J, Halstead M, Blackman A, Haas A, Steger-May K, Matava MJ, Wright RW, Brophy RH Abstract CONTEXT: Patients with anterior cruciate ligament (ACL) tears are likely to have deficient dynamic postural stability compared with healthy sex- and age-matched controls. OBJECTIVES: To test the hypothesis that patients undergoing ACL reconstruction have decreased dynamic postural stability compared with matched healthy controls. DESIGN: Prospective case-control study. SETTING: Orthopedic sports medicine and physical therapy clinics. PATIENTS OR OTHER PARTICIPAN...
Source: Journal of Sport Rehabilitation - Category: Sports Medicine Tags: J Sport Rehabil Source Type: research
CONCLUSIONS: We demonstrated that the combined therapy with BMP-2 and PRF achieves synergistic effects on tendon-bone healing and holds great potential for the treatment of ACL reconstruction. PMID: 31696456 [PubMed - in process]
Source: European Review for Medical and Pharmacological Sciences - Category: Drugs & Pharmacology Tags: Eur Rev Med Pharmacol Sci Source Type: research
CONCLUSION: QT graft for ACLR did not result in inferior subjective outcome compared with STG graft. However, QT graft was associated with lower donor site morbidity than STG grafts but resulted in more quadriceps muscle strength deficiency than hamstring grafts. Both graft types had similar knee stability outcome. TRIAL REGISTRATION NUMBER: NCT02173483. PMID: 31704697 [PubMed - as supplied by publisher]
Source: British Journal of Sports Medicine - Category: Sports Medicine Authors: Tags: Br J Sports Med Source Type: research
We describe a novel hamstring harvesting technique using the “Rule of Twos” as an aide-memoire to dissect the conjoint tendon in an Asian population undergoing anterior cruciate ligament reconstruction.In a prospective study performed on 17 patients to validate this technique, a 2cm incision is placed 2cm distal and medial to the tip of the tibial tubercle. The surgeon then measured the following variables and calculated their means: 1) Distance from the tip of the tibial tuberosity to the proximal edge of the conjoint tendon (19.4±1.4mm), 2) Width of the conjoint tendon insertion (18.8±1.0mm), 3)...
Source: Journal of Orthopaedics - Category: Orthopaedics Source Type: research
ConclusionsThis study recommends using ACL grafts with lower stiffness and a circular cross section to reduce tunnel enlargement and graft wear following ACLR.
Source: Knee Surgery, Sports Traumatology, Arthroscopy - Category: Orthopaedics Source Type: research
This study aimed to characterize the chronological changes in anterior knee stability after anatomical ACL reconstruction and to compare the anterior knee stability achieved with bone–patellar tendon–bone (BPTB) and hamstring tendon (HT) grafts. A total of 59 patients underwent anatomical rectangular tunnel ACL reconstruction using the BPTB graft and 23 patients underwent anatomical double-bundle ACL reconstruction using the HT graft. Anterior knee stability was quantitatively assessed using the KneeLax 3 arthrometer at 6 months, 1 year, and 2 years after surgery using side-to-side differences. The values for a...
Source: Journal of Knee Surgery - Category: Orthopaedics Authors: Tags: Original Article Source Type: research
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